It is maintained through the use of a compressor in a graduated cylinder
Refrigerant pressure in a graduated cylinder is maintained by adjusting the flow of the refrigerant entering the cylinder. A valve connected to the cylinder regulates the flow of refrigerant, allowing the pressure inside the cylinder to be controlled. Monitoring and adjusting the valve ensures that the desired pressure level is maintained during the experiment.
It is maintained through the use of a compressor in a graduated cylinder
The refrigerant cylinder pressure is kept above the system pressure by regulating the flow of refrigerant from the cylinder into the system. This is typically achieved using a charging hose with a metering device or valve that controls the rate of flow. By adjusting the flow rate, the pressure in the cylinder can be maintained higher than the system pressure during charging.
Ensure the charging cylinder is in an upright position to prevent liquid refrigerant from escaping. Slowly open the cylinder valve to let refrigerant flow into the system in a controlled manner. Monitor the pressure and temperature while charging to avoid overfilling the system.
Refrigerant pressure decreases in a refrigerant cylinder while charging with vapor because vapor has a lower density compared to liquid refrigerant. As vapor is introduced into the cylinder, it displaces the liquid refrigerant, causing the pressure to drop as the overall density of the refrigerant in the cylinder decreases.
The refrigerant cylinder pressure is typically higher than the system pressure, which allows the refrigerant to flow from the cylinder into the system. By opening the valve on the refrigerant cylinder, the higher pressure inside the cylinder forces the vapor refrigerant into the lower pressure system. This creates a flow of refrigerant into the system until the pressures equalize or until the desired amount of refrigerant has been added.
Lighter, as the refrigerant is boiled off, and colder, as it has absorbed heat, and has a lesser pressure to reflect the current temperature / pressure relationship for the type of refrigerant
Lighter, as the refrigerant is boiled off, and colder, as it has absorbed heat, and has a lesser pressure to reflect the current temperature / pressure relationship for the type of refrigerant
Add refrigerant vapor on the low side of the system ,the compressor raises the pressure of the refrigerant on the high side of the system and lowers the pressure on the low side
Add refrigerant vapor on the low side of the system ,the compressor raises the pressure of the refrigerant on the high side of the system and lowers the pressure on the low side
Damaged refrigerant
comparing the cylinder pressure and the temperature to a pressure-temperature chart.