Feynman棘轮制冷机的最大χ性能系数判据
Coefficient of performance at maximum χ-criterion for Feynman ratchet as a refrigerator
摘要:
χ标准被定义为能量转换效率和工作物质每单位时间吸收的热量的乘积[de Tomás等人,E,85(2012)010104(R)]。优化了Feynman棘轮制冷机在两个热浴间工作时的χ判据。研究了Feynman棘轮在大温差和小温差下的最大χ准则性能系数的渐近解。提出了一个与数值解吻合较好的插值公式。此外,还研究了性能系数在最大χ处普适性的充分条件.
英文摘要:
The χ-criterion is defined as the product of the energy conversion efficiency and the heat absorbed per-unit-time by the working substance [de Tomás et al., Phys. Rev. E, 85 (2012) 010104(R)]. The χ-criterion for Feynman ratchet as a refrigerator operating between two heat baths is optimized. Asymptotic solutions of the coefficient of performance at maximum χ-criterion for Feynman ratchet are investigated at both large and small temperature difference. An interpolation formula, which fits the numerical solution very well, is proposed. Besides, the sufficient condition for the universality of the coefficient of performance at maximum χis investigated.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。