Heat transfer performance evaluation of a large-size cavity receiver in the solar power tower plant based on angle factors

Solar Energy ◽  
2017 ◽  
Vol 148 ◽  
pp. 78-86 ◽  
Author(s):  
Qian Deng ◽  
Xinyue Xiao ◽  
Yun Hao ◽  
Qizhi Wang ◽  
Tian Hu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Performance Evaluation ◽  
Heat Transfer Performance ◽  
Solar Power ◽  
Transfer Performance ◽  
Large Size ◽  
Solar Power Tower

scholarly journals Optimization of a micro-channel structure of an elliptical louver fin

2019 ◽  
Vol 23 (4) ◽  
pp. 2429-2436
Author(s):  
Fengye Yang ◽  
Guanghui Zhou ◽  
Pengfei Zhao ◽  
Enhai Liu ◽  
Haijun Li ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Performance Evaluation ◽  
Flow Resistance ◽  
Heat Transfer Performance ◽  
Channel Structure ◽  
Transfer Performance ◽  
Micro Channel ◽  
Comprehensive Performance ◽  
D Model

The influence of the louver fin?s structure on the heat transfer performance of a parallel flow gas cooler is studied, and a 3-D model for an elliptical louver fin is simulated for analysis of the heat transfer and flow resistance characteristics of the fin. The micro-channel structure of the fin is optimized to give the best comprehensive performance evaluation by suitable choice of fin?s thickness and the space between the adjacent louvers for given range of Reynolds number.

Modified Single-Blow Technique for Performance Evaluation on Heat Transfer Surfaces

1975 ◽  
Vol 97 (1) ◽  
pp. 16-21 ◽  
Author(s):  
C. Y. Liang ◽  
Wen-Jei Yang
Keyword(s):  
Heat Transfer ◽  
Experimental Data ◽  
Performance Evaluation ◽  
Heat Exchanger ◽  
Theoretical Analysis ◽  
Heat Transfer Performance ◽  
Transfer Performance ◽  
Maximum Slope ◽  
Present Technique ◽  
Good Agreement

The existing single-blow, maximum-slope transient technique has been commonly applied for determining heat transfer performance of heat exchanger units or surfaces. However, results lack in accuracy and technical difficulties arise when it is applied to heat exchanger surfaces or units with NTU value smaller than 3.5. In the present paper, a modified single-blow technique is developed which can be applied to systems of any NTU values. Both theoretical analysis and experiments are performed. The validity of the present technique is borne out by the good agreement between experimental data and the existing theoretical solutions.

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