Performance analysis of solar air cooled double effect LiBr/H2O absorption cooling system in subtropical city

被引：37
作者：
Li, Zeyu [1 ,2 ,3 ]
Ye, Xiangyang [1 ,2 ]
Liu, Jinping [1 ,2 ]
机构：
[1] S China Univ Technol, Sch Elect Power, Guangzhou 510640, Guangdong, Peoples R China
[2] Guangdong Prov Key Lab High Efficient & Clean Uti, Guangzhou 510640, Guangdong, Peoples R China
[3] State Key Lab Compressor Technol, Hefei 230031, Anhui, Peoples R China
来源：
ENERGY CONVERSION AND MANAGEMENT | 2014年 / 85卷
基金：
美国国家科学基金会;
关键词：
Solar cooling; Air cooled; Double effect absorption; Performance; Subtropical; REFRIGERATION; SINGLE; QUEENSLAND; WATER;
D O I：
10.1016/j.enconman.2014.05.095
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Due to the absence of cooling tower and independent on water, the air cooled solar double effect LiBr/H2O absorption cooling system is more convenient to be used in commercial building and household use. The performance with collector temperature is an important field for such system. The paper mainly deals with the performance with collector temperature for the solar air cooled double effect LiBr/H2O absorption cooling system in subtropical city. The parameters of system are: aperture area of collector array is 27 m(2), tilted angle of collector with respect to the horizontal plane is 20 toward to south evaporator temperature is 5 degrees C and the cooling capacity is 20 kW. The simulation is based on the meteorological data of monthly typical day which was summarized from a year round measured data. A corresponding parametric model was developed. The hourly and average performance with the collector temperature for monthly typical day was obtained and discussed. It was found that the suitable working range of inlet temperature of collector is 110-130 degrees C to improve performance and lower the risk of crystallization. The difference of hourly total efficiency in 9:00-16:00 is less, and the monthly total efficiency from May to October is approximate. The yearly performance of system including total efficiency, cooling capacity per area of collector and solar fraction was given. Furthermore, the effect of effectiveness of heat exchanger and pressure drop on total efficiency and solar fraction was studied and compared. The paper can serve as a preliminary investigation of solar air cooled double effect LiBr/H2O absorption cooling system in subtropical city, and provides the foundation of further study. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：302 / 312
页数：11
相关论文
共 38 条
[31]   New method for COP optimization in water- and air-cooled single and double effect LiBr-water absorption machines [J].
Marcos, J. D. ;
Izquierdo, M. ;
Palacios, E. .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2011, 34 (06) :1348-1359
[32]  
Meteorological information center of China meteorological reference Tsinghua university architecture technology department, 2005, CHIN BUILD THERM ENV
[33]   A computationally effective formulation of the thermodynamic properties of LiBr-H2O solutions from 273 to 500 K over full composition range [J].
Pátek, J ;
Klomfar, J .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2006, 29 (04) :566-578
[34]   A solar thermal cooling and heating system for a building: Experimental and model based performance analysis and design [J].
Qu, Ming ;
Yin, Hongxi ;
Archer, David H. .
SOLAR ENERGY, 2010, 84 (02) :166-182
[35]   Options for solar-assisted refrigeration - Trough collectors and double-effect chillers [J].
Tierney, M. J. .
RENEWABLE ENERGY, 2007, 32 (02) :183-199
[36]  
Vasilescu C, 2013, INT J REFRIG
[37]  
Xue D, 2006, REFRIGERATION TECHNO
[38]   Comparison between solar single-effect and single-effect double-lift absorption machines (Part I) [J].
Yattara, A ;
Zhu, Y ;
Ali, MM .
APPLIED THERMAL ENGINEERING, 2003, 23 (15) :1981-1992
1234