When energy is added to an object or location, the motion of the molecules increases causing them to collide more frequently. The practical meter-kilogram-second unit of electric current that is equivalent to a flow of one coulomb per second or to the steady current produced by one volt applied across a resistance of one ohm.ĭegree of hotness or coldness of an object or location measured on a definite scale. The mesh size determines the size of the material/debris being removed. Used to remove foreign material from the water flow. If the compressor operates out of its original design, it will effect the energy consumption. The head pressure divided by the suction pressure or the condenser pressure divided by the evaporator pressure expresses this. The energy used by the compressor is dependent on the pressure increase.
The motor in the compressor is the main consumer of energy in the chiller system. This low pressure, low temperature vapor is then compressed into a higher pressurize, hot refrigerant vapor which leaves the compressor and travels to the condenser. The compressor maintains a low pressure in the evaporator by continually removing refrigerant vapors. The process a liquid goes through to change phase from a liquid to a vapor.Īn instrument or device for measuring, indicating or comparing a physical characteristic, i.e., temperature or pressure.Ī mechanical device where the refrigerant is compressed from a lower pressure and lower temperature to a higher pressure and higher temperature. Liquid refrigerant cooled below the condensing temperature of the refrigerant.
The condenser side is commonly referred to as the open recirculation system or open loop.Īny foreign object or substance not normally found in a specific location.Ī space partially exhausted by artificial means (i.e., suction measured in inches of Hg in a low pressure chiller).
The condenser is where hot pressurized refrigerant vapors in the compressor are cooled and liquefied by cooling tower water circulating through the tubes of the condenser. Heat exchanger where the system heat is rejected and the refrigerant condenses into a liquid.