共查询到19条相似文献,搜索用时 78 毫秒
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大型公共建筑的空调系统存在较大的节能潜力。空调系统的节能应根据自身的特点,从围护结构、系统选型和运行调节等几方面入手,来达到系统节能控制目标。 相似文献
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背景
建筑面积在2万平方米以上的写字楼、商场、酒店等称为大型公共建筑.这些建筑多数采用集中空调系统。国内外研究表明,这类空调系统能耗水平较高,且普遍存在低效运行的问题。 相似文献
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当前,随着社会主义经济的不断发展,空调在公共建筑中逐渐实现了普及性的应用,进而使得公共建筑内部的环境变得更为舒适,但是,这也使得公共建筑的能耗逐渐增加,从而加大了环境的负担。在节能环保的号召下,如何实现对公共建筑空调系统的节能设计并实现优化管理,亟待解决。本文针对公共建筑空调系统的节能设计与运行管理进行了探讨,以供参考。 相似文献
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空调系统是智能建筑的重要组成部分,在空调系统运行的过程中,对电量的需求较大。我国的大部分空调系统没有得到有效的监管的控制,这就使空调控制系统形同虚设,不能起到节约能耗的作用。本文针对我国公共建筑空调系统的现状、主要的节能控制技术和节能控制技术的应用进行研究。 相似文献
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张文才 《建设科技(建设部)》2007,(2):74-75
据对北京市大型公共建筑能耗调查显示:公共建筑夏季空调室温提高1摄氏度,大约可节电5%-10%;对建筑设备进行合理改造,避免“大码拉小车”现象,注重设备的运行效率,使之在最佳运行点运行,大约可节电10%-20%;采用建筑设备监控系统,达到最佳的控制需求,又能达到节能10%-20%的效果;另外,除了采用高效的系统、设备之外,很重要的一方面就是加强空调系统的日常运行维护,减少因人员维护工作小完善而造成的浪费,达到节能的目的。 相似文献
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IPLV overall coefficient, presented by Air-Conditioning and Refrigeration Institute (ARI) of America, shows running/operation status of air-conditioning system host only. For overall operation coefficient, logical solution has not been developed, to reflect the whole air-conditioning system under part load. In this research undertaking, the running time proportions of air-conditioning systems under part load have been obtained through analysis on energy consumption data during practical operation in all public buildings in Chongqing. This was achieved by using analysis methods, based on the statistical energy consumption data distribution of public buildings month-by-month. Comparing with the weight number of IPLV, part load operation coefficient of air-conditioning system, based on this research, does not only show the status of system refrigerating host, but also reflects and calculate energy efficiency of the whole air-conditioning system. The coefficient results from the processing and analyzing of practical running data, shows the practical running status of area and building type (actual and objective) - not clear. The method is different from model analysis which gets IPLV weight number, in the sense that this method of coefficient results in both four equal proportions and also part load operation coefficient of air-conditioning system under any load rate as necessary. 相似文献
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针对中央空调系统的节能方法进行了探讨,分别阐述了工艺设计、围护结构、风系统控制、暖通空调系统的运行管理等方面的节能潜力及其可行性,以期指导实践,有效地利用和节约能源,实现可持续发展。 相似文献
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本文阐述了厦门邮件处理中心的方案构思,探讨和实践了大进深公共建筑的生态设计,在当前能源紧张的局面下,凸显其在生态建筑设计中的重要意义。 相似文献
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在现代建筑中,空调的能耗常常占全楼总能耗的40~50%,空调系统节能改造对建筑的节能减排具有重要的意义。本文结合一座高层办公建筑的中央空调的运行情况,提出了相应的节能改造方案。 相似文献
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The global optimization model for the overall control of air-conditioning system aiming at the minimum energy consumption is developed in this work. The method of decomposition-coordination, which is adept at solving the ultrahigh-dimensional optimization problems, is used for the model solution. Taking one real central air-conditioning system as the case study, the hourly optimal conditions of all equipments in this system on one operation day were simulated by the global optimization model. To examine the validity of decomposition-coordination algorithm, direct-search method (which is admitted to be the most reliable in optimization calculation) is used to make the comparison. It showed that the optimal results obtained by the two methods were essentially the same, but decomposition-coordination method would have much higher calculation efficiency than direct-search method. The energy analysis indicated that the energy saving brought by the global optimization was mainly thanks to the adjustment of pumps and fans rather than that of the chillers. It was believed as well that more energy saving would be achieved under the lower load condition of the system if the globally optimal control scheme were implemented. 相似文献
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“非典”问题引起的对今后空调系统方式的思考 总被引:4,自引:0,他引:4
总结了“非典”防治工作对空调系统提出的新问题 ,从而提出今后要保证建筑环境的安全 ,空调系统不仅要保证热湿环境、空气质量 ,还应尽可能减少潮湿表面 ,减少灰尘聚集 ,避免各区域空气的彼此流动。从这些要求出发 ,对目前的各种空调系统方式作了评价 ,并进一步提出未来新的空调系统形式 :由新风排除人体产生的热、湿、CO2 和气味 ;由另外独立的辐射或对流系统排除围护结构等其它热源产生的显热。还讨论了系统的具体形式及能耗品质。 相似文献
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对目前我国集中空调设计施工与运行管理中存在的问题进行了分析,从风系统、冷热水系统、冷却水系统、冷热源选择四个角度出发,探讨了集中空调系统节能技术的设计方法,以降低系统能耗,达到节能的目的。 相似文献
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分析了饭店建筑空调系统能耗的构成,从空调冷热源、风系统、水系统以及自动控制系统等方面探讨了节能设计的方法,以提高设备利用率,达到节能的效果。 相似文献