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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Jonathan Curtin<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, January 29, 2008
9:41 AM<br>
<b><span style='font-weight:bold'>To:</span></b> mhaughey@earthlink.net; <st1:PersonName
w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Load Calcs
with Energy Simulation Software</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Thanks Michael and all who replied.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>The responses generally told me what I
expected to here, that most simulation software was not to the point yet where
people were comfortable in using it for load calculation and system sizing,
with the exceptions of Trace700 and Carrier's HAP4 as some have stated.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>The following issues seemed to resonate
strongest from the responses as to why <strong><b><i><font face=Arial><span
style='font-family:Arial;font-style:italic'>not</span></font></i></b></strong>
to use software like DOE2 or eQUEST for sizing equipment:</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>1) Difficulty in setting up model
(complicated, clumsy, more susceptible to errors) and cumbersome organization
of output</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>2) Model zoning generally combines similar
HVAC zones and does not require detailed zoning usually required in load
calculations (simulation models too detailed and will take too long to run)</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>DETAILED ZONING IS ALSO REQUIRED IN
SIMULATION MODELS (THE MORE DETAILED, THE BETTER). SOME SIMULATIONS MODELS WILL
EVEN REQUIRE MORE ZONES THAT WOULD A MODEL USED JUST FOR LOAD CALCULATIONS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>3) TMY weather data is generally not
representative of ASHRAE design conditions</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>4) Schedules (occupant, lighting,
equipment, etc.) for design conditions and average representative conditions
typical used in models are different</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>TO AVOID OVERSIZING (AND THE PART-LOAD
INEFFICIENCIES), IT IS SOMETIMES BETTER TO TAKE INTO ACCOUNT THE DIFFERENT
SCHEDULES IN THE COOLING LOAD CALCULATIONS AS ONE WOULD FOR A SIMULATION MODEL<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>5) There is optimism that software
advances will help improve capabilities in the future</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>For my $0.02:</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>1) I agree that for novice
(or even many intermediate) users, you would be asking for trouble if
relying upon the results of a simulation model for sizing equipment. Though
your chances of success improve as you learn to check, and double check the
output, and interpret results.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>2) Getting into a hundred+ zones in a
building could be difficult to manage, but for a Core and Shell building
with block loads it should not be excessively burdensome</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>3) eQUEST does allow for the creation of
Design Day weather conditions (directly adding to the .inp file is the only way
I know how to do it but there may be another way)</span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>THIS CAN BE DONE IN THE DETAILED EDIT MODE<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>4) eQUEST also allows for Cooling Design
Day schedules and Heating Design Day schedules (again by adding to .inp file)</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>THIS CAN BE DONE IN THE DETAILED EDIT MODE<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>5) I too look forward to advances in the
software that can take the detail that goes into a model and gain more from it
that just a few LEED credits.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>I have only spent little time looking at
this in detail, and this discussion has definitely been of great learning
experience.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Thanks!</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 color=blue face="Times New Roman"><span
style='font-size:12.0pt;color:blue'> <o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color="#4d4d4d" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#4D4D4D;font-weight:bold'>Jonathan
Curtin EIT, LEED AP</span></font></b><font color=blue><span style='color:blue'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face="Times New Roman"><span
style='font-size:12.0pt;color:blue'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color="#4d4d4d" face=Arial><span
style='font-size:14.0pt;font-family:Arial;color:#4D4D4D'>W Y
L I E</span></font><font size=4 color=blue face=Arial><span
style='font-size:14.0pt;font-family:Arial;color:blue'> <br>
</span></font><font size=1 color=maroon face=Arial><span style='font-size:8.0pt;
font-family:Arial;color:maroon'>C O N S U L T I N G<br>
E N G I N E E R S<br>
</span></font><font size=1 color=maroon face=Arial><span style='font-size:7.5pt;
font-family:Arial;color:maroon'><br>
</span></font><b><font size=1 color="#4c4c4c" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#4C4C4C;font-weight:bold'>6161 <st1:State
w:st="on">Savoy</st1:State>, <st1:address w:st="on"><st1:Street w:st="on">Suite</st1:Street>
700</st1:address> <st1:place w:st="on"><st1:City w:st="on">Houston</st1:City>,
<st1:State w:st="on">Texas</st1:State> <st1:PostalCode w:st="on">77036</st1:PostalCode></st1:place><br>
713.781.2526 713.781.2536 fax<br>
<br>
</span></font></b><font size=1 color=blue face=Arial><span style='font-size:
7.0pt;font-family:Arial;color:blue'><a href="http://www.wylieassociates.com/"
title="http://www.wylieassociates.com/">www.wylieassociates.com</a></span></font><font
size=2 color=blue face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:blue'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Michael Haughey<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, January 26, 2008
01:31 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] Load Calcs
with Energy Simulation Software</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Dan,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I would clarify two things. First is
that the load calculations are done, or should be done, for the design
condition, not the worst possible condition plus safety factor. For
cooling that normally means the ASHRAE 97-1/2% condition; for heating, the
2-1/2% condition. Some programs list adjustments as safety factors, but
there is really a higher purpose. One is a morning warm-up factor that
allows night setback energy savings to be realistically achievable.
