Re: [EnergyPlus_Support] Re: Simulating Chilled Beams Equipment

[Fred Buhl <wfbuhl@xxxxxxx>]

At the abstract system level, there isn't much difference. At the detailed physical component level, there is
quite a difference: the heat exchangers are modeled and behave differently. The chilled beam model
has some nice features: it will tell you how many (and what length) chilled beamsd you need for
your design load. The chilled beam models are based on semi-physical models fit to data from
actual units.

Fred Buhl

aymericnovel wrote:

Hi,

I don't really understand what is different between a chilled beam 
model and the 4pipe:induc model. 

Thanks
Aymeric

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Fred Buhl <wfbuhl@...> 
wrote:
  

The chilled beam model used in (for example) Doe-2 is convective 
    

only. A 
  

similar effect can
be obtained in EnergyPlus by using a central forced air system with 
    

4 pipe
  

induction terminal units (SINGLE DUCT:CONST VOLUME:4 PIPE INDUC).

The chilled beam model in EnergyPlus is overdue; it will be 
    

implemented 
  

in the
near future.

Fred Buhl

Nuno Costa Brandão wrote:
    

Dear Group Supporter's,

I´m simulating a Multi-Story building which uses "Chilled Beams"
equipment. What is the best approach to simulate this kind of
equipment in EnergyPlus?

Thanks in advance
Nuno Brandao







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