共查询到20条相似文献,搜索用时 46 毫秒
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生物质就地及时压缩成型技术——Highzones技术 总被引:8,自引:0,他引:8
生物质能源在可再生能源中占有举足轻重的地位。大量、高效地利用生物质能源,尤其是我国的秸秆类农业生产废弃物,一直是生物质能利用技术研究开发的重点方向。一种全新的生物质颗粒燃料成型技术(Highzones技术)已由北京惠众实科技有限公司开发成功,在生物质燃料成型技术领域获得了突破性进展。2004年,经过瑞典农业大学生物质技术与化学研究所严格的系统测试,证明Highzones技术的性能优于国际上现有的颗粒成型技术。Highzones的发明可使生物质颗粒燃料的成型设备具有紧凑、经济、安全的特点,便于在生物质原料产地推广使用。通过进一步开发,颗粒燃料成型机还可以与联合收割机配套,实现同时收获粮食与秸秆颗粒燃料。Highzones技术能够消除生物质燃料规模化应用中存在的收、运、储成本高这一"瓶颈"问题,从而使生物质颗粒燃料进入商业化燃料市场,最大可能地替代化石能源。Highzones技术的应用和推广,可使形成一条生物质颗粒燃料生产与消费的产业链,对缓解我国能源紧张、减少二氧化碳排放、促进Z生态绿化产业发展,以及扩大农村就业、增加农民收入和改善其生活条件,将发挥重要作用。 相似文献
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《Power and Energy Magazine, IEEE》2007,5(4):41-49
India is in a state of flux as far as the power is concerned. The distribution sector, which was not well attended to, is now the focus of the paper. The tariff rationalization and reduction in losses are the key issues. Proper policies implemented by the regulators can handle these issues. New technologies such as IT applications and AMR will play an important role in managing the future needs of the distribution sector. 相似文献
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When we use the Cobb-Douglas equation to investigate economic growth, we require data on the levels of the capital and labor inputs, and corresponding data on the level of output, at different points in time. We conclude that the inclusion of energy in the standard Cobb Douglas production function does not explain the contribution of technological process (Hicks-neutral) to a rise in the rate of output unless, possibly, one is able to make the seemingly unreasonable assumption that labor should not appear in the production function.An interesting future project will be a statistical analysis of the historic trend in GNP, a technological change and the consumption of available energy. 相似文献
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A. Zahedi 《Renewable & Sustainable Energy Reviews》2010,14(8):2208-2213
With some of the world's best solar and wind resources, Australia is a prime market for solar and wind energy. The growing renewable energy industry can take advantage of Australia's stable economy, good access to grid infrastructure and well organised financial and legal services.Although development has been slower than what was anticipated, but with the promises made by the new government, the renewable community hopes for a brighter future for solar and wind energy in Australia.The objective of this paper is to present an overview of the current status of solar and wind energy in Australia, then to take a closer look at solar and wind potential, current activities, and finally to discusses about Australian Government support and to predict the future outlook of solar and wind energy. 相似文献
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The paper presents a status of wind power in Denmark and on the technical and industrial achievements. The present total installed capacity is be the end of 1995 approx. 630 MW, and the contribution to the electric energy generation in Denmark is approx. 4%.This presentation is to a large extent based on Andersen 1995a and Andersen 1995b. 相似文献
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多价电池的发展为解决目前锂离子电池安全性差、成本高及能量密度低的瓶颈提供了机会。相比于锌和镁,钙不仅储量大,而且氧化还原电势(-2.87 V)及密度更低;然而,钙金属电池相比其它多价电池得到的关注依然较少,主要原因在于非质子电解液中钙金属表面形成的钝化层无法有效传导Ca2+,进而导致相应的沉积过程难以实现;同时,稳定的储钙电极材料的研究也成为钙金属电池进一步发展的另一挑战。本文对金属钙及其合金负极在不同电解液中的电化学行为、嵌入类型(普鲁士蓝类、氧化钒等)及转换类型(钙氧电池、钙硫电池)等所涉及到的钙金属电池正极材料的研究进展进行详细综述。 相似文献
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锂硒电池因其可观的体积比容量(3254 mA·h/cm3),已经引起了国内外研究学者们的广泛关注。本 文在介绍锂硒电池硒/碳正极材料的基础上,指出了锂硒电池目前存在的主要问题,并提出了可能的解决方案,最后对未来锂硒电池的研究方向做出了展望。 相似文献
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商业化的锂离子电池大多采用有机液体作为电解质体系,有机液体电解质在电池的工作过程中,会发生泄漏、挥发、燃烧甚至爆炸,存在严重的安全隐患,研究高效、环保、安全的电解质是解决这一问题的主要途径。固体电解质取代传统的液体电解质,不仅可以在传输导锂的同时抑制锂枝晶的生长,而且具有高的机械强度,简化电池的制备工艺,降低电池的制造成本。由于具有以上的优点,固体电解质的研发不断引起人们的广泛关注。本文综述了硫化物固体电解质的研究进展,包括二元和三元硫化物固体电解质,同时讨论了掺杂改性或复合改性对其性能影响,并展望了硫化物固体电解质未来的发展方向。 相似文献
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The reduction of measured diffuse irradiance due to the use of a shadowband is evaluated. For cloudless sky, an exact mathematical model was developed. Measurements throughout the year confirm the model results. The values are close to the semiempirical model developed by Drummond only during noon hours. Towards morning and afternoon a contribution from reflected direct solar irradiance from inside the shadowband reduces the loss and, at very low sun angle, can even provide a gain in the measured diffuse irradiance. The albedo of the inner band surface is of importance for the amount of this gain.During overcast sky the loss of measured diffuse irradiance varies with the season: During the winter months when only a small section of the sky is obstructed by band, 3 per cent are lost, during summer this value is between 8 and 10 per cent. 相似文献