【作者】 凌春雷；

【导师】 周志华；

【作者基本信息】 天津大学 ， 供热、供燃气、通风及空调工程， 2007， 硕士

【摘要】 能源是经济和社会发展的物质基础。随着社会经济的发展,世界能源逐渐出现紧缺现象,节约能源已经成为人类的共识。在社会的能源消耗中,建筑能耗所占的比重高达30%左右;在建筑能耗中,空调能耗又占到50%以上。降低空调能耗作为一种节约能源、缓解能源危机的有效措施,得到人类的普遍关注。现有制冷设备和空气处理设备已经比较完善,虽然能满足人类舒适性的要求,但是要在此基础上进一步提高机组的COP值比较困难。要进一步提高机组的节能效果,应该从新设备新形式上入手。在这种情况下温湿度独立控制空调系统对现有空调系统进行改进,通过对进入室内空气的温度和湿度分开处理,很好的解决了现有空调系统所存在的问题。本文介绍了目前的能源现状、现有空调系统的形式和所存在的问题,对温湿度独立控制空调系统进行了系统的介绍。结合天津建筑节能管理中心的实际情况,选择使用温湿度独立控制空调系统,新风机组选用热泵驱动的全热回收形式,并对温湿度独立控制空调系统的核心部件—热泵驱动的全热回收新风机组进行了性能测试。通过对新风机组在冬、夏两个季节运行情况的测试,分析得出在夏季工况下能够满足室内空气湿度的要求,在部分负荷时新风机组的能效比保持在2.9~3.7之间;在冬季工况下,新风机组同样能满足室内空气湿度的要求,并且新风机组的能效比保持在5.4~6.5之间。通过比较,可以看出,新风机组的能效比在夏季随着温度的升高而升高,在冬季随着温度的降低而升高,因此,在高温或低温季节,使用新风机组更具有节能效果;过渡季节可关闭新风机组,直接利用机组的风机为室内提供自然风。更多还原

【Abstract】 Energy is the basic material factor for the development of economy and society. As the economy evolves, energy of this world is emerging shortage, saving energy is becoming a conmen sense of society. Of all the energy consumptions, construction energy consumption occupies about 30%, while air-conditioning energy consumption more than 50%. Lowering the consumption of the air conditioner becomes a focus because it is an efficient way to save energy and release the energy crises.Nowadays Refrigeration equipment and air handling equipment are completed, though they can meet the demands of comfortableness, it is quit hard to improve the COP based on that. If saving-energy effects are hoped to be improved, new style of equipment must be concerned. Under such circumstance, independent humidity control air conditioning system should be replaced the current system, through dividing the degree of temperature and humidity of fresh air, solving the problems of current control air conditioning system successfully.For this paper, current condition of energy source , problems of system of current air conditioning , and independent humidity control air conditioning system were introductioned. Considering the reality of a building in tianjin, choosing and using independent humidity control air conditioning system to test the style of fresh air handling unit and the properties of core part of it---fresh air handling solution with liquid desiccant total heat recovery, this paper get to the conclusion that the new system could meet the demand humidity of inner air, while with effect of parts of loaded, the EER of fresh air handling unit was kept at 2.9~3.7. In winter, while maintaining the demanded inner humidity, the EER of fresh air handling unit could keep between 5.4~6.5. By contrast, it is clear that the ratio of energy and effect changes like this : the hotter in summer and the colder in winter the temperature is, the higher the efficiency is, so the conclusion is that in hottest and coldest season use fresh air handling unit could save more energy, while in transition season ,the best way is to turn off fresh air handling unit and use nature fresh air.更多还原