摘要
分析热声发动机的循环过程,导出复指数传热规律下不可逆热声发动机的输出功率与温比、火用效率与温比的表达式,寻求了不可逆程度因子及热漏率对输出功率和火用效率的影响。结果表明:不可逆程度因子和复指数的虚部对发动机的输出功率影响较大,而火用效率虽然既受到不可逆程度因子的影响也受到热漏率的影响,但复指数虚部的取值变化对火用效率无关。
It is analysized the circulating process of thermoacoustic engine. And under the condition of complex exponential heat transfer law, it is obtained the expression of irreversible thermoacoustic engine for output power and temperature ratio, exergy efficiency and temperature ratio. It is concluded that the irreversible factors and heat leakage rate has influence on output power and exergy efficiency; irreversible factors and complex exponential imaginary have great effect on output power of engine. However, although both irreversible factors and heat leakage rate have effect on exergy efficiency, complex exponential imaginary value range donrt depend on the exergy efficiency.
出处
《青岛科技大学学报（自然科学版）》
CAS
2015年第4期423-426,431,共5页
Journal of Qingdao University of Science and Technology:Natural Science Edition
基金
国家自然科学基金资助项目(51176143)
研究生教育创新基金项目(CX2014029)
关键词
热声发动机
不可逆程度因子
热漏率
火用效率
thermoacoustic engine
irreversible factor
heat leakage rate
exergy efficiency
