集成太阳能热化学过程的冷热电联产系统
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摘要
提出了集成抛物槽式双轴跟踪镜场的太阳能与清洁燃料热化学互补的微燃机冷热电联产系统。双轴跟踪的抛物槽镜场产生中低温太阳能热驱动吸收/反应管内甲醇分解生成合成气。合成气作为微燃机燃料,驱动分布式能源系统输出冷热电产品。研究了太阳能热化学关键过程吸收/反应管内甲醇转化率、沿程温度分布规律,对系统进行了能量分析和拥分析。结果表明,新系统热效率为74.74%,系统发电效率达到32.34%。研究结果为高效、稳定利用太阳能和清洁燃料提供了一种有效途径。
A combined cooling heating and power system integrating a solar thermochemical process of solar energy and clean fuel with double-axis parabolic trough collectors and a micro gas turbine is proposed in this paper. Double-axis parabolic trough collectors generate mid-and-low temperature solar thermal energy, which provides heat for methanol decomposition into syngas of CO and H2 in the solar receivers/reactors. This syngas combusts in the micro gas turbine and cooling, heating and power are output in the distributed energy system. The reaction rate of the methanol decomposition and the temperature distribution along the tube in the solar thermochemical process are investigated.Furthermore, the energy analysis and exergy analysis of the proposed system are studied. Results show that the primary thermal efficiency and the electricity efficiency are 74.74% and 32.34%,respectively. The promising results indicate an efficient way to utilize solar energy and clean fuel.
A combined cooling heating and power system integrating a solar thermochemical process of solar energy and clean fuel with double-axis parabolic trough collectors and a micro gas turbine is proposed in this paper. Double-axis parabolic trough collectors generate mid-and-low temperature solar thermal energy, which provides heat for methanol decomposition into syngas of CO and H2 in the solar receivers/reactors. This syngas combusts in the micro gas turbine and cooling, heating and power are output in the distributed energy system. The reaction rate of the methanol decomposition and the temperature distribution along the tube in the solar thermochemical process are investigated.Furthermore, the energy analysis and exergy analysis of the proposed system are studied. Results show that the primary thermal efficiency and the electricity efficiency are 74.74% and 32.34%,respectively. The promising results indicate an efficient way to utilize solar energy and clean fuel.
引文
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[2]Lamnatou C,Chemisana D.Concentrating Solar Systems:Life Cycle Assessment(LCA)and Environmental Issues[J].Renewable and Sustainable Energy Reviews,2017,78:916-932
[3]HUANG Xing,YUAN Yuan,ZHANG Huiyuan,et al.Solar Thermochemical Hydrogen Production Using Metallic Oxides[J].Energy Sources,2017,39(3):257-263
[4]Steinfeld A.Solar Thermochemical Production of Hydrogen—a Review[J].Solar Energy,2005,78(5):603-615
[5]Philibert C.Technology Roadmap:Concentrating Solar Power[M].OECD/IEA,2010
[6]Villafan-Vidales H I,Arancibia-Bulnes C A,RiverosRosas D,et al.An Overview of the Solar Thermochemical Processes for Hydrogen and Syngas Production:Reactors,and Facilities[J].Renewable and Sustainable Energy Reviews,2017,75:894-908
[7]XU Da,LIU Qibin,LEI Jing,et al.Performance of a Combined Cooling Heating and Power System with Mid-andLow Temperature Solar Thermal Energy and Methanol Decomposition Integration[J],Energy Conversion and Management,2015,102:17-25
[8]LIU Taixiu,LIU Qibin,XU Da,et al.Performance Investigation of a new Distributed Energy System Integrated a Solar Thermochemical Process with Chemical Recuperation[J].Applied Thermal Engineering,2017,119:387-395
[9]Fernandez-Garcia A,Zarza E,Valenzuela L,et al.Parabolic-Trough Solar Collectors and Their Applications[J].Renewable and Sustainable Energy Reviews,2010,14(7):1695-1721
[10]SUN Jie,WANG Ruilin,HONG Hui,et al.An Optimized Tracking Strategy for Small-Scale Double-Axis Parabolic Trough Collector[J].Applied Thermal Engineering,2017,112:1408-1420
[11]金红光林汝谋.能的综合梯级利用与燃气轮机总能系统[M].北京:科学出版社,2008JIN Hongguang,LIN Rumou.The Cascade Utilization of Energy and Systems Integrated with Gas Turnines[M].Beijing:Science Press,2008
[12]HAN Wei,CHEN Qiang,LIN Rumou,et al.Assessment of Off-design Performance of a Small-scale Combined Cooling and Power System Using an Alternative Operating Strategy for Gas Turbine[J].Applied Energy,2015,138:160-168
[13]Capstone C200 Microturbine Technical Reference[M].Capstone Turbine Corporation,2008
[14]LIU Qibin,JIN Hongguang,HONG Hui,et al.Performance Analysis of a Mid-and Low-Temperature Solar Receiver/Reactor for Hydrogen Production with Methanol Steam Reforming[J].International Journal of Energy Research,2011,35(1):52-60
[15]HOU Zhi,ZHEN Danxing,JIN Hongguang,et al.Performance Analysis of Non-Isothermal Solar Reactors for Methanol Decomposition[J].Solar Energy,2007 81:415-423