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<p class="MsoPlainText">Here are details from the help screen:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><img width="911" height="224" id="Picture_x0020_1" src="cid:image003.png@01D10726.98AA14D0"><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Keith Swartz, PE | Senior Energy Engineer<o:p></o:p></p>
<p class="MsoPlainText">Seventhwave | Madison.Chicago.Minneapolis<o:p></o:p></p>
<p class="MsoPlainText">608.210.7123 seventhwave.org<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-----Original Message-----<br>
From: Porter, Frederick NOR [mailto:fporter@noresco.com] <br>
Sent: Wednesday, October 14, 2015 11:46 AM<br>
To: Nathan Miller <nathanm@rushingco.com>; Daniel Knapp <danielk@arborus.ca><br>
Cc: equest-users@lists.onebuilding.org<br>
Subject: Re: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY</p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">All,<o:p></o:p></p>
<p class="MsoPlainText">Bill describes how to do this easily in his initial reply. The MIN-AIR-SCH at the system level over-rides the zone OA inputs (Actually, I'm not positive what happens if there are zone exhaust fans in the model! I avoid these like the
plague.) MOST AHU models should have a SYSTEM MIN-AIR-SCH which is either -999 (default, model uses sum of zone OA flows, or system MIN-OA if there are no zone OA flows) during occupied periods or 0.0 (no econ, no damper leakage) or 0.01-0.03 or so (leakage,
economizer allowed) for hours when the system can cycle on during unoccupied periods. Changing this one system schedule to one with zero or 0.01 at all hours is absolutely the easiest way to do a run with "no" OA. It is very easy to do as a "parametric."
<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Fred<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-----Original Message-----<o:p></o:p></p>
<p class="MsoPlainText">From: Nathan Miller [<a href="mailto:nathanm@rushingco.com"><span style="color:windowtext;text-decoration:none">mailto:nathanm@rushingco.com</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">Sent: Wednesday, October 14, 2015 7:35 AM<o:p></o:p></p>
<p class="MsoPlainText">To: Daniel Knapp; Porter, Frederick NOR<o:p></o:p></p>
<p class="MsoPlainText">Cc: <a href="mailto:equest-users@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">equest-users@lists.onebuilding.org</span></a><o:p></o:p></p>
<p class="MsoPlainText">Subject: [External] RE: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Depending on your system, you can allow economizer by assigning an arbirtrary, tiny OA CFM (like 0.01 CFM) to the zone. Then there is essentially no OA being delivered in normal operation, but economizer can be engaged.
<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Nathan Miller, PE, LEED AP BD+C - Mechanical Engineer/Senior Energy Analyst RUSHING | D 206-788-4577 | O 206-285-7100
<a href="http://www.rushingco.com"><span style="color:windowtext;text-decoration:none">www.rushingco.com</span></a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-----Original Message-----<o:p></o:p></p>
<p class="MsoPlainText">From: Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">mailto:equest-users-bounces@lists.onebuilding.org</span></a>] On Behalf Of Daniel Knapp<o:p></o:p></p>
<p class="MsoPlainText">Sent: Wednesday, October 14, 2015 9:32 AM<o:p></o:p></p>
<p class="MsoPlainText">To: Porter, Frederick NOR <<a href="mailto:fporter@noresco.com"><span style="color:windowtext;text-decoration:none">fporter@noresco.com</span></a>><o:p></o:p></p>
<p class="MsoPlainText">Cc: <a href="mailto:equest-users@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">equest-users@lists.onebuilding.org</span></a><o:p></o:p></p>
<p class="MsoPlainText">Subject: Re: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">There should be a way to run without outdoor air while still allowing economizer operation. If you set the outdoor air to zero at the zone level, and allow for an economizer at the system level, I imagine that eQUEST would do this. It
would be worth looking at the hourly reports for the OA fraction at the system level to confirm that the outdoor air flow rate is behaving as expected.
