The effects of collector roughness shape on the performance of solar chimney power plant were investigated in this study. The roughness shapes of triangular, curved, and square grooves were chosen and were compared to smooth case. The performance parameters of solar radiation, updraft velocity, temperature distribution, static pressure, power, and Nusselt number were varied. The effects of number, position, height, and width of the grooves on the performance were investigated. The results of this investigation show that the updraft velocity with the triangular groove increases by 1.5 times compared to the smooth case at solar radiation of 1000 W/m2. At solar radiation of 1000 W/m2, the power increases by 169%, 96%, and 19% for triangular, curved, and square grooves, respectively, compared to the smooth case. Moreover, the Nusselt number values with triangular groove and curved groove enhance by 42% and 26%, respectively, compared to the smooth case. The power increases by 1.98% for three grooves instead of using one groove at higher solar radiation. Increasing the groove height by 1.7 times, the power increases by 1.03 times at higher solar radiation. The power enhancement shows less sensitivity to the change of groove width at higher solar radiation.
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June 2019
Research-Article
Effects of Novel Collector Roof on Solar Chimney Power Plant Performance Available to Purchase
Antar M. M. Abdala,
Antar M. M. Abdala
Faculty of Engineering,
Matareya branch,
Helwan University,
Cairo 11718, Egypt
e-mail: [email protected]
Matareya branch,
Helwan University,
Cairo 11718, Egypt
e-mail: [email protected]
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Muhammad Mustafizur Rahman
Muhammad Mustafizur Rahman
Department of Mechanical Engineering,
Wichita State University,
Wichita, KS 67260-0133
e-mail: [email protected]
Wichita State University,
Wichita, KS 67260-0133
e-mail: [email protected]
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Fifi N. M. Elwekeel
Antar M. M. Abdala
Faculty of Engineering,
Matareya branch,
Helwan University,
Cairo 11718, Egypt
e-mail: [email protected]
Matareya branch,
Helwan University,
Cairo 11718, Egypt
e-mail: [email protected]
Muhammad Mustafizur Rahman
Department of Mechanical Engineering,
Wichita State University,
Wichita, KS 67260-0133
e-mail: [email protected]
Wichita State University,
Wichita, KS 67260-0133
e-mail: [email protected]
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 February 15, 2018; final manuscript received August 28, 2018; published online October 1, 2018. Assoc. Editor: Aranzazu Fernandez Garcia.
J. Sol. Energy Eng. Jun 2019, 141(3): 031004 (16 pages)
Published Online: October 1, 2018
Article history
Received:
February 15, 2018
Revised:
August 28, 2018
Citation
Elwekeel, F. N. M., Abdala, A. M. M., and Rahman, M. M. (October 1, 2018). "Effects of Novel Collector Roof on Solar Chimney Power Plant Performance." ASME. J. Sol. Energy Eng. June 2019; 141(3): 031004. https://doi.org/10.1115/1.4041403
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