HTFS calculation
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When I use HTFS for calculations, the resulting overall heat transfer coefficient is very high, which does not correspond to the value of the condenser currently in use in the workshop. I’m not sure where the parameters can be adjusted to change this value. The area calculated by the software is just over 20 square meters, while the actual area is slightly less than 70 square meters. I’m not sure what factors affect the overall heat transfer coefficient
1. Materials 2. Mechanical structure of the condenser 3. Fouling coefficient 4. Process parameters
1. There should be no issues with the heat exchanger’s structure； 2. There will also be no significant errors in the operating process conditions ； 3. The impact of setting the dirt thermal resistance is not significant ； 4. The material of the heat exchanger should be fine ； 5. The flow rates, physical properties, and composition of the hot and cold working fluids; whether the actual composition settings are correct. In cases of mixed vapor condensation, non-azeotropic components, or the presence of non-condensable gases, significant deviations can occur easily
The setting of the dirt thermal resistance has a significant impact； It is particularly affected by factors such as factory materials or water, and the usage cycle
The thermal resistance due to dirt certainly has a significant impact. Let’s do a calculation (rating) using the existing equipment dimensions and parameters.
Could you list the process conditions and structural parameters of your current heat exchanger, so that we can do some calculations?
6louder is a good idea; looking forward to the original poster sharing examples