<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">All the best,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Dan<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-<o:p></o:p></p>
<p class="MsoPlainText">Daniel Knapp, PhD, PPhys, LEED(r) AP O+M <a href="mailto:danielk@arborus.ca">
<span style="color:windowtext;text-decoration:none">danielk@arborus.ca</span></a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Arborus Consulting<o:p></o:p></p>
<p class="MsoPlainText">Energy Strategies for the Built Environment <a href="http://www.arborus.ca">
<span style="color:windowtext;text-decoration:none">www.arborus.ca</span></a><o:p></o:p></p>
<p class="MsoPlainText">76 Chamberlain Avenue<o:p></o:p></p>
<p class="MsoPlainText">Ottawa, ON, K1S 1V9<o:p></o:p></p>
<p class="MsoPlainText">Phone: (613) 234-7178 ext. 113<o:p></o:p></p>
<p class="MsoPlainText">Fax: (613) 234-0740<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">> On Oct 13, 2015, at 7:37 PM, Porter, Frederick NOR <<a href="mailto:fporter@noresco.com"><span style="color:windowtext;text-decoration:none">fporter@noresco.com</span></a>> wrote:<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Mark,<o:p></o:p></p>
<p class="MsoPlainText">> I'd stick with Bill's original suggestion. Run the model with "zero" OA and compare to the "proposed" case. Seem's close enough to me... As Joe notes, in the end there can be some ambiguity about exactly how the total hourly coil
load should be apportioned. If you are curious about how the model works on an hourly basis, generate some hourly AHU reports (coil loads, MA and SA conditions), from the two runs. Do not just compare L- and S- loads reports. L- reports are at a constant temp,
and in addition to OA, do not include any "false" loads from overcool/reheat, fan heat... I'm sure there are more.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> One thing to check first; make sure your coil capacity with the OA is large enough to fully condition the air at each timestep. Also, for models that use it, set the "cooling coil/cool control range" to 0.1F or so to avoid possible
small changes in the coil leaving air temps between runs.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> I think Trace and HAP provide a "ventilation load" in reports they probably do some intermediate calculation each hour for the AHU w/ and w/o OA. They may even allocate it per zone.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Food for thought: In buildings without high exhaust flows, some of the "OA ventilation load," imposed by OA at the AHU, actually offsets some infiltration load that would occur throughout the building if that OA was not brought in,
or ended up in an ERV somehow. "Simple" simulation programs attempt to account for this with schedules that are applied to infiltration based on initial AHU operating schedules, however those infiltration schedules are not directly linked to OA schedules.
I've seen "efficient" buildings that were not adequately pressurized because the nifty heat recovery ventilator exhaust fan used up all the air that would otherwise kept the building pressurized.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Fred<o:p></o:p></p>
<p class="MsoPlainText">> Fred Porter, BEMP, LEED(c) AP<o:p></o:p></p>
<p class="MsoPlainText">> Principal Engineer<o:p></o:p></p>
<p class="MsoPlainText">> Sustainability Services<o:p></o:p></p>
<p class="MsoPlainText">> NORESCO<o:p></o:p></p>
<p class="MsoPlainText">> 2540 Frontier Ave, Suite 100, Boulder, CO 80301 Phone 303.459.7425 |
<o:p></o:p></p>
<p class="MsoPlainText">> Cell 303.748.4536 | <a href="mailto:fporter@noresco.com">
<span style="color:windowtext;text-decoration:none">fporter@noresco.com</span></a>
<a href="http://www.noresco.com"><span style="color:windowtext;text-decoration:none">www.noresco.com</span></a><o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Confidentiality Note:<o:p></o:p></p>
<p class="MsoPlainText">> Dissemination, distribution or copying of this e-mail or the information herein by anyone other than the intended recipient, or an employee or agent of a system responsible for delivering the message to the intended recipient, is prohibited.
