Numerical evaluation of the thermal performance of a solar air heater equipped with two different types of baffles

Heat Transfer ◽  
2020 ◽  
Vol 49 (3) ◽  
pp. 1149-1169 ◽  
Author(s):  
Hassan Olfian ◽  
Amirhossein Zabihi Sheshpoli ◽  
Seyed Soheil Mousavi Ajarostaghi
Keyword(s):  
Thermal Performance ◽  
Numerical Evaluation ◽  
Solar Air Heater ◽  
Air Heater ◽  
Different Types

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.

Numerical evaluation of the thermal performance of different types of double glazing flat-plate solar air collectors

Energy ◽  
2021 ◽  
pp. 121087
Author(s):  
C.Q. Chen ◽  
Y.H. Diao ◽  
Y.H. Zhao ◽  
Z.Y. Wang ◽  
T.T. Zhu ◽  
...  
Keyword(s):  
Flat Plate ◽  
Thermal Performance ◽  
Numerical Evaluation ◽  
Different Types

Influence on thermal performance of spiral solar air heater with longitudinal baffles

Solar Energy ◽  
2021 ◽  
Vol 225 ◽  
pp. 969-977
Author(s):  
Binguang Jia ◽  
Fang Liu ◽  
Xiao Li ◽  
Andi Qu ◽  
Qingfeng Cai
Keyword(s):  
Thermal Performance ◽  
Solar Air Heater ◽  
Air Heater
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