基于热伏材料中低温地热发电原理与技术构想

中文摘要: 本文系统分析了中国中低温地热发电的现状和技术瓶颈，提出了热伏材料概念，以大尺寸单晶热伏材料及其相应的热伏器件等为关键技术切入点，系统提出了高效、稳定的中低温地热热伏发电以及基于冷、热、电联供一体化的工程实施和精准对接的技术原理和构想。该技术构想突破了传统中低温地热发电通过机械能转化为电能的局限性，利用大尺寸单晶热伏材料将热能直接高效转化为电能，这一创新技术研发对保持中国在地热发电领域尤其是中低温区领域的国际核心竞争力、获取自主知识产权、实现地热能高效利用和规模开发具有重要的战略指导意义。同时，该战略性技术构想有望引领全球地热发电新的技术革命，以奠定中国在中低温地热发电领域处于全球领先地位，从而实现地热资源的清洁绿色可持续利用。
Abstract:This paper systematically analyzes the present situation and technological difficulties of middle-low temperature geothermal power generation in China.The concept of thermovoltaic materials is proposed.The key technologies such as large scale single crystals of thermovoltaic materials and thermovoltaic devices are utilized as the starting point.We systematically proposed the high efficient and stable middle-low temperature geothermal thermovoltaic power generation system,and proposed the technological principle and conception of engineering implementation and precise transfer based on cold,hot,and electrical consolidated integration.The technological conception breaks through the traditional restriction of middle-low temperature geothermal thermovoltaic power generation from mechanical energy to electricity,and directly converts heat energy into electricityeffectively by utilizing large-scale single crystalsof thermovoltaic materials.The research and development of such subversive technology is of great strategic guiding significance,especially in the middle-low temperature region,to maintain our country's international core competitiveness in geothermal power,to acquire independent intellectual property,and to realize the efficient utilization of geothermal energy and scale development.Meanwhile,this strategic technology concept is expected to lead a new technological revolution of geothermal power generation in the world,to establish our country in the field of middle-low temperature geothermal power generation for global leader,and to achieve the clean and green sustainable utilization of geothermal resources.