If you are not the intended recipient, please inform the sender and delete all copies.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> From: Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">mailto:equest-users-bounces@lists.onebuilding.org</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">> On Behalf Of Joe Huang<o:p></o:p></p>
<p class="MsoPlainText">> Sent: Tuesday, October 13, 2015 1:58 PM<o:p></o:p></p>
<p class="MsoPlainText">> To: <a href="mailto:equest-users@lists.onebuilding.org">
<span style="color:windowtext;text-decoration:none">equest-users@lists.onebuilding.org</span></a><o:p></o:p></p>
<p class="MsoPlainText">> Subject: [External] Re: [Equest-users] % LOAD ATTRIBUTED TO OA
<o:p></o:p></p>
<p class="MsoPlainText">> DELIVERY<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> There are so many differences between what's reported in the LS-D and SS-D that I would not use this method for anything more than an extremely crude look at the load attributable to OA. In Loads, all the heat flows are calculated
at the reference temperature (TLOADS) and counted as Cooling if the net space load that hour is positive or Heating if it's negative. In Systems, these loads are corrected to the actual zone temperature and the load from OA and interzone heat transfer added,
while solving for the zone temperature. If the zone temperature is outside the thermostat deadband, a deficit would be considered a heating load and an excess as a cooling load on the HVAC system.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> There's a much better way to get the OA load, but it would take some work, either with a User-Function, which unfortunately is not available in DOE-2.2 (although I've heard that Expressions could do much the same thing...), or by post-processing
hourly outputs. Print out an Hourly Report with the following parameters: Outdoor Air Temp (To), Room Air Temperature (Trm), Outside Air CFM, and the Zone Load. Then, use Excel or awk ( my favorite :-) :-) ) to calculate the load due to the OA as (Trm-To)*CFM*Cp
of air . This can then be compared to the Zone Load, but you'll notice some anomalies such as during the swing season when the OA Load is actually "free cooling". You'll then have to decide how to attribute the OA heat flows to the HVAC loads, which can
be tricky. <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Various people, including me, Dan Fisher, Jason Glazer, etc., have
<o:p></o:p></p>
<p class="MsoPlainText">> wandered into this area of deriving component loads, and have found
<o:p></o:p></p>
<p class="MsoPlainText">> that it ultimately raises philosophical questions. :-) :-)<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Joe<o:p></o:p></p>
<p class="MsoPlainText">> Joe Huang<o:p></o:p></p>
<p class="MsoPlainText">> White Box Technologies, Inc.<o:p></o:p></p>
<p class="MsoPlainText">> 346 Rheem Blvd., Suite 205A<o:p></o:p></p>
<p class="MsoPlainText">> Moraga CA 94556<o:p></o:p></p>
<p class="MsoPlainText">> <a href="mailto:yjhuang@whiteboxtechnologies.com"><span style="color:windowtext;text-decoration:none">yjhuang@whiteboxtechnologies.com</span></a><o:p></o:p></p>
<p class="MsoPlainText">> <a href="http://weather.whiteboxtechnologies.com"><span style="color:windowtext;text-decoration:none">http://weather.whiteboxtechnologies.com</span></a> for simulation-ready weather
<o:p></o:p></p>
<p class="MsoPlainText">> data<o:p></o:p></p>
<p class="MsoPlainText">> (o) (925)388-0265<o:p></o:p></p>
<p class="MsoPlainText">> (c) (510)928-2683<o:p></o:p></p>
<p class="MsoPlainText">> "building energy simulations at your fingertips"<o:p></o:p></p>
<p class="MsoPlainText">> On 10/13/2015 9:02 AM, Keith Swartz wrote:<o:p></o:p></p>
<p class="MsoPlainText">> Good point, David. The system report adds more than just ventilation load to the space load.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Keith Swartz, PE | Senior Energy Engineer Seventhwave |
<o:p></o:p></p>
<p class="MsoPlainText">> Madison.Chicago.Minneapolis<o:p></o:p></p>
<p class="MsoPlainText">> 608.210.7123 seventhwave.org<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> From: David Eldridge [<a href="mailto:DEldridge@grummanbutkus.com"><span style="color:windowtext;text-decoration:none">mailto:DEldridge@grummanbutkus.com</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">> Sent: Tuesday, October 13, 2015 10:47 AM<o:p></o:p></p>
<p class="MsoPlainText">> To: Keith Swartz <<a href="mailto:KSwartz@seventhwave.org"><span style="color:windowtext;text-decoration:none">KSwartz@seventhwave.org</span></a>>;
