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Which refrigerant has the highest boiling temperatures at atmospheric pressure?
The refrigerant plays a key role in achieving vapor cycle air ... After that, and until all the water has been evaporated, the remaining boiling liquid stays at the ... of the higher temperature of boiling resulting from increased pressure.
Does refrigerant enter the compressor as a low temperature low pressure gas?
Yes. The basic components of the refrigeration system are the refrigerant, compressor, condenser and receiver, expansion device and the evaporator. One cycle: Refrigerant travels to Compressor (A) to Condenser (B) to Expansion device (C) to evaporator (D). The refrigerant gas at low pressure and temperature is drawn into the compressor. The gas is compressed to a higher pressure, which causes an increase in the temperature. The refrigerant gas at a high pressure and temperature passes to the condenser (point B), where it is cooled (the refrigerant gives up its latent heat) and then condenses to a liquid. The high pressure, low temperature liquid is collected in the receiver. The high pressure liquid is routed through an expansion valve (point C), where it undergoes an abrupt reduction in pressure. That pressure reduction causes part of the liquid to immediately vaporize or flash. The vapor and remaining liquid are cooled to the saturation temperature (boiling point) of the liquid at the reduced pressure. At this point most of the refrigerant is a liquid. The boiling point of the liquid is low, due to the low pressure. When the liquid refrigerant enters the evaporator (point D), it absorbs heat from the process and boils. The refrigerant gas is now at low pressure and temperature, and enters the suction side of the compressor, completing the cycle.
What is the approximate boiling pressure for refrigerant oil in a systeme?
The approximate boiling pressure for refrigerant oil in a system will depend on the specific type of oil being used and the operating conditions of the system. Typically, refrigerant oils have boiling points ranging from 150-350°C under normal operating conditions. It is important to consult the manufacturer's specifications for the exact boiling pressure of the oil being used in a specific system.
How does a substance's boiling point determine its state at room temperature?
A substance's boiling point indicates the temperature at which it transitions from a liquid to a gas. If the substance's boiling point is below room temperature, it will be a gas at room temperature. If the boiling point is above room temperature, it will be a liquid at room temperature.
Why The refrigerant should have low boiling point and low freezing point?
A refrigerant with a low boiling point allows it to easily absorb heat from the surroundings and vaporize, transferring heat effectively. A low freezing point ensures that the refrigerant remains in a liquid state in sub-zero temperatures, preventing damage to the refrigeration system.
What is the property of refrigerant 404A?
what is suction pressure of r407a
Can R22 be used with 404A refrigerant?
No, refrigerants cannot be blended.
What determines the temperature at which a refrigerant vaporizes?
The pressure and the specific refrigerant properties determine the temperature at which a refrigerant vaporizes. As pressure increases, the boiling point of the refrigerant also increases. Different refrigerants have different boiling points at different pressures.
Define a zeotropic refrigerant blend and give an example?
In a zeotropic blend, the blends boil out at different temperature but at the same pressure. typical example is R704
What should the sub cooling be on a txv 404a refrigerant freezer?
42
What is the low side pressure of a freezer using R-404A refrigerant?
if room tem is 70f 15psi
What is the low side pressure of a freezer using R 404A refrigerant?
if room tem is 70f 15psi
Which refrigerant has the highest boiling temperatures at atmospheric pressure?
The refrigerant plays a key role in achieving vapor cycle air ... After that, and until all the water has been evaporated, the remaining boiling liquid stays at the ... of the higher temperature of boiling resulting from increased pressure.
Define a near-azeotropic refrigerant blend and give two examples.?
a blended refrigerant with less than 10F temperature glide, 41oA and 404A are examples.
The term used to describe the fact that the refrigerant blend has a range of boiling or condensing points at a constant pressure?
Temperature glide
What refrigerant has the lowest boiling temperatures at atmospheric pressure?
The refrigerant with the lowest boiling point at atmospheric pressure is R-170, also known as ethane. Its boiling point is -88.6 degrees Celsius (-127.5 degrees Fahrenheit).
What happens to a refrigerant when it is above the saturation temperature?
When a refrigerant is above its saturation temperature, it is in the superheated state. This means that it has taken on additional heat energy beyond what is needed for boiling at its current pressure. In this state, the refrigerant is a gas and can continue to absorb more heat without converting to a liquid.
