Thermal and thermodynamic benchmarking of liquid heat transfer fluids in a high concentration ratio parabolic trough solar collector system

2020 ◽  
Vol 319 ◽  
pp. 114151 ◽  
Author(s):  
Aggrey Mwesigye ◽  
İbrahim Halil Yılmaz
Keyword(s):  
Heat Transfer ◽  
Solar Collector ◽  
Concentration Ratio ◽  
Parabolic Trough ◽  
High Concentration ◽  
Heat Transfer Fluids ◽  
Collector System ◽  
Liquid Heat ◽  
Parabolic Trough Solar Collector

Heat Transfer Enhancement Analysis of Tube Receiver for Parabolic Trough Solar Collector With Central Corrugated Insert

2020 ◽  
Vol 142 (6) ◽  
Author(s):  
Amina Benabderrahmane ◽  
Abdelylah Benazza ◽  
Ahmed Kadhim Hussein
Keyword(s):  
Heat Transfer ◽  
Solar Collector ◽  
Heat Transfer Performance ◽  
Flow Characteristics ◽  
Numerical Results ◽  
Transfer Performance ◽  
Parabolic Trough ◽  
Collector System ◽  
Volume Method ◽  
Parabolic Trough Solar Collector

Abstract Tube receiver with central corrugated insert was introduced as the absorber tube of parabolic trough receiver to increase the overall heat transfer performance of the tube receiver for parabolic trough solar collector (PTC) system. The Monte Carlo ray tracing method (MCRT) coupled with finite volume method (FVM) was adopted to investigate flow characteristics and the heat transfer performance of tube receiver for parabolic trough solar collector system. The numerical results were successfully validated with the empirical correlations existing in the literature. The numerical results indicated that the introduction of the corrugated insert inside the absorber tube of the parabolic trough receiver can effectively enhance the heat transfer performance, where the average Nusselt number can be increased up to 3.7 times compared to the smooth absorber. While the overall heat transfer performance factor can be found to be in the range of 1.3–2.6. The results indicate that the heat transfer increases with increasing corrugated insert twist ratio and increases also with decreasing pitch between two corrugations.

Sign in / Sign up

Export Citation Format

Share Document