INTEGRATING SOLAR THERMAL COLLECTORS WITH COAL-FIRED POWER GENERATING SYSTEM
Characterized by cleaner, more economic and environment-friendly energy, solar power has been increasingly concerned and rapidly developed in recent years. It is of great significance for the sustainable development of power industry to study and solve the key problems in solar power utilization. The energy structure and energy consumption of Chinas power industry were comprehensively reviewed in this speech, especially the distribution and exploration status of solar power resource. The commonly used solar thermal power systems were presented and compared such as parabolic trough, tower and dish collectors. By integrating solar thermal energy into conventional power units, the solar aided coal-fired hybrid power system is the most efficient way to utilize solar energy for power generation, and reduce the coal consumption and emission as well. Several key technologies in solar power utilization were discussed in detail including the integration mechanism, the coupling features, the optimal control method and the cost allocation between solar power and fossil fuel power generation etc. Based on the theories of thermodynamics and related system analysis methods, the steady-state and dynamic characteristics of the solar aided coal-fired hybrid power system were modeled and analyzed. Based on this, the operational and economic performance of the hybrid thermal power system integrated with typical thermal power units was evaluated covering 200MW, 300MW and 600MW subcritical, 600MW supercritical, 600MW and 1000MW ultra supercritical. It provides great and promising prospect to find an appropriate mode for the sustainable development of Chinas power industry.
Yang Yongping
North China Electric Power University Zhuxinzhuang, Dewai District, Beijing, P. R. China 102206
国际会议
大连
英文
5
2012-05-28（万方平台首次上网日期，不代表论文的发表时间）