太阳能热能辅助蒸汽压缩式制冷循环理论与实验研究

项目名称： 太阳能热能辅助蒸汽压缩式制冷循环理论与实验研究

项目编号： No.51476099

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 能源与动力工程

项目作者： 代彦军

作者单位： 上海交通大学

项目金额： 80万元

中文摘要： 针对实现太阳能制冷效应稳定性和高效化难题，提出太阳能热能利用与蒸汽压缩制冷循环耦合的太阳能热能辅助制冷新方法。与传统太阳能制冷方式相比，提高了单位太阳能集热面积对应制冷转换效率，克服了太阳能制冷受辐射间歇性影响不能连续高效制冷的限制。项目研究将揭示太阳能热能直接作用于蒸汽压缩制冷循环，在动态运行模式下，辅助压缩机实现节能的能量转换过程机理；构建太阳能热能驱动吸收制冷与蒸汽压缩制冷循环匹配耦合，实现运行节能的优化方案；建立基于太阳能制冷效应的集热循环热效率因子分析模型，和太阳能热能辅助蒸汽压缩制冷循环涉及的集热温度、环境温度和制冷温度三热源条件下的系统热力学模型，研究系统变工况动态运行特性，分析获得集热器、压缩机、换热器和吸收器等部件结构和运行参数和最优匹配关系。研究工作有望发展一种太阳能制冷新方法，对于促进太阳能工程学与工程热力学的交叉融合发展，利用太阳能缓解夏季空调用电负荷都有积极意义。

中文关键词： 太阳能；空调；制冷；热力循环；能量转换

英文摘要： A novel solar thermal assisted vapor compression air conditioning cycle is proposed, aiming at improving the conversion efficiency from solar energy to cooling and offset the unstability of solar energy utlization. Compared with the traditional solar cooling measures, the novel cycle may increase the specific cooling outout for unit solar collector area and realize the steady cooling output despite of the big variation of solar radiation. It is expected that the mechanisms how the solar thermal can assist the vapor compression refrigeration cycle under dynamic operation mode will be investigated. Also studied is the efficient integration of solar absorption cooling section with vapor compression process under steady operation mode. The solar combined aborption and vapor compression air conditiong cycle will be intensively studied and optimized.A theoretical model derived from the thermal efficiency factor of solar collectors will be developed in consideration of the demand for effecting solar cooling process. The thermodynamic process operated under three temperature levels, namely, the solar collector temperature, the ambient temperature and the refrigeration temperature, will be evaluated and thermodynamically optimized. Moreover,the transient performance of the novel solar air conditioning system will be the core work for energy saving, the matching of configuration and operation parameters for the components, such as solar collecotrs, compressor, heat exchangfer and expansion valves, et al., as well as the impacts of the different parameters on the system performance, will be studied. The activities are helpful for developing a novel solar cooling technology, and could push the joint development of the principle of solar energy utlization and the thermodymanic theory. It will also pave a new way for releaving the sumer peak electric suppply for air conditioning.

英文关键词： solar energy;air conditioning;cooling;thermodynamic cycle;energy conversion