Analysis of Single Phase Forced Circulation Heat Transfer Characteristics in Rectangular Narrow Channel

WANG Chang; GAO Puzhen; XU Chao

Volume 33 Issue 4

Mar. 2025

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WANG Chang, GAO Puzhen, XU Chao. Analysis of Single Phase Forced Circulation Heat Transfer Characteristics in Rectangular Narrow Channel[J]. Nuclear Power Engineering, 2012, 33(4): 106-110.

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WANG Chang, GAO Puzhen, XU Chao. Analysis of Single Phase Forced Circulation Heat Transfer Characteristics in Rectangular Narrow Channel[J]. Nuclear Power Engineering, 2012, 33(4): 106-110.

WANG Chang, GAO Puzhen, XU Chao. Analysis of Single Phase Forced Circulation Heat Transfer Characteristics in Rectangular Narrow Channel[J]. Nuclear Power Engineering, 2012, 33(4): 106-110.

Citation:

WANG Chang, GAO Puzhen, XU Chao. Analysis of Single Phase Forced Circulation Heat Transfer Characteristics in Rectangular Narrow Channel[J]. Nuclear Power Engineering, 2012, 33(4): 106-110.

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Analysis of Single Phase Forced Circulation Heat Transfer Characteristics in Rectangular Narrow Channel

Key Discipline Laboratory of Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin, 150001, China

Received Date: 2011-03-22
Rev Recd Date: 2011-07-25

Available Online: 2025-03-08

Abstract

Abstract

The heat transfer characteristics in forced circulation in narrow rectangular channels under the operation condition of constant coolant average temperature have been experimentally and theoretically studied.The result shows that the heat transfer temperature difference between wall and water increases linearly with the Reynolds number in the laminar flow region,however,when the flow comes into the turbulent flow region,the heat transfer temperature difference nearly keeps constant with the increase of Reynolds number.The above phenomena were explained through the analysis of heat transfer mechanism.In addition,the larger the temperature differences between inlet and outlet,the smaller the Nusselt number.The reason that the temperature difference has effects on heat transfer characteristics is that the proportion of thermal resistance in the viscosity sub layer has been changed.
- Rectangular narrow channel,
- Forced circulation,
- Heat transfer characteristics,
- Constant coolant average temperature

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