VRF- Fluid T control - Cooling Coil Sensible

asked 2017-08-24 09:34:00 -0600

JLS's avatar

updated 2017-08-25 09:02:00 -0600

Two questions for VRF "models 2" (VRF-FluidCtrl).

  1. Is it possible to introduce my own curve of evaporation temperature for refrigerant?.

  2. Does the algorithm for indoor unit calculates the cooling coil sensible based on the evaporation temperature of the refrigerant?. It is said, while higher temperature of evaporation greater relation sensible/total.

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@JLS, I am not sure if I totally understand your question so I'm just commenting instead of providing an answer. 1. I am not sure if by evaporation temperature curve you mean your own refrigerant properties (different saturation temperature, etc) but if you do, you can use the FluidProperties objects to define a custom refrigerant. 2. Same, I'm not sure if I understand you question but as far as I know, the indoor unit temperature is either held constant or can be variable. If variable ...

Jeremy's avatar Jeremy  ( 2017-10-19 13:16:41 -0600 )edit

... I would suggest to refer to the engineering manual which shows how the evaporating temperature is calculated based on the zone sensible cooling load. I hope this can help!

Jeremy's avatar Jeremy  ( 2017-10-19 13:16:52 -0600 )edit

Thanks Jeremy. But, I think I could not explain my question correctly. My English is very bad.

What I want to simulate is:



JLS's avatar JLS  ( 2017-10-23 00:41:57 -0600 )edit

@JLS, If you are wondering if this is the right EnergyPlus object, it is. I would refer to the engineering manual and input/output reference guide to see how to use it. There's also an example file ("VariableRefrigerantFlow_FluidTCtrl_5Zone.idf") in the ExampleFiles folder in the EnergyPlus installation directory.

Jeremy's avatar Jeremy  ( 2017-10-23 11:26:08 -0600 )edit