以制冷系数为目标函数，对制冷循环系统的性能进行优化分析。
The coefficient of performance is taken as an objective function. The performance of the refrigeration system is optimized.
了解分析影响各种制冷循环的制冷系数的主要因素及提高制冷系数的途径。
Acknowledge the main factors which have influence on coefficient of performance of refrigeration cycle and the way to improve it.
制冷量与制冷系数变化趋势的交叉点处为压缩机发挥最佳制冷性能的控制点；
Refrigerator oil having viscosity corresponded to the cross point of refrigerating capacity curve and refrigerating coefficient curve was the optimum product to obtain optimal refrigeration effect.
导出以理想气体或范德瓦耳斯气体为工质的制冷机最佳制冷系数与制冷率间的关系。
The relation between the optimal coefficient of performance and the rate of refrigeration of a Carnot refrigerator for an idea or van der Waals gas as a working fluids(?)derived.
其次，从基本优化关系式出发，对单位面积制冷负载随制冷系数变化的曲线做详细的研究。
Secondly, the curves of the cooling load per unit heat-transfer area varying with the coefficient of performance are investigated based on the fundamental optimum relation.
本文的主要目的是研究远洋船舶制冷剂替代过程中，非共沸混合制冷剂发生泄漏后对系统的制冷系数和制冷量的影响。
The purpose of this paper is to analyze the change of COP and capacity after the leakage of the non-azeotropic mixing refrigerant in marine refrigeration systems.
本文分析传统采用制冷系数（EER）作为节能指标的不准确性，提出采用（?）效率作为衡量制冷装置在不同工况下运行的节能指标。
This paper shows that the energy efficient ratio(EER)is not suited to be the index of refrigeration conditions and adopts the energetic efficiency as the index of energy conservation.
在设定实验工况下，压缩机制冷系数的实测值仅为2.14，与单相流体排热系统相比，辐射器面积减少22.8%，系统重量则增加了7.5%。
The measured results indicate that the compressor COP is 2.14, which results in a 22.8% reduction of the radiator area, and an 7.5% increase system weight compared the single-phase fluid system.
空调制冷上的燃油消耗问题、风阻系数也会影响到车辆的油耗。
The air conditioning refrigeration fuel consumption, the drag coefficient will affect the vehicle's fuel consumption.
氧化钒薄膜作为非制冷红外探测器的热敏材料，要求具有高的电阻温度系数(TCR)与合适的电阻值，以满足器件的应用。
As the detecting material of uncooled infrared detectors, vanadium oxide (VOX) thin films need high temperature coefficient of resistance (TCR) and suitable film resistance for using of the device.
降低冷却水进口温度和提高其质量流量不仅有利于提高制冷性能系数，而且能降低最佳高压侧压力。
Reducing the inlet temperature of cooling water and increasing its mass flow are favorable to increase refrigerant performance coefficient, and can decrease optimal pressure at high pressure side.
本文针对无回热且进口处制冷剂为过冷液体的节流管介绍确定其沿程阻力系数的两种方法。
The article focuses on two ways to determine friction factors of the capliliary tube without backheating which inlet refrigerant is subcooling liquid.
针对九种不同的测试方法，理清所有的影响因素对制冷量的传递关系，分析得出反映传递关系的灵敏系数，初步建立分析不确定度的模型。
Aim at all the tests, deduce the sensitivity coefficients reflecting the transfer relation by make all the factors infecting the output and erect the uncertainty model elementarily.
结果表明，在微型冷库生命周期内最佳保温层厚度与微型冷库的库容无关，而只与电价、制冷机组的价格系数等因素有关。
The results show that the thickness only has relation with the power price, the coefficient of the price of the refrigeration unit, etc.
吸收式制冷的优势在于可用低势热源驱动并以环保无公害流体作为工作介质，缺点是性能系数(COP)较低。
Absorption refrigeration can use low thermal potential energy as its power and environment friendly fluids as its working substance.
真空绝缘板（VIP）的导热系数可达0．004W／M．K，仅为传统聚氨脂发泡板的五分之一左右，可广泛应用于航天航空、冷藏集装箱、船舶冷藏库、冰箱、冷库、医用保温箱、民用制冷设备。
The thermal conductivity of vacuum insulated panel can be 0.004W/M. K, and is only one-fifth of common Polyurethane material. VIP can be used in many fields, such as Avigation.
并讨论了循环的发生温度、蒸发温度、吸收温度对循环性能系数、循环倍率和制冷量的影响。
The influences of generation temperature, evaporation temperature, absorption temperature to the coefficient of performance, circular ratio and cooling capacity were also studied.
再生温度和环境空气含湿量对系统制冷量和性能系数的影响较大，而环境空气温度的影响较小；
The regenerating temperature and the humidity ratios of ambient air are two main factors affecting system performance, while the temperature of ambient air functions less.
实验表明，以增大制冷剂流速来强化换热，可以提高蒸发器的传热系数；
The results indicate that increasing the refrigerant flow rate can enhance the coefficient of heat transfer of the evaporator.
实验结果表明，系统运行时的最大制冷(热)系数取决于系统的蒸发温度和气体冷却器出口温度。
Results from the experiment show that there exists a maximum coefficient of performance and it depends on the evaporation temperature and outlet temperature of the gas cooler.
实验结果表明，系统运行时的最大制冷(热)系数取决于系统的蒸发温度和气体冷却器出口温度。
Results from the experiment show that there exists a maximum coefficient of performance and it depends on the evaporation temperature and outlet temperature of the gas cooler.
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