关于热声驱动器水冷却器传热和压降的讨论

DISCUSSION ON HEAT TRANSFER AND PRESSURE DROP OF THE COLD-END HEAT EXCHANGER IN THERMOACOUSTIC ENGINES

作为热声驱动器的核心部件 ,冷却器性能直接影响整机性能。为进一步提高其性能 ,对两种不同型式的水冷却器的性能进行实验比较并对其各自的热阻和流阻进行分析计算 ,为今后的改进提供了很好的借鉴。

The performance of the cold-end heat exchanger greatly effects the efficiency of the whole thermoacoustic engine system. Two kinds of cold-end heat exchanger are tested. The calculations of their thermoresistance and pressure drop are accomplished. By analysis an illustration to improve the performance of cold-end heat exchange is proposed.