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世界性的能源危机使太阳能的利用显得日益重要和迫切。合理地、最大限度地使用太阳能是今后的发展目标。我国民用建筑中对太阳能的利用主要是对低温太阳能的利用,包括太阳能供热水、供暖、制冷等。本文对低温太阳能的最新应用技术进行了概述,分析了我国大力发展太阳能光热利用的现状和发展前景。 相似文献
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对太阳能固体吸附式制冰机进行了大量的实验研究,实测出太阳能制冰机在外界不同太阳辐射能量下的性能特性。对太阳能固体吸附式制冰机进行了传热、传质数值计算,计算结果与实验吻合较好。用所建立的数学模型对太阳能制冰机进行了符合实际环境工况的性能分析,并对中国西部西藏地区气候资源条件下的太阳能制冷效果作了具体分析。研究工作从理论与实验相结合的角度较为客观地分析了太阳能制冰机实用化前景。 相似文献
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太阳能总辐射仿真软件的设计及其实地测量验证 总被引:4,自引:0,他引:4
依据太阳能辐射的相关理论,采用VB语言设计了基于任意地理位置的太阳能总辐射仿真软件,通过对徐州地区太阳能总辐射的实地测量研究,证实了该软件的有效性,对于指导各地区太阳能的利用具有一定的实际意义。 相似文献
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太阳能冷管的研究及其进展 总被引:3,自引:0,他引:3
太阳能冷管以沸石分子筛—水为工质对,在一根玻璃管内完成吸附式制冷循环,一根冷管即为一个制冷单元,成功地解决了太阳能吸附式制冷技术难以转化为成果的问题。本文综述了作者近几年来对太阳能冷管首创性提出,以及其结构性能的研制和改进情况。采用真空集热方式和选择性涂层加强冷管对太阳能的吸收,采用整体固化复合吸附剂提高吸附床的吸附和脱附性能。本文还介绍了已制作的三代太阳能冷管型制冷系统的试验样机,在单一提供制冷的基础上,提出了既可以制冷又可以供热水的多功能太阳能冷管。目前,实验结果表明,最新的多功能太阳能冷管COP可达0.268,太阳能制冷与供热的总效率可达87.7%。 相似文献
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解读国际太阳能产业政策的影响 总被引:1,自引:0,他引:1
1西班牙太阳能强制安装政策
西班牙颁布实施的太阳能热水器强制安装政策,在国内掀起了安装太阳能热水器的高潮,同时在全球范围引起了强烈的反响,成为许多国家效仿的样本。对太阳能热利用技术的推广应用,西班牙政府不提供任何财税优惠政策,也不提供任何补贴, 相似文献
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介绍了太阳能热电联运系统实验装置的结构设计以及实验运行情况、实验结果表明,这种系统提高了对太阳能的收集效率,为太阳能利用开辟了新途径。 相似文献
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介绍了江苏省射阳县1975年至今太阳能技术推广应用的概况,包括太阳灶、太阳能热水器、太阳能温室、塑料大棚等在生活和生产领域的利用。同时,就实际应用中存在的问题提出了解决的方法,对今后的太阳能利用提出了看法。 相似文献
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Predicted to be the clean energy of tomorrow, solar energy has been in the forefront of energy development in many developed countries and a potential source of energy to developing countries like Malaysia. This paper presents Malaysia's solar energy or solar photovoltaic developmental outlook. The study is done by first looking into the country's energy policies related to solar energy. Key players in the solar energy development such as government institutions are introduced. Early solar energy programmes and a key project called Malaysia Building Integrated Photovoltaic (MBIPV) as well as its successful initiatives will be presented. Measures which have taken by the government of Malaysia including attractive incentives to encourage solar photovoltaic development, the country's potential in solar energy, foreign investments and future directions as well a feed-in tariff scheme will be presented in length to provide a broad spectrum of solar energy development in Malaysia. The outlook has been positive and the country is active in promoting solar as an alternative energy and is aware of benefits it will bring toward its economic development in the future. 相似文献
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The purpose of this study is to develop an analysis that allows an examination of the spatial distribution of the absorbed solar energy for a room. The room is composed of several areas that consist of an exterior window where solar beam and diffuse energies originate, an interior window, a door, and six opaque areas. Each area is subdivided into a number of discrete surfaces and an analysis based on the radiosity-irradiation method is used to determine the absorbed solar energy for each surface. A geometrically-based method is used to describe the location and magnitude of the directly incident solar beam energy for each surface. The influence of the number of discrete surfaces on the findings is examined. The results show that a grid pattern that produces discrete surfaces having dimensions of less than 0.3 m yields accurate results. Results are reported for different orientations of the room. As expected, the absorbed solar energy is high in regions where the solar beam energy irradiates a surface. The spatial distribution of the absorbed solar energy does vary significantly over the areas of the room. Measured solar energy values are used to compute the absorbed solar energy as a function of time of day. The movement of the energy across the surfaces of the room creates a time-varying value for the absorbed solar energy. Numerical values for the ratio of the absorbed solar energy for each area to the available solar energy from the exterior window are supplied. 相似文献
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R. Saidur G. BoroumandJaziS. Mekhlif M. Jameel 《Renewable & Sustainable Energy Reviews》2012,16(1):350-356
Solar energy is a clean, abundant and easily available renewable energy. Usage of solar energy in different kinds of systems provides scope for several studies on exergy analysis. In the present work, a comprehensive literature review has been carried out on exergy analysis of various solar energy systems. The systems considered under study are solar photovoltaic, solar heating devices, solar water desalination system, solar air conditioning and refrigerators, solar drying process and solar power generation. The summary of exergy analysis and exergetic efficiencies is presented along with the exergy destruction sources. 相似文献
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太阳能是一种巨大的无污染、可再生能源,开发利用太阳能是解决能源短缺,保护环境的主要途径之一。通过对太阳能热利用产品的介绍简要了解我国太阳能热利用产业的发展现状,同时介绍了我国在太阳能产业上的有关政策法规以及对如何引领太阳能热利用行业蓬勃发展的几点思考。 相似文献
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太阳能建筑光热应用国内外对比研究 总被引:1,自引:0,他引:1
反映太阳能建筑光热应用状况最直接指标是太阳热水器的各类数据,介绍以太阳能建筑热利用重要产品代表太阳热水器为研究对象,对比国内外太阳能建筑光热应用状况,并对我国太阳能建筑热利用状况得出结论。 相似文献
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Solar drying of agricultural products: A review 总被引:1,自引:0,他引:1
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It is commonly assumed that solar hot water systems save energy and reduce greenhouse gas emissions. The net energy requirement of solar hot water systems has rarely been analysed, including their embodied energy. The extent to which solar hot water systems save energy compared to conventional systems in Melbourne, Australia, is shown through a comparative net energy analysis. It was shown that the embodied energy component of the net energy requirement of solar and conventional hot water systems was insignificant. The solar hot water systems provided a net energy saving compared to the conventional systems after 0.5–2 years, for electric- and gas-boosted systems respectively. 相似文献