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温湿度独立控制系统具有避免常规空调系统中冷源能源品位的损失、满足不同热湿比变化的要求及处理设备均为干工况运行等优点。干式风机盘管加新风空调系统虽值得推广,但在运行中存在一些问题。叙述了温湿度独立控制空调系统的特点及应用,指出,利用全热交换器预处理新风是解决干式风机盘管空调系统运行困难和降低新风机组能耗的有效手段。 相似文献
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张彬 《中国锅炉压力容器安全》2010,(7):13-15
在热采锅炉运行中干度是一个重要参数,其精确程度影响着热采锅炉运行的安全性和热力采油的效果在水/蒸汽两相流的动态监测技术的基础上,开发出了干度微机测控技术,用压差节流装置测湿蒸汽的干度与流量等参数,配合温度、压力传感器便可以自动检测热采锅炉的运行情况,同时可以通过信号前馈和反馈控制锅炉给水量和风量,实现热采锅炉自动安全运行。 相似文献
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热湿独立处理空调系统是一种新兴的可以将空气温度和湿度分开处理的系统,其强除湿性及节能性对建筑节能具有重要意义。本文在建筑能耗仿真软件中建立了热湿独立处理空调系统,对其能耗进行了全年8 760 h的仿真并与分体式空调系统进行了对比。结果显示:在长江流域以南及沿海地区的热湿气候下溶液除湿空调系统最节能,在长江流域以北内陆地区的寒冷干燥气候下使用分体式空调更加节能,冷凝除湿再热过程是造成热湿气候下分体式空调能耗高的原因。 相似文献
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介绍分析了高炉喷吹废塑料技术的研究现状和所用废塑料分离预处理的技术,并对高炉喷吹废塑料技术所带来的环境影响、能源利用和降低炼铁成本等方面的效果进行了综述。 相似文献
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随着人们对新能源和环境的重视,锂离子电池的应用逐渐扩展到电动汽车和储能领域,这势必增加了锂资源的使用和消耗.在锂资源日益紧缺的形势下,锂离子电池原材料成本必然难以降低,使其在大规模储能中的应用受到限制.而室温钠离子电池由于其资源丰富,成本低,能量转换效率高,循环寿命长,维护费用低等诸多优势已成为目前研究的热点.本文对室温钠离子电池材料选择和原材料成本进行了分析,并与当前常用的锂离子电池体系进行对比,从电池经济性角度表明室温钠离子电池是大规模储能领域的优秀备选电池. 相似文献
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燃料电池是一种清洁、高效的发电方式,其普遍应用将会给人类带来极大的环境效益,解决人们目前所面对的能源缺乏问题。文章对燃料电池进行成本分析、预算,指出了实现燃料电池商业化存在的问题及相应的解决办法。同时,论述了ZAFC的成本及在交通运输中的应用,也对混合型交通工具的发展进行了分析,指出其在燃料电池发展过程中所起的作用和意义。 相似文献
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R. Aburas 《Energy Policy》1989,17(6):591-598
Jordan imports almost all the energy required for its social and economic development. During the period 1974–1984, energy consumption grew at an average rate of about 14%/year, due mainly to growth in the national economy; but exacerbated by inefficient use of energy. To alleviate the burden of the energy bill on the economy, the Ministry of Energy has adopted a policy aimed at securing sufficient energy supplies at minimum cost to the economy. This policy has focused on improving the efficiency of energy-use and encouraging energy conservation in order to reduce the effect of oil imports on foreign reserves, reduce the impact of emissions of toxic gases on the environment, and the cost of additional investment in production facilities. The energy conservation programme was put into application in early 1985. The energy income elasticity during the period 1985–1988 has dropped from (1.4) to (1), which indicates a substantial improvement in overall energy utilization. 相似文献
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叙述了人类社会煤炭利用的现状、愿望和存在的危害以及由于人类对煤炭利用造成环境破坏的关注而引起的思考。指出,人类之所以使用煤炭作为能源是因其在自然界广泛的存在,煤的开采成本远低于其他形式的能源以及因为毁灭环境和导致大气中含C浓度增加的间接成本还没有受到制约,也不存在任何外在形式的损害。要改变煤炭利用对环境的影响,应当依靠科学技术改变能源结构,寻找煤炭利用的新方式。提出,改变煤炭利用的危害,应当通过美中两国的合作去实现。 相似文献
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Share of power generation from renewable energy sources has been steadily increasing all over the world, mainly due to the concern about clean environment. Cost of renewable power generation has reduced considerably during the last two decades due to technological advancements and at present some of the renewable energy sources can generate power at costs comparable with that of fossil fuels. In this paper, application of renewable energy-based power generation is proposed, for load management. The formulation utilizes non-linear programming technique for minimizing the electricity cost and reducing the peak demand, by supplementing power by renewable energy sources, satisfying the system constraints. Case study of twenty-two large-scale industries showed that, significant reduction in peak demand (about 34%) and electricity cost (about 14%) can be achieved, by the optimal utilization of the renewable energy from independent power producers (IPPs). 相似文献
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The prosperity of human society largely relies on safe energy supply, and fossil fuel has been serving as the most reliable energy source. However, as a non-renewable energy source, the exhaustion of fossil fuel is inevitable and imminent in this century. To address this problem, renewable energy especially solar energy has attracted much attention, because it directly converts solar energy into electrical power leaving no environment affect. In the past, various photovoltaic devices like organic, inorganic, and hybrid solar cells were fabricated in succession. In spite of high conversion rate of silicon based solar cells, the high module cost and complicated production process restricted their application solely to astronautic and aeronautic technology. For domestic and other commercial applications, research has been focused on organic solar cells for their inherent low module cost and easy fabrication. In addition, organic solar cells have their lightweight and flexibility advantage over conventional silicon-based crystalline solar cells. Among all the organic solar cells, dye-sensitized solar cells (DSSCs) are the most efficient and easily implemented technology. Here, this study examines the working principle, present development and future prospectus for this novel technology. 相似文献
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热回收蓄能空调系统的应用研究 总被引:7,自引:0,他引:7
本文重点阐述了热回收技术和蓄能技术在空调系统中的应用,在工作原理、节能循环分析、经济性分析、控制和应用注意事项等多方面进行了初步研究,研究结果表明该节能技术在制冷空调系统中的运用大有前途,可以得到大力的推广。 相似文献