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To regulate the flow of refrigerant into the evaporator, vehicle air conditioning systems use electronic expansion valves (EEVs). It is a kind of thermostatic expansion valve (TXV) that precisely regulates the refrigerant flow rate through the use of electronic controls.
The expansion valve controls the flow of refrigerant between the high-pressure side (condenser) and the low-pressure side (evaporator) and is a crucial component of the air conditioning system. The expansion valve maintains the desired cooling effect within the car by regulating the flow of refrigerant, ensuring effective heat exchange.
Pressure variations are used by conventional mechanical expansion valves to modify the refrigerant flow. Automobile electronic expansion valves, however, have a number of benefits, such as.
Precise Control: To precisely control the valve’s opening and shutting, EEVs use electronic controls such as stepper motors or pulse width modulation (PWM) signals. As a result, the refrigerant flow may be accurately and quickly controlled, leading to better system performance and increased energy efficiency.
Electronic expansion valves have the ability to modify their functioning in response to a variety of conditions, including system demand, evaporator temperature, and ambient temperature. The inside of the car may be better controlled for temperature and humidity because of this adaptability, improving passenger comfort.
Diagnostic Capabilities: EEVs frequently include sensors and feedback devices to track system variables like pressure or superheat. Diagnostics, troubleshooting, and system optimization can all be done with the use of this data.
Electronic expansion valves are frequently used in vehicle air conditioning systems that employ variable refrigerant flow technology. They are compatible with VRF (variable refrigerant flow) systems. In order to improve comfort and energy efficiency, VRF systems can change the cooling capacity of each vehicle evaporator.
In comparison to conventional mechanical valves, automobile electronic expansion valves provide more accurate control and enhanced system performance. They are essential for maintaining effective and dependable car air conditioning, which improves passenger comfort and results in energy savings.
The Global Automotive Electronic Expansion Valve Market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
In order to precisely manage the flow of refrigerant into the evaporator in refrigeration systems, Sanhua has invented the PEV series of pulse expansion valves. The solenoid valve design of the PEV series valves enables flow regulation by pulse width control, guaranteeing very precise and quick flow control.
The PEV series’ 90 bar design pressure, which permits dependable operation in high-pressure systems like R744 transcritical refrigeration systems, is one of its important characteristics. PEV series is a great option for grocery stores, convenience stores, super- and hypermarkets because of its large capacity range and quiet operation. Because of the precisely created coils’ low energy usage (7W at AC220–230V/50Hz), energy expenditures are reduced.
