Application of computational fluid dynamics to solar thermal receiver/reactor modelling

1999 ◽  
Vol 09 (PR3) ◽  
pp. Pr3-147-Pr3-152 ◽  
Author(s):  
H. Schmidt-Traub ◽  
T. Hahm
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Solar Thermal ◽  
Thermal Receiver

CFD Analysis of a Solar Parabolic Dish

2015 ◽  
Vol 787 ◽  
pp. 280-284
Author(s):  
C. Uma Maheswari ◽  
R. Meenakshi Reddy
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Large Scale ◽  
Energy Markets ◽  
Solar Thermal ◽  
Cfd Analysis ◽  
Aluminium Copper ◽  
Parabolic Dish ◽  
Wind Velocities ◽  
Computational Fluid Dynamics Cfd

Concentrated solar thermal (CST) power has been used for years to help supply power to certain energy markets and has proven to be fairly successful. Unfortunately the high prices of these solar technologies have prohibited them from really making a large impact on the world's energy scene. This study analyses the structural, thermal, and CFD performance of a parabolic dish concept which could be the basis for large scale commercial concentrated solar thermal electricity. Simulation of the structural, thermal and CFDanalysis of the dish with varying metallic properties (Aluminium, Copper and StainlessSteel) under different windconditionswas compared. Computational Fluid Dynamics (CFD) was done to simulate the thermal performance of the dish at two different wind velocities.

scholarly journals Computational Fluid Dynamics Simulation and Experimental Study of Key Design Parameters of Solar Thermal Collectors

2017 ◽  
Vol 139 (5) ◽  
Author(s):  
James Allan ◽  
Zahir Dehouche ◽  
Sinisa Stankovice ◽  
Alan Harries
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Thermal Efficiency ◽  
Thermal Contact ◽  
High Surface ◽  
Heat Removal ◽  
Solar Thermal ◽  
Dynamics Simulation ◽  
Low Flow ◽  
Design Parameters

Numerical simulation enables the optimization of a solar collector without the expense of building prototypes. This study details an approach using computational fluid dynamics (CFD) to simulate the performance of a solar thermal collector. Inputs to the simulation include; heat loss coefficient, irradiance, and ambient temperature. A simulated thermal efficiency was validated using experimental results by comparing the calculated heat removal factor. The validated methodology was then applied to five different inlet configurations of a header–riser collector. The most efficient designs had uniform flow through the risers. The worst performing configurations had low flow rates in the risers that led to high surface temperatures and poor thermal efficiency. The calculated heat removal factor differed by between 4.2% for the serpentine model and 12.1% for the header–riser. The discrepancies were attributed to differences in thermal contact between plate and tubes in the simulated and actual design.

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