[esp-r] Re: Contaminant peaks

[Aizaz Samuel]

Radek,

It probably is a bug. Could you forward your models to me and I will take a 
look.

Regards,
Aizaz

On Wednesday 01 April 2009 12:36, Radek Górzeński wrote:
> Dear all!
>
> Thank you for your answers concerning contaminant peaks.
>
> I have tried smaller time steps - different combinations of zone and
> contaminant time steps - even as small as half minute - and received the
> same contaminant peaks. I also say no to 'hourly results integration' when
> I set the timestep.
>
> I have analyzed CO2 example cellular_contam in training folder. I have
> changed all occupant gain to same level in each period and created two sets
> of *.opr files: first with only one period a day, second with several
> periods (of same occupant gain). The differences and contaminant peaks can
> be easily seen in results, although results should be the same.
>
> In my model I try to use time dependant constant mass (#5) - a fixed mass
> (kg/s) of contaminant added within a user specified interval. With single
> period it works proper. But if I use more periods it looks like ESP-r
> multiplies contaminant mass flow by the number of left periods. For
> example, with 20 periods defined, I have to divide the #5 period constant
> mass flow value by 15 to get the proper contaminant level as a result, and
> so on. It works for single contaminant source model, but not for more
> sources one.
>
> Your advice will be appreciated.
>
> Thanks in advance!
>
> Radek Gorzenski
> Poznan University of Technology
>
>
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