Tuesday, February 22, 2011

Weak current College】 【HVAC professional English table (4).



Refrigeration
The first section of general terms
Section 6.1.1 of refrigeration refrigeration
Artificial methods from a substance or a space out of the heat for the air-conditioning, refrigeration and scientific research and so provide cold source technology.

Section 6.1.2, refrigeration engineering refrigeratingengineering
Refrigerator and its main equipment and system design, manufacture, application and action technology.

Section 6.1.3, cooling capacity refrigeratingeffect
Unit of time, from the refrigerator evaporator of refrigerant out of the heat.

Section 6.1.4 bar standard refrigeration capacity standardrating [ofrefrig-ratingmachine]
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Section 6.1.5 of air conditioning load cooling capacity ratingunderairconditioningcondition
The working conditions of air conditioning, refrigerator cooling capacity.

The first section 6.1.6 condensingpressure condensing pressure

Refrigerants condensing pressure.

Section 6.1.7 articles condensing temperature condenoingtemperature

The refrigerant vapor condensation in the condenser, correspond to the condensing pressure saturation temperature.

The first article 6.1.8 evaporatingpressure evaporation pressure

Refrigerant liquid in the evaporator evaporation pressure.

Section 6.1.9 evaporatingtemperature article evaporation temperature

Refrigerant liquid in the evaporator in gasification, corresponds to the evaporation pressure of the saturated temperature.

The first article 6.1.10 suctionpressure inspiratory pressure

Compressor inlet suction tube refrigerant gas pressure.

The first article suction temperature suctiontemperature 6.1.11

Compressor inlet suction tube refrigerant gas temperature.

Article 6.1.12 bars gas pressure dischargepressure

Compressor outlet exhaust tube refrigerant gas pressure.

The first section exhaust temperature dischargetemperature 6.1.13

Compressor exit of the exhaust pipe to the temperature of the refrigerant gases.

The standard conditions article 6.1.14 standardcondition

Comply with the standards stipulated in the refrigerator running conditions.

The first article 6.1.15 airconditioningcondition air-conditioning operation

In order to meet the air conditioning requirements stipulated in the refrigerator running conditions.

Article 6.1.16 [chiller] [refrigerating] coefficient of performance (COP) coefficientofperformance

In the specify conditions, refrigerator cooling capacity and its ratio of net input of energy.

The first article cold-water chilledwater 6.1.17

A refrigeration system out of the cold-temperature water or natural water.

The first section of the cooling water coolingwater 6.1.18

Refrigeration equipment for cooling water.

The first article enthalpy enthalpy 6.1.19

Substances with a thermodynamic properties. Defined as the material product of the volume, pressure, and can be combined.

The entropy of entropy 6.1.20

A thermodynamic State functions. For a State by State 1 to 2 of reversible processes in a closed system, with its changing value to the given points. Dq represents the temperature of which is t, system and environment to exchange heat between reversible base units.

The exergy exergy 6.1.21 bar

Energy may be converted to the long hard parts.

The first section fire no anergy 6.1.22

Energy cannot be converted into useful work.

The article-enthalpy diagram 6.1.23 pressureenthalpychart

To pressure and enthalpy value coordinates representing material status changes of thermal state diagram.

The first article enthalpy entropy diagram 6.1.24 enthalpyentropychart

The enthalpy, the entropy for coordinates and represents the physical status of thermodynamic state diagram.

The first section press junto 6.1.25 pressurevolumechart

To pressure and conformity coordinates representing the ratio of material status changes of thermal state diagram.

The first article refrigeration room refrigeratingstation 6.1.26; refrigeratingplantroom

Install the refrigerator and, its by-laws, in the case of devices in the room, also called the freezing point.



HVAC professional English table (5)
The second section of refrigerants and refrigeration cycle

Section 6.2.1 of refrigerants workingsubstance

In working in a thermodynamic cycle.

Section 6.2.2Article refrigerant refrigerant

Refrigeration system, the completion of the work of the refrigeration cycle.

Section 6.2.3 of azeotropic refrigerant azeotropicmixturerefrigerant solution

Two or more of the refrigerant, according to certain component mutually dissolved generated mixed refrigerant. In the constant pressure of the refrigerant has a constant temperature of evaporation and condensation temperature, gas and liquid phase with the same component.

