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International Journal of Photoenergy
Volume 2013, Article ID 197913, 9 pages
http://dx.doi.org/10.1155/2013/197913
Research Article

The Evaluation of Solar Contribution in Solar Aided Coal-Fired Power Plant

School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China

Received 17 October 2012; Revised 11 January 2013; Accepted 29 January 2013

Academic Editor: Kalvala Srinivas Reddy

Copyright © 2013 Rongrong Zhai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Solar aided coal-fired power plants utilize various types of solar thermal energy for coupling coal-fired power plants by using the characteristics of various thermal needs of the plants. In this way, the costly thermal storage system and power generating system will be unnecessary while the intermittent and unsteady way of power generation will be avoided. Moreover, the large-scale utilization of solar thermal power and the energy-saving aim of power plants will be realized. The contribution evaluating system of solar thermal power needs to be explored. This paper deals with the evaluation method of solar contribution based on the second law of thermodynamics and the principle of thermoeconomics with a case of 600 MW solar aided coal-fired power plant. In this study, the feasibility of the method has been carried out. The contribution of this paper is not only to determine the proportion of solar energy in overall electric power, but also to assign the individual cost components involving solar energy. Therefore, this study will supply the theoretical reference for the future research of evaluation methods and new energy resource subsidy.