[Equest-users] Huge envelope changes having small affect onenergy savings

[Umesh Atre]

Could you also share the equest pd2 files so that someone may take a
look at the output?
>From the input files, it looks like the only changes you have are on the
u-value and air-changes/hr (?). No change on the wall/roof construction.
Also, looks like you are modeling a 3-4 story residential building.
 

________________________________

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Lee
Chorney
Sent: Wednesday, August 22, 2012 3:43 PM
To: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Huge envelope changes having small affect
onenergy savings


Hi Guys,

Here all the .inp files. 1.inp is the base and 2.inp is the proposed.

Thank you,

Lee


On Wed, Aug 22, 2012 at 12:48 PM, Lee Chorney
<leec at alliedconsulting.net> wrote:


	Hi All,
	
	
	I recently did a model where I had the same system in both base
and proposed but I changed the R-Value from 4 (base) to 20 (proposed). I
also changed the window U-value from .80 (base) to .35 (proposed). After
I did the run, I saw only a 5% savings between the heating and cooling
use in the model. When I looked at the loads I saw the base had twice as
much cooling and heating load than the proposed. Does any know why the
energy savings would only be 5% when you have a huge difference between
the cooling and heating loads?
	
	Thanks,
	
	Lee
	


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