Experimental Investigation of Thermal Performance of a Single and Double Pass Solar Air Heater with Arc Like Structures as the Absorber Plate

2017 ◽  
Vol 14 (7) ◽  
pp. 3410-3415
Author(s):  
S. G. Sam Stanley ◽  
K. Kalidasa Murugavel
Keyword(s):  
Experimental Investigation ◽  
Thermal Performance ◽  
Solar Air Heater ◽  
Absorber Plate ◽  
Double Pass ◽  
Air Heater

scholarly journals An experimental investigation of performance of a double pass solar air heater with thermal storage medium

2015 ◽  
Vol 19 (5) ◽  
pp. 1699-1708 ◽  
Author(s):  
Hafiz Ali ◽  
Arslan Bhatti ◽  
Muzaffar Ali
Keyword(s):  
Experimental Investigation ◽  
Thermal Storage ◽  
Paraffin Wax ◽  
Maximum Efficiency ◽  
Solar Air Heater ◽  
Storage Medium ◽  
Absorber Plate ◽  
Double Pass ◽  
Air Heater ◽  
Useful Heat

The performance of a double pass solar air heater was experimentally investigated using four different configurations. First configuration contained only absorber plate whereas copper tubes filled with thermal storage medium (paraffin wax) were added on the absorber plate in the second configuration. Aluminum and steel rods as thermal enhancer were inserted in the middle of paraffin wax of each tube for configurations three and four respectively. Second configuration provided useful heat for about 1.5 hours after the sunset compared to first configuration. Configurations three and four provided useful heat for about 2 hours after the sunset. The maximum efficiency of about 96% was achieved using configuration three (i.e. using Aluminum rods in the middle of copper tubes filled with paraffin wax).

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.

Experimental investigation of a solar air heater with copper wool on the absorber plate

2020 ◽  
Vol 17 (15) ◽  
pp. 979-989
Author(s):  
Ayşe Biçer ◽  
Atilla G Devecioğlu ◽  
Vedat Oruç ◽  
Zafer Tuncer
Keyword(s):  
Experimental Investigation ◽  
Solar Air Heater ◽  
Absorber Plate ◽  
Air Heater
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