Feature Type
A machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle. A chiller is rated between one to 1000 tons of cooling energy.
energy:AbstractEnergyConversionSystem
Attribute type: core:creationDate |
Date the city object was generated.
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Date
Attribute type: core:terminationDate |
????
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Date
Attribute type: core:externalReference |
Reference to a corresponding object in another information system, for example in the German cadastre (ALKIS), the German
topographic information system (ATKIS), or the OS MasterMap®.
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ExternalReference (DataType)
Attribute type: core:relativeToTerrain |
Location of the city object relative to the surrounding terrain.
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RelativeToTerrain (Enumeration)
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Code |
Text |
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entirelyAboveTerrain |
entirelyAboveTerrain |
Object is located entirely above terrain.
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substantiallyAboveTerrain |
substantiallyAboveTerrain |
Most, but not all parts of the object are located above terrain.
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substantiallyAboveAndBelowTerrain |
substantiallyAboveAndBelowTerrain |
Parts of the object are located above terrain, and other parts below terrain.
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substantiallyBelowTerrain |
substantiallyBelowTerrain |
Most, but not all parts of the object are located below terrain.
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entirelyBelowTerrain |
entirelyBelowTerrain |
All parts of the object are located below terrain.
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Attribute type: core:relativeToWater |
Location of the city object relative to the surrounding water surface.
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RelativeToWater (Enumeration)
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Code |
Text |
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entirelyAboveWaterSurface |
entirelyAboveWaterSurface |
Object is located entirely above water surface..
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substantiallyAboveWaterSurface |
substantiallyAboveWaterSurface |
Most, but not all parts of the object are located above water surface.
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substantiallyAboveAndBelowWaterSurface |
substantiallyAboveAndBelowWaterSurface |
Parts of the object are located above water surface, and other parts below water surface.
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substantiallyBelowWaterSurface |
substantiallyBelowWaterSurface |
Most, but not all parts of the object are located below water surface.
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entirelyBelowWaterSurface |
entirelyBelowWaterSurface |
All parts of the object are located below water surface.
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temporarilyAboveAndBelowWaterSurface |
temporarilyAboveAndBelowWaterSurface |
The height of the water surface is varying and the object temporily is located above or below water level.
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Attribute type: core:appearance |
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AbstractAppearance
Attribute type: core:genericAttribute |
Additional property of the city object
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AbstractGenericAttribute (DataType)
Attribute type: energy:numberOfDevices |
Indicates the total number of devices used.
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Integer (Type)
Attribute type: energy:model |
Indicates the type of model.
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CharacterString (Type)
Attribute type: energy:serviceLife |
Relation to a data structure describing the service life for lifecycle analysis.
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ServiceLife
Attribute type: energy:yearOfManufacure |
Manufacturing year of the energy system.
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Year
Attribute type: energy:installedIn |
Relation to the city object in which the energy system is installed.
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_CityObject
Attribute type: energy:efficiencyIndicator |
Reference efficiency ratio used to quantify the system efficiency (e.g. COP, EER, W/(m3/h)).
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CharacterString
Attribute type: energy:installedPower |
Total nominal power of the energy conversion system.
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Measure (Type)
Attribute type: energy:nominalEfficiency |
Nominal ratio of energy output to input, according to manufacturer.
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Measure
Attribute type: energy:has |
Relation to SystemOperation class, specifying operational details of the energy conversion system.
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SystemOperation
Attribute type: energy:provides |
Amount of energy being provided via a specific energy carrier.
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EnergyFlow
Attribute type: energy:condensationType |
Chillers categories based on type of condensation (e.g. air, water, evaporative condensed chiller).
1
CondensationTypeValue (Enumeration)
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Code |
Text |
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dryCooling |
dryCooling |
The dry cooling alternative utilizes an air-cooled condenser to cool the exhaust steam using a large array of fans that force air over finned tube heat exchangers. |
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evaporativeCooling |
evaporativeCooling |
An evaporative cooler (also swamp cooler, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from typical air conditioning systems, which use vapor-compression or absorption refrigeration cycles. |
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hybridCooling |
hybridCooling |
Any combination of Air-Cooled Condensers, Cooling Towers, Surface Condensers and Air Cooled Heat Exchangers is commonly termed a “hybrid cooling system." |
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adiabaticCooling |
adiabaticCooling |
Adiabatic cooling is the process of reducing heat through a change in air pressure caused by volume expansion. |
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freeCooling |
freeCooling |
Free cooling is an economical method of using low external air temperatures to assist in chilling water, which can then be used for industrial processes, or air conditioning systems. |
Attribute type: energy:compressorType |
Chillers categories based on type of compressor (e.g. reciprocating, centrifugal, screw compressor).
1
CompressorTypeValue (Enumeration)
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Code |
Text |
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reciprocatingCompressorHermetic |
reciprocatingCompressorHermetic |
A one-piece welded steel casing that cannot be opened for repair; if the hermetic fails it is simply replaced with an entire new unit. |
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reciprocatingCompressorSemiHermetic |
reciprocatingCompressorSemiHermetic |
A semi-hermetic uses a large cast metal shell with gasketed covers that can be opened to replace motor and pump components. |
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reciprocatingCompressorOpen |
reciprocatingCompressorOpen |
Open compressors rely on shaft seals to retain the internal pressure, and these seals require a lubricant such as oil to retain their sealing properties. |
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rotaryVaneCompressor |
rotaryVaneCompressor |
Rotary vane compressors consist of a rotor with a number of blades inserted in radial slots in the rotor. The rotor is mounted offset in a larger housing that is either circular or a more complex shape. |
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scrollCompressor |
scrollCompressor |
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screwCompressor |
screwCompressor |
Rotary screw compressors use two meshed rotating positive-displacement helical screws to force the gas into a smaller space. |
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centrifugalCompressor |
centrifugalCompressor |
Centrifugal compressors use a rotating disk or impeller in a shaped housing to force the gas to the rim of the impeller, increasing the velocity of the gas. |
Attribute type: energy:refrigerant |
A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration cycle.
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CharacterString (Type)