{"id":1925,"date":"2025-05-26T09:33:35","date_gmt":"2025-05-26T09:33:35","guid":{"rendered":"https:\/\/tajhizkaranrayka.com\/blog\/?p=1925"},"modified":"2025-06-02T06:13:10","modified_gmt":"2025-06-02T06:13:10","slug":"%d8%b6%d8%b1%db%8c%d8%a8-%d8%a7%d9%86%d8%aa%d9%82%d8%a7%d9%84-%d8%ad%d8%b1%d8%a7%d8%b1%d8%aa-%d8%a7%d8%b3%d8%aa%db%8c%d9%84-304-%d8%aa%d8%ad%d9%84%db%8c%d9%84-%d8%ac%d8%a7%d9%85%d8%b9-%d8%ae%d9%88","status":"publish","type":"post","link":"https:\/\/tajhizkaranrayka.com\/blog\/%d8%b6%d8%b1%db%8c%d8%a8-%d8%a7%d9%86%d8%aa%d9%82%d8%a7%d9%84-%d8%ad%d8%b1%d8%a7%d8%b1%d8%aa-%d8%a7%d8%b3%d8%aa%db%8c%d9%84-304-%d8%aa%d8%ad%d9%84%db%8c%d9%84-%d8%ac%d8%a7%d9%85%d8%b9-%d8%ae%d9%88\/","title":{"rendered":"\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4: \u062a\u062d\u0644\u06cc\u0644 \u062c\u0627\u0645\u0639 \u062e\u0648\u0627\u0635 \u062d\u0631\u0627\u0631\u062a\u06cc"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9\u06cc \u0627\u0632 \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u0628\u0631\u062c\u0633\u062a\u0647 \u0641\u0648\u0644\u0627\u062f \u0632\u0646\u06af\u200c\u0646\u0632\u0646 \u0622\u0633\u062a\u0646\u06cc\u062a\u06cc\u060c \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0645\u06a9\u0627\u0646\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0645\u0637\u0644\u0648\u0628\u060c \u06a9\u0627\u0631\u0628\u0631\u062f \u06af\u0633\u062a\u0631\u062f\u0647\u200c\u0627\u06cc \u062f\u0631 \u0635\u0646\u0627\u06cc\u0639 \u0645\u062e\u062a\u0644\u0641 \u0627\u0632 \u062c\u0645\u0644\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc\u060c \u0635\u0646\u0627\u06cc\u0639 \u063a\u0630\u0627\u06cc\u06cc\u060c \u062f\u0627\u0631\u0648\u0633\u0627\u0632\u06cc \u0648 \u0633\u0627\u062e\u062a\u200c\u0648\u0633\u0627\u0632 \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u0648 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062a\u0628\u0627\u062f\u0644 \u062d\u0631\u0627\u0631\u062a \u062f\u0631 \u0622\u0646\u200c\u0647\u0627 \u0646\u0642\u0634 \u062d\u06cc\u0627\u062a\u06cc \u062f\u0627\u0631\u062f\u060c \u062f\u0631\u06a9 \u062f\u0642\u06cc\u0642 <strong>\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4<\/strong> \u0636\u0631\u0648\u0631\u06cc \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0628\u0631\u0631\u0633\u06cc \u062c\u0627\u0645\u0639 \u0627\u06cc\u0646 \u0636\u0631\u06cc\u0628\u060c \u0639\u0648\u0627\u0645\u0644 \u0645\u0624\u062b\u0631 \u0628\u0631 \u0622\u0646 \u0648 \u0645\u0644\u0627\u062d\u0638\u0627\u062a \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0645\u0631\u062a\u0628\u0637 \u0628\u0627 <a href=\"https:\/\/tajhizkaranrayka.com\/blog\/stainless-steel304\/\"><strong>\u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4<\/strong><\/a> \u0645\u06cc\u200c\u067e\u0631\u062f\u0627\u0632\u062f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0645\u0639\u0631\u0641\u06cc \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0648 \u0633\u0627\u062e\u062a\u0627\u0631 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0622\u0646<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4\u060c \u06a9\u0647 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0627 \u0646\u0627\u0645 \u0641\u0648\u0644\u0627\u062f \u0632\u0646\u06af\u200c\u0646\u0632\u0646 \u06f1\u06f8-\u06f8 \u0646\u06cc\u0632 \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u062a\u0631\u06a9\u06cc\u0628\u06cc \u0627\u0632 \u06f1\u06f8 \u062a\u0627 \u06f2\u06f0 \u062f\u0631\u0635\u062f \u06a9\u0631\u0648\u0645 \u0648 \u06f8 \u062a\u0627 \u06f1\u06f0.\u06f5 \u062f\u0631\u0635\u062f \u0646\u06cc\u06a9\u0644 \u0627\u0633\u062a. \u0648\u062c\u0648\u062f \u0627\u06cc\u0646 \u0639\u0646\u0627\u0635\u0631\u060c \u0628\u0647 \u0648\u06cc\u0698\u0647 \u06a9\u0631\u0648\u0645\u060c \u0645\u0648\u062c\u0628 \u0645\u0642\u0627\u0648\u0645\u062a \u0628\u0647 \u062e\u0648\u0631\u062f\u06af\u06cc \u0639\u0627\u0644\u06cc \u0648 \u062e\u0648\u0627\u0635 \u062d\u0631\u0627\u0631\u062a\u06cc \u0645\u0646\u0627\u0633\u0628 \u062f\u0631 \u0627\u06cc\u0646 \u0646\u0648\u0639 <a href=\"https:\/\/tajhizkaranrayka.com\/blog\/full-familiarity-with-stainless-steel\/\">\u0627\u0633\u062a\u06cc\u0644 <\/a>\u0645\u06cc\u200c\u0634\u0648\u062f. \u0639\u0646\u0627\u0635\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0646\u0638\u06cc\u0631 \u06a9\u0631\u0628\u0646 (\u062d\u062f\u0627\u06a9\u062b\u0631 \u06f0.