摘要
提出一种高效的较大程度利用热源的新型太阳能吸收式循环系统 .与传统的两级吸收式循环相比 ,系统增加了一个附加高压发生器 ,通过高压发生器再生出的LiBr溶液与低压吸收器的吸收后的溶液混合 ,提高高压吸收器的吸收剂浓度从而减小其压力 .分析了混合循环的各种性能特性 ,并与传统的两级吸收式制冷循环进行比较 ,结果表明混合吸收式循环的发生热源在 80～ 95℃之间 ,热力系数在传统的两级吸收式循环基础上平均提高 2 0 % ,其热源可利用温差平均提高 2 0℃ 。
A refrigeration cycle of solar lithium bromide/water absorption was researched. The quantity of heat source could be utilized as possible as it could. The additional high pressure generator was used in the cycle. The lithium bromide solution flowing out from the high pressure generator was mixed with solution from low pressure absorber in order to increase lithium bromide solution concentration and decrease the pressure in the high pressure absorber. The performance of the cycle was analyzed and compared with traditional two stage absorption cycle. The theoretical analysis results showed that the temperature of heat source could be the same compared with the two stage absorption, the average chill COP was 20?% higher than that of the two stage absorption, and the average available temperature difference of heat source was about 20?℃ over that of two stage absorption.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第1期100-102,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
湖北省自然科学基金资助项目 (99JO32 )
