毛细管平面辐射空调系统的研究与应用

发布时间：2018-01-05 00:16

本文关键词：毛细管平面辐射空调系统的研究与应用　出处：《安徽理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着社会的发展,人们生活水平的提高,国家城镇化改革的推进,住宅和商业类建筑空调面积的不断攀升,人们对室内环境要求越来越高。近几年来,城市热岛效应加重,雾霾天气持续时间较长,因此室内温度和空气品质也是空气调节的重要方面。当今社会,能源问题和环境问题已经相当突出,节能减排也是每个行业需要贯彻执行的一项基本国策。为了响应此号召,一种高效、节能、热舒适性良好的空调系统即毛细管平面辐射空调系统被广泛应用。传统空调在运行时,室内没有新鲜空气的补给,导致空气品质下降、室内干燥、运行效率低下,虽然改进后的中央空调系统室内空气品质得以提高,但是也有系统成本高,维修麻烦,风机盘管末端噪音和房间温度控制不够精确等缺点。毛细管平面辐射空调系统主要由辐射末端系统,新风系统和冷热源系统组成的复合式空调系统,它不仅能够满足室内的温湿度要求,同时新风的引入提高了空气品质,辐射末端为使用大自然的低温冷源提供了可能。因此,此系统具有节省空间、提供新风、运行成本低、效果好和热舒适性良好的优点。毛细管辐射空调系统集供冷、供暖、新风于一体,同一套末端辐射系统运行达到夏天制冷冬天供暖的目的,通过自动控制系统调节室内的温湿度,提供新鲜空气。本文从复合空调的组成和工作原理出发,对热力学火用的提出,分析了毛细管平面辐射空调的节能潜力。复合系统在实际应用过程中,最主要解决的是辐射末端系统表面结露的问题,从结露的危害出发,对结露的原因和影响因素进行分析,最终得到在达到室内热舒适性稳定和不结露的前提下,系统高效节能的运行状态。结合苏州某别墅毛细管平面辐射空调的实际情况,对室内的温度数据进行测试和计算处理,得出室内温度分布和辐射吊顶供冷能力,以及在自动控制系统下室内的热舒适性,最后结合现代类经济评价法,采用投资回收期法对毛细管辐射空调系统进行经济评价,分析其优点及不足。
[Abstract]:With the development of the society, the improvement of people's living standard, the promotion of the national urbanization reform, and the rising area of air conditioning in residential and commercial buildings, the demand for indoor environment has become more and more high in recent years. Urban heat island effect is aggravated and haze weather lasts for a long time, so indoor temperature and air quality are also important aspects of air conditioning. Nowadays, energy and environment problems have become quite prominent. Energy saving and emission reduction is also a basic national policy to be carried out in every industry. In order to respond to this call, a kind of high efficiency, energy saving and thermal comfort air conditioning system, namely capillary plane radiation air conditioning system, is widely used. Traditional air conditioning in operation, there is no fresh air supply, leading to a decline in air quality, dry room, low operational efficiency, although the improved central air conditioning system indoor air quality can be improved. However, there are some disadvantages such as high system cost, trouble in maintenance, noise at the end of fan coil and room temperature control, etc. The capillary plane radiation air conditioning system is mainly composed of radiation terminal system. The compound air conditioning system composed of fresh air system and cold and heat source system can not only meet the indoor temperature and humidity requirements, but also improve the air quality with the introduction of fresh air. The radiation end provides the possibility for the use of nature's low temperature cold source. Therefore, the system has the advantages of saving space, providing fresh air, low operating cost, good effect and good thermal comfort. Capillary radiation air conditioning system integrates cooling, heating and fresh air, the same terminal radiation system operates to achieve the purpose of heating in summer, refrigeration and winter, and the indoor temperature and humidity are adjusted by automatic control system. In this paper, based on the composition and working principle of composite air conditioning, the thermodynamic exergy is put forward, and the energy saving potential of capillary plane radiation air conditioning is analyzed. The composite system is applied in practice. The main solution is the problem of condensation on the surface of the radiation terminal system. From the harm of the condensation, the causes and influencing factors of the condensation are analyzed, and finally, under the premise of achieving the stability of indoor thermal comfort and no condensation. The running state of the system is efficient and energy saving. Combined with the actual situation of a villa in Suzhou, the indoor temperature data were tested and calculated, and the indoor temperature distribution and radiation ceiling cooling capacity were obtained. And the indoor thermal comfort under the automatic control system. Finally, combined with the modern economic evaluation method, the economic evaluation of the capillary radiation air conditioning system is carried out by using the investment recovery period method, and its advantages and disadvantages are analyzed.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU831

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