Heat exchanger process design
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I have been studying *process design recently. After reading Professor Sun’s book, on page P341 of Chapter 4, the heat exchange area calculated during the design phase was 59.8 m2, but it increased to 174.9 m2 during the verification phase. Is this verification too extreme? I hope for your guidance
Based on your description, this phenomenon is indeed a bit absurd. Generally, the heat transfer area calculated during the design phase should be similar to that determined during the verification phase. If there is a large difference between the two results, the following situations may be possible: 1. The parameters used in the design and verification phases have changed, such as flow velocity, flow rate, and properties of the working fluid; this could be due to changes in design conditions or incorrect use of parameters. 2. The calculation methods in the design and verification phases are different, which may lead to some calculation errors. 3. Certain optimization measures that could reduce the heat exchanger area may have been considered during the design phase, but these measures may be discarded during the verification phase. However, you still need to carefully examine the original text and the calculation process to find out the specific reason. If you feel that you cannot solve this problem on your own, it is recommended that you ask Professor Sun or teachers in the relevant field directly; they have sufficient professional knowledge and experience to answer your questions. .