To help visualize the compression process, we start where the the roller is blocking off the discharge port and the refrigerant from the suction port is able to enter the cylinder. Refrigerant enters. As the roller rotates the the suction or intake port is sealed off from the refrigerant that was just let in the cylinder.
No more refrigerant is coming in at that moment. As the roller turns there is less space for the refrigerant, the pressure and the temperature will increase because its being compressed. As the roller turns more, the refrigerants pressure will increase above the discharge lines pressure, opening the discharge valve. The high pressure high temperature refrigerant vapor will leave the compressor through the discharge line.
While the refrigerant is being compressed the suction valve opens when the roller is not blocking the suction valve, letting more refrigerant in to the cylinder.
This creates a continuous flow of compression. Scroll compressors work efficiently with two perfectly manufactured spirals. One of the scrolls is stationary, while the other scroll vibrates or wobbles. As the scroll that vibrates moves, refrigerant vapor is pushed and compressed toward the center of the compressor where it is discharged from the compressor.
The configuration of the scrolls forms multiple chambers, each of which is at a different stage of compression, allowing the compressor to operate smoothly and continuously. Scroll compressors are becoming a popular choice for replacement, because they are better able to handle any liquid that may enter the device. One of the scrolls are stationary and the other floats giving the scroll some play. This play will allow the floating scroll to move if liquid, which is not compressible, should it enter the compressor.
The pistons on a reciprocating compressor move in a well-defined path and the introduction of liquid could result in a major component failure. Liquid entering the scroll compressor will, however, reduce the capacity of the system.
Another benefit of scroll compressors is that they do not use suction and discharge valves. Since there are no suction or discharge valves, scroll compressors are equipped with a a low-mass, disc-type check valve at the discharge port tht prevents the high-pressure refrigerant from traveling back through the compressor during the off cycle.
Citation Silberstein, Eugene. Clifton Park, NY: Delmar, Call Us! Facebook Envelope. How A Reciprocating Compressor Works.
The Reciprocating Compressor Process Well start describing the process of the compressor when the piston is at its highest possible position within the cylinder.
Image provided by iStock. Schedule an Appointment. Click for Financing. Review Us on Google. Call Now! Air Conditioning System Parts Central air conditioning systems are made up of an evaporator, a condenser, and a compressor. The Air Conditioning Process Your air conditioner pulls warm air through return air vents in rooms throughout your house.
Image provided by iStock Facebook. Search for:. Aside from transferring air, another important function of the compressor is that it helps your unit to eliminate humidity. When it is not functioning properly, you can expect your room to start getting damp and moist.
When the balmy air has been absorbed by your unit, the compressor does its job of turning it into liquid. From here, it makes its way down an expansion valve that cools the warm liquid. The next step is for aircon fluids to enter into the compressor in the form of low-pressure gas. The compressor is also responsible for removing and condensing hot refrigerated gas in your unit, enabling it to have a much higher pressure and temperature.
Has your aircon started showing signs of reduced cooling? If your answer is a resounding yes, then consider this as an indicator that your compressor needs repair or changing. This problem can be due to a broken compressor, so it is recommended to schedule an appointment immediately with an aircon expert.
It is not a ghost nor someone from your house pulling some scary prank on you — it could very well be an air conditioner compressor problem that is plaguing your unit. Failure to take action on this right away may result in higher electricity bills due to increased energy consumption by your unit. There are a multitude of reasons that can be pinpointed to this. Sometimes, the problem could be as simple as a busted fuse or a broken wire. If ever your unit starts malfunctioning by turning on and off frequently, it is recommended to first look at the fuse and other wiring.
However, after doing all the necessary troubleshooting steps possible and the problem still persists, then it is time to consider consulting a professional air conditioning expert and booking an appointment to remedy this problem right away.
Then it is time to consider the possibility of a problem within its start capacitor.
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