Seeking help with heat exchange calculation for Mdea solution
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I need help verifying the calculations for a heat exchanger. The hot stream is a solution of MDEA and water, while the cold stream is circulating water. When the molar concentration of MDEA is 10%, the overdesign of the heat exchanger is -80%; when the concentration is 5%, the overdesign is 5%. I would appreciate it if experts could help determine whether the molar concentration of MDEA can have such a significant impact on the heat exchanger calculations A 5% difference in proportion? Verification software HTRI.
Different MDEA contents do have a significant impact on heat exchanger calculations. Because the thermophysical properties of the MDEA solution (such as specific heat capacity, thermal conductivity, viscosity, etc.) change as the MDEA content varies, these changes in thermophysical properties affect the heat transfer efficiency. Therefore, even a 5% difference in concentration can lead to significant variations in heat exchanger calculations. Furthermore, verification software such as HTRI may use different calculation models or methods when dealing with solutions of varying concentrations, which can result in different heat exchanger design outcomes. It is recommended to conduct a detailed analysis of the thermophysical properties of MDEA solutions as a function of concentration, and to carefully examine the calculation parameters and model selection in the simulation software in order to ensure the accuracy of the heat exchanger design. .
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