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A refrigerant systems evaporator typically runs about how many degrees of superheat?
Wiki User
∙ 11y ago
10 degrees
Wiki User
∙ 11y ago
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Why would a suction line ice up?
Its due to the refrigerant dropping to a temperature that's below freezing(32 degrees at sea level) and the humidity(water) that forms on the suction line freezes caused by several things: shortage of freon, dirty evaporator coil, oversized unit, and dirty filter.
What is meant by degree of subcooling?
The degrees (temperature) from the saturated liquid line. One example would be after refrigerant goes through a condenser. T_subcooling = T_sat - T_condenser
How do you receive an audio engineering degree?
Audio engineering degrees aren't typically obtainable online. The degrees themselves aren't actually degrees, but rather certifications. You can receive certification in audio engineering after 2 years at vocational training school.
How does time relate to degrees in an AC sine wave?
One cycle of the sine wave is equal to 360 degrees. In US the frequency of power is typically 60 Hz and hence one cycle is 1/60 of a second. Therefore you can calculate the degrees at any instant of time. If at zero degrees the voltage amplitude is zero, then at 90 degrees,which is 1/4 cycle, wave is at peak voltage. At 180 degrees it is at 1/2 cycle and zero voltage and then at 270 degrees it is 3/4 of the cycle and a peak negative voltage. Finally at 360 degrees the cycle is complete and the voltage is again zero.
What is the phase angle difference between inductive load and resistive load?
The phase angle is defined as the angle by which the load current leads or lags the supply voltage.For a purely-resistive load, the phase angle is zero, because the load current is in phase with the supply voltage.For a purely-inductive load, the phase angle is 90 degrees lagging.But few loads are either purely-resistive or purely-inductive; typically, most loads are resistive-inductive. This means that, typically, the phase angle lies somewhere between zero and 90 degrees.
A refrigerant system's evaporator typically run about how much degree of superheat?
About 10 degrees
What amount of superheat is recommended for R-22?
Superheat depends on the type of metering device you are using in the equipment as well as the current state of the load. With a fixed orifice, the superheat will be high, about 20 to 30 degrees when the box is warm, down around 10-15 when the box is cold. With a txv, the superheat should be constant, normally between 10-15 degrees. It is best to check the superheat at the outlet of the evaporator. this will ensure that the compressor does not slug with liquid refrigerant.
What is the calculation to find evaporator superheat for a system with 76 per square inch gage for R22 when the evaporator outlet temperature is 58 degrees Fahrenheit?
10
If an air conditioner evaporator coils is setup so the refrigerant is vaporized at forty five degrees Fahrenheit What is the pressure in the evaporator coil?
If a train leaves Chicago how long does it take to go to NYC? Cannot be answered, the question is incomplete.
What are the right temperature on superheat and sub cool?
The right temperature to superheat and sub cool a substance varies greatly. Water for example takes temperatures above 212 degrees to superheat and temperatures below 32 degrees to sub cool.
What are the limitations of saparating and throttling calorimeter?
There must be at least 10 degrees of superheat in the calorimeter for accurate results.
What is the superheat if the suction pressure is 60 psig and the suction line temperature is 40 degrees?
-5 something is wrong
Does refrigerant enter evaporator as a liquid in a direct expansion evaporator?
It will, in basically all cases be a mixture of liquid and vapor, which means the refrigerant is saturated but with a few bubbles entering the evaporator. In a properly operating system though entering the metering device should be solid liquid and some sub-cooling (sub-cooled means cooler then saturation and therefore= no vapor) but then through the metering device (TXV, cap tube, orifice) some of the liquid will boil off, which is called flash gas, in order to cool the refrigerant down as saturated temperature goes down (the pressure to boiling point relation, as pressure is reduced boiling point is lowed). The amount of flash gas is directly related to the specific heat of the refigernt (BTUs/lb), the number of degrees you are cooling the refrigerant (eg. 95 to 45), and the latent heat of vaporization (BTUs/lb for change of state. liquid to vapor)
If the evaporator temperature is below 32 degrees Fahrenheit there must be some provision for?
Defrost
If the evaporator temperature is below 32 degrees f there must be some provision for?
defrost
If the temp is 70 degrees in the morning and up to 85 degrees by 1pm and the AC never shuts off is this normal or could it be the refrigerant?
You need to have your system checked out as it could be low on refrigerant Check your filter.
What is need of superheat during metal melting stage?
to avoid rapid soldification of this metal, it is melted to at least 50 degrees above the melting point.
