Meaning of heat transfer medium
Heat Transfer Medium
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Engineering and technical terminology
Glossary of engineering terms
Meaning and definition of heat transfer medium :
HEAT TRANSFER MEDIUM - The fluid, often water, which acts as the agent or medium in a heat exchanger through which heat is exchanged from one side to the other.HEATING COIL - Heat transfer device consisting of a coil of piping, which releases heat.HEATING CONTROL - Device which controls temperature of a heat transfer unit which releases heat.HEATING SURFACE - That surface which is exposed to the heating medium for absorption and transfer of heat to the medium.HENRY’S LAW - An expression for calculating the solubility of a gas in a fluid based on temperature and partial pressure.HENRY - The unit of self-inductance or mutual inductance in the metric system. Its symbol is H.HERMETIC - Sealed so that the object is gas tight.HERMETIC COMPRESSOR - Compressor which has the driving motor sealed inside the compressor housing. The motor operates in an atmosphere of the refrigerant.HERMETIC MOTOR - Compressor drive motor sealed within same casing which contains compressor.HERMETIC SYSTEM - Refrigeration system which has a compressor driven by a motor contained in compressor dome or housing.HERTZ - A unit in the metric system used to measure frequency in cycles per second. Its symbol is Hz.HIC - Hydrogen-induced cracking. (Same as hydrogen embrittlement)HIDDEN DEMAND CHARGE - Electric bill charges that are based on cents per kWh per kW demand contain a hidden demand charge. A low load factor for a building then penalizes the energy user through this "hidden" charge. HIDEOUT - Is the accumulation of chemicals on surfaces, in crevices or in deposits within the system during normal operation.HIGH LIMIT CONTROL - A device which normally monitors the condition of the controlled medium and interrupts system operation if the monitored condition be comes excessive, for example a high level of fluid in a storage tank.HIGH SIDE - Parts of the refrigerating system subjected to condenser pressure or higher, the system from the compression side of the compressor through the condenser to the expansion point of the evaporator. HIGH-PRESSURE CUT-OUT - Electrical control switch operated by the high-side pressure which automatically opens electrical circuit if too high pressure is reached.HIGH-SIDE FLOAT - Refrigerant control mechanism which controls the level of the liquid refrigerant in the high-pressure side of mechanism.HIGH-VACUUM PUMP - Mechanism which can create a vacuum in the 1000 to 1 micron range.HOT DECK - The heating section of a multizone system. HOT GAS BYPASS - Piping system in refrigerating unit which moves hot refrigerant gas from condenser into low-pressure side.HOT GAS DEFROST - Defrosting system in which hot refrigerant gas from the high side is directed through evaporator for short period of time and at predetermined intervals in order to remove frost from evaporator.HOT JUNCTION - That part of thermoelectric circuit which releases heat.HOT PROCESS - A water treatment process, when the water is heated above the room temperature.HOT PROCESS PHOSPHATE SOFTENING - A process whereby the calcium and magnesium salts containing, constituting the hardness of water, are chemically precipitated and removed with phosphate in conjunction with caustic soda.HOT WELL - A tank used to receive condensate from various sources on its passage back to the boiler through a feedwater system.HOT-WATER HEATING BOILER - A boiler in which no steam is generated and from which hot water is circulated for heating purposes and then returned to the boiler.HOT-WATER RE-CIRCULATING SYSTEM - A heating system using water as a heat-transfer medium through a heat exchanger or boiler to terminal heating unit.HSC - Hydrogen stress cracking.HSCC - Hydrogen- assisted stress-corrosion cracking.HUMIDIFIER - A device to add moisture to air. HUMIDIFYING - Adding of moisture to the air.HUMIDIFYING EFFECT - The latent heat of vaporization of water at the average evaporating temperature times the weight of water evaporated per unit of time. HUMIDISTAT - A regulatory device, actuated by changes in humidity, used for the automatic control of relative humidity.
For the term heat transfer medium may also exist other definitions and meanings, the meaning and definition indicated above are indicative not be used for medical and legal or special purposes.
Source : http://www.sharylandisd.org/cms/lib/TX21000378/Centricity/Domain/133/Engineering_Dictionary.docx
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Heat Transfer Medium
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