Thermal conductivity, surface heat transfer coefficient, and heat loss of CAESARⅡ material
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Hello, may I ask where in CAESARⅡ the material thermal conductivity, surface heat transfer coefficient, and heat loss are set? Is it still not necessary to make any settings? Will it be automatically provided once the material is selected? May I ask the experts here
As long as it is a material permitted by the standards, once the material is selected and the corresponding temperature is entered, the software will automatically provide the linear expansion coefficient of that material. The thermal conductivity, surface heat transfer coefficient, and heat loss of the materials mentioned in your text are not required in the Caesar software.
The thermal conductivity of a material is determined by the material itself and is fixed; it is calculated using the heat transfer coefficient. Both of these values are used to calculate heat loss
Hello, may I ask how the heat transfer coefficient is calculated? Where can I check it? Thank you
You should check out the \"Power Piping Design Manual\" – it’s a thick book in yellow; it contains comprehensive information, with detailed explanations on heat loss calculations. Alternatively, I recommend looking at the heat transfer section in \"Principles of Chemical Engineering\"
Okay, I need to ask someone if they have this book; I’m not sure if it’s available. Once the heat coefficient and heat loss values are calculated, do these parameters need to be entered when using Caesar for modeling calculations? Where do I enter it? Thank you
Didn’t someone upstairs answer you? It’s not necessary in the software. It can be understood simply: both heat loss and the stress calculated by the software serve as criteria for assessing the feasibility of a design. For example, consider a steam pipe that is 500 meters long, with an initial temperature of 300 degrees; the required temperature of the steam is above 290 degrees. Heat loss can be used to calculate the temperature of the steam after it has traveled 500 meters. If the heat loss is too high, then the temperature will not reach the desired 290 degrees. In other words, the pipe we designed does not meet our requirements. Therefore, it is necessary to reduce heat loss by decreasing the number of expansion bends or increasing the thickness of the insulation layer. This has dual effects, so recalculation is required. The above is my personal understanding
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