流体机械

2008, No.434(08) 62-65

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太阳能喷射制冷系统在中原地区的性能分析
Performance Analysis on Solarefector Cooling System in the Zhong-yuan Region

郑慧凡;范晓伟;李安桂;魏静;
ZHENG Hui-fan1,2,FAN Xiao-wei2,LI An-gui1,WEI JING2(1.Xi'an University of Architecture,Xi'an 710055,China;2.Zhongyuan Institute of Technology,Zhengzhou 450007,China)

摘要(Abstract):

通过建立系统性能分析模型,结合中原地区典型气象日的气象条件,了解了太阳能喷射制冷系统在中原地区的运行特性,计算并分析了发生温度、蒸发温度和冷凝温度改变时系统COP0的变化情况。研究表明,在研究参数范围内,喷射系统COP随发生温度和蒸发温度的增加而增加,随冷凝温度的增加而减小,系统综合COP0随时刻呈先上升后下降的趋势,最大可达0.33。进一步针对中原地区200m2的别墅,计算了当集热面积为40m2时的太阳能喷射系统的供冷情况,结果表明,在8:00~16:00之间,太阳能喷射系统可以为别墅提供80%以上的冷量。
A simulation program of the solar ejection system performance was established,combining the climate character of the zhongyuan region,the hourly performance of the solar ejector cooling system was studied.Under different generator temperature,condenser temperature and evaporator temperature,the COP0 of solar ejector cooling system was analyzed.It is found that COP0 of ejector system increases with the increasing of generator temperature and evaporation temperature and decreases with the increasing of condensing temperature.Calculation of the COP0 shows that system COP0 increase first and then decline by the time sequence,and the biggest COP0 of system can reach 0.33.when the evacuated tube collector area equals to 40 and the villa area equals to 200,it is determined that the solar ejector cooling system can supply 80 percent cooling load for the villa during the hours(8:00~16:00)in the zhongyuan region.

关键词(KeyWords): 太阳能;HFC134a;喷射制冷系统;性能参数
solar energy;HFC134a;ejector cooling system;COP

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基金项目(Foundation): 河南省重点科技攻关项目(72102360050);; 建设部2007科学技术开发研究项目(2007-K1-29)

作者(Author): 郑慧凡;范晓伟;李安桂;魏静;
ZHENG Hui-fan1,2,FAN Xiao-wei2,LI An-gui1,WEI JING2(1.Xi'an University of Architecture,Xi'an 710055,China;2.Zhongyuan Institute of Technology,Zhengzhou 450007,China)

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