导　　师： 唐黎明;葛方根

学科专业： 080702

授予学位： 硕士

作　　者： ;

机构地区： 浙江大学

摘　　要： 现阶段由于全球能源问题的日益突出,节能环保成为生产实践中一个重要的研究课题。国际背景下,为生产生活提供多元和高效的清洁能源,改善严峻的环境污染的情况,以及天气异常的现状,同时解决能源短缺的问题,是二十一世纪能源行业必须完成的使命。虽然太阳能吸系统因其通过利用太阳能而非电能,从而能够明显而有效减少二氧化碳的排量,并且因为夏季太阳能资源丰沛的季节优势,能同时缓解电力的峰谷差。但太阳能吸收系统具有系统稳定性比较差以及机组效率不高的缺陷,在应用受到限制。本论文中讨论的太阳能驱动吸收—压缩复合系统能够有效避免传统吸收系统和传统压缩系统的缺陷,发挥了两个子系统的优势。 本课题为了验证太阳能驱动吸收——压缩复合热泵系统的有效性及实用性,在该太阳能驱动吸收—压缩复合系统实验台上展开相关研究工作。 主要研究内容如下： /(1/)阐述了传统机械热泵系统优势和缺点,以及太阳能、余热废热的应用情况。探讨了太阳能的应用现状,分析得出吸收——压缩复合系统的优势,介绍了吸收-压缩混合系统的国内外研究现状。 /(2/)阐述了冬季和夏季吸收——压缩复合系统的多种运行模式,介绍了该太阳能驱动吸收——压缩复合系统的工作流程、实验台设备的选型等。 /(3/)吸收子系统通过过冷蒸发器与压缩子系统耦合,通过过冷压缩子系统制冷剂来提高复合系统的性能。因此,研究了影响吸收子系统性能的外界条件。通过分析,得出了外界条件对吸收子系统性能的影响规律。 /(4/)通过实验,研究了这些外界条件对系统性能的影响并总结其影响规律。 Due to the fact that the global energy crisis is getting more serious in the current period, efficient and environmental friendly energy has become an essential research subject in the practice of production nowadays. The supply and demand chain of current global energy market emphasize a series of characteristic such as diversification, cleanness, efficiency and globalization in order to better deal with the increasingly severe global problems such as shortage of energy, environment pollution, abnormal climate and etc. Due to the seasonal advantages, the solar absorption heat pump can greatly reduce the carbon emission and help relieve the difference between the peaks of electric power. However, the solar absorption heat pump also has its disadvantages of low efficiency and unstable operation. This article would discuss how the solar driven hybrid absorption//compression system combines the respective advantages of absorption subsystem and compression subsystem. This research is to verify the efficiency and practicality of the absorption//compression hybrid driven by solar heat pump system, and further study on the relative issue of new type heat pump system test bench. The major content of research is as below: 1.Illustrations of the advantages and disadvantages of the traditional mechanical heat pump system and the application of the solar power, residue heat and wasted heat. Obtain the signification of the absorption//compression hybrid heat pump system by analysis, and introduce the current domestic and foreign backgrounds of the absorption//compression hybrid heat pump system。 2.Illustrations of the multi-operation mods of the summer//winter absorption//compression hybrid system, calculation of the efficiency of the heat power of the new type absorption//compression hybrid cooling//heating cycle, analysis of the changes of the energy the absorption subsystem generates, when the temperature of cooling water, hot water and R22changes. 3.By means of condenser//evaporator, the coupling of absorption subsystem with compression subsystem would improve the performance of the hybrid system via the refrigerant of the cold compression subsystem. Therefore, analyze the external conditions which can influence the performance of the absorption subsystem:the out- let temperature for refrigerant water, the temperature of the heated water, the inlet temperature for refrigerant R22, the flow rate of both the cooling water and R22. Apart from these above, the fouling factor would also influence the performance of the unit system. 4.Through experiments, analyze the influences of the external conditions on the performance of the system, and summarize the regular pattern of these influences.

关 键 词： 过冷蒸发 吸收循环 外界条件 复合循环 实验研究 性能

分 类 号： [TK513]

领　　域： [动力工程及工程热物理]