Thermal Performance Evaluation of Arc Rib Having Symmetrical Wide Gaps and Staggered Elements and Additional Narrow Gap in Each Arc Segment Used in Absorber Surface of Solar Air Heater

2021 ◽  
Vol 57 (3) ◽  
pp. 192-197
Author(s):  
Sanjeev Kumar Yadav
Keyword(s):  
Performance Evaluation ◽  
Thermal Performance ◽  
Solar Air Heater ◽  
Narrow Gap ◽  
Air Heater ◽  
Absorber Surface

Design and thermal performance evaluation of a novel solar air heater

2015 ◽  
Vol 77 ◽  
pp. 501-511 ◽  
Author(s):  
Abhishek Saxena ◽  
Ghanshyam Srivastava ◽  
Vineet Tirth
Keyword(s):  
Performance Evaluation ◽  
Thermal Performance ◽  
Solar Air Heater ◽  
Air Heater

Thermal performance evaluation of a solar air heater with rotating turbulators

2021 ◽  
Vol 48 ◽  
pp. 101647
Author(s):  
Sarvapriya Singh ◽  
Santanu Mitra ◽  
Manish Kumar ◽  
Siddharth Suman
Keyword(s):  
Performance Evaluation ◽  
Thermal Performance ◽  
Solar Air Heater ◽  
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.

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