For a 400-mm diameter pipe in which the fluid temperature is 150 degrees, insulated with 50 mm thick rock wool and covered with 0.5 mm thick galvanized iron sheet, how should the external surface temperature be calculated...
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For a pipe with a diameter of 400, in which the temperature of the fluid flowing inside is 150 degrees, rock wool with a thickness of 50 mm is used for insulation, and an additional layer of galvanized iron sheet with a thickness of 0.5 mm is applied. How can the external surface temperature be calculated? It would be great if there were a formula for this :)
What is the ambient temperature? For cylindrical heat transfer, consider the convective heat transfer coefficient at the surface, as well as the thermal conductivity of the insulation material and of the pipe itself. The formulas for these can be found in heat transfer theory. If it’s related to pipeline design, refer to relevant pipeline design manuals; they usually contain sections on insulation along with the necessary formulas