Heat source on a water loop

asked 2015-07-15 23:27:16 -0600

bryane
171 ●2

updated 2015-11-12 15:39:00 -0600

I'd like to model heat reclaim by adding a constant heat source on a water loop. I don't want to model a heat source in a zone that passes through the air loop to the water loop.

Is this possible in OpenStudio / E+ (even if using a work-around)? The only thing I can think of is to add a pump with very low efficiency, and all of the inefficiency going into the water as heat.

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@bryane I changed your unique tag to the existing and less general 'heat-recovery'.

MatthewSteen ( 2015-07-16 07:47:18 -0600 )edit

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2 Answers

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answered 2015-07-16 09:20:55 -0600

Ivan Korolija

flag of United Kingdom of Great Britain and Northern Ireland

911 ●3 ●7

Alternative to use of EMS user-defined component, as suggested by Archmage, is to define the load on a loop's demand side with the LoadProfile:Plant object

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Thank you Ivan and Archmage. These look like E+ objects. Do you know any way to do this in OpenStudio?

bryane ( 2015-07-16 09:51:08 -0600 )edit

LoadProfilePlant is expected in OpenStudio 1.9

Kyle Benne ( 2015-07-16 13:51:37 -0600 )edit

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answered 2015-07-16 08:52:34 -0600

Archmage

7185 ●3 ●11

If you want to add the heat to the supply side of plant loop, you could use DistrictHeating. Just set the nominal capacity to the constant source you want and setup the operation scheme and setpoints so it runs all the time.

If you want to add the heat to the demand side of a plant loop you could use EMS with a user-defined plant component, input object PlantComponent:UserDefined.