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对GMP洁净空调系统一次回风方式的两种设置方法在耗能方面进行比较,双表冷一次回风系统比单表冷一次回风系统节能30%,对全厂节能的贡献率约为10%。 相似文献
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现代公共建筑的大量增加和全空气空调系统的普遍应用,促使公共建筑能耗大幅增加。基于变风量运行的原理,首先对空气状态进行分区,然后对各区进行详细的运行策略分析。建立了一个定风量系统的房间模型,计算其全年逐时负荷,从而确定送风状态点的全年变化趋势。基于Open-Studio软件,模拟分析4月中上旬至6月上旬、10月下旬至11月上旬是新风量利用潜力最高的时段,且在1月初至7月中旬、11月上旬至12月末时加湿量都明显降低。当新风比可调时,全年的湿负荷、热负荷、冷负荷均减少59.05%、35.54%和12.12%,全空气空调系统在变新风比运行时节能效果十分明显。 相似文献
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介绍了四种空调系统的节能控制方式,即室内温度、湿度设定值控制,新风量控制,动力设备启停控制及空气处理工艺的控制。 相似文献
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针对暖通空调节能的趋势 ,分析了建筑环境对暖通空调系统的影响 ,提出从建筑环境方面考虑问题是暖通空调节能的必要途径 ,概括地介绍了空调能源的发展方向和空调节能的多种手法 相似文献
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从某铸造工厂综合空调系统的实际工程出发,在综合空调系统设计和控制系统设计的基础上,分别从自然冷却、冷冻水的能量能级利用、岗位空调技术、变频控制等方面论述该空调系统的节能措施。 相似文献
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冬冷夏热地区户式空调设计与节能分析 总被引:3,自引:0,他引:3
以一单元式住宅的风道式户式空调系统为例,探讨了冬冷夏热地区户式空调的新风量确定方法,分析了户式空调的负荷特性,节能设计及户式空调系统的设计负荷与设计风量。 相似文献
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In this paper a scheme has been proposed to maintain the temperature and the humidity, in each of the rooms served by a central Air Conditioner (AC) unit, close to the targeted values, and reduce the electrical energy intake of the AC compressor. The upper limits of the comfort zone, typically marked at a temperature of 25 °C and a relative humidity of 70%, are used as the targets. It should be noted that a conventional AC system controls humidity in its own way without giving the users any scope for changing the set point for the targeted humidity unlike the scope it offers to change the set point for the targeted temperature through a thermostat. But in this work this limitation has been taken into cognizance and overcome to a great extent using fuzzy logic to represent the intricate influences of temperature on the humidity of the space being cooled and correct the thermostat setting. In the developed scheme, the sensor captured temperature and humidity readings for each room are compared against the targets at the selected intervals of time, and the corresponding differences are fuzzified. These differences are used to decide the fuzzy qualifier, which is decoded into a crisp value that is the change required in the setting of the thermostat of the AC. As a result, each room will maintain a temperature near 25 °C and a relative humidity near 70% while the compressor will remain off for an appreciable period leading to a saving of energy. Though a thermostat with programmable setting for an AC unit dedicated to a single room has been reported in the literature, the same for a central AC unit that serves more than one room appears to have not yet been presented. The advantages of the scheme proposed for programming a thermostat under central air conditioning system are that it (i) requires for each room only a pair of input data i.e. the sensor captured temperature and humidity readings for each room, (ii) controls humidity indirectly and (iii) leads to a saving in energy consumption while maintaining a comfortable level of cooling in each of the rooms though their occupancy, size and the thermal conditions are different from one another. 相似文献
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在自行搭建的双蓄能实验平台上进行了制冷兼蓄热实验研究,对比了制冷兼蓄热模式和一般制冷模式,探讨了不同冷冻水流量和不同风机盘管风量对机组性能的影响.实验结果表明:蓄热对机组制冷端的影响很小,但是由于回收了大量的冷凝热,使得机组的综合能效比得到大幅提高,因此蓄热对空调节能具有较大作用.此外,在制冷兼蓄热模式下,冷冻水流量或风机盘管风量越大,机组的综合能效比越大,当风量为1033 m3/h,冷冻水流量为972 L/h时,机组综合能效比高达7.06. 相似文献
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讨论了二次回风系统在夏季工况下与一次回风系统相比的节能效果,以及在冬季工况如何更好降低能耗的问题,着重分析了冬季工况下机器露点对能耗的影响,并提出降低能耗的途径。 相似文献