Similarly, a cool-down factor can be applied to the cooling load and comes into
play often on Monday morning when the system has been off over the weekend and
the building mass has gotten quite warm. If you can’t cool it down,
then you can’t save as much energy by letting it get or stay warm for as
long prior to occupancy. The warm-up and cool-down factors are largely a
function of the space mass (the greater the mass, the larger the factor
needed). There is also the possibility of either adding capacity for
future building or process load additions or designing for the ability to add
the capacity in the future. It is best to do that in a modular way the
does not penalize efficiency until the future load is on-line.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Second is that load programs do have
schedules for people, lighting, appliances, and power equipment. It is
proper to set those realistically for the highest anticipated conditions, but
not higher. If set higher, or at 100%, then the result will have
compounding additional capacity (safety factors multiplied upon each other
resulting in grossly over-sized systems). Heating is traditionally
treated differently in that internal loads are normally not left on for the
design condition. It is possible to turn off all lights and internal
gains during a heating requirement. Cooling is a little different in that
some loads are simply never all on at the same time. People move
throughout the building and they also come and go, so diversity factors are
also appropriate.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I would expect, or at least want, a
program that does both load calculation and energy modeling to be able to
account for morning warm-up and cool-down (including after a power outage) by
sizing the systems to have sufficient reserve capacity to recover in a
reasonable period of time (and have that time adjustable). It would need
to consider building mass, and look at setback/setup differentials vs. recovery
time and reserve capacity.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 color=navy face="Monotype Corsiva"><span
style='font-size:12.0pt;font-family:"Monotype Corsiva";color:navy'>Michael
Haughey,P.E., LEED AP<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Monotype Corsiva"><span
style='font-size:12.0pt;font-family:"Monotype Corsiva";color:navy'>Silvertip
Integrated Engineering Consultants</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Monotype Corsiva"><span
style='font-size:12.0pt;font-family:"Monotype Corsiva";color:navy'>303-650-1080</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Monotype Corsiva"><span
style='font-size:12.0pt;font-family:"Monotype Corsiva";color:navy'>mhaughey@earthlink.net</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Dan Katzenberger<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, January 25, 2008
11:09 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Load Calcs
with Energy Simulation Software</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jonathan,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>There are several differences between load calculation and
energy simulation programs, some of which others have mentioned. Some
other differences include:</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Summer load calculations are done at the worst summer design
conditions (outdoor air temperature, outdoor humidity, solar gain, etc.), and
all of the internal gains are assumed to be on 100% (e.g., people, lights,
equipment, etc.). Energy programs use schedules and may not have 100% of
the internal gains on during the peak summer conditions, thereby suggesting
smaller equipment sizes.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Winter load calculations are done at the worst winter design
conditions (outdoor air temperature, nighttime, etc.), and the internal gains
are all assumed to be 0% (e.g., no people, no lights, no equipment,
etc.). Energy programs use schedules, and may not have 100% of the
people, lights, and equipment off during peak winter conditions.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Some load programs allow the user to add a safety factor to
the heating and cooling loads (not just the equipment size). So the
heating/cooling load in your zone is increased, therefore your air supply cfm
is increased, your AHU is increased in size, your plant size is increased,
etc.). I don't know how to do this directly in any of the energy
analysis programs that I use.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Because of these and other differences, I have found that
energy modeling programs will give smaller equipment sizes than do load
programs. Engineers typically error on the side of safety, and
therefore they prefer to size equipment for the worst possible scenarios as
described above. When I was designing building mechanical systems, I
would never count on 25% of the lights being on at night when it's -20
degrees F outside so that I could reduce my boiler size. My loads program
would give me a larger boiler, whereas my energy modeling program would
give me a boiler sized as if the lights will be on. Also, the local TMY2
weather file that I use for energy modeling doesn't even have -20 degrees F as
an outdoor air temperature, and this is the temperature that many engineers use
to design their heating systems. M loads programs allow the outdoor
design conditions to be input directly.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Load programs require much less input than energy programs,
and generally don't require any special knowledge, art, or workarounds.
