Theoretical Study of Heat Transfer through a Sun Space Filled with a Porous Medium
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Abstract
A theoretical study had been conducted to detect the effect of using a porous medium in sunspace to reduce heating load and overcoming coldness of winter in the cold regions. In this work, the heat transferred and stored in the storage wall was investigated. The mathematical model was unsteady, heat conduction equation with nonlinear boundary conditions was solved by using finite difference method and the solution technique of heat conduction had based on the Crank Nicholson method. The results had adopted on the aspect ratio (H/L=30), Darcy number (Da=10-3), porosity (φ=0.35) and particle to fluid thermal conductivity ratio (kp/kf=38.5). The results showed that using the porous medium had enhanced the heat transferred and stored in the storage wall. For the outside storage wall temperature, an increase of 19.7% was achieved by using the porous medium instead of the air, while it was 20.3% for the inside storage wall temperature.
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References
- Garg, H. P. and Parkash, J., "Solar Energy Fundamentals and Applications", Tata McGraw-Hill Publishing Company Ltd., New Delhi, 2000.
- Sitar, M. and Krajnc, K., "Sustainable Housing Renewal", American Journal of Applied Sciences, Vol. 5, pp. 61-66, 2008. DOI: https://doi.org/10.3844/ajassp.2008.61.66
- Oliveti, G., DeSimone, M. and Ruffolo, S., "Evaluation of the Absorption Coefficient for Solar Radiation in Sun Spaces and Windowed Rooms", Solar Energy, Vol. 82, pp. 212-219, 2008. DOI: https://doi.org/10.1016/j.solener.2007.07.009
- Bataineha, K. and Fayez, N., "Thermal Performance of Building Attached Sun Space in Jordan Climate", Proceedings of The 1st International Nuclear and Renewable Energy Conference (INREC10), Amman, Jordan, pp. 21-24, March 2010. DOI: https://doi.org/10.1109/INREC.2010.5462554
- Guanghua, L., Shuwen, N., Xifeng, Z. and Yihan, L., "Preliminary Assessment on the Potential Use of Solar Energy in House Heating-A Case Study of an Elementary Classroom with Attached Sun Space in Lintan County, Gansu Province", International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, 2011. DOI: https://doi.org/10.1109/CDCIEM.2011.15
- Bataineha, K. and Fayez, N., "Analysis of Thermal Performance of Building Attached Sun Space", Energy and Buildings, Vol. 43, pp. 1863-1868, 2011. DOI: https://doi.org/10.1016/j.enbuild.2011.03.030
- Oliveti, G., Arcuri, N., DeSimone, M. and Bruno, R., "Solar Heat Gains and Operative Temperature in Attached Sun Spaces", Renewable Energy, Vol. 39, pp. 241-249, 2012. DOI: https://doi.org/10.1016/j.renene.2011.08.010
- Frank, K. F. and Kreider, J. F., "Principles of Solar Engineering", 1st Edition, McGraw-Hill, Hemisphere Publishing, 1978.
- Ali, M. H., Al-Sammarraie, A. T. A., and Hamada, K. I., "Numerical Study of Non-Darcian Natural Convection Heat Transfer in a Rectangular Enclosure Filled with Porous Medium Saturated with Viscous Fluid", Tikrit Journal of Engineering Sciences, Vol. 15, No. 2, pp. 90-111, June 2008.
- Kaviany, M., "Principles of Heat Transfer in Porous Media", Corrected 2nd Edition, Springier-Verlag, Inc., New York, 1999.
- Zrikem, Z., and Bilgen, E., "Theoretical Study of a Composite Trombe-Michel Wall Solar Collector System", Solar Energy, Vol. 39, No. 5, pp. 409-411, 1987. DOI: https://doi.org/10.1016/S0038-092X(87)80059-2
- Holman, J. P., "Heat Transfer", 6th Edition, McGraw-Hill Book Company, 1986.