基于最大生态学有效功率的内可逆Otto循环性能比较分析  

Performance comparative analyses for an endoreversible Otto cycle at maximum ecological efficient power

作　　者：徐子健 戈延林 陈林根 齐丛正 吴迪 XU Zijian;GE Yanlin;CHEN Lingen;QI Congzheng;WU Di

机构地区：[1]武汉工程大学热科学与动力工程研究所,湖北武汉430205 [2]湖北省绿色化工装备工程技术研究中心,湖北武汉430205 [3]武汉工程大学机电工程学院,湖北武汉430205

出　　处：《节能》2024年第10期52-55,共4页Energy Conservation

基　　金：国家自然科学基金(项目编号:52171317、51779262)。

摘　　要：基于有限时间热力学理论和内可逆Otto循环模型,将生态学有效功率引入Otto循环的性能优化中,研究循环在生态学有效功率目标下的性能特性。通过数值算例,探究生态学有效功率与功率、效率和压缩比之间的关系,分析最大温比和传热损失对生态学有效功率性能的影响,比较循环在最大生态学有效功率、最大功率、最大效率、最大有效功率和最大生态学函数条件下的功率、效率、有效功率和熵产率等性能指标。结果显示,生态学有效功率与压缩比的关系曲线呈类抛物线形,生态学有效功率与效率和功率的关系曲线均呈扭叶形;传热损失越大,最大生态学有效功率及其对应的最佳压缩比和效率越小,最大生态学有效功率对应的功率越大;最大温比越大,最大生态学有效功率及其对应的最佳压缩比、功率和效率越大;与其他性能准则相比,最大生态学有效功率准则更能体现功率、效率和熵产率的折中。Based on the finite time thermodynamics and the endoreversible Otto cycle model,this paper introduces ecological efficient power into the performance optimization of the Otto cycle,and studies the cycle performance under the maximum ecological efficient power.The relationships among the ecological efficient power and compression ratio,power and efficiency are derived by detailed numerical examples,and the effects of the maximum temperature ratio and heat transfer loss on the ecological efficient power performance are analyzed.The cycle performance indicators which include the power,efficiency,efficient power and entropy generation rate under the maximum ecological efficient power,the maximum power,the maximum efficiency,the maximum efficient power and the maximum ecological function are compared.The results show that the characteristic curve of the ecological efficient power versus compression ratio is parabolic-like one,the characteristic curve of the ecological efficient power versus efficiency are loop-shaped one.When the heat transfer loss increases,the maximum ecological efficient power and the corresponding optimal compression ratio and efficiency decrease,while the power corresponding to the maximum ecological efficient power increases.When the maximum temperature ratio increases,the maximum ecological efficient power and the corresponding optimal compression ratio,power and efficiency increase.Compared with other characteristic criteria,the maximum ecological efficient power criteria can better reflect the compromise among the power,efficiency and entropy generation rate.

关 键 词：内可逆Otto循环 生态学有效功率 有限时间热力学 最优性能 

分 类 号：O414.1[理学—理论物理]