7.5.2.8 IfcCompressorTypeEnum
7.5.2.8.1 Semantic definition
Enumeration defining the typical types of compressors.
7.5.2.8.2 Type values
| Type | Description |
|---|---|
BOOSTER
|
Positive-displacement reciprocating compressor where pressure is increased by a booster. |
DYNAMIC
|
The pressure of refrigerant vapor is increased by a continuous transfer of angular momentum from a rotating member to the vapor followed by conversion of this momentum into static pressure. |
HERMETIC
|
Positive-displacement reciprocating compressor where the motor and compressor are contained within the same housing, with the motor shaft integral with the compressor crankshaft and the motor in contact with refrigerant. |
OPENTYPE
|
Positive-displacement reciprocating compressor where the shaft extends through a seal in the crankcase for an external drive. |
RECIPROCATING
|
Positive-displacement compressor using a piston driven by a connecting rod from a crankshaft. |
ROLLINGPISTON
|
Positive-displacement rotary compressor using a roller mounted on the eccentric of a shaft with a single vane in the nonrotating cylindrical housing. |
ROTARY
|
Positive-displacement compressor using a roller or rotor device. |
ROTARYVANE
|
Positive-displacement rotary compressor using a roller mounted on the eccentric of a shaft with multiple vanes in the nontotating cylindrical housing. |
SCROLL
|
Positive-displacement compressor using two inter-fitting, spiral-shaped scroll members. |
SEMIHERMETIC
|
Positive-displacement reciprocating compressor where the hermetic compressors use bolted construction amenable to field repair. |
SINGLESCREW
|
Positive-displacement rotary compressor using a single cylindrical main rotor that works with a pair of gate rotors. |
SINGLESTAGE
|
Positive-displacement reciprocating compressor where vapor is compressed in a single stage. |
TROCHOIDAL
|
Positive-displacement compressor using a rolling motion of one circle outside or inside the circumference of a basic circle and produce either epitrochoids or hypotrochoids. |
TWINSCREW
|
Positive-displacement rotary compressor using two mating helically grooved rotors, male (lobes) and female (flutes) in a stationary housing with inlet and outlet gas ports. |
WELDEDSHELLHERMETIC
|
Positive-displacement reciprocating compressor where the motor compressor is mounted inside a steel shell, which, in turn is sealed by welding. |
USERDEFINED
|
User-defined compressor type. |
NOTDEFINED
|
Undefined compressor type. |
7.5.2.8.3 Formal representation
TYPE IfcCompressorTypeEnum = ENUMERATION OF
(BOOSTER
,DYNAMIC
,HERMETIC
,OPENTYPE
,RECIPROCATING
,ROLLINGPISTON
,ROTARY
,ROTARYVANE
,SCROLL
,SEMIHERMETIC
,SINGLESCREW
,SINGLESTAGE
,TROCHOIDAL
,TWINSCREW
,WELDEDSHELLHERMETIC
,USERDEFINED
,NOTDEFINED);
END_TYPE;