A thermal expansion valve and an electronic expansion valve was tested in a Air Cooled Screw Heat Pump respectively.
在风冷螺杆热泵机组上对电子膨胀阀与热力膨胀阀进行了机组性能的对比试验。
The relation between opening and outflow of EEV (Electronic expansion valve) was studied through the experiment in this paper.
本文通过实验研究了电子膨胀阀流量与开度的关系。
By analysis of them, some shortcoming is detected and a universal modeling method of electronic expansion valve core is put forward at last.
在对其进行分析计算的基础上发现了现有膨胀阀阀头线型设计方法的不足，并提出了通用的阀头线形几何模型的建立方法。
Temperature distributions in a display case controlled by thermostatic expansion valve and electronic expansion valve are studied in this paper.
对热力膨胀阀和电子膨胀阀控制下陈列柜内的温度分布做了实验研究。
By using electronic expansion valve, combining with novel control methods, optimum control of refrigeration system and high energy-saving effects can be realized.
配合新型控制方式，可以实现制冷系统的优化控制和大幅度地提高节能效果。
The experimental result shows that using electronic expansion valve instead of thermal expansion valve, the cooling capacity increases by 11.4%, COP increases 9.6%.
试验表明：使用电子膨胀阀对比使用热力膨胀阀，机组的制冷量提高11.4%以上、COP提高9.6%以上。
It is found that the superheat may be zero for a long time. A new index, Zero Superheat Time, was put forward, and applied to the electronic expansion valve control.
为此，将零过热度时间作为一个重要的指标，用于电子膨胀阀的启动控制；
Finally, does some simulation studies to the fuzzy controller with variable region that designs for electronic expansion valve, and compared with ordinary fuzzy controller.
最后，对控制电子膨胀阀开度而设计的变论域模糊控制器进行了仿真研究，并且与普通模糊控制器的控制效果进行了比较。
Through dividing electronic expansion valve from evaporator system and based on constant gain of superheat open loop rule, the compensation theory of valve head was analyzed.
通过将电子膨胀阀与受控对象(蒸发器)细化分开来，并依据恒定开环增益准则从理论上分析了阀头补偿原理。
By applying black box theory inlet pressure, inlet subcooling, outlet pressure and valve opening are selected as influence factors to flow coefficient of electronic expansion valve (EEV).
根据黑箱理论提出将阀前压力、阀前过冷度、阀后压力和膨胀阀流通面积作为膨胀阀流量系数的影响参数。
The strengths for flow regulation and superheat adjustment of electronic expansion valve are purposed, as well as the development trend is analyzed in air-conditioning or commercial freezing area.
从制冷系统节流机构的流量调节稳定性、过热度控制原理、系统节能、瞬态反应特性、部分负荷调节特性方面，比较分析了几种节流机构应用于制冷装置中的特点。
The strengths for flow regulation and superheat adjustment of electronic expansion valve are purposed, as well as the development trend is analyzed in air-conditioning or commercial freezing area.
从制冷系统节流机构的流量调节稳定性、过热度控制原理、系统节能、瞬态反应特性、部分负荷调节特性方面，比较分析了几种节流机构应用于制冷装置中的特点。
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