Is HotWaterEquipment available in the UI

asked 2024-04-23 02:26:14 -0600

MapMortar's avatar

updated 2024-04-23 10:26:38 -0600

Am I correct in thinking that HotWaterEquipment is not available in the UI (3.6.1 and 3.7.0)? I can define it in code with something like

new_hot_water_system_definition = OpenStudio::Model::HotWaterEquipmentDefinition.new(whole_building_space_type.model)
# new_hot_water_system_definition = OpenStudio::Model::OtherEquipmentDefinition.new(@os_model)
new_hot_water_system_definition.setName("Main Service Hot Water Definition")
new_hot_water_system_definition.setWattsperSpaceFloorArea(@dhw_eui * (1000.0 / 8760.0)) # Calculate DHW in W per h
# No impact to internal gains assumed
new_hot_water_system_definition.setFractionLatent(0)
new_hot_water_system_definition.setFractionRadiant(0)
new_hot_water_system_definition.setFractionLost(1)

and it is certainly used in the calculations, but I cannot see it among the Loads in the UI. It is also present in the the list of loads associated to the various spaces.

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Comments

@Mortar IO just to clarify, the HotWaterEquipment object type is for hot water loads served by district heating (appears on "District Heating Water" meter). You're calling this a DHW load, which is usually for sinks and showers and similar water draws modeled by the WaterUse:Equipment object type with a plant loop and supply-side water heater.

Aaron Boranian's avatar Aaron Boranian  ( 2024-04-23 08:15:15 -0600 )edit
1

@Aaron Boranian Yes, I am aware. I am using this object as a temporary solution to represent the consumption of domestic hot water (service hot water). I have updated the question to show the full code

I post-process the district heating to obtain an 'equivalent' gas use. I do the same for heating. I will be moving to full HVAC soon.

MapMortar's avatar MapMortar  ( 2024-04-23 10:25:47 -0600 )edit
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