Further analysis of the effect on the refrigeration coefficient with the superheat of the refrigeration cycle;
制冷循环的过热对制冷系数影响的探讨
The effect on the ratio of refrigeration coefficient with the super-cooling of the refrigeration cycle;
制冷循环的过冷对制冷系数比值的影响
Based on the principles of classic thermo-dynamics,the paper has a therotical research in refrigeration coefficient of the ideal reversible Garnotcycle and the actual irreversible cycle.
从经典热力学的基本理论出发,对理想可逆卡诺循环和实际不可逆卡诺循环的制冷系数进行了理论研究,证明了理想可逆卡诺循环的制冷系数是最高系数,分析了实际情况下制冷系的制约因素,为提高制冷系数提供了理论指导。
Optimization of cooling load and COP for an irreversible Brayton refrigerator with variable temperature heat reservoirs;
变温热源不可逆布雷顿制冷循环制冷率和制冷系数优化
The analytical formulae about cooling load,COP(coefficient of performance),exergy loss rate,exergy output rate and ecological criterion of the irreversible refrigeration cycle are derived.
用有限时间热力学理论和方法分析了热漏、热阻和其它不可逆性对定常流普适制冷循环模型性能的影响,导出了由两个绝热过程、两个等热容吸热过程和两个等热容放热过程组成的不可逆制冷循环的制冷率、制冷系数、火用损失率、火用输出率和生态学性能,并由数值计算分析了循环过程对循环性能的影响特点。
The analytical formulae about cooling load,COP,exergy loss rate,exergy output rate and ecological function of the endoreversible universal steady-flow refrigeration cycle consisting of one heating branch,one cooling branch and two adiabatic branches with heat resistance loss are derived.
用有限时间热力学方法分析了一类普适定常流内可逆制冷机循环,导出了存在传热损失时,由一个吸热过程、一个放热过程和两个绝热过程组成的一类普适的定常流内可逆制冷机循环的制冷率、制冷系数、损失率、输出率和生态学性能,并由数值计算分析了循环过程对循环性能的影响特点。
Quantum degeneracy effect on the coefficient of performance from a Stirling refrigeration cycle;
量子简并对斯特林制冷循环制冷系数的影响
The influence of coefficient of performance(COP) and quantity of refrigeration(Qref)were investigated with evaporating temperature and final desor.
采用不同浓度磷酸溶液浸渍法改性ZSM-5沸石分子筛,测定温度为303 K时不同浓度改性试样的饱和吸附量,筛选出最佳改性试样并测定其吸附等温线;在此基础上对最佳改性试样进行制冷性能预测,采用D-A方程简略式进行吸附制冷模拟仿真,探讨冷凝温度、脱附温度对系统制冷系数(COP)及制冷量(Qref)的影响。
The experiment results show that the temperature difference between inlet and cold air outlet, the unit refrigeration and the coefficient of performance increases with the increase of the length of vortex tube under the same cold fraction with ambient temperature and inlet pressure of 0.
5Mpa的情况下,相同冷流率时,随着热端管长度的增加,涡流管的制冷温度效应、单位制冷量和制冷系数增加,而其制热温度效应无显著的规律;对同一热端管长的涡流管,随着冷流率的增加,涡流管的制冷温度效应、单位制冷量和制冷系数增加,且在冷流率为40%-50%时出现峰值,而制热温度效应随冷流率的增加而增加,在冷流率范围内未出现峰值。
According to modulation index value,the scheme have three modes in whole district: linear modulation mode,overmodulation modeⅠ and overmodulation mode Ⅱ.
该控制策略将整个控制区域按照调制系数的大小分成三种工作模式,线性调制模式、过调制模式Ⅰ和过调制模式Ⅱ。
Two control methods to balance the voltage of capacitors of three--level voltage source inverter by the differentphase--shift angle and by the different modulation index of switching function on positive and negative half wave are proposed.
提出了两种均衡三级电压源逆变器直流侧电容电压控制方法 ,并进行比较 ,认为开关函数正负半波采用不同的移相角的控制方法与采用不同的调制系数的控制方法 ,都可以达到均衡三级电压源逆变器直流侧电容电压的目的 ,且后者更为可靠。
Further analysis of the effect on the refrigeration coefficient with the superheat of the refrigeration cycle;
制冷循环的过热对制冷系数影响的探讨
Optimization of cooling load and COP for an irreversible Brayton refrigerator with variable temperature heat reservoirs
变温热源不可逆布雷顿制冷循环制冷率和制冷系数优化
Research on the change of Refrigeration Coefficient with the temperature of Condensation and vaporization;
冷凝及汽化温度的变化对制冷系数影响的研究
Analysis of Gains and Losses of Shared Cold Storage Refrigeration System in Terms of the Influence of ‘Partial Relief’ on Refrigerating Efficiency;
从“部分卸载”对制冷系数的影响看冷库兼冷的利与弊
In this paper we thought about the influence of all factors of thermal resistanceand derived the relation between the optimal performance coefficient and the refrigerationrate for Slirling refrigerators.
在考虑了全部热阻影响的条件下,导出了斯特林制冷机的最佳制冷系数和制冷率之间的关系。
Experimental test and Further Analysis of the Refrigerant Coefficient of Steam Condense Refrigerant Machine;
蒸汽压缩式制冷机的制冷系数实验测试及其探讨
The way to increase the performance coefficient was pointout, a practical refrigerator was provided with more precise guide meaning.
指出了提高制冷系数的途径,对实际制冷机设计具有更准确的指导意义。
Dynamic characteristics analysis for condenser of refrigeration system with digital scroll variable capacity
数码涡旋变容制冷系统冷凝器动态特性分析
Development of Refrigeration Engineering Parametric Design System;
制冷成套工程参数化设计系统的开发
Digital Rib-bend Robot Control System Design and Implement;
数控肋骨冷弯机控制系统设计与实现
Theoretical investigation on inner parameters of auto-cascade refrigeration system
自复叠制冷系统内部参数的理论研究
The Relation Between Optimal Coefficient of Performance and Rate of Refrigeration of A Absorption Cycle
吸收式制冷循环的最佳热力系数与制冷率间的关系
Analyses the effects of variable condenser water flow on COP of centrifugal chillers.
分析了冷却水变流量对离心式制冷机性能系数的影响;
The Research on Control System of Numerical Control Frame Bending Machine Based on LabVIEW;
基于LabVIEW的数控肋骨冷弯机控制系统的研究
Determination Of Friction Factors Of The Caplillary Tube In Refrigerating Machines Based On Experiments;
基于试验的制冷机节流管沿程阻力系数的确定
Improved Algorithm Methods in Parameters Distinction of Diaphoresis cooling Control System;
发汗冷却控制系统参数辨识的几种改进算法
DESIGN OF TESTING AND AUTOMATIC CONTROL SYSTEM OF COLD STORE IN LABORATORY
低温实验冷库数据采集和控制系统设计
Design of Data Acquisition System in Lifetime Experiment of Spaceborne Refrigerator
空间制冷机寿命试验数据采集系统设计
