Re: [EnergyPlus_Support] Capacity Limit

["Michael J. Witte" <mjwitte@xxxxxxxx>]

Alexander:

The only way I can think of to limit cooling capacity is to use a 
chilled water system.  A fan coil unit would probably be the easiest. 
 Use purchased chilled water to serve the chilled water supply loop, 
because it has a fixed capacity limit.  When the limit is reached, 
the chilled water temperature will rise above setpoint and limit the 
total cooling which can be delivered to the space.  There is some lag 
in the chilled water loop, so you may see some small variations in 
cooling capacity when the system is at the limit, but this is the 
closest thing I can think of.

Mike



On 5 Mar 2003, at 9:50, Alexander Beisteiner wrote:

> Dear E+ User
> I would like to limit the cooling and heating capacity of a system. On
> the one hand, applying an electric baseboard heater, the nominal
> capacity can be limited. On the other hand, in the case of a DX
> cooling coil, the rated capacity refers to design conditions but the
> effective capacity at a time step (output variable) can be beyond the
> rated one, as Ned and Don already mentioned in an earlier mail. What
> system allows specifying a cooling capacity limit that cannot be
> exceeded in the simulation run?
> 
> I am looking forward to your response.
> Alexander  
> 
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