CONSTRUCTION AND THERMAL PERFORMANCE EVALUATION OF FLAT PLATE SOLAR COLLECTORS
Darwesh, M., Elmetwalli, A., Derbala, A., Fouda, T., Morad, M. (2010). CONSTRUCTION AND THERMAL PERFORMANCE EVALUATION OF FLAT PLATE SOLAR COLLECTORS. EKB Journal Management System, 27(4), 1922-1937. doi: 10.21608/mjae.2010.105372
M. Darwesh; A. H. Elmetwalli; A. Derbala; T. Fouda; M. Morad. "CONSTRUCTION AND THERMAL PERFORMANCE EVALUATION OF FLAT PLATE SOLAR COLLECTORS". EKB Journal Management System, 27, 4, 2010, 1922-1937. doi: 10.21608/mjae.2010.105372
Darwesh, M., Elmetwalli, A., Derbala, A., Fouda, T., Morad, M. (2010). 'CONSTRUCTION AND THERMAL PERFORMANCE EVALUATION OF FLAT PLATE SOLAR COLLECTORS', EKB Journal Management System, 27(4), pp. 1922-1937. doi: 10.21608/mjae.2010.105372
Darwesh, M., Elmetwalli, A., Derbala, A., Fouda, T., Morad, M. CONSTRUCTION AND THERMAL PERFORMANCE EVALUATION OF FLAT PLATE SOLAR COLLECTORS. EKB Journal Management System, 2010; 27(4): 1922-1937. doi: 10.21608/mjae.2010.105372

CONSTRUCTION AND THERMAL PERFORMANCE EVALUATION OF FLAT PLATE SOLAR COLLECTORS

Misr Journal of Agricultural Engineering
Article 57, Volume 27, Issue 4, October 2010, Page 1922-1937  XML PDF (515.67 K)
Document Type: Original Article
DOI: 10.21608/mjae.2010.105372
View on SCiNiTO View on SCiNiTO
Authors
M. Darwesh1; A. H. Elmetwalli1; A. Derbala2; T. Fouda3; M. Morad4
1Lecturer, Agric. Eng. Dept., Fac. of Agric., Tanta Univ., Egypt
2Assoc. Prof. Eng. Dept., Fac. of Agric., Tanta Univ., Egypt
3Prof., Agric. Eng. Dept., Fac. of Agric., Tanta Univ., Egypt
4Prof., Agric. Eng. Dept., Fac. of Agric., Zagzig Univ., Egypt
Abstract
A solar energy systems (two solar water heaters and a storage tank) were constructed to deremine their actual thermal performance under average weather conditions. The system consisted of five components; collector box, absorber plate, copper pipes, insulation material, and glass cover).   The thermal test of performance for the two areas of solar collectors (2 and 2.994m2) with three flow rates of water (2, 7.5 and 12 l/min) were computed. The thermal performance of the solar collectors was evaluated in terms of the useful heat energy gain or the collector efficiency.
The main results of this research work can be summarized as follows:
The daily average absorbed solar radiation during these experiments were 14.31, 14.22 and 13.93 kWh/day at with the use 2.994 m2 of solar collector area under water flow rates (2, 7.5 and 12 l/min), while they were 10.19, 9.77 and 9.31 kWh/day with the use of 2 m2 of solar collector area under 2, 7.5 and 12 l/min water flow rates. The daily average absorbed solar radiation converted into useful heat gain during the experimental work were 11.08, 11.26 and 9.49 under (2, 7.5 and 12 l/min water flow rates, respectively) under the use of 2.994 m2 of solar collector area. While they were 8.30, 7.41 and 6.88 kWh/day under 2, 7.5 and 12 l/min water flow rates with the use of 2m2 of solar collector area.The daily average overall thermal efficiency during these experiments were  62 and 64 % with the use of 2.994 and 2m2 of solar collector areas , respectively. Consequently 38% and 36% of the total solar energy available were lost.
References
Abdellatif, S. M.; A. M. Matouk and R. E. Matouk (2006a). Effect of mass flow rate of operating fluid on solar panel thermal performance. J. Agric. Sci. Mansoura University, 31(7) : 479-496.

Abdellatif, S. M.; A. M. Matouk and R. E. Matouk (2006b). Effect of orientation, tilt angles and water inlet temperature on solar panel thermal performance. J. Agric. Sci., Mansoura University,  31(7):  497-510.

Abdellatif, S. M (1985). Solar energy collection, storage and utilization in protected cropping. Ph.D Thesis, Wye College, University of London, UK.

Abdellatif, S. M.; A. Kassem and N. Elashmouy (2009). Optimum tilt angle and orientation for a flat plate solar water heater under Egyptian conditions. Journal of Agricultural Machinery Science. 4(3): 253-258 

Awady, M.N. and Attar, M.Z. (2005). An electronic solar tracking system, Egyptian Patent # 023899, www.egypo.gov.eg/, accessed on June 2nd . 2010.

Duffie, J. A.; and W. A.  Beckman (1980). Solar engineering of thermal processes. Second Edition, JOHN  WIELY AND SONS, New York,  pp.762.  

Kalogirou, S. (2004). Solar thermal collectors and applications. Progress in Energy and Combustion Science, 30( 3 ):  231-295.

Leutz, R.; T.  Ackermann.; A. Akisawa and T. Kashiwagi, (2001). Solar radiation for sorption cooling in Australiasia. Renewable Energy,  22 (1-3): 395-402.

N.R.E.A. and U. S. A. I. D (1991). Egyptian solar radiation atlas. New and Renewable Energy Authority.

Kassem, A.; S. Abdullatif ; A. Kehta and A. Basuoni (2006). Thermal solar energy systems. Dar El Eman for printing.977-5030-79-x

Nuntaphan, A.; C. Chansena and T. Kiatsiriroat (2009). Performance analysis of solar water heater combined with heat pump using refrigerant mixture. Applied Energy, 86: 748-756.

Statistics
Article View: 128
PDF Download: 216