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Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran

Year 2012, Volume: 2 Issue: 4, 665 - 673, 01.12.2012

Abstract

The aim of this paper is providing atlases to determine maximum solar energy gain and optimum slope angle of solar collectors for Iran. To achieve this purpose, first, the daily, monthly, seasonally and yearly optimum slope and azimuth angles of solar collectors are determined for 30 Iranian cities and the gain of energy is calculated in the mentioned conditions. Then, the atlas of the optimum slope angle and the contour atlas of the maximum energy gain is provided. The Geographic Information System (GIS) is used to outline the maps. These atlases are essentials tools to find the best location for constructing different solar systems. The results show that the energy gain of the collector when it is adjusted at the daily optimum slope angle is almost the same compared with the case at the monthly optimum slope angle. Therefore, the map is provided for the energy gain when the collectors are mounted at the monthly optimum slope angle. The map of optimum slope angle is outlined for the fixed collector used for the entire year due to the high use of fixed collectors. Furthermore, the results show that Iran can be divided into five zone and the areas with the same latitude and climate have almost the same optimum slope angle.

References

  • H. Heywood, “Operating experience with solar water heating”, IHVE, vol. 39, pp. 63-99, 1971.
  • P.J. Lunde, Solar thermal engineering, John Wiley and Sons Inc, New York, 1980.
  • J.A. Duffie, and W.A. Beckman, Solar engineering of thermal processes, John Wiley and Sons Inc., New York, G. QIU, and S.B. RIFFAT, “Optimum tilt angle of solar collectors and its impact on performance”, International Journal of Ambient Energy, vol. 24, pp. 13-20, 2003.
  • N. Nijegorodov, K.R.S. Devan, and P.K. Jain, “Atmospheric transmittance models and an analytical method to predict the optimum slope on an absorber plate”, Renewable Energy, vol. 4, pp. 525-530, 1997.
  • V.H. Moncos, “Optimum tilt angle and orientation for solar collectors in Assiut/Egypt”, Renewable Energy, vol. (3), pp. 291-298, 1994.
  • M. Abdulaziz, “Optimum tilt angle for solar collection systems”, International Journal of Solar Energy, vol. 14, pp. 191-202, 1994.
  • L.E. Hartley, J.A. Martinez-Lozano, M.P. Utrillas, F. Tena, and R. Pedro, “The optimization of the angle of inclination of a solar collector to maximize the incident solar radiation”, Renewable Energy, vol. 6, pp. 180-298, M.T. Oladiran, “Mean global radiation captured by inclined collectors at various surface azimuth angles in Nigeria”, Applied Energy, vol. 52 (4), pp. 317-330, 1995.
  • M. Azmi, M. Yakup, and A.Q. Malik, “Optimum tilt angle and orientation for solar collector in Brunei Darussalam”, Renewable Energy, vol. 24, pp. 223-234, A. Shariah, M.A. Al-Akhras, and I.A. Al-Omari, “Optimizing the tilt angle of solar collectors”, Renewable Energy, vol. 12, pp. 587-598, 2002.
  • R. Tang, and T. Wu, “Optimal tilt-angles for solar collectors used in China”, Applied Energy, vol. 79, pp. 248, 2004.
  • K. Ulgen, “Optimum tilt angle for solar collectors”, EnergySources, Part A: Recoveryy, Utilization and Environmental Effects, vol. 28, pp. 1171-1180, 2006.
  • H.K. Elminir, A.E. Ghitas, F. El-Hussainy, R. Hamid, M.M. Beheary, and K.M. Abdel-Moneim, “Optimum solar flat plate collector slope: Case study for Helwan, Egypt”, Energy Conversion and Management, vol. 47, pp. 624-637, 2006.
  • K.K. Gopinathan, N.B., Maliehe, and M.I. Mpholo, “Study on the intercepted insulation as a function of slope and azimuth of the surface”, Energy, vol. 32, pp. 213- , 2007.
  • H. Gunerhan, and A. Hepbasli, “Determination of the optimum tilt angle of solar collectors for building applications”, Building and Environment, vol. 42, pp. 783, 2007.
  • K. Skeiker, “Optimum tilt angle and orientation for solar collectors in Syria”, Energy Conversion and Management, vol. 50, pp. 2439-2448, 2007.
  • P. Talebizadeh, M. Abdolzadeh, and M. A. Mehrabian, “Determination of optimum slope angles of solar collectors based on new correlations”, Energy Sources, Part A, vol. 33, pp.1567-1580, 2011.
Year 2012, Volume: 2 Issue: 4, 665 - 673, 01.12.2012

