A CFD-based thermal analysis of solar air heater duct artificially roughened with ‘S’ shape ribs on absorber plate

2021 ◽  
Author(s):  
Sachin Kumar Bauri ◽  
A. K. Prasad
Keyword(s):  
Thermal Analysis ◽  
Solar Air Heater ◽  
Absorber Plate ◽  
Air Heater

Thermal Performance Analysis of a Rectangular Longitudinal Finned Solar Air Heater With Semicircular Absorber Plate

2015 ◽  
Vol 138 (1) ◽  
Author(s):  
Satyender Singh ◽  
Prashant Dhiman
Keyword(s):  
Thermal Performance ◽  
Numerical Solutions ◽  
Solar Air Heater ◽  
Duct Flow ◽  
Balance Equations ◽  
Absorber Plate ◽  
Ansys Fluent ◽  
Air Heater ◽  
Glass Cover ◽  
Good Agreement

Thermal performance of a single-pass single-glass cover solar air heater consisting of semicircular absorber plate finned with rectangular longitudinal fins is investigated. The analysis is carried out for different hydraulic diameters, which were obtained by varying the diameter of the duct from 0.3–0.5 m. One to five numbers of fins are considered. Reynolds number ranges from 1600–4300. Analytical solutions for energy balance equations of different elements and duct flow of the solar air heater are presented; results are compared with finite-volume methodology based numerical solutions obtained from ansys fluent commercial software, and a fairly good agreement is achieved. Moreover, analysis is extended to check the effect of double-glass cover and the recycle of the exiting air. Results revealed that the use of double-glass cover and recycle operation improves the thermal performance of solar air heater.

Thermal analysis of solar air heater by using pebbles as an absorber material

2021 ◽  
Author(s):  
Mayank Srivastava ◽  
G. Phal Dessai ◽  
Divya Srivastava ◽  
Pardeep Bishnoi ◽  
Pravin Singh ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Solar Air Heater ◽  
Air Heater ◽  
Absorber Material

Numerical analysis of a solar air heater with circular perforated absorber plate

Solar Energy ◽  
2021 ◽  
Vol 215 ◽  
pp. 416-433
Author(s):  
Shreyas P. Shetty ◽  
N. Madhwesh ◽  
K. Vasudeva Karanth
Keyword(s):  
Numerical Analysis ◽  
Solar Air Heater ◽  
Absorber Plate ◽  
Air Heater
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