[EnergyPlus_Support] Re: Modelling VRV system

["fm1n0" <francisco.minoyetti@xxxxxxxxxxxxxxxxxxxxx>]

Hi.
I'm attempting the approximate-VRF method mentioned below. 
COIL:COOL/HEAT:DX:MULTISPEED
1. Should the rated conditions be the same for all speeds?
2. Curves: are they defined by E+ or user-defined?

InputOutput p.1477
"rating point (the air entering the cooling coil at 26.7°C drybulb/19.4°C wetbulb and air entering the outdoor condenser coil at 35°C drybulb/23.9°C wetbulb)"
InputOutput p.1514
"the multispeed coil object is described by specifying the performance at different operating speeds at rated conditions"

thanks

Francisco

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "alberto" <ahneto@...> wrote:
>
> Dear Mark,
> 
> The four step variation I mentioned is related to the menu COIL:COOLING:DX:MULTISPEED where we can set 04 different speeds where the model of such coil can be simulated. For each speed, you can provide all the parameters that can represent the coil but it is different from a VRF because the system works in a continuous variation of these parameters but I think it is the closest model EnergyPlus have at the moment.
> 
> Alberto
> 
> ----- Original Message ----- 
>   From: Zoeteman, Mark R. 
>   To: ahneto@... 
>   Cc: EnergyPlus_Support@xxxxxxxxxxxxxxx 
>   Sent: Monday, May 24, 2010 11:40 AM
>   Subject: [EnergyPlus_Support] Modelling VRV system
> 
> 
> 
> 
> 
>   Alberto,
> 
>   Is following page 14 from "Tips and Tricks for Using EnergyPlus" what you are referring to model VRV system? I don't see reference to a four stepped variation you referred to in your response to Felipe Agustin.
> 
>   Mark Zoeteman, FTC&H
>




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