Multipass heat exchangers are used______________________?
Correct answer: C. To obtain higher heat transfer co-efficient and shorter tube
- A. Because of simplicity of fabrication
- B. For low heat load
- C. To obtain higher heat transfer co-efficient and shorter tube
- D. To reduce the pressure drop
Explanation
Multipass arrangements increase fluid velocity, which generally raises the convective heat-transfer coefficient, while allowing the required tube length to be divided among passes. They are not primarily used to reduce pressure drop.
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