<a href="mailto:Mark.Hallman@rwdi.com"><span style="color:windowtext;text-decoration:none">Mark.Hallman@rwdi.com</span></a><o:p></o:p></p>
<p class="MsoPlainText">> Subject: RE: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> I'm not sure if that will exactly give the ventilation loads - the "L" reports are the building space loads, but the "S" reports will include other system effects such as fan heat, reheat, heat gain to the return air, so that the difference
might not exactly be a ventilation load, and might be pretty far from an OA-only load.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> If there is a preheat coil, you can set up a report to trend that coil's load if you are after the heating loads. You could trend the cooling coil load as well, but this is a function of economizer operation and outside air temperature
as well.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> David<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">>
<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP
<o:p></o:p></p>
<p class="MsoPlainText">> Grumman/Butkus Associates<o:p></o:p></p>
<p class="MsoPlainText">>
<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> From: Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">mailto:equest-users-bounces@lists.onebuilding.org</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">> On Behalf Of Keith Swartz<o:p></o:p></p>
<p class="MsoPlainText">> Sent: Monday, October 12, 2015 8:55 AM<o:p></o:p></p>
<p class="MsoPlainText">> To: <a href="mailto:equest-users@lists.onebuilding.org">
<span style="color:windowtext;text-decoration:none">equest-users@lists.onebuilding.org</span></a><o:p></o:p></p>
<p class="MsoPlainText">> Subject: Re: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Mark,<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Look at the differences between values in reports LS-D and SS-D. SS-D
<o:p></o:p></p>
<p class="MsoPlainText">> includes ventilation. LS-D does not. (The first letter "S" stands for
<o:p></o:p></p>
<p class="MsoPlainText">> "system." "L" is for "load," the load in the space.)<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Keith Swartz, PE | Senior Energy Engineer Seventhwave |
<o:p></o:p></p>
<p class="MsoPlainText">> Madison.Chicago.Minneapolis<o:p></o:p></p>
<p class="MsoPlainText">> 608.210.7123 seventhwave.org<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> From: Shaun Martin [<a href="mailto:smartin@shaunmartinconsulting.com"><span style="color:windowtext;text-decoration:none">mailto:smartin@shaunmartinconsulting.com</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">> Sent: Friday, October 09, 2015 12:13 PM<o:p></o:p></p>
<p class="MsoPlainText">> To: 'Mark Hallman' <<a href="mailto:Mark.Hallman@rwdi.com"><span style="color:windowtext;text-decoration:none">Mark.Hallman@rwdi.com</span></a>>; 'Bishop, Bill'
<o:p></o:p></p>
<p class="MsoPlainText">> <<a href="mailto:bbishop@pathfinder-ea.com"><span style="color:windowtext;text-decoration:none">bbishop@pathfinder-ea.com</span></a>>;
<a href="mailto:equest-users@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">equest-users@lists.onebuilding.org</span></a><o:p></o:p></p>
<p class="MsoPlainText">> Subject: Re: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Hi Mark,<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> You can use hourly reports to pull out the outside air volume (variable PO) plus the supply and return volumes and temperatures. Then off to a spreadsheet.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Or, if you're feeling ambitious, you could write an input function (see Topics).<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Shaun<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Shaun Martin LEED-AP, BEMP<o:p></o:p></p>
<p class="MsoPlainText">> Principal<o:p></o:p></p>
<p class="MsoPlainText">> Shaun Martin Consulting<o:p></o:p></p>
<p class="MsoPlainText">> #90 - 425 Carrall Street<o:p></o:p></p>
<p class="MsoPlainText">> Vancouver, BC V6B 6E3<o:p></o:p></p>
<p class="MsoPlainText">> p. 604-789-1095<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> From: Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">mailto:equest-users-bounces@lists.onebuilding.org</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">> On Behalf Of Mark Hallman<o:p></o:p></p>
<p class="MsoPlainText">> Sent: Wednesday, October 7, 2015 7:59 PM<o:p></o:p></p>
