How to determine whether a simulated heat exchanger is practical and effective for use in reality?
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Let’s discuss this together~~ I’ve never worked on heat exchangers before; now I’m working alone, and I’m not sure whether what I design will work or not~~
I think the effectiveness of a heat exchanger design can be assessed from the following aspects: First, it is necessary to check whether the area of the heat exchanger you have designed is sufficient compared to the required area (usually with a surplus of 10–20%)； Secondly, the pressure drop should be lower than the allowable value for the process stream ； The heat transfer resistance of the third section should be distributed reasonably ； Is the distribution of the various flow streams in the fourth shell pass reasonable? (The B-streams should generally be as large as possible) ； Fifth, check whether it is prone to vibration (however, domestic designs don’t seem to pay much attention to this)
I learned it from upstairs. I think engineers can just check the flow rate and things like that to figure it out.
It is mainly based on flow rate and heat exchange efficiency! And the outlet temperature!
The main factors include heat exchange area and margin, heat transfer coefficient, flow velocity, etc
Water flow rate: 0.2–1.5; Gas flow rate: 5–30 m/s