Critical Review of Hybrid Power Cycles Part 2:Using thermochemical upgrading
Most power generation systems use one source of heat,say fossil fuel,nuclear,solar,or geothermal,at one temperature,and also use that heat source directly as thermal energy.In cases where the cost of the heat is related to the temperature,such as with solar collectors,or when the temperature of the heat source is limited by operational considerations,such as in nuclear reactors,or when the available temperature is well below technological limitations of the plant,such as in geothermal energy use,or when waste heat at appropriate temperatures and price is available,such as in compounded internal combustion engines,it was found that gains in efficiency and reductions of emissions and cost could be achieved by using multiple heat sources of different temperatures,as described in part 1 of this paper 1.This paper is a critical review of another type of hybridization of power systems,called thermochemical energy conversion,by using some or all of the added thermal energy to produce a fuel,which is then burned for heat,and in some cases thus raising the power plants efficiency and/or reducing emissions,especially of CO2,and very importantly,allowing energy storage and distribution in the form of hydrocarbon fuels.Thus conversion to fuel alleviates some of the significant problems associated with the intermittency of heat sources such as solar.This paper focuses on the hybrid solar thermochemical power generation systems,which are believed to be economically more competent than the solar alone based power systems.
Thermochemical upgrading Power Generation Solar thermochemical power generation Hybrid Power Cycles Solar fuels
Na Zhang Noam Lior Yuejun Yan Ting Yue Qiang Chen
Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,P.R.China University of Pennsylvania,Department of Mechanical Engineering and Applied Mechanics,Philadelphia P
国际会议
桂林
英文
1-19
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）