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[EnergyPlus_Support] Re: HVAC Template
Hello,
I am taking this old 2009 question out of the dust to ask for a bit more details.
"YLI006 > If so, all non VAV templates are CAV's. Any VAV system running at constant air volume is a CAV. I.e., air volume not controlled by theremostat in the zone."
I pretty much had the same question in mind since I could not find a system that use chilled water except for VAV.
Only VAV systems can used CHilledWater in the HVAC:Template's.
Are you proposing to size a VAV system min and max flows to the same values to convert a VAV to CAV? I bet not since I don't see how E+ would know what to do to modulate cooling to meet the varying load. right?
Do these things exist? i.e. Assembled CAV units with a chilled water coil.
Maybe I am off track and the system is just not a CAV?
JP Beaulieu,
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, YuanLu ÔªÁù Li <yli006@....> wrote:
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> What is SDCAV and DDCAV?
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> Single Duct constant air volume and dual duct constant air volume?
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> If so, all non VAV templates are CAV's. Any VAV system running at constant air volume is a CAV. I.e., air volume not controlled by theremostat in the zone.
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> How do you intend to use the dual duct? One for conditioned air and one for return air? One for heating and one for cooling?
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> HVACTemplate:Thermostat
> HVACTemplate:Zone:Unitary
> HVACTemplate:System:Unitary
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> combination is a constant volume single duct equivalent.
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> PTAC is also a constant volume single duct equivalent..
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> There are examples in the exampleFiles folder.
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> Is there any zone equipment? Dampers, fans, or coils. How do you intend to control the zone temperature and humidity? What do you want to use as cooling and heating sources?
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> I may be wrong, as I have not run all these simulations myself.
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> Dr. Li
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> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> From: wangleihello@...
> Date: Mon, 17 Aug 2009 21:46:26 +0800
> Subject: [EnergyPlus_Support] HVAC Template
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> Hi,
> The HVAC Template objects are very useful for creating the HVAC siumlation model. But I have some quesitons on how to create the SDCAV or DDCAV system using the HVAC template objects. Based on the help document, There only are Simple ideal loads system, Package terminal air conditioner(PATC), Pacage terminal air-to-air heat pump (PTHP) systems,Pacakged and split system and VAV system.
> Onyone can tell me how to create the SDCAV and DDCAV system usint template objects
> Thanks
> Lei Wang
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> ûÓйã¸æµÄÖÕÉíÃâ·ÑÓÊÏä,www.yeah.net
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> _________________________________________________________________
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