2 ( 15 ) 1 20 99 (k 0 035 W mK) 22 1

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2 ( = 15 /) 1 20 . 99 .

سمكهما كبير 2 سم (ك = 15 وات/م·ك) يفصل بينهما أسلاك جديدة سمكها 1 سم إلكترونيها 20 سم. 99 سم عن بعضها البعض. يتم ملء المساحة المتبقية بين المؤسسة بعزل الألياف الزجاجية (k = 0.035 W/m·K). إذا كان فرق درجة الحرارة بين السطحين الداخلي للجدران 22 درجة مئوية، فأحسب معدل انتقال الحرارة عبر الجدار. هل تختلف بعض العناصر غير المقاومة للصدأ بين المؤسسة في التحليل الحراري البيئي لشغل 1 فقط من أجل تقليل سطح نقل الحرارة؟

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