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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February 2016
Research-Article
Thermal Performance Analysis of a Rectangular Longitudinal Finned Solar Air Heater With Semicircular Absorber Plate
Satyender Singh,
Satyender Singh
Department of Mechanical Engineering,
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: satyender.nith@gmail.com
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: satyender.nith@gmail.com
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Prashant Dhiman
Prashant Dhiman
Department of Mechanical Engineering,
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: prashant_rec@yahoo.co.in
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: prashant_rec@yahoo.co.in
Search for other works by this author on:
Satyender Singh
Department of Mechanical Engineering,
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: satyender.nith@gmail.com
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: satyender.nith@gmail.com
Prashant Dhiman
Department of Mechanical Engineering,
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: prashant_rec@yahoo.co.in
National Institute of Technology,
Hamirpur 177005,
Himachal Pradesh, India
e-mail: prashant_rec@yahoo.co.in
1Corresponding author.
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received March 13, 2015; final manuscript received November 5, 2015; published online December 8, 2015. Assoc. Editor: Werner Platzer.
J. Sol. Energy Eng. Feb 2016, 138(1): 011006 (9 pages)
Published Online: December 8, 2015
Article history
Received:
March 13, 2015
Revised:
November 5, 2015
Citation
Singh, S., and Dhiman, P. (December 8, 2015). "Thermal Performance Analysis of a Rectangular Longitudinal Finned Solar Air Heater With Semicircular Absorber Plate." ASME. J. Sol. Energy Eng. February 2016; 138(1): 011006. https://doi.org/10.1115/1.4032010
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