Evaluation of standing-wave thermoacoustic cycles for cooling applications
Evaluation of standing-wave thermoacoustic cycles for cooling applications
复制标题
冷却应用的驻波热声循环评估
DOI：
10.1016/j.ijrefrig.2006.12.014
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
L. Mongeau
中科院分区：
文献类型：
--
作者：
I. Paek;J. Braun;L. Mongeau
从性能系数 (COP) 与可逆 COP 或 COPR 之比的角度研究了驻波热声冷却最有前途的应用。开发了基于热声模拟程序 DELTAE 的设计优化程序。该程序应用于两种驻波热声冷却器配置，以确定热侧和冷侧堆端温度之间各种温度跨度的最佳 COPR。研究发现，驻波热声冷却器的 COPR 随着温度范围的增加而增加，并在温度升高到 80°C 左右时达到最大值。对结果和损失的分析清楚地表明，这些系统的效率可能有利于制冷，但不适用于空调和低温冷却。根据迄今为止开发的各种热声冷却器的测量确定的 COPR 显示出类似的趋势，并且总体上支持优化结果。
The most promising applications for standing-wave thermoacoustic cooling were investigated from the perspective of the ratio of coefficient of performance (COP) to the reversible COP or COPR. A design optimization program based on the thermoacoustic simulation program known as DELTAE was developed. The program was applied to two standing-wave thermoacoustic cooler configurations in order to determine the best possible COPRs for various temperature spans between hot-side and cold-side stack-end temperatures. It was found that the COPR of standing-wave thermoacoustic coolers increases with temperature span and reaches a maximum for temperature lifts around 80°C. Analysis of the results and the losses clearly shows that the efficiency of these systems may be good for refrigeration, but not for air-conditioning and cryogenic cooling. The COPRs determined from measurements for various thermoacoustic coolers developed so far show similar trends, and generally support the optimization results.