The pipe is fed with cold water, and the flow rate is too low. How can the flow rate be increased without affecting the heat transfer coefficient? !
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It’s possible to reduce the number of tubes, but won’t that result in a smaller heat exchange area? Is there any good solution? Thank you. . .
Increase pressure? If the flow rate remains constant, will the velocity change? !
Increasing pressure can increase flow rate? The traffic hasn’t changed. .
Increase the number of pipe stages: two pipe stages, or four, or six
Thank you, this is the normal way. .
Under the same conditions, as the flow rate increases, the heat transfer coefficient on the tube side rises, and the overall heat transfer coefficient also increases accordingly. If the goal is to increase the flow rate while keeping the overall heat transfer coefficient unchanged, then the number of tubes must be reduced. If the flow rate is increased while the heat transfer area remains unchanged, it means the number of tube passes is changed, but the overall heat transfer coefficient should increase.
EDWARDLAU is right; this is the simplest and most effective way to meet your request. Slight treatment at the end caps of the heat exchanger is sufficient.
Pressure adjustment is the simplest method of handling this