The Calculation of Optimized Slop of Flat Solar Collectors and Comparing of Their Application at Each Month of the Year in Kerman
Subject Areas : Renewable Energyahmad jamee 1 , Hasan Zolfagharzadeh 2 , Pooria Akbarzadeh 3
1 - Ph.D Student, Department of Architecture, Imam Khomeini International University, Qazvin Iran.*(Corresponding Author)
2 - Department of Architecture, Faculty of Architecture and Urban Development, Imam Khomeini International University, Qazvin, Iran.
3 - Department of Mechatronics Engineering, Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology, Shahrood, Iran.
Keywords: Flat Collectors, Solar Radiation, Solar Energy, Optimal Collector Angle, Renewable energy,
Abstract :
Background and Objective: Today energy crisis and inherent environmental pollution caused by increasing consumption of non-renewable resources are one of the most major concerns of many countries including Iran and using of them is one of the most important factors to Earth demolition and climatic changes. Thus, numerous developed and enlarged countries try to extend the application and use of renewable energy resources. In this regard, the solar energy is one of the most important renewable and sustainable energy sources in the world and it mainly can be enumerated as the second largest energy sources in Iran after wind energy. This energy can be exploited in several methods such as flat collectors as one of the simplest and most usable systems that can be used in the buildings and solar chimney power plant. Due to daily and seasonal variations of the sun radiation, the optimal tilt estimation of collectors with maximum efficiency is very important.Method: This paper is based on a mathematical pattern and climatic data and the optimized tilt of flat collectors in city of Kerman is investigated. Then, by comparing and analyzing results of charts and tables, optimized tilt of flat collector at each month, season and annual are extracted and contrasted. Additionally, the percent of received radiation of each angle of plates in comparison to the optimized Angele are discussed.Findings: In the conclusion section, the optimal angle tilt of collector over the year including spring, summer, autumn and winter seasons besides the optimal angle building heating systems and outdoor swimming pools heating systems are also presented. Finally, efficiency of vertical and horizontal collectors has been investigated with respect to maximizing the efficiency of optimal tilt of collector over the year.
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1. Fitzsimmons, A., Ramesh, K., 2013. Statistical Review of World Energy 2013: Viva La Shale Revolución. see information in: https://www.instituteforenergyresearch.org/fossil-fuels/coal/statistical-review-of-world-energy-2013-viva-la-shale-revolucion/
2. Bostan, I., Gheorghe, A., Dulgheru, V., Sobor, I., Bostan, V., Sochirean, A., 2013. Resilient Energy Systems Renewables: Wind, Solar, Hydro. London: Springer; 1-64.
3. Anonymous, 2014. The End of Fossil Fuels. see information in: https://www.ecotricity.co.uk/our-green-energy/energy-independence/the-end-of-fossil-fuels/
4. Larsen, J., 2014. Global Temperature: 2013. Marked the Thirty-seventh Consecutive Year of Above-Average Temperature. see information in: http://www.earth-policy.org/indicators/C51/temperature_2014
5. Anonymous, 2015. Earth's CO2 Home Page. see information in: https://www.co2.earth/earths-co2-main-page
6. Mohajeri, M., Khaksar Astaneh, S., Prioritize renewable energy Resources in Iran with respect to sustainable development, using fuzzy AHP, The 3th Conference on Environmental Planning and Management, 2013, Tehran: Iran. (In Persian).
7. Bernardes, M. A. dos S., Voß, A., Weinrebe, G., 2003. Thermal and technical analyses of solar chimneys. Solar Energy, 75(6), 511-524.
8. Raoufi Rad, M., 2007. Designing of Building Solar Systems in Iran. Tehran: Fadak Isatis; 67-68. (In Persian).
9. Duffie, J.A., Beckman, W.A., 2013. Solar Engineering of Thermal Process. 4nd ed. New York: John Wiley; 223-239.
10. Moini, S., Javadi, SH., Kokabi, M., Dehghan Monshadi, M., 2010. Estimating solar radiation for IRAN by using an optimum Model. Iranian Journal of Energy, 13 (2), 1-10. (In Persian).
11. Asante, D., 2014.The Design of Solar Chimney Power Plant for Sustainable Power Generation. Master of Science in Renewable Energy Technologies, Kwame Nkrumah University of Science and Technology, 28-36.
12. Yazdanpanah, H., Mirmojarabian, R., Barghi, H., 2010. Estimating total incoming solar radiation on the earth surface of Isfahan. Geography and Environmental Planning, 21(1), 95-104. (In Persian).
13. El-Sebaii, A.A., Al-Hazmi, F.S., Al-Ghamdi, A.A., Yaghmour, S.J., 2010.Global, direct and diffuse solar radiation on horizontal and tilted surfaces in Jeddah, Saudi Arabia. Applied Energy, 87, 568–576.