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RE: [EnergyPlus_Support] Re: outside air intake cacl
Thanks Don and JV Dirkes,
I set up a new object for CONTROLLER: VENTILATION: MECHANICAL to specify
Zone wise OA Flow rate/person + flow rate /m2
This works in addition to the OA Economiser. The minimum of which ever
ids greater is supplied.
Minu Agarwal
CoSA, Buro Happold Consulting Engineers PC
100 Broadway
New York, NY 10005
USA
Telephone: +1 212 334 2025
Fax: +1 212 334 5528
________________________________
From: EnergyPlus_Support@xxxxxxxxxxxxxxx
[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Don Shirey
Sent: Friday, March 14, 2008 4:11 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Re: outside air intake cacl
Look at the Controller:Outside Air and Ventilation:Mechanical objects in
the Input Output Reference document and see if these meet your needs.
JV Dirkes II wrote:
> Dear Minu,
>
> Per the I/O Reference,
>
> "Flow/person means the program will use the input from the field
> outside air flow per person and the maximum occupancy."
>
> That sounds like it's fixed according to the highest occupancy level
> and does not change. If you are trying to make OA modulate with
> occupancy, you'll need another approach. (but I haven't tried that
> yet with EPlus, so I cannot offer any suggestions.)
>
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx
<mailto:EnergyPlus_Support%40yahoogroups.com> , "Minu Agarwal"
> <Minu.Agarwal@...> wrote:
>
>>
>>
>> Hi all,
>>
>> Can some one please guide me on how to define and control the outdoor
>> air in a Compact HVAC system?
>>
>>
>>
>> I have set the outdoor air method to "flow/person" at the zone level.
>> The occupancy profiles are set. However the results show a constant
>> volume flow rate of mechanical ventilation air intake. Shouldn't the
>> outside air intake vary with the occupancy? What other
schedules/objects
>> may be effecting the calculation of outdoor air flow?
>>
>> Please help,
>>
>> Minu Agarwal
>>
>> CoSA, Buro Happold Consulting Engineers PC
>> 100 Broadway
>> New York, NY 10005
>> USA
>> Telephone: +1 212 334 2025
>> Fax: +1 212 334 5528
>>
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