Optimization of Solar Air Heater Design

2021 ◽  
Author(s):  
Jihu Lee ◽  
Sung-Hun Son ◽  
Kibum Kim
Keyword(s):  
Solar Air Heater ◽  
Air Heater ◽  
Heater Design

Experimental study of new solar air heater design

2015 ◽  
Vol 13 (5) ◽  
pp. 521-529 ◽  
Author(s):  
Chawki Mahboub ◽  
Noureddine Moummi ◽  
Abdelhafid Brima ◽  
Abdelhafid Moummi
Keyword(s):  
Experimental Study ◽  
Solar Air Heater ◽  
Air Heater ◽  
Heater Design

scholarly journals Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7423
Author(s):  
Jihu Lee ◽  
Sung-Hun Son ◽  
Kibum Kim
Keyword(s):  
Phase Change ◽  
Internal Structure ◽  
Air Temperature ◽  
Phase Change Materials ◽  
Operating Conditions ◽  
Internal Space ◽  
Solar Air Heater ◽  
Air Heater ◽  
Solar Heater ◽  
Heater Design

Indoor heating systems currently used are highly dependent on fossil fuels; hence, it is urgent to develop a new heating system to achieve carbon zero-emission. A solar air heater is eco-friendly because it generates nearly zero greenhouse gases. In this study, a parametric study was conducted for optimizing solar air heater design applicable to indoor heating. Installing the internal structure in the solar heater changes the interior flow characteristic, resulting in the air temperature increased by about 14.2 K on average compared to the heater without the internal structure. An additional case study was carried out to optimize the ideal quantity of phase change materials (PCM) in terms of mass fraction and heat capacity for various operating conditions. An excessive amount of PCM (e.g., 66% of the storage space filled with PCM) deteriorates the performance of the air heater unless the entire PCM could be melted during the daytime. After heating, the air temperature was maintained the longest when only 33% of the internal space was filled with PCM. The solar air heater can fully replace or partly assist a conventional heater for indoor heating, and it could reduce approximately 0.6 tCO2 per year.

PERFORMANCE ANALYSIS OF DOUBLE PASS COUNTER FLOW SOLAR AIR HEATER FOR DRYING APPLICATION

2018 ◽  
Author(s):  
D.V.N. Lakshmi ◽  
Palanisamy Muthukumar ◽  
Dr.Apurba Layek ◽  
Abhimanyu Kumar Singh ◽  
Sushoban Das
Keyword(s):  
Performance Analysis ◽  
Solar Air Heater ◽  
Double Pass ◽  
Counter Flow ◽  
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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