Emitters

[RomainNouvel]

Emitters (also called end use unit or zoning system) have been modelled in an earlier version of the Energy ADE (0.4.3) before to be removed for simplification purpose. They mainly relate to the end use types SpaceHeating, SpaceCooling and Ventilation. It could be interested to integrate them again in the schema, either directly connected to the EnergyDemand object or as attribute of the DistributionSystem. Emitters could be an object with as attributes: emitter type (radiators ect.), heatExchangeType, installed power, number etc...

[mlauster]

Sounds like a good idea, they are technically the missing link between energy conversion and energy use. Currently, I would vote for connected to distribution system, but I'm open for other opinions.

[kwakuwulf]

I agree. We were discussing the same issue today internally. Emitter types in industry could be heat exchanger, direct infusion of steam, jacketed vessel, ...

[RomainNouvel]

Request of Change:

• introduction of a new object "Emitter", with a relation 0..* from EnergyDistributionSystem to Emitter. Definition : End unit which emits useful energy (e.g. heat, cool) in the zone where it is required.
• Emitter has the following attributes:
  • emitterType(0.1) [Enumeration], definition : type of the energy emitter (e.g. radiators, radiant floor etc.)
  • unitNumber(0.1) [Integer], definition: number of emitter units
  • installedPower(0.1) [MeasuredType], definition : total nominal power of the emitter units
  • thermalExchange(0,1) [heatExchangeType], definition: proportion of the different thermal exchanges (e.g. convection, radiative etc.)
• the values of the emitterTypeEnumeration are : radiators, convectors, radiant floor, radiant ceiling, radiant wall, split-unit, 2-pipes fan coil unit, 4-pipes fan coil unit

[mlauster]

@RomainNouvel, we had the the question how to model heat recovery from Emitter related processes. E.g. the emitter is an oven, how to model that a part of the heat can be reused, e.g. at the back of the oven. If we define the oven as an EnergyConversionSystem, we could use the relation to FinalEnergy to model that. So the question is, should we add the same relation as for EnergyConversionSystem to Emitter so that Emittercan produce and consume FinalEnergy? Quite complex question, from a technical point EnergyConversionSystemsand Emittersare very similar, both convert energy, either by its form or by its temperature.

[mlauster]

And what about electrical emitter? Should we add the same structure as for 'ThermalDistributionSystemandPowerDistributionSystemand addEmitter` as well to the electrical part, e.g. a lighting system?

[JoachimBenner]

I propose to close this issue and continue the discussion under issue #137

[RomainNouvel]

ok