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

[Yazan Abukhait]

So no real savings from vfds as the baseline is equiped with them too...
Thanks for your feedback mates
On Sep 13, 2012 4:04 AM, "Bobby Sy" <rsg4999 at gmail.com> wrote:

> 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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