<p class="MsoPlainText">> To: 'Bishop, Bill' <<a href="mailto:bbishop@pathfinder-ea.com"><span style="color:windowtext;text-decoration:none">bbishop@pathfinder-ea.com</span></a>>;
<o:p></o:p></p>
<p class="MsoPlainText">> 'equest-users@lists.onebuilding.org'<o:p></o:p></p>
<p class="MsoPlainText">> <<a href="mailto:equest-users@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">equest-users@lists.onebuilding.org</span></a>><o:p></o:p></p>
<p class="MsoPlainText">> Subject: Re: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Thanks Bill, nice tip. Any way of parsing it out without running two simulations?<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Tx!<o:p></o:p></p>
<p class="MsoPlainText">> Mark.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> mark hallman<o:p></o:p></p>
<p class="MsoPlainText">> p.eng. leed ap bd&c<o:p></o:p></p>
<p class="MsoPlainText">> project engineer<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <a href="mailto:mdh@rwdi.com"><span style="color:windowtext;text-decoration:none">mdh@rwdi.com</span></a><o:p></o:p></p>
<p class="MsoPlainText">> 519 823 1311 x2494<o:p></o:p></p>
<p class="MsoPlainText">> RWDI: the science of buildings, structures & the environment. See what we do HERE.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> From: Bishop, Bill [<a href="mailto:bbishop@pathfinder-ea.com"><span style="color:windowtext;text-decoration:none">mailto:bbishop@pathfinder-ea.com</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">> Sent: Wednesday, October 07, 2015 11:12<o:p></o:p></p>
<p class="MsoPlainText">> To: Mark Hallman; 'equest-users@lists.onebuilding.org'<o:p></o:p></p>
<p class="MsoPlainText">> Subject: RE: % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> One way would be to create a MIN-AIR-SCH with all hourly values set to 0 (or 0.001 to activate economizer), apply it to all SYSTEMs and use the difference in the outputs.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Regards,<o:p></o:p></p>
<p class="MsoPlainText">> ~Bill<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> William Bishop, PE, BEMP, BEAP, CEM, LEED AP | Pathfinder Engineers &
<o:p></o:p></p>
<p class="MsoPlainText">> Architects LLP Senior Energy Engineer <image001.jpg> <image002.jpg><o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> 134 South Fitzhugh Street Rochester, NY 14608<o:p></o:p></p>
<p class="MsoPlainText">> T: (585) 698-1956 F: (585) 325-6005<o:p></o:p></p>
<p class="MsoPlainText">> <a href="mailto:bbishop@pathfinder-ea.com"><span style="color:windowtext;text-decoration:none">bbishop@pathfinder-ea.com</span></a>
<a href="http://www.pathfinder-ea.com"><span style="color:windowtext;text-decoration:none">www.pathfinder-ea.com</span></a><o:p></o:p></p>
<p class="MsoPlainText">> <image003.png>Carbon Fee and Dividend - simple, effective, and market-based.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> From: Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">mailto:equest-users-bounces@lists.onebuilding.org</span></a>]<o:p></o:p></p>
<p class="MsoPlainText">> On Behalf Of Mark Hallman<o:p></o:p></p>
<p class="MsoPlainText">> Sent: Wednesday, October 07, 2015 10:59 AM<o:p></o:p></p>
<p class="MsoPlainText">> To: 'equest-users@lists.onebuilding.org' <o:p></o:p></p>
<p class="MsoPlainText">> <<a href="mailto:equest-users@lists.onebuilding.org"><span style="color:windowtext;text-decoration:none">equest-users@lists.onebuilding.org</span></a>><o:p></o:p></p>
<p class="MsoPlainText">> Subject: [Equest-users] % LOAD ATTRIBUTED TO OA DELIVERY<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Hi there,<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Is there a way to accurately parse out from the eQUEST output file the percentage of the cooling and heating load that is attributed to OA delivery? Any advice would be appreciated.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Thanks in advance!<o:p></o:p></p>
<p class="MsoPlainText">> Mark Hallman.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> mark hallman<o:p></o:p></p>
<p class="MsoPlainText">> p.eng. leed ap bd&c<o:p></o:p></p>
<p class="MsoPlainText">> project engineer<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> <a href="mailto:mdh@rwdi.com"><span style="color:windowtext;text-decoration:none">mdh@rwdi.com</span></a><o:p></o:p></p>
<p class="MsoPlainText">> 519 823 1311 x2494<o:p></o:p></p>
<p class="MsoPlainText">> RWDI: the science of buildings, structures & the environment. See what we do HERE.<o:p></o:p></p>
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