\u06f0\u06f8 \u062f\u0631\u0635\u062f)\u060c \u0645\u0646\u06af\u0646\u0632 (\u062d\u062f\u0627\u06a9\u062b\u0631 \u06f2 \u062f\u0631\u0635\u062f) \u0648 \u0633\u06cc\u0644\u06cc\u0633\u06cc\u0645 (\u062d\u062f\u0627\u06a9\u062b\u0631 \u06f1 \u062f\u0631\u0635\u062f) \u0646\u06cc\u0632 \u062f\u0631 \u0645\u0642\u0627\u062f\u06cc\u0631 \u06a9\u0645\u062a\u0631 \u062d\u0636\u0648\u0631 \u062f\u0627\u0631\u0646\u062f \u06a9\u0647 \u0628\u0631 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0646\u0647\u0627\u06cc\u06cc \u0622\u0646 \u062a\u0623\u062b\u06cc\u0631\u06af\u0630\u0627\u0631 \u0647\u0633\u062a\u0646\u062f. \u0627\u06cc\u0646 \u062a\u0631\u06a9\u06cc\u0628 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u062e\u0627\u0635\u060c \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0631\u0627 \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0627\u06a9\u0633\u06cc\u062f\u0627\u0633\u06cc\u0648\u0646 \u062a\u0627 \u062f\u0645\u0627\u06cc \u062a\u0642\u0631\u06cc\u0628\u06cc \u06f9\u06f2\u06f5 \u062f\u0631\u062c\u0647 \u0633\u0627\u0646\u062a\u06cc\u200c\u06af\u0631\u0627\u062f \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u06a9\u0627\u0631\u06a9\u0631\u062f \u067e\u06cc\u0648\u0633\u062a\u0647 \u0648 \u06f8\u06f7\u06f5 \u062f\u0631\u062c\u0647 \u0633\u0627\u0646\u062a\u06cc\u200c\u06af\u0631\u0627\u062f \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u0645\u062a\u0646\u0627\u0648\u0628\u060c \u0645\u0642\u0627\u0648\u0645 \u0645\u06cc\u200c\u0633\u0627\u0632\u062f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0645\u0628\u0627\u0646\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a: \u062a\u0639\u0627\u0631\u06cc\u0641 \u06a9\u0644\u06cc\u062f\u06cc<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0631\u0627\u06cc \u062a\u0628\u06cc\u06cc\u0646 \u0645\u0641\u0647\u0648\u0645 <strong>\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4<\/strong>\u060c \u0622\u0634\u0646\u0627\u06cc\u06cc \u0628\u0627 \u0645\u0641\u0627\u0647\u06cc\u0645 \u0628\u0646\u06cc\u0627\u062f\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0644\u0627\u0632\u0645 \u0627\u0633\u062a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc (Thermal Conductivity &#8211; k):<\/strong> \u0627\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0630\u0627\u062a\u06cc \u0645\u0627\u062f\u0647\u060c \u0628\u06cc\u0627\u0646\u06af\u0631 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0622\u0646 \u062f\u0631 \u0627\u0646\u062a\u0642\u0627\u0644 \u06af\u0631\u0645\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u0631\u062a\u0639\u0627\u0634\u0627\u062a \u0645\u0648\u0644\u06a9\u0648\u0644\u06cc \u0627\u0633\u062a. \u0648\u0627\u062d\u062f \u0622\u0646 \u0648\u0627\u062a \u0628\u0631 \u0645\u062a\u0631-\u06a9\u0644\u0648\u06cc\u0646 (W\/m\u00b7K) \u06cc\u0627 BTU \u0628\u0631 \u0633\u0627\u0639\u062a-\u0641\u0648\u062a-\u0641\u0627\u0631\u0646\u0647\u0627\u06cc\u062a (BTU\/(hr\u00b7ft\u00b7\u00b0F)) \u0627\u0633\u062a. \u0641\u0644\u0632\u0627\u062a \u0639\u0645\u0648\u0645\u0627\u064b \u0631\u0633\u0627\u0646\u0627\u0647\u0627\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc \u062e\u0648\u0628\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0646\u06cc\u0632 \u062f\u0631 \u0627\u06cc\u0646 \u062f\u0633\u062a\u0647 \u0642\u0631\u0627\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f\u060c \u0647\u0631\u0686\u0646\u062f \u0631\u0633\u0627\u0646\u0627\u06cc\u06cc \u0622\u0646 \u0646\u0633\u0628\u062a \u0628\u0647 \u0641\u0644\u0632\u0627\u062a\u06cc \u0645\u0627\u0646\u0646\u062f \u0645\u0633 \u0648 \u0622\u0644\u0648\u0645\u06cc\u0646\u06cc\u0648\u0645 \u06a9\u0645\u062a\u0631 \u0627\u0633\u062a.<\/li>\n\n\n\n<li><strong>\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0647\u0645\u0631\u0641\u062a\u06cc (Convective Heat Transfer Coefficient &#8211; h):<\/strong> \u0627\u06cc\u0646 \u0636\u0631\u06cc\u0628 \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0628\u06cc\u0646 \u06cc\u06a9 \u0633\u0637\u062d \u062c\u0627\u0645\u062f \u0648 \u06cc\u06a9 \u0633\u06cc\u0627\u0644 \u0645\u062a\u062d\u0631\u06a9 (\u06af\u0627\u0632 \u06cc\u0627 \u0645\u0627\u06cc\u0639) \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f. \u0627\u06cc\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0628\u0647 \u0639\u0648\u0627\u0645\u0644\u06cc \u0646\u0638\u06cc\u0631 \u0646\u0648\u0639 \u0633\u06cc\u0627\u0644\u060c \u0633\u0631\u0639\u062a \u062c\u0631\u06cc\u0627\u0646\u060c \u062e\u0648\u0627\u0635 \u0641\u06cc\u0632\u06cc\u06a9\u06cc \u0633\u06cc\u0627\u0644 (\u0645\u0627\u0646\u0646\u062f \u0648\u06cc\u0633\u06a9\u0648\u0632\u06cc\u062a\u0647\u060c \u0686\u06af\u0627\u0644\u06cc\u060c \u06af\u0631\u0645\u0627\u06cc \u0648\u06cc\u0698\u0647\u060c \u0631\u0633\u0627\u0646\u0627\u06cc\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc)\u060c \u0647\u0646\u062f\u0633\u0647 \u0633\u0637\u062d \u0648 \u0627\u062e\u062a\u0644\u0627\u0641 \u062f\u0645\u0627 \u0648\u0627\u0628\u0633\u062a\u0647 \u0627\u0633\u062a. \u0648\u0627\u062d\u062f \u0622\u0646 \u0648\u0627\u062a \u0628\u0631 \u0645\u062a\u0631 \u0645\u0631\u0628\u0639-\u06a9\u0644\u0648\u06cc\u0646 (W\/m\u00b2\u00b7K) \u06cc\u0627 BTU \u0628\u0631 \u0633\u0627\u0639\u062a-\u0641\u0648\u062a \u0645\u0631\u0628\u0639-\u0641\u0627\u0631\u0646\u0647\u0627\u06cc\u062a (BTU\/(hr\u00b7ft\u00b2\u00b7\u00b0F)) \u0627\u0633\u062a.<\/li>\n\n\n\n<li><strong>\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u06a9\u0644\u06cc (Overall Heat Transfer Coefficient &#8211; U):<\/strong> \u0627\u06cc\u0646 \u0636\u0631\u06cc\u0628\u060c \u06a9\u0647 \u0628\u0647 \u0622\u0646 U-value \u0646\u06cc\u0632 \u06af\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0646\u0631\u062e \u06a9\u0644\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0631\u0627 \u0627\u0632 \u06cc\u06a9 \u0633\u06cc\u0627\u0644 \u0628\u0647 \u0633\u06cc\u0627\u0644 \u062f\u06cc\u06af\u0631 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u06cc\u06a9 \u062f\u06cc\u0648\u0627\u0631\u0647 (\u0645\u0627\u0646\u0646\u062f \u062f\u06cc\u0648\u0627\u0631\u0647 \u0644\u0648\u0644\u0647 \u06cc\u0627 \u0645\u0628\u062f\u0644 \u062d\u0631\u0627\u0631\u062a\u06cc) \u0628\u06cc\u0627\u0646 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0636\u0631\u06cc\u0628 \u0634\u0627\u0645\u0644 \u0645\u0642\u0627\u0648\u0645\u062a\u200c\u0647\u0627\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u0647\u062f\u0627\u06cc\u062a \u062f\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 \u062c\u0627\u0645\u062f\u060c \u0647\u0645\u0631\u0641\u062a \u062f\u0631 \u0647\u0631 \u062f\u0648 \u0633\u0645\u062a \u062f\u06cc\u0648\u0627\u0631\u0647 \u0648 \u0647\u0631\u06af\u0648\u0646\u0647 \u0644\u0627\u06cc\u0647 \u0631\u0633\u0648\u0628\u06cc (Fouling) \u06cc\u0627 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0627\u0633\u062a.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"748\" height=\"578\" src=\"https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-1.png\" alt=\"\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0633\u062a\u06cc\u0644 304\" class=\"wp-image-1927\" srcset=\"https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-1.png 748w, https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-1-300x232.png 300w\" sizes=\"(max-width: 748px) 100vw, 748px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0634\u0627\u0631\u0647 \u0634\u062f\u060c \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0641\u0644\u0632\u0627\u062a \u0628\u0627 \u0631\u0633\u0627\u0646\u0627\u06cc\u06cc \u0628\u0627\u0644\u0627 \u0645\u0627\u0646\u0646\u062f \u0645\u0633 \u06cc\u0627 \u0622\u0644\u0648\u0645\u06cc\u0646\u06cc\u0648\u0645 \u067e\u0627\u06cc\u06cc\u0646\u200c\u062a\u0631 \u0627\u0633\u062a. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0645\u0642\u0627\u0648\u0645\u062a \u0628\u0647 \u062e\u0648\u0631\u062f\u06af\u06cc \u0639\u0627\u0644\u06cc \u0648 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u062a\u062d\u0645\u0644 \u062f\u0645\u0627\u0647\u0627\u06cc \u0628\u0627\u0644\u0627\u060c \u0622\u0646 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u060c \u0627\u0646\u062a\u062e\u0627\u0628\u06cc \u0627\u06cc\u062f\u0647\u200c\u0622\u0644 \u0645\u06cc\u200c\u0633\u0627\u0632\u062f. \u0646\u06a9\u062a\u0647 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 <strong>\u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0645\u0627\u060c \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f.<\/strong> \u062c\u062f\u0648\u0644 \u0632\u06cc\u0631\u060c \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0642\u0631\u06cc\u0628\u06cc \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0631\u0627 \u062f\u0631 \u062f\u0645\u0627\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u062f\u0645\u0627 (\u00b0C)<\/th><th>\u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc (W\/m\u00b7K)<\/th><\/tr><tr><td>\u06f2\u06f0<\/td><td>\u06f1\u06f6.\u06f2<\/td><\/tr><tr><td>\u06f1\u06f0\u06f0<\/td><td>\u06f1\u06f6.