夏热冬冷地区多能互补溶液除湿空调系统优化  

Optimization of multi-energy complementary liquid desiccant air conditioning system in hot summer and cold winter areas

作　　者：彭冬根[1] 陈敬[1] 李寅蒂 PENG Donggen;CHEN Jing;LI Yindi(School of Infrastructure Engineering,Nanchang University,Nanchang 330031,Jiangxi Province,China)

机构地区：[1]南昌大学工程建设学院,江西南昌330031

出　　处：《化学工程》2024年第9期8-13,共6页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(51766010);南昌市高效制冷技术创新团队(2018-CXTD-004)。

摘　　要：为缓解基于太阳能-地热能(太-地)互补利用的溶液除湿空调系统在夏热冬冷地区中长期运行后土壤温度产生较大波动导致系统能效降低的问题。提出一种太阳能-地热能-空气能(太-地-空)多能互补的溶液除湿空调系统,针对该系统采用的过渡季节和制热季节补热方式对土壤温升及系统能效进行研究。结果表明:太-地互补系统运行20 a后土壤温度上升18.3℃,新系统在过渡补热和制热季节补热2种方式下运行20 a期间土壤温度无大幅波动;太-地系统运行20 a后机组制冷和系统全年性能系数C_(OP)分别下降30.5%和24.5%,太-地-空系统则在20 a的运行期间内均稳定在额定值。由研究结果可知,太-地-空多能互补的溶液除湿空调系统采用过渡季节补热的方式不会出现土壤热不平衡性问题,系统更能够长期稳定运行。In order to alleviate the problem of the reduction in system energy efficiency caused by large fluctuations in soil temperature after the medium-term operation of the liquid desiccant air conditioning system based on the complementary utilization of solar-geothermal energy in hot summer and winter areas,a liquid desiccant air conditioning system with complementary solar-geothermal-air multiple energy was proposed.The effects of complementary heating in the transitional season and in the heating season on the soil temperature rise and system energy-efficiency were studied.The results show that the soil temperature rises by 18.3℃after 20 a of operation of the solar-geothermal complementary heating system,while the soil temperature of the new system has not obvious fluctuation during the 20 a of operation under two ways of complementary heating in the transitional season and the heating season.After 20 a of operation,the coefficient of performance C_(OP) of unit refrigeration and the system annual C OP for the solar-geothermal complementary system decrease by 30.5%and 24.5%,respectively,while these of the new system are stable in the rated values.The liquid desiccant air conditioning system based in the solar-geothermal-air multiple energy does not have the problem of soil thermal unbalance and can operate stably for a long time from the research results.

关 键 词：空调系统 运行优化 土壤温度 系统性能 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]