The two-phase flow of R410A refrigerant through an electronic expansion valve (EEV) is modelled using two models, the Homogeneous Equilibrium Model (HEM) and Homogeneous Relaxation Model (HRM) in a CFD numerical analysis. The reason for this is to take a step towards developing a more ...
enters an expansion valve (of cross-sectional area 0.011 m2) at 11 bar, 330 K and 25 m s-1, and leaves at 2 bar. This application calculates the temperature and velocity of the refrigerant as it exits the valve. The kinetic energy term in the First Law of Thermodynamics is generally ...
Experimental Analysis of R245fa Mass Flow Rate Through Electronic Expansion Valve In this study, in order to analyze mass flow rate variation of R245fa flowing through EEVs, two EEVs with orifice diameter of 1 mm and 1.4 mm were tested respectively. During the experiment process, evaporating ...
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Experimental investigation on two-phase flow noise characteristics of R410A through electronic expansion valve of multi-split air conditioner The refrigerant flowing through an electronic expansion valve (EEV) of a multi-split air conditioner is usually in two-phase state which may generate more ......
Access through your organization Section snippets Experimental apparatus and test method The test apparatus shown in Fig. 2 was used to study the performance characteristic of various electronic expansion valve for R22, R407C, and R410A. This system consists of a magnetic gear pump, two brazed ...
AIRFLOW REGULATING VALVE not available for EP046794of corresponding document:An airflow regulating valve in a tube through which an airflow passes. The valve includes first and sec... F Johansson - EP 被引量: 0发表: 1993年 Flow-regulating expansion valve In a small-sized solenoid-driven flo...
and pressure in a pressure chamber formed on the opposite side of the main valve, and a pilot valve for sensing the differential pressure proportional to the flow rate of refrigerant flowing through the restriction passage, thereby controlling the pressure in the pressure chamber set by a solenoid...
Figure 1. Flow of gas vs. pressure drop ratio through a control valve. The equation for flow at the top of Figure 1 is almost identical to the equation we would use for liquid in cases where flow was given in pounds per hour. (Note that the subscript, 1, for pressure and density, ...
Reduction of Intermittent Noise Caused by Gas-Liquid Two-Phase Refrigerant Flow through an Expansion Valve We report a thorough analysis of the intermittent flow of pedestrians through a narrow door. The observations include five different sets of evacuation dri... T Umeda,T Fukushima,S Nakamura,....