节能2025，Vol.44Issue(12)：43-47,5.DOI:10.3969/j.issn.1004-7948.2025.12.010
最大有效功率和最大功率下内可逆Rallis循环的性能比较
Performance comparison of internal reversible Rallis cycles at maximum effective power and maximum power
摘要
Abstract
Based on the internally reversible Rallis cycle model,the performance characteristics of it under the effective power(Ep)target are studied,and the analytical formula of Ep is derived.The isothermal process expansion ratio(σ)is taken as the optimization variable to analyze the influences of compression ratio(ε),pressurization ratio(λ),pre-expansion ratio(ρ),and heat transfer loss(B)on the cycle performance.And compare the performance differences of the cycle under the Ep and power(P)targets.The results showed that the cyclic relationship curve between Ep and σ presents a parabolic shape,σ is the best value(σEp)make cycle Ep to achieve the maximum(Ep)max.The relationship curve between the cyclic Ep and efficiency(η)presents a twisted leaf shape that returns to the origin.When ε,λ and ρ increase while B decreases,(Ep)max and its corresponding efficiency(ηEp)increase.When other conditions are constant,the η corresponding to the maximum Ep of the cycle is greater than that corresponding to the maximum P.When Ep is selected as the objective function,the loop can achieve an efficiency improvement at the expense of less power.关键词
有限时间热力学/内可逆Rallis循环/有效功率/传热损失/性能比较Key words
finite-time thermodynamics/internal reversible Rallis cycles/effective power/heat transfer loss/performance comparison分类
能源科技引用本文复制引用
薛晓庆,戈延林,陈林根,冯辉君..最大有效功率和最大功率下内可逆Rallis循环的性能比较[J].节能,2025,44(12):43-47,5.基金项目
国家自然科学基金(项目编号:52171317) （项目编号:52171317）
武汉工程大学研究生教育创新基金项目(项目编号:CX2024409) （项目编号:CX2024409）
