[Equest-users] Would like to hear from you guys

[Bobby Sy]

You may disregard my email. Sorry I did not see your response to Yazan.

-Bob

On Thu, Sep 13, 2012 at 8:23 AM, Bobby Sy <rsg4999 at gmail.com> wrote:

> Is the central utility plant serving other buildings other than LEED
> candidate building? If it is, then the energy modeler should use the
> guidelines for district cooling / heating which will require him to add
> chilled water meter on both models then I believe the pump type including
> the chiller specifications would not matter in the energy  model anymore.
>
> You may search in the archive about modeling system with district cooling
> / heating and "Treatment of District or Campus Thermal Energy in LEED V2
> and LEED 2009 - Design & Construction."
> Hope that helps.
>
> -Bob
> On Thu, Sep 13, 2012 at 2:25 AM, Yazan Abukhait <yazan142us at gmail.com>wrote:
>
>> Dear all,
>>
>> I'm involved in a LEED project where my company have hired a LEED
>> consultant, among the buildings is an office building consisting of 6
>> stories, being fed from a central utility plant located within the project,
>> the base line is the same that of the proposed building ( system 8) except
>> that the VAV boxes are fan powered in the baseline. The mechanical engineer
>> modeling the project is insisting that he can show a minimum of 10% energy
>> savings by using variable speed pumps and AHUs and heat recovery, I believe
>> the heat recovery part, but using variable speed pumps and fans should also
>> being modeled for the baseline as well, isn't it the case? ASHRAE 90.1-2007
>> will not allow you to use constant speed pumps for pumps and fans even when
>> you use the LEED supplemental document for district cooling plants
>> treatment, would like to hear from you guys, and thanks in advance.
>>
>> Regards
>>
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>
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