Maximum heat transfer rate can be expected in case of_________?
Correct answer: D. Turbulent flow
- A. Laminar flow
- B. Co-current flow
- C. Heat flow rate is independent of nature of flow
- D. Turbulent flow
Explanation
Turbulent flow enhances mixing and reduces the thermal boundary-layer resistance, giving a higher convective heat-transfer coefficient than laminar flow under comparable conditions. Thus the maximum rate among these choices is expected with turbulent flow.
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