A Mathematical Model for Determination of Electric Energy Performance of Small Solar Chimney System in Nakhon Ratchasima Province, Thailand

Abstract:

A solar chimney power plant is a simple solar thermal power plant that is capable of converting solar energy to thermal energy in the solar collectors. Then, the generated thermal energy is converted to kinetic energy in the chimney and ultimately to electric energy via a wind turbine and a generator. The purpose of this study is to evaluate the performance of the solar chimney power plant in Nakhon Ratchasima, Thailand in terms of estimateion for the electric energy output. A mathematical model based on the energy balance was developed to estimate the power output of solar chimneys as well as to examine the effect of various ambient conditions and structural dimensions on the power generation. It was found that, the wind speed inside chimney reaches more than 2 times of the value of free wind speed outside the chimney. The solar chimney power plant with 10 m chimney height and 4 m chimney diameter is capable of yearly producing between 1,779-3,647 W and the performance of solar chimney in the range of 9-18% respectively. The highest performance of solar chimney (18%) was appeared in April. It can save the use of conventional sources of energy like oil and natural gas.

• Periodical: Applied Mechanics and Materials (Volume 804)
• Pages: 341-344
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.804.341
• Online since: October 2015
• Authors: Pongsak Jittabut*
• Keywords: Energy Performance, Mathematical Model, Nakhon Ratchasima, Power Generation, Solar Chimney, Thailand

References

[1] W. Haaf, K. Friedrich, G. Mayr and J. Schlaich, Solar Chimneys Part 1, Principle and Construction of the Pilot Plant in Manzanares, International Journal of Solar Energy. 2 (1983) 3-20.

DOI: 10.1080/01425918308909911

[2] N. Pasumarthi and S.A. Sherif, Experimental and theoretical performance of a demonstration solar chimney model-part I: mathematical model development, International Journal of Energy Research. 22(3) (1998) 277-288.

DOI: 10.1002/(sici)1099-114x(19980310)22:3<277::aid-er380>3.3.co;2-i

[3] S. Larbi, A. Bouhdjar and T. Chergui, Performance analysis of a solar chimney power plant in the southwestern region of Algeria, Renewable and Sustainable Energy Reviews. 14 (2010) 470-477.

DOI: 10.1016/j.rser.2009.07.031

[4] X.P. Zhou, F. Wang, J. Fan and R.M. Ochieng, Performance of solar chimney power plant in Qinghai-Tibet Plateau, Renewable and Sustainable Energy Reviews. 14 (2010) 2249-2255.

DOI: 10.1016/j.rser.2010.04.017

[5] R. Sangi, Performance evaluation of solar chimney power plants in Iran, Renewable and Sustainable Energy Reviews. 16 (2012) 704-710.

DOI: 10.1016/j.rser.2011.08.035

[6] X.P. Zhou, J.K. Yang, B. Xiao, G.X. Hou and X.Y. Shi, Special Climate around a Commercial Solar Chimney Power Plant, Journal of Energy Engineering. 134 (2008) 6-14.

DOI: 10.1061/(asce)0733-9402(2008)134:1(6)

[7] F. Cao; L. Zhao; L. Guo, Simulation of a sloped solar chimney power plant in Lanzhou, Energy Conversion and Management. 52 (6) (2011) 2360-2366.

DOI: 10.1016/j.enconman.2010.12.035

[8] Information on https: /eosweb. larc. nasa. gov/sse.