The suction pressure refers to the pressure of the referigerant being "sucked" back into the compressor. The suction pressure is a critical variable in ensuring the accuracy of the refrigerant charge, along with the tepmerature of that line as well. The "superheat", or heat added to the vapor in that line can be monitored in this manner.
You have not mention which suction pressure... Actually Where ever the suction is presented that pressure is called suction pressure.... and suction pressure in practical cases normally always less that atmospheric pressure and in case of delivery pressure it is opposite
Saying that suction pressure is " the pressure of the referigerant being "sucked" back into the compressor " is not accurate.
Simply , the suction pressure of a pump is the absolute pressure of a fluid , measured at the inlet of the pump ( in your answer , the pump is the compressor , and the fluid is whatever refrigerant. )
The discharge pressure , is the absolute pressure of the liquid measured at the outlet of the pump.
Obviously, the discharge pressure is usually bigger than suction pressure.
its pressure between suction and discharge flow...
No, the liquid (discharge) line is the high pressure side. The suction line is the low pressure side.
Discharge side........
On the discharge line with the relief of the pressure control back to suction
Sounds like a blockage in the system on the high pressure side.
35suction pressure in 1000 rfm
In boiler feed pumps usually the discharge pressure is 20 to 30 times tie suction Pressure so to protect the pump balancing line is given from discharge to suction.
18-20psig suction 250-270 psig discharge In freezers pressures are ok .I got it ,but the mention pressure of suction 18-20 discharge 250-270 at what temprature in centegrade it should be.
18-20psig suction 250-270 psig discharge In freezers pressures are ok .I got it ,but the mention pressure of suction 18-20 discharge 250-270 at what temprature in centegrade it should be.
discharge pressure is high, suction pressure is high superheat is low and subcooling is high.
The compression ratio is simply the ratio of the absolute stage discharge pressure to the absolute stage suction pressure.
Air has a pressure, but not a suction pressure. Air pressure is measured with a barometer, you do not calculate it. Suction pressure is a concept which applies to a pump. Suction pressure = static pressure + surface pressure - vapour pressure - friction pressure.