针对传统空调系统采用温湿度联合处理的方式而导致的舒适性差、能源消耗大等问题,以南昌市某建筑为研究对象,利用TRNSYS仿真软件建立太阳能-地热能复合利用的溶液除湿空调系统数学模型,并分析集热器面积及埋管数量对系统性能的影响,在此基础上选取合适的参数对系统全年运行工况进行模拟。同时针对夏季室外新风含湿量波动较大的问题,提出对新风采取分流处理的解决方式。结果表明：在制冷工况下,室内平均温度为26.1 ℃,相对湿度在50%~65%之间;在供暖工况下,室内平均温度为19.2 ℃,相对湿度大部分处于40%~60%之间,能够很好地控制室内热湿环境。供暖和制冷季节能效比分别为6.2和4.5,全年性能系数为4.7,明显高于传统的空调系统。
Abstract
Aiming at the problems of poor comfort and high energy consumption caused by the combined treatment of temperature and humidity in the traditional air conditioning system, a liquid desiccant dehumidification air conditioning system driven by the combined utilization of solar energy and geothermal energy is established with its mathematical model by using TRNSYS simulation software, taking a building in Nanchang as the research object, and the effects of collector area and buried pipe number on the system are analyzed. On this basis, appropriate parameters are selected to simulate the annual operating conditions of the system. At the same time, aiming at the problem of great fluctuation in moisture content of outdoor fresh air in summer, a solution of shunting fresh air is put forward. The results show that the average indoor temperature is about 26.1 ℃ and the relative humidity is between 50%-65%; Under the condition of heating, the indoor average temperature is about 19.2 ℃ with the relative humidity of mostly between 40%-60%, which shows the indoor hot and humid environment are well controlled. The energy efficiency ratio in heating season and in refrigeration season are 6.2 and 4.5, respectively and the annual performance coefficient is 4.7, which are significantly higher than the traditional air conditioning system.
关键词
溶液除湿 /
太阳能 /
地源热泵 /
能效比 /
TRNSYS
Key words
liquid desiccant dehumidification /
solar energy /
ground source heat pump /
energy efficiency ratio /
TRNSYS
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基金
国家自然科学基金（51766010）; 南昌市高效制冷技术创新团队（2018-CXTD-004）
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