Electrical Engineering Questions
Explore questions in the Electrical Engineering category that you can ask Spark.E!
Device used in (GAS) steam systems to release pressure built up due to steam within the boiler. It is rated in how many pounds of steam it can vent in an hour at a rated pressure.
As pressure increases, temperature decreases (and vice versa).
The component in the refrigeration cycle which serves as the entry point of heat from external space into the system, and turns the refrigerant into a vapor.
Air conditioning is the process of controlling which 2 climate factors (select 2):
A heat rejection device (or mechanical unit) which is used in the air conditioning system and mixes air with cooling water to reduce the temperature of the water and physically remove the heat from the system out into the atmospher
Which of the following is NOT one of the 4 key components to the refrigeration cycle?
Which of the following is NOT a typical mechanical unit, or key component, included within a commercial air conditioning system?
Enters the chiller in the absorber. pulls heat out of the air conditioning SYSTEM, exits through the condenser, and rejects that heat into the atmosphere (usually through a cooling tower)
An energy exchange (heat released or absorbed) required to convert a material from one state of matter to another (i.e. solid to a liquid to vapor).
Mechanical units in the air conditioning system are measured in cooling capacity which is actually a measurement of how much heat you can remove from a space (over time).
Uses high-pressure liquid refrigerant to absorb heat in the chilled water being recycled from the building.
The measurement of how much flow there is of electric charge.
Turns high-pressure refrigerant into high-pressure liquid, and rejects heat from the system through the cooling water.
Where the cooling water cycles back into the system and picks up heat pulled out of building, refrigerant vapor mixes with the concentrated solution causing it to dilute.
Subcooling is any temperature of a liquid below its freezing point.
Where the heat source enters the system, boils the diluted solution and separates it into refrigerant vapor and concentrated absorbent.
Device used to force accumulated sludge, scale, and sediment build-up out of a boiler.
Device in a hot water boiler that controls water temperature through limit setpoints.
Device used in (HOT WATER) steam systems to automatically release pressure built up due to steam within the boiler. It is rated in BTUs relieved per hour and is set to open at a given pressure.
The component of the refrigeration cycle which flashes the liquid into a vapor/liquid mixture by releasing pressure on it which also cools the mixture.