The boiling point of R22 is
-40.8 degree Celsius (-41.4 degree F)
. Due to its low boiling point this refrigerant was initial developed for the low temperature applications like domestic and farm freezers and in industrial refrigeration applications.
How hot does refrigerant get?
As the refrigerant is compressed, the molecules of heat energy are squeezed together tightly, causing the discharge temperature of the refrigerant flow to soar up to
over 200 degrees
. In this superheated, high-pressure state, refrigerant exits the compressor and heads for the condenser coil.
At what temperature does Freon boil?
For example the refrigerant commonly used in refrigerators boils
between 40° and 50°F
as compared to water’s boiling point of 212°F. Let’s look at the process to see how boiling and condensing a refrigerant can move heat.
Does refrigerant boil in the evaporator?
As the refrigerant flows in the evaporator heat is absorbed by the refrigerant,
the liquid refrigerant will boil or evaporate into vapor
. Heat that cannot be measured by a thermometer, known as latent heat or hidden heat causes the refrigerant to boil.
What temp does r134 boil at?
| P=60 kPa (Tsat -36.9°C) P=100 kPa (Tsat -26.4°C) | Temperature Volume Enthalpy (kJ/kg) | °C m^3/kg kJ/kg | Sat. 0.3112 234.5 | -20 0.3361 239.5 |
|---|
Is refrigerant toxic?
Mild exposure to refrigerant chemicals is generally harmless
. Poisoning is rare except in cases of misuse or exposure in a confined space. Symptoms of mild to moderate poisoning include: irritation of your eyes, ears, and throat.
What temp should my evaporator be?
The evaporator coil is cold
(about 40° F)
, and the air from the house is warm (about 75° F, depending on where you set your thermostat). Heat flows from warmer to cooler, so the air temperature drops, and the refrigerant picks up the heat lost by the air.
Is evaporator hot or cold?
Throughout the cooling cycle, refrigerant (coolant) cycles through the air conditioner components, absorbing heat from the house and releasing that heat outside. The evaporator coil contains
cold refrigerant
that absorbs heat from your air.
What is the difference between evaporator and condenser?
Condenser Coils. The evaporator coil is the part of an air-conditioning system that removes heat and moisture from indoor air to cool it. The condenser coil
takes that heat and releases it outside
.
Why are evaporators so cold?
When the liquid refrigerant reaches the evaporator its pressure has been reduced
, dissipating its heat content and making it much cooler than the fan air flowing around it.
Why is R134a being phased out?
Why is 134a Being Phased Out? Unlike the CFCs and HCFCs of the past
134a does not contain Chlorine and does not damage the O-Zone layer
. The worry with 134a is it’s Global Warming Potential, or GWP. GWP is a relative measure of how much heat a greenhouse gas traps in the atmosphere.
Is 134a a liquid or gas?
R134a has a boiling point of -15.34 degree Fahrenheit or -26.3 degree Celsius that makes it exist in
gas form
when exposed to environment. This is a desired property as the boiling point of a refrigerant should be below the target temperature.
What pressure should a 134a run at?
For normal running pressures in the R134a system, at the lowest temperature, the coil should run at
22 pounds per square inch
that is 45-20, 25 degrees Fahrenheit. While at the highest temperature it should be 57 pounds per square inches that is 60-20,40 degrees Fahrenheit.
Is it illegal to release R134a into the air?
R134a is not an ozone-destroying agent, but it is a greenhouse gas, and
is illegal to vent as well
.
What is the safest refrigerant?
Refrigerants are given indexes on what their potential effect on global warming and ozone depletion are, and
ammonia
is the only one that appears not to cause either of these. Ammonia is toxic and flammable, but when used in systems designed with modern technology, it is a safe refrigerant to use.
Can breathing freon make you sick?
Breathing air that
is contaminated with Freon can cause respiratory difficulties
, organ damage and, in some cases, death. Symptoms can vary depending on the extent of the Freon exposure, but even a small amount of exposure can cause serious symptoms in humans.