Energy modeling programs require much more input, require very specialized
knowledge and experience, and always require workarounds and creative inputs
(art) to get the correct results.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>All that being said, Trane's Trace 700 program does an
acceptable job of being both a loads program and an energy analysis
program, although it does have strengths and weaknesses in both areas. In
Trace, when running loads, you can disable the energy related
inputs. After you are satisfied that you have the correct loads, then you
can proceed to working on the energy parameters and inputs. You can easily
switch between running loads only and loads + energy at any time.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dan</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Daniel A. Katzenberger, P.E., CEM, LEED-AP</span></font> <font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Principal & Certified <st1:place w:st="on"><st1:PlaceName
w:st="on">Energy</st1:PlaceName> <st1:PlaceName w:st="on">Star</st1:PlaceName>
<st1:PlaceName w:st="on">Green</st1:PlaceName> <st1:PlaceType w:st="on">Building</st1:PlaceType></st1:place>
Engineer<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
<p class=MsoNormal><strong><b><font size=2 face="Maiandra GD"><span
style='font-size:10.0pt;font-family:"Maiandra GD"'>Engineering, Energy, and the
Environment, LLC</span></font></b></strong><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Maiandra GD"><span style='font-size:10.0pt;
font-family:"Maiandra GD"'>"<font color=lime><span style='color:lime'>The
Green Group</span></font>"</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><font size=1
face=Arial><span style='font-size:7.5pt;font-family:Arial'>420 North 5th
Street, Suite 305</span></font></st1:Street><font size=1 face=Arial><span
style='font-size:7.5pt;font-family:Arial'>, <st1:City w:st="on">Minneapolis</st1:City>,
<st1:State w:st="on">MN</st1:State> <st1:PostalCode w:st="on">55401-1348</st1:PostalCode></span></font></st1:address><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span style='font-size:7.5pt;
font-family:Arial'>(612) 327-4210</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Jonathan Curtin<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, January 25, 2008
3:25 PM</span></font><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] Load Calcs
with Energy Simulation Software</span></font><o:p></o:p></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello All,</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Would anyone out there like to share experiences or
precautions in using simulation models (particularly eQuest, DOE2.1e,
EnergyPlus) for load calculations? Any advantages/disadvantages, tricks,
or warnings in using these simulation models as opposed
to dedicated load calculation software like Elite's CHVAC? Any studies
comparing the two?</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color="#4d4d4d" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#4D4D4D;font-weight:bold'>Jonathan
Curtin EIT, LEED AP</span></font></b><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color="#4d4d4d" face=Arial><span
style='font-size:14.0pt;font-family:Arial;color:#4D4D4D'>W Y
L I E</span></font><font size=4 face=Arial><span style='font-size:
14.0pt;font-family:Arial'> <br>
</span></font><font size=1 color=maroon face=Arial><span style='font-size:8.0pt;
font-family:Arial;color:maroon'>C O N S U L T I N G<br>
E N G I N E E R S<br>
</span></font><font size=1 color=maroon face=Arial><span style='font-size:7.5pt;
font-family:Arial;color:maroon'><br>
</span></font><b><font size=1 color="#4c4c4c" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#4C4C4C;font-weight:bold'>6161 <st1:State
w:st="on">Savoy</st1:State>, <st1:address w:st="on"><st1:Street w:st="on">Suite</st1:Street>
700</st1:address> <st1:place w:st="on"><st1:City w:st="on">Houston</st1:City>,
<st1:State w:st="on">Texas</st1:State> <st1:PostalCode w:st="on">77036</st1:PostalCode></st1:place><br>
713.781.2526 713.781.2536 fax<br>
<br>
</span></font></b><font size=1 face=Arial><span style='font-size:7.0pt;
font-family:Arial'><a href="http://www.wylieassociates.com/"
title="http://www.wylieassociates.com/">www.wylieassociates.com</a></span></font><o:p></o:p></p>
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