Section 6.2.4 non-azeotropic refrigerant nonazeotropicmixturerefrigerant solution

Two or more of the refrigerant, according to certain component mutually dissolved generated mixed refrigerant. In the constant pressure of the refrigerant evaporating temperature and condensing temperature does not remain constant, and gas and the liquid has the same composition.

≫ section 6.2.5 of freon freon

Used as refrigerant in saturated hydrocarbons halogen derivatives of hydrocarbons.

≫ section 6.2.6 of ammonia and ammonia

A molecular formula for NH3 of inorganic compounds refrigerant.

≫ section 6.2.7 of LIBR lithiumbromide

Absorption refrigeration of the absorbent. A formula for the solid salt crystal LiBr.

≫ section 6.2.8 article refrigerant water waterasrefrigerant

In absorption refrigeration, water as refrigerant.

≫ section 6.2.9 of refrigerant secondaryrefrigerant; refrigeratingmedium
Indirect refrigeration system to absorb the refrigeration space or medium heat and transfer it to a fluid refrigerant, also known as refrigerant.

≫ section 6.2.10 strongsolution article concentrated solutions; strongliquor

Solute composition higher solution.

Section 6.2.11 of dilute solution weaksolution

Solute composition lower solution.

Section 6.2.12 Strip anticorrosive corrosionsnhibitor inhibitor;

Join the liquid to lower the freezing point of an additive.

The first article antifreeze antifreezeagent 6.2.13; antifreezer

Join the liquid to lower the freezing point of an additive.

The first section 6.2.14 flashgas Flash gas

Liquid refrigerant because of sudden depressurization of partial evaporation gas.

Section 6.2.15 bar Non-Condensable gases noncondensablegas; foulgas

In condensing temperature and pressure, no condensation and exist in the gas in the refrigeration system.

The thermodynamic cycle thermodynamiccycle 6.2.16 bar

Refrigerant thermal change over again to the initial state of a series of thermal process.

Section 6.2.17 bar cyclic reversiblecycle

Consists of a series of reversible processes consisting of ideal thermodynamic cycle.

The Carnot cycle Carnotcycle section 6.2.18

Includes two isothermal process and two adiabatic process will maximize thermal energy into mechanical energy in an ideal reversible loop.

The first section 6.2.19 reverseCarnotcycle reverse Carnot cycle

And the Carnot cycle is the same as the opposite of the loop.

The refrigeration cycle refrigeratingcycle 6.2.20 bar

The refrigerant in the refrigeration system experienced a series of thermal process consisting of the thermodynamic cycle.

Section no. 6.2.21 compression refrigeration cycle compression-typerefrigerationcycle

By refrigerant liquid gas, vapour compression, vapour of machinery of liquefaction and liquid expansion, four segments of refrigeration cycle.

The first article compression compression 6.2.22

Compression refrigeration system, upgrade the refrigerant pressure process.

The expansion of expansive 6.2.23

The fluid pressure reduction, enlargement process.

The first rule 6.2.24 throttlingexpansion throttle expansion

Refrigerant through any expansion hypotensive components. With the outside world without mechanical power delivery.

The first article condensation condensation 6.2.25

Gaseous refrigerant through the process of cooling becomes a liquid.

The first article supercooled subcooling 6.2.26

Liquid refrigerant temperature down to the appropriate pressure condensation temperature following phenomenon.

Section no. 6.2.27 undercooling degreeofsubcooling

Condensing temperature and cold temperatures.

The first article overheating supeheat 6.2.28

Gaseous refrigerant pressure temperature rise to a correspondingOf the phenomenon of saturated temperature above.

The first article superheat degreeofsuperheat 6.2.29

Overheating temperature and the difference between saturated temperature.

The 6.2.30 article absorption refrigeration cycle absorptionrefrigerationcycle

Powered by the heat from the refrigerant gas, vapour absorbed liquid absorption, heat absorption liquid refrigerant vapour out and refrigerants condensing, expansion, and other processes of refrigeration cycle.

The vapour blasting 6.2.31 of refrigeration cycle steamjetrefrig-erationcycle

Use of Jet will refrigerants ejection from the evaporator, condenser to make the process of completing the cycle of refrigerants.

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