|Table of Contents|

Feasibility Study of Absorption Refrigeration System Based on Solar Energy Waste Heat Utilization(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2022年03期
Page:
9-14
Research Field:
动力工程及工程热物理
Publishing date:

Info

Title:
Feasibility Study of Absorption Refrigeration System Based on Solar Energy Waste Heat Utilization
Author(s):
Zhu Yixiu; Xia Yi; Dai Chunxiang
(School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210023,China)
Keywords:
solar water heating system; water tank temperature; TRNSYS; absorption refrigeration system; performance index
PACS:
TU822
DOI:
10.3969/j.issn.1672-1292.2022.03.002
Abstract:
The relevant parameters of a vacuum heat pipe solar water heating system in a commercial building in Nanjing are tested. Under the average irradiation intensity of 614.2 W/m2,the average heat collection efficiency of the collector can reach 45%. The 8 m3 hot water storage tank absorbs a total of 653 MJ Heat,after being heated for 4 hours,the temperature of the water tank increases from 63.8 ℃ to over 80 ℃,reaching the driving heat source temperature of a single-effect lithium bromide absorption refrigeration unit,which proves the feasibility of the system using absorption refrigeration to utilize solar waste heat. On this basis,the TRNSYS software is used to build a simulation model of the lithium bromide absorption refrigeration system,and predict and analyze the operation performance of the absorption refrigeration system under the irradiation conditions on the day of the experiment. The results show that the absorption refrigeration system can run stably for 5 hours without an auxiliary heat source,that the average value of the system performance coefficient COP is 0.66,and that the average cooling capacity is 9.41 kW. It has certain reference value for the feasibility study of solar energy waste heat used in absorption refrigeration in other regions.

References:

[1]胡志鹏,刘华凯,郝占栋. 一种太阳能热辅助溴化锂吸收式制冷机组空调系统的应用研究[J]. 制冷与空调(四川),2020,34(4):477-480.
[2]BELLOS E,TZIVANIDIS C. Energetic and financial analysis of solar cooling systems with single effect absorption chiller in various climates[J]. Applied Thermal Engineering,2017,126:809-821.
[3]SHIRAZI A,TAYLOR R A,WHITE S D,et al. A systematic parametric study and feasibility assessment of solar-assisted single-effect,double-effect,and triple-effect absorption chillers for heating and cooling applications[J]. Energy Conversion and Management,2016,114:258-277.
[4]CASCALES J,GARCÍA F,IZQUIERDO J,et al. Modelling an absorption system assisted by solar energy[J]. Applied Thermal Engineering,2011,31(1):112-118.
[5]李靖,朱川生,李华山,等. 采用不同集热器的太阳能吸收式制冷系统经济性分析[J]. 新能源进展,2018,6(5):379-386.
[6]CHEN J F,DAI Y J,WANG R Z. Experimental and analytical study on an air-cooled single effect LiBr-H2O absorption chiller driven by evacuated glass tube solar collector for cooling application in residential buildings[J]. Solar Energy,2017,151:110-118.
[7]FRANCIS A,IAN K,MICHAEL R. Design and experimental testing of the erformance of an outdoor LiBr/H2O solar thermal absorption cooling system with a cold store[J]. Solar Energy,2010,11(9):735-744.
[8]马瑞,谢应明,庄雅琪. 小型太阳能吸收式空调系统的仿真研究[J]. 热能动力工程,2019,34(2):132-136,156.
[9]ANDREA B,FRANCIS A. Modeling and simulation of a small-scale solar-powered absorption cooling system in three cities with a tropical climate[J]. International Journal of Low Carbon Technologies,2020,15(1):1-16.
[10]GRECO A,MASSELLI C. Dynamic investigation of a solar absorption cooling system in naples[J]. Tecnica Italiana—Italian Journal of Engineering Science,2020,64(2):277-283.
[11]ROSIEK S,BATLLES F J. Integration of the solar thermal energy in the construction:Analysis of the solar-assisted air-conditioning system installed in CIESOL building[J]. Renewable Energy,2009,34(6):1423-1431.
[12]王建辉,刘自强,周泉,等. 小型太阳能溴化锂吸收式制冷系统实验研究[J]. 中国高新技术企业,2016,(3):13-14.
[13]李悦,翟晓强,尹亚领,等. 基于辐射供冷的太阳能吸收式空调试验研究[J]. 可再生能源,2012,30(6):5-8.
[14]赵明海,洪仁龙,陶海臣,等. 溴化锂吸收式制冷机在太阳能领域的应用与前景[J]. 流体机械,2014,42(6):84-86.

Memo

Memo:
-
Last Update: 2022-09-15