Intake pressure range of the hydrogen compressor at the hydrogen refueling station
Thread Content
This post was last edited by Chengdu Yueyue on 2018-8-9 at 12:25. Among the membrane compressors used in hydrogen refueling stations, one of these compressors is used to pressurize the high-pressure hydrogen storage tank (with a pressure of over 70 MPa; let’s call it Storage Tank 1 for now). In such refueling stations, what range should the inlet pressure of this compressor be considered within? (I’m mainly interested in knowing the lower limit of the inlet pressure.) Upstream of this compressor is another hydrogen storage tank (temporarily referred to as Storage Tank 2); its initial pressure may be above 40 MPa. However, as the compressor continues to pressurize Storage Tank 1, the pressure in Storage Tank 2 will gradually decrease. It is not clear to what level the hydrogen filling station typically reduces the pressure in Storage Tank 2. I seek advice from the experts here. . . Thank you!
It depends on the diaphragm compressor. I know that the intake pressure ranges from 5 to 20 MPa, while the exhaust pressure is usually 45 or 85 MPa
Intake pressure 5-20mpa