直线压缩机驱动的超高温双作用行波热声热泵  

Double-acting traveling-wave thermoacoustic heat pump for high-temperature range driven by linear compressor

作　　者：童欢[1,2] 罗二仓[1] 

机构地区：[1]中国科学院低温工程学重点实验室,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《低温工程》2012年第4期18-23,共6页Cryogenics

基　　金：国家自然科学基金重大项目(No.50890181);国家科技部基础研究项目(2010CB227303)支持

摘　　要：提出了一种直线压缩机驱动下的高温双作用行波热声热泵流程,并以kW级别的热泵系统进行了设计和优化。在热泵热端温度为150℃,环境温度为40℃时,计算模拟了其在不同回热器结构以及不同换热器结构下的性能。得出当回热器采用板叠式回热器,换热器采用管壳式换热器时能够获得较高的效率和较大的泵热量,获得的热端泵热量可达1 823.9 W,热泵系数COP为3.16,相对卡诺效率为82.3%。在此基础上,进一步计算了热泵在不同环境温度和不同热端温度下的工作性能,以模拟工业上热泵在不同环境下的工作状况。A novel thermoacoustic heat pump driven by linear compressor was proposed, which can be used for high-temperature range above 100 ℃. As a case of study, such a kW-class system was designed and optimized by using the DeltaEc code to simulate the performance of heat pump under different structures of regenerator and heat exchanger. In the simulation, the hot-end and cold-end temperatures were set to be 150 ℃ and 40 ℃ respectively. The study shows that the relative Carnot efficiency of the heat pump can reach its highest level when the regenerator adopts stack-type configuration and heat exchanger uses shell- tube typeconfiguartion. In the simulation, the heat pump can achieve pumping heat of 1 823.9 W, a COP of 3.16 and the relative Carnot efficiency of 82.3%. Furthermore, the performance of designed heat pump operating with different cold-end and hot-end temperatures was analyzed.

关 键 词：高温热泵 双作用 行波 热声转换 

分 类 号：TB657[一般工业技术—制冷工程]