自動跟踪式太阳能聚光集热器设计ok.doc

自动跟踪式太阳能聚光集热器的设计 机电一体化专业 【摘要】：能源与环境问题是当代世界各国面临的重大的社会问题。而能源是国民经济建设和改善人民生活条件的重要物质基础。我国幅员辽阔，且多处于中低纬度，太阳能资源十分丰富。研究和重视太阳能的开发和利用，对于我国资源环境持续发展及全球环境保护有着深远的意义。目前对太阳能的集热装置很多，但在我国广泛应用的还是平板集热器。目前，抛物槽集熱器在一些发达国家已经得到较好的利用，并且获得两块较好的效果，但在我国，该项技术却很少被研究。 本设计，就是从更加有效的利用太阳能的目的出发，着力提高入射阳光的能量密度，使之聚焦在较小的集热面进行表面处理以降低热损失，使得在较高的集热温度下，得到较高的集热效率，并且能充分利用好一整天的太阳能，从而大大的提高各种太阳能利用系统的总效率。这就是本次设计的自动跟踪式抛物槽聚光集热器。 【关键词 】：太阳能 集热器 真空集热管 跟踪装置  Design of automatic?tracking solar?collector Gu Mingwei (Southwest University of Science and Technology?Network Institute of?electromechanical integration?professional 13spring) 【Abstract】：?the problem of energy and environment?is amajor social?problem facing?the contemporary world.?While the energy is the?important material base of national economic?development and improvement of peoples?living conditions.?China has a vast territory,?and?in the lowlatitude,?solar energy?resources are very rich.?Research and utilization of?solar energy?and?the importance of?thedevelopment,?is far-reaching meaning for the?sustainable development of?resources and environment in China?andglobal environment protection.?At present a lot of?heat collector?of solar energy,?but?widely used in China?or?flat plate heat collector.?At present,?collector?is better?utilized in some?developed countries?parabolic trough,?and obtain?two pieces of?good results,?but in our country,?the technologyhas seldom been studied. This?is?the purpose of?design,?from?solar energy?more effectively use?of?incident sunlight,?focus on improving?theenergy density,?so that the?focus?of?surface treatment in the?heat collecting?small surface?to?reduce heat loss,?so?in the hot?set?higher temperature?to obtain?higher thermal efficiency,?and can?make full use of?solar energy?all dayand?thus greatly improve?the efficiency of the whole systemof?all kinds of?solar energy utilization.?This?is the design of the?automatic tracking?parabolic trough?collector. 【Keywords】: solar energy solar collector vacuum t