\u06f2<\/td><\/tr><tr><td>\u06f2\u06f0\u06f0<\/td><td>\u06f1\u06f7.\u06f5<\/td><\/tr><tr><td>\u06f3\u06f0\u06f0<\/td><td>\u06f1\u06f8.\u06f7<\/td><\/tr><tr><td>\u06f4\u06f0\u06f0<\/td><td>\u06f1\u06f9.\u06f9<\/td><\/tr><tr><td>\u06f5\u06f0\u06f0<\/td><td>\u06f2\u06f1.\u06f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0639\u0648\u0627\u0645\u0644 \u0645\u0624\u062b\u0631 \u0628\u0631 \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a (\u0647\u0645\u0631\u0641\u062a\u06cc \u0648 \u06a9\u0644\u06cc) \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0631 \u062e\u0644\u0627\u0641 \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u06a9\u0647 \u06cc\u06a9 \u062e\u0627\u0635\u06cc\u062a \u0630\u0627\u062a\u06cc \u0645\u0627\u062f\u0647 \u0627\u0633\u062a\u060c \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0628\u0647 \u0634\u062f\u062a \u0628\u0647 \u0634\u0631\u0627\u06cc\u0637 \u0645\u062d\u06cc\u0637\u06cc \u0648 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0648\u0627\u0628\u0633\u062a\u0647 \u0627\u0633\u062a. \u0645\u0647\u0645\u062a\u0631\u06cc\u0646 \u0639\u0648\u0627\u0645\u0644 \u0645\u0624\u062b\u0631 \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0646\u0648\u0639 \u0648 \u062e\u0648\u0627\u0635 \u0633\u06cc\u0627\u0644:<\/strong> \u062e\u0648\u0627\u0635 \u0641\u06cc\u0632\u06cc\u06a9\u06cc \u0633\u06cc\u0627\u0644 \u0645\u0627\u0646\u0646\u062f \u0686\u06af\u0627\u0644\u06cc\u060c \u0648\u06cc\u0633\u06a9\u0648\u0632\u06cc\u062a\u0647\u060c \u06af\u0631\u0645\u0627\u06cc \u0648\u06cc\u0698\u0647 \u0648 \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0622\u0646\u060c \u062a\u0623\u062b\u06cc\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645\u06cc \u0628\u0631 \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0647\u0645\u0631\u0641\u062a\u06cc \u062f\u0627\u0631\u0646\u062f. \u0633\u06cc\u0627\u0644\u0627\u062a\u06cc \u0628\u0627 \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0628\u0627\u0644\u0627\u062a\u0631 \u0648 \u0648\u06cc\u0633\u06a9\u0648\u0632\u06cc\u062a\u0647 \u067e\u0627\u06cc\u06cc\u0646\u200c\u062a\u0631\u060c \u0639\u0645\u0648\u0645\u0627\u064b \u0636\u0631\u06cc\u0628 \u0647\u0645\u0631\u0641\u062a\u06cc \u0628\u0627\u0644\u0627\u062a\u0631\u06cc \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0633\u0631\u0639\u062a \u0648 \u0631\u0698\u06cc\u0645 \u062c\u0631\u06cc\u0627\u0646 \u0633\u06cc\u0627\u0644:<\/strong> \u0627\u0641\u0632\u0627\u06cc\u0634 \u0633\u0631\u0639\u062a \u062c\u0631\u06cc\u0627\u0646 \u0633\u06cc\u0627\u0644 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062a\u0644\u0627\u0637\u0645 \u0648 \u06a9\u0627\u0647\u0634 \u0636\u062e\u0627\u0645\u062a \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0628\u0647 \u0646\u0648\u0628\u0647 \u062e\u0648\u062f \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0647\u0645\u0631\u0641\u062a\u06cc \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f. \u062c\u0631\u06cc\u0627\u0646 \u0645\u063a\u0634\u0648\u0634 (Turbulent Flow) \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0628\u0627\u0644\u0627\u062a\u0631\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0622\u0631\u0627\u0645 (Laminar Flow) \u062f\u0627\u0631\u062f.<\/li>\n\n\n\n<li><strong>\u0647\u0646\u062f\u0633\u0647 \u0648 \u0627\u0628\u0639\u0627\u062f \u0633\u0637\u062d:<\/strong> \u0634\u06a9\u0644\u060c \u0627\u0628\u0639\u0627\u062f \u0648 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u062a\u0645\u0627\u0633 \u0628\u0627 \u0633\u06cc\u0627\u0644\u060c \u0628\u0631 \u0627\u0644\u06af\u0648\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0628\u0631 \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u062a\u0623\u062b\u06cc\u0631\u06af\u0630\u0627\u0631 \u0627\u0633\u062a. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0633\u0637\u0648\u062d \u067e\u0631\u0647\u200c\u062f\u0627\u0631 (Finned Surfaces) \u0628\u0631\u0627\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u0633\u0637\u062d \u062a\u0628\u0627\u062f\u0644 \u062d\u0631\u0627\u0631\u062a \u0648 \u0628\u0647\u0628\u0648\u062f \u0636\u0631\u06cc\u0628 \u06a9\u0644\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0637\u0631\u0627\u062d\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0627\u062e\u062a\u0644\u0627\u0641 \u062f\u0645\u0627:<\/strong> \u0627\u06af\u0631\u0686\u0647 \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0647\u0645\u0631\u0641\u062a\u06cc \u0628\u0647 \u0637\u0648\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0628\u0647 \u0627\u062e\u062a\u0644\u0627\u0641 \u062f\u0645\u0627 \u0648\u0627\u0628\u0633\u062a\u0647 \u0646\u06cc\u0633\u062a\u060c \u0627\u0645\u0627 \u0646\u0631\u062e \u06a9\u0644\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0627\u062e\u062a\u0644\u0627\u0641 \u062f\u0645\u0627 \u0628\u06cc\u0634\u062a\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/li>\n\n\n\n<li><strong>\u0631\u0633\u0648\u0628\u200c\u06af\u0630\u0627\u0631\u06cc (Fouling):<\/strong> \u062a\u062c\u0645\u0639 \u0631\u0633\u0648\u0628\u0627\u062a (\u0645\u0627\u0646\u0646\u062f \u062c\u0631\u0645\u060c \u06af\u0644\u200c\u0648\u0644\u0627\u06cc \u06cc\u0627 \u0645\u0648\u0627\u062f \u0622\u0644\u06cc) \u0628\u0631 \u0631\u0648\u06cc \u0633\u0637\u0648\u062d \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a\u060c \u0645\u0642\u0627\u0648\u0645\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0627\u0636\u0627\u0641\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0631\u062f\u0647 \u0648 \u0636\u0631\u06cc\u0628 \u06a9\u0644\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0631\u0627 \u0628\u0647 \u0634\u062f\u062a \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f. \u0627\u06cc\u0646 \u067e\u062f\u06cc\u062f\u0647 \u062f\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc\u060c \u0628\u0647 \u0648\u06cc\u0698\u0647 \u062f\u0631 \u0645\u0628\u062f\u0644\u200c\u0647\u0627\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc\u060c \u0627\u0632 \u0627\u0647\u0645\u06cc\u062a \u0632\u06cc\u0627\u062f\u06cc \u0628\u0631\u062e\u0648\u0631\u062f\u0627\u0631 \u0627\u0633\u062a.<\/li>\n\n\n\n<li><strong>\u0636\u062e\u0627\u0645\u062a \u062f\u06cc\u0648\u0627\u0631\u0647:<\/strong> \u0647\u0631\u0686\u0647 \u0636\u062e\u0627\u0645\u062a \u062f\u06cc\u0648\u0627\u0631\u0647 \u0633\u0627\u062e\u062a\u0647 \u0634\u062f\u0647 \u0627\u0632 \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0628\u06cc\u0634\u062a\u0631 \u0628\u0627\u0634\u062f\u060c \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a \u0627\u0641\u0632\u0627\u06cc\u0634 \u06cc\u0627\u0641\u062a\u0647 \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647\u060c \u0636\u0631\u06cc\u0628 \u06a9\u0644\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u0641\u0631\u0645\u0648\u0644\u200c\u0647\u0627\u06cc \u0627\u0633\u0627\u0633\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u062f\u0631 \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0627 \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0648 \u062f\u0631\u06a9 \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a\u060c \u0627\u0632 \u0641\u0631\u0645\u0648\u0644\u200c\u0647\u0627\u06cc \u0627\u0633\u0627\u0633\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0642\u0627\u0646\u0648\u0646 \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a \u0641\u0648\u0631\u06cc\u0647 (Fourier&#8217;s Law of Heat Conduction):<\/strong> \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0647\u062f\u0627\u06cc\u062a \u062f\u0631 \u06cc\u06a9 \u0645\u0627\u062f\u0647 \u0631\u0627 \u062a\u0648\u0635\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f: Q=\u2212k\u22c5A\u22c5dxdT\u200b \u06a9\u0647 \u062f\u0631 \u0622\u0646:\n<ul class=\"wp-block-list\">\n<li>Q = \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a (\u0648\u0627\u062a \u06cc\u0627 BTU\/hr)<\/li>\n\n\n\n<li>k = \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0645\u0627\u062f\u0647 (W\/m\u00b7K \u06cc\u0627 BTU\/(hr\u00b7ft\u00b7\u00b0F))<\/li>\n\n\n\n<li>A = \u0645\u0633\u0627\u062d\u062a \u0633\u0637\u062d \u0645\u0642\u0637\u0639 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a (m\u00b2 \u06cc\u0627 ft\u00b2)<\/li>\n\n\n\n<li>dxdT\u200b = \u06af\u0631\u0627\u062f\u06cc\u0627\u0646 \u062f\u0645\u0627 \u062f\u0631 \u062c\u0647\u062a \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a (\u00b0C\/m \u06cc\u0627 \u00b0F\/ft)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u0642\u0627\u0646\u0648\u0646 \u062e\u0646\u06a9\u200c\u06a9\u0627\u0631\u06cc \u0646\u06cc\u0648\u062a\u0646 (Newton&#8217;s Law of Cooling) \u0628\u0631\u0627\u06cc \u0647\u0645\u0631\u0641\u062a:<\/strong> \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0647\u0645\u0631\u0641\u062a\u06cc \u0631\u0627 \u0628\u06cc\u0627\u0646 \u0645\u06cc\u200c\u06a9\u0646\u062f: Q=h\u22c5A\u22c5(Ts\u200b\u2212T\u221e\u200b) \u06a9\u0647 \u062f\u0631 \u0622\u0646:\n<ul class=\"wp-block-list\">\n<li>Q = \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a (\u0648\u0627\u062a \u06cc\u0627 BTU\/hr)<\/li>\n\n\n\n<li>h = \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0647\u0645\u0631\u0641\u062a\u06cc (W\/m\u00b2\u00b7K \u06cc\u0627 BTU\/(hr\u00b7ft\u00b2\u00b7\u00b0F))<\/li>\n\n\n\n<li>A = \u0645\u0633\u0627\u062d\u062a \u0633\u0637\u062d \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a (m\u00b2 \u06cc\u0627 ft\u00b2)<\/li>\n\n\n\n<li>Ts\u200b = \u062f\u0645\u0627\u06cc \u0633\u0637\u062d (\u00b0C \u06cc\u0627 \u00b0F)<\/li>\n\n\n\n<li>T\u221e\u200b = \u062f\u0645\u0627\u06cc \u0633\u06cc\u0627\u0644 \u062f\u0648\u0631 \u0627\u0632 \u0633\u0637\u062d (\u00b0C \u06cc\u0627 \u00b0F)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u06a9\u0644\u06cc (Overall Heat Transfer Coefficient &#8211; U):<\/strong> \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0645\u0633\u0637\u062d\u060c \u0636\u0631\u06cc\u0628 \u06a9\u0644\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0628\u0627 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0647\u0645\u0631\u0641\u062a \u062f\u0631 \u062f\u0648 \u0637\u0631\u0641 \u0648 \u0647\u062f\u0627\u06cc\u062a \u062f\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f: U1\u200b=hi\u200b\u06f1\u200b+kx\u200b+ho\u200b\u06f1\u200b \u06a9\u0647 \u062f\u0631 \u0622\u0646:\n<ul class=\"wp-block-list\">\n<li>U = \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u06a9\u0644\u06cc<\/li>\n\n\n\n<li>hi\u200b = \u0636\u0631\u06cc\u0628 \u0647\u0645\u0631\u0641\u062a\u06cc \u062f\u0631 \u0633\u0645\u062a \u062f\u0627\u062e\u0644\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647<\/li>\n\n\n\n<li>x = \u0636\u062e\u0627\u0645\u062a \u062f\u06cc\u0648\u0627\u0631\u0647<\/li>\n\n\n\n<li>k = \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0645\u0627\u062f\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 (\u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4)<\/li>\n\n\n\n<li>ho\u200b = \u0636\u0631\u06cc\u0628 \u0647\u0645\u0631\u0641\u062a\u06cc \u062f\u0631 \u0633\u0645\u062a \u062e\u0627\u0631\u062c\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u062f\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u060c \u0646\u0631\u062e \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u06a9\u0644\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Q=U\u22c5A\u22c5\u0394Toverall\u200b \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u062a\u0628\u0627\u062f\u0644 \u062d\u0631\u0627\u0631\u062a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0627 \u0648\u062c\u0648\u062f \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0645\u062a\u0648\u0633\u0637\u060c \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0645\u0642\u0627\u0648\u0645\u062a \u0639\u0627\u0644\u06cc \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062e\u0648\u0631\u062f\u06af\u06cc \u0648 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u062a\u062d\u0645\u0644 \u062f\u0645\u0627\u0647\u0627\u06cc \u0628\u0627\u0644\u0627\u060c \u0628\u0647 \u0627\u0646\u062a\u062e\u0627\u0628\u06cc \u0627\u06cc\u062f\u0647\u200c\u0622\u0644 \u0628\u0631\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0646\u06cc\u0627\u0632\u0645\u0646\u062f \u062a\u0628\u0627\u062f\u0644 \u062d\u0631\u0627\u0631\u062a \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0628\u0631\u062e\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627 \u0634\u0627\u0645\u0644 \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0645\u0628\u062f\u0644\u200c\u0647\u0627\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc:<\/strong> \u062f\u0631 \u0635\u0646\u0627\u06cc\u0639 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc\u060c \u067e\u062a\u0631\u0648\u0634\u06cc\u0645\u06cc \u0648 \u0635\u0646\u0627\u06cc\u0639 \u063a\u0630\u0627\u06cc\u06cc\u060c \u0645\u0628\u062f\u0644\u200c\u0647\u0627\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc \u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u06af\u0631\u0645\u0627 \u0628\u06cc\u0646 \u062f\u0648 \u0633\u06cc\u0627\u0644 \u0628\u0647 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u0631\u0648\u0646\u062f. \u0644\u0648\u0644\u0647\u200c\u0647\u0627 \u0648 \u0635\u0641\u062d\u0627\u062a \u0633\u0627\u062e\u062a\u0647 \u0634\u062f\u0647 \u0627\u0632 \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0645\u0642\u0627\u0648\u0645\u062a \u0645\u0637\u0644\u0648\u0628\u06cc \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0633\u06cc\u0627\u0644\u0627\u062a \u062e\u0648\u0631\u0646\u062f\u0647 \u0627\u0632 \u062e\u0648\u062f \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u062f\u06cc\u06af\u200c\u0647\u0627\u06cc \u0628\u062e\u0627\u0631 \u0648 \u0645\u062e\u0627\u0632\u0646 \u062a\u062d\u062a \u0641\u0634\u0627\u0631:<\/strong> \u062f\u0631 \u0627\u06cc\u0646 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a\u060c \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a\u062d\u06a9\u0627\u0645 \u062f\u0631 \u062f\u0645\u0627\u0647\u0627\u06cc \u0628\u0627\u0644\u0627 \u0648 \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc \u0622\u0628\u06cc\u060c \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f.<\/li>\n\n\n\n<li><strong>\u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0641\u0631\u0622\u0648\u0631\u06cc \u0645\u0648\u0627\u062f \u063a\u0630\u0627\u06cc\u06cc \u0648 \u062f\u0627\u0631\u0648\u06cc\u06cc:<\/strong> \u0627\u0632 \u062c\u0645\u0644\u0647 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0622\u0634\u067e\u0632\u062e\u0627\u0646\u0647 \u0635\u0646\u0639\u062a\u06cc\u060c \u0633\u06cc\u0646\u06a9\u200c\u0647\u0627 \u0648 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u067e\u062e\u062a \u0648 \u067e\u0632\u060c \u06a9\u0647 \u062f\u0631 \u0645\u0639\u0631\u0636 \u0622\u0628\u060c \u0645\u0648\u0627\u062f \u063a\u0630\u0627\u06cc\u06cc \u0648 \u062f\u0645\u0627 \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u062e\u0646\u06a9\u200c\u06a9\u0646\u0646\u062f\u0647 \u0648 \u06af\u0631\u0645\u200c\u06a9\u0646\u0646\u062f\u0647:<\/strong> \u062f\u0631 \u0628\u062e\u0634\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062e\u0648\u0631\u062f\u06af\u06cc \u0648 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u0646\u062a\u06cc\u062c\u0647\u200c\u06af\u06cc\u0631\u06cc<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4<\/strong> \u06cc\u06a9 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u062b\u0627\u0628\u062a \u0646\u06cc\u0633\u062a \u0648 \u0628\u0647 \u0639\u0648\u0627\u0645\u0644 \u0645\u062a\u0639\u062f\u062f\u06cc \u0648\u0627\u0628\u0633\u062a\u0647 \u0627\u0633\u062a. \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0647\u062f\u0627\u06cc\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0627\u06cc\u0646 \u0622\u0644\u06cc\u0627\u0698 \u062f\u0631 \u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u0634\u062e\u0635\u06cc \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u062f \u0648 \u0628\u0627 \u062f\u0645\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u06a9\u0644\u06cc \u0648 \u0647\u0645\u0631\u0641\u062a\u06cc \u0628\u0647 \u0634\u062f\u062a \u062a\u062d\u062a \u062a\u0623\u062b\u06cc\u0631 \u0634\u0631\u0627\u06cc\u0637 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc\u060c \u0646\u0648\u0639 \u0633\u06cc\u0627\u0644 \u0648 \u0647\u0646\u062f\u0633\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u0646\u062f. \u062f\u0631\u06a9 \u0627\u06cc\u0646 \u0645\u0641\u0627\u0647\u06cc\u0645 \u0648 \u0639\u0648\u0627\u0645\u0644 \u0645\u0624\u062b\u0631\u060c \u0628\u0631\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0648 \u06a9\u0627\u0631\u0622\u0645\u062f \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc \u06a9\u0647 \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u062f\u0631 \u0622\u0646\u200c\u0647\u0627 \u0628\u0647 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u0631\u0648\u062f\u060c \u062d\u06cc\u0627\u062a\u06cc \u0627\u0633\u062a. \u0627\u0646\u062a\u062e\u0627\u0628 \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u060c \u062a\u0648\u0627\u0632\u0646\u06cc \u0645\u0637\u0644\u0648\u0628 \u0628\u06cc\u0646 \u0645\u0642\u0627\u0648\u0645\u062a \u0628\u0647 \u062e\u0648\u0631\u062f\u06af\u06cc\u060c \u062e\u0648\u0627\u0635 \u0645\u06a9\u0627\u0646\u06cc\u06a9\u06cc \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f \u062d\u0631\u0627\u0631\u062a\u06cc \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u06cc\u06a9 \u0645\u0627\u062f\u0647 \u0627\u0631\u0632\u0634\u0645\u0646\u062f \u062f\u0631 \u0645\u0647\u0646\u062f\u0633\u06cc \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9\u06cc \u0627\u0632 \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u0628\u0631\u062c\u0633\u062a\u0647 \u0641\u0648\u0644\u0627\u062f \u0632\u0646\u06af\u200c\u0646\u0632\u0646 \u0622\u0633\u062a\u0646\u06cc\u062a\u06cc\u060c \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0645\u06a9\u0627\u0646\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0645\u0637\u0644\u0648\u0628\u060c \u06a9\u0627\u0631\u0628\u0631\u062f \u06af\u0633\u062a\u0631\u062f\u0647\u200c\u0627\u06cc \u062f\u0631 \u0635\u0646\u0627\u06cc\u0639 \u0645\u062e\u062a\u0644\u0641 \u0627\u0632 \u062c\u0645\u0644\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc\u060c \u0635\u0646\u0627\u06cc\u0639 \u063a\u0630\u0627\u06cc\u06cc\u060c \u062f\u0627\u0631\u0648\u0633\u0627\u0632\u06cc \u0648 \u0633\u0627\u062e\u062a\u200c\u0648\u0633\u0627\u0632 \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u0648 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062a\u0628\u0627\u062f\u0644 \u062d\u0631\u0627\u0631\u062a \u062f\u0631 \u0622\u0646\u200c\u0647\u0627 \u0646\u0642\u0634 \u062d\u06cc\u0627\u062a\u06cc \u062f\u0627\u0631\u062f\u060c \u062f\u0631\u06a9 \u062f\u0642\u06cc\u0642 \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1928,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[9,14],"tags":[],"class_list":["post-1925","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-selection-and-maintenance-guide"],"jetpack_featured_media_url":"https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2.png","uagb_featured_image_src":{"full":["https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2.png",748,578,false],"thumbnail":["https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2-150x150.png",150,150,true],"medium":["https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2-300x232.png",300,232,true],"medium_large":["https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2.png",748,578,false],"large":["https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2.png",748,578,false],"1536x1536":["https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2.png",748,578,false],"2048x2048":["https:\/\/tajhizkaranrayka.com\/blog\/wp-content\/uploads\/2025\/05\/Heat-transfer-coefficient-of-304-steel-2.png",748,578,false]},"uagb_author_info":{"display_name":"\u062a\u062c\u0647\u06cc\u0632\u06a9\u0627\u0631\u0627\u0646 \u0631\u0627\u06cc\u06a9\u0627","author_link":"https:\/\/tajhizkaranrayka.com\/blog\/author\/admin_blog_tajhiz\/"},"uagb_comment_info":0,"uagb_excerpt":"\u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9\u06cc \u0627\u0632 \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u0628\u0631\u062c\u0633\u062a\u0647 \u0641\u0648\u0644\u0627\u062f \u0632\u0646\u06af\u200c\u0646\u0632\u0646 \u0622\u0633\u062a\u0646\u06cc\u062a\u06cc\u060c \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0645\u06a9\u0627\u0646\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0645\u0637\u0644\u0648\u0628\u060c \u06a9\u0627\u0631\u0628\u0631\u062f \u06af\u0633\u062a\u0631\u062f\u0647\u200c\u0627\u06cc \u062f\u0631 \u0635\u0646\u0627\u06cc\u0639 \u0645\u062e\u062a\u0644\u0641 \u0627\u0632 \u062c\u0645\u0644\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc\u060c \u0635\u0646\u0627\u06cc\u0639 \u063a\u0630\u0627\u06cc\u06cc\u060c \u062f\u0627\u0631\u0648\u0633\u0627\u0632\u06cc \u0648 \u0633\u0627\u062e\u062a\u200c\u0648\u0633\u0627\u0632 \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u0648 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062a\u0628\u0627\u062f\u0644 \u062d\u0631\u0627\u0631\u062a \u062f\u0631 \u0622\u0646\u200c\u0647\u0627 \u0646\u0642\u0634 \u062d\u06cc\u0627\u062a\u06cc \u062f\u0627\u0631\u062f\u060c \u062f\u0631\u06a9 \u062f\u0642\u06cc\u0642 \u0636\u0631\u06cc\u0628 \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0631\u0627\u0631\u062a \u0627\u0633\u062a\u06cc\u0644 \u06f3\u06f0\u06f4&hellip;","_links":{"self":[{"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/posts\/1925","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/comments?post=1925"}],"version-history":[{"count":5,"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/posts\/1925\/revisions"}],"predecessor-version":[{"id":1963,"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/posts\/1925\/revisions\/1963"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/media\/1928"}],"wp:attachment":[{"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/media?parent=1925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/categories?post=1925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tajhizkaranrayka.com\/blog\/wp-json\/wp\/v2\/tags?post=1925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}