Abstract

References

  • H. Heywood, “Operating experience with solar water heating”, IHVE, vol. 39, pp. 63-99, 1971.
  • P.J. Lunde, Solar thermal engineering, John Wiley and Sons Inc, New York, 1980.
  • J.A. Duffie, and W.A. Beckman, Solar engineering of thermal processes, John Wiley and Sons Inc., New York, G. QIU, and S.B. RIFFAT, “Optimum tilt angle of solar collectors and its impact on performance”, International Journal of Ambient Energy, vol. 24, pp. 13-20, 2003.
  • N. Nijegorodov, K.R.S. Devan, and P.K. Jain, “Atmospheric transmittance models and an analytical method to predict the optimum slope on an absorber plate”, Renewable Energy, vol. 4, pp. 525-530, 1997.
  • V.H. Moncos, “Optimum tilt angle and orientation for solar collectors in Assiut/Egypt”, Renewable Energy, vol. (3), pp. 291-298, 1994.
  • M. Abdulaziz, “Optimum tilt angle for solar collection systems”, International Journal of Solar Energy, vol. 14, pp. 191-202, 1994.
  • L.E. Hartley, J.A. Martinez-Lozano, M.P. Utrillas, F. Tena, and R. Pedro, “The optimization of the angle of inclination of a solar collector to maximize the incident solar radiation”, Renewable Energy, vol. 6, pp. 180-298, M.T. Oladiran, “Mean global radiation captured by inclined collectors at various surface azimuth angles in Nigeria”, Applied Energy, vol. 52 (4), pp. 317-330, 1995.
  • M. Azmi, M. Yakup, and A.Q. Malik, “Optimum tilt angle and orientation for solar collector in Brunei Darussalam”, Renewable Energy, vol. 24, pp. 223-234, A. Shariah, M.A. Al-Akhras, and I.A. Al-Omari, “Optimizing the tilt angle of solar collectors”, Renewable Energy, vol. 12, pp. 587-598, 2002.
  • R. Tang, and T. Wu, “Optimal tilt-angles for solar collectors used in China”, Applied Energy, vol. 79, pp. 248, 2004.
  • K. Ulgen, “Optimum tilt angle for solar collectors”, EnergySources, Part A: Recoveryy, Utilization and Environmental Effects, vol. 28, pp. 1171-1180, 2006.
  • H.K. Elminir, A.E. Ghitas, F. El-Hussainy, R. Hamid, M.M. Beheary, and K.M. Abdel-Moneim, “Optimum solar flat plate collector slope: Case study for Helwan, Egypt”, Energy Conversion and Management, vol. 47, pp. 624-637, 2006.
  • K.K. Gopinathan, N.B., Maliehe, and M.I. Mpholo, “Study on the intercepted insulation as a function of slope and azimuth of the surface”, Energy, vol. 32, pp. 213- , 2007.
  • H. Gunerhan, and A. Hepbasli, “Determination of the optimum tilt angle of solar collectors for building applications”, Building and Environment, vol. 42, pp. 783, 2007.
  • K. Skeiker, “Optimum tilt angle and orientation for solar collectors in Syria”, Energy Conversion and Management, vol. 50, pp. 2439-2448, 2007.
  • P. Talebizadeh, M. Abdolzadeh, and M. A. Mehrabian, “Determination of optimum slope angles of solar collectors based on new correlations”, Energy Sources, Part A, vol. 33, pp.1567-1580, 2011.
There are 15 citations in total.

Details

Primary Language English
Journal Section Articles
Authors

Seyyed Ali Keshavarz This is me

Pouyan Talebizadeh This is me

Saeed Adalati This is me

Mozaffar Ali Mehrabian This is me

Morteza Abdolzadeh This is me

Publication Date December 1, 2012
Published in Issue Year 2012 Volume: 2 Issue: 4

Cite

APA Keshavarz, S. A., Talebizadeh, P., Adalati, S., Mehrabian, M. A., et al. (2012). Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran. International Journal Of Renewable Energy Research, 2(4), 665-673.
AMA Keshavarz SA, Talebizadeh P, Adalati S, Mehrabian MA, Abdolzadeh M. Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran. International Journal Of Renewable Energy Research. December 2012;2(4):665-673.
Chicago Keshavarz, Seyyed Ali, Pouyan Talebizadeh, Saeed Adalati, Mozaffar Ali Mehrabian, and Morteza Abdolzadeh. “Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran”. International Journal Of Renewable Energy Research 2, no. 4 (December 2012): 665-73.
EndNote Keshavarz SA, Talebizadeh P, Adalati S, Mehrabian MA, Abdolzadeh M (December 1, 2012) Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran. International Journal Of Renewable Energy Research 2 4 665–673.
IEEE S. A. Keshavarz, P. Talebizadeh, S. Adalati, M. A. Mehrabian, and M. Abdolzadeh, “Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran”, International Journal Of Renewable Energy Research, vol. 2, no. 4, pp. 665–673, 2012.
ISNAD Keshavarz, Seyyed Ali et al. “Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran”. International Journal Of Renewable Energy Research 2/4 (December 2012), 665-673.
JAMA Keshavarz SA, Talebizadeh P, Adalati S, Mehrabian MA, Abdolzadeh M. Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran. International Journal Of Renewable Energy Research. 2012;2:665–673.
MLA Keshavarz, Seyyed Ali et al. “Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran”. International Journal Of Renewable Energy Research, vol. 2, no. 4, 2012, pp. 665-73.
Vancouver Keshavarz SA, Talebizadeh P, Adalati S, Mehrabian MA, Abdolzadeh M. Optimal Slope-Angles to Determine Maximum Solar Energy Gain for Solar Collectors Used in Iran. International Journal Of Renewable Energy Research. 2012;2(4):665-73.