Local stability analysis of a low-dissipation cyclic refrigerator

来源 :理论物理通讯(英文版) | 被引量 : 0次 | 上传用户:num184015922
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We study the local stability near the maximum figure of merit for the low-dissipation cyclic refrigerator,where the irreversible dissipation occurs not only in the thermal contacts but also the adiabatic strokes.We find that the bounds of the coefficient of performance at a maximum figure of merit or maximum cooling rate in the presence of internal dissipation are identical to those in the corresponding absence of internal dissipation.Using two different scenarios,we prove the existence of a single stable steady state for the refrigerator,and clarify the role of internal dissipation on the stability of the thermodynamic steady state,showing that the speed of system evolution to the steady state decreases due to internal dissipation.
其他文献
The infinite derivative theory of gravity is a generalization of Einstein gravity with many interesting properties,but the black hole solutions in this theory are still not fully understood.In the paper,we concentrate on studying the charged black holes i
基于广州北站综合交通枢纽一期广清城际铁路广州北站站房工程,对在既有广铁九号线旁进行基坑开挖的影响进行研究.根据工程与地铁的位置关系、周边环境、地质条件以及施工工序等,利用三维有限元软件建模,对照基坑墙顶水平位移、地表沉降等工程监测数据分析与评估广清城际广州北站站房工程施工对周围环境产生的各种影响.研究发现,墙顶水平位移相对较大的点位往往位于基坑围护的中部,较小的点位往往位于基坑围护的角点部位,基坑的时序开挖会引起周围土体位移场和应力场的叠加增大,因此基坑开挖时的后开挖区域往往是基坑的最大影响区,地表沉降与
We consider the(2+1)-dimensional nonlinear Schr?dinger equation with power-law nonlinearity under the parity-time-symmetry potential by using the Crank-Nicolson alternating direction implicit difference scheme,which can also be used to solve general bound
针对地质不良区域有轨电车嵌入式轨道结构可能出现的工后路基不均匀沉降问题,建立了嵌入式轨道结构有限元模型.通过优化轨道结构参数,探究了路基不均匀沉降作用下轨道结构受力及变形规律,确定了轨道结构参数的合理变化范围.结果 表明:轨道板中心区混凝土应力随轨道板长度增加而增大,轨道板长度不宜大于5.6m;轨道板侧边混凝土应力随轨道板宽度增加而增大,轨道板宽度宜取2.2~2.6m;在满足结构配筋率的前提下,可适度增大注浆孔直径为0.8m及以上,注浆孔中心距不宜大于2.6m.该研究成果可以为地质条件不良区域有轨电车线路
The fidelity of DNA transcription catalyzed by RNA polymerase (RNAP) has long been an important issue in biology.Experiments have revealed that RNAP can incorporate matched nucleotides selectively and proofiead the incorporated mismatched nucleotides.Howe
Single-layer MoSi2N4,a high-quality two-dimensional material,has recently been fabricated by chemical vapor deposition.Motivated by this latest experimental work,herein,we apply first principles calculations to investigate the electronic,optical,and photo
Research on flow and heat transfer of hybrid nanofluids has gained great significance due to their efficient heat transfer capabilities.In fact,hybrid nanofluids are a novel type of fluid designed to enhance heat transfer rate and have a wide range of eng
The(2+1)-dimensional Boiti-Leon-Manna-Pempinelli(BLMP)equation is an important integrable model.In this paper,we obtain the breather molecule,the breather-soliton molecule and some localized interaction solutions to the BLMP equation.In particular,by empl
In Minkowski space M,we derive the effective Schr?dinger equation describing a spin-less particle confined to a rotating curved surface S.Using the thin-layer quantization formalism to constrain the particle on S,we obtain the relativity-corrected geometr
Strong electromagnetic fields produced in the non-central heavy-ion collisions can induce vector meson photoproduction.In this paper,we study the photoproduction J/ψ and φ mesons in the relativistic heavy-ion collision from ultra-peripheral nuclear collis