[Equest-users] Excessive pumping power consumption

[PKConsulting]

Javed,  I had a similar issue with high pumping energy on a model last year.    Send us your .pd2 and .inp and weather file and I can run it on my computer and see if I can help you find the issue that is pushing your model results too high.

Pasha
Ph: 308-763-1593

> On Dec 5, 2013, at 4:53 AM, Javed Iqbal <eee.javed at gmail.com> wrote:
> 
> Hi,
> 
> Continuing to the above problem, I've generated hourly kWh consumption for all pumps and found that pump power in "Annual Energy Consumption End use report" is almost double than the summation of hourly pumps kWh consumption which includes Primary, Secondary and Condenser pumps. 
> 
> Does eQuest reports all pumping power (Primary, Secondary and Condenser pumps) in pumps & auxiliary section?
> 
> I would appreciate any help on this.
> 
> Thanks in Advance!
> 
> 
> 
> 
> 
> 
>> On Thu, Dec 5, 2013 at 8:35 AM, zhaoyongqing1987 <zhaoyongqing1987 at 126.com> wrote:
>> you can set pump schedule in chilled water loop to force pump running as per building operating hours .
>> 
>> yongqing zhao
>> 
>> 
>> At 2013-12-04 05:12:08,"John Aulbach" <jra_sac at yahoo.com> wrote:
>> Then there is a cooling load that is not shutting off. A space on 24/7? Send the .INP and .PD2. And version number. Not all of us have gone to 3.65.
>>  
>> John
>> 
>> From: Javed Iqbal <eee.javed at gmail.com>
>> To: John Aulbach <jra_sac at yahoo.com> 
>> Cc: equest-users <equest-users at lists.onebuilding.org> 
>> Sent: Tuesday, December 3, 2013 1:08 PM
>> Subject: Re: [Equest-users] Excessive pumping power consumption
>> 
>> Yes, All the chilled water loop operation is on demand. As such there is no heating so all the problem is on chilled water pump.
>> 
>> Thanks!!
>> 
>> 
>> On Tue, Dec 3, 2013 at 4:01 PM, John Aulbach <jra_sac at yahoo.com> wrote:
>> Javel:
>>  
>> Did you put the entity (chiller, boiler) that the pump is serving on DEMAND? Otherwise, the pump will never stop.
>>  
>> John R. Aulbach, PE
>> 
>> From: Javed Iqbal <eee.javed at gmail.com>
>> To: equest-users <equest-users at lists.onebuilding.org> 
>> Sent: Tuesday, December 3, 2013 12:58 PM
>> Subject: [Equest-users] Excessive pumping power consumption
>> 
>> Dear All,
>> 
>> I'm simulating a large commercial building for LEED compliance. There i am facing a major issue in pumping power annual consumption. The proposed case pumping power is almost 7 times higher than the ASHRAE baseline case which  has great impact on my overall anticipated savings. I've generated hourly report to see the pump operations power and found propose case pump is running all year round whereas baseline is running as per building operating hours. I've thoroughly checked all the schedules assigned and it seems fine to me. My gut feeling is there is some load which is driving the pump to run throughout the year. I would appreciate if someone can give expert advice to troubleshoot this.
>> 
>> 
>> Thanks in Advance!!
>> 
>> -- 
>> 
>> 
>> Javed Iqbal, LEED AP, CEA
>> Sr. Energy Analyst 
>> 
>> 
>> 
>> 
>> 
>> 
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>> 
>> 
>> 
>> 
>> -- 
>> 
>> 
>> Javed Iqbal, LEED AP, CEA
>> Sr. Energy Analyst 
> 
> 
> 
> -- 
> 
> 
> Javed Iqbal, LEED AP, CEA
> Sr. Energy Analyst 
> 
> 
> 
> 
> 
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