[Equest-users] Question regarding fuel use

Fri Jun 26 11:45:31 PDT 2015

Thank you Ari and Bill!

I figured MBTU was million BTU.  The thing that threw me off was that summary report showing 9 zeros!  But that was single digits too which means both translate to 5.8935 billion BTU’s.

Or 5,893.5 MBTU like you say!

See my  attached PSE report for Fuel Meter 1.  It sais..

MBTU                           5893
MAX MBTU/HR           2.0
MON/DY                     1/13
PEAK ENDUSE              2.0
PEAK PCT                      100

So wouldn’t this translate to 2.0 referring to MBTU/HR and not KBTU/HR?

It just doesn’t show the units of demand on BEPS or PS-E reports (just sais “peak enduse”).  But the number (2.0) is the same as max MBTU/HR so I assumed that to be the unit of demand.

I should note that this project is in Alaska so the fuel usage in the baseline is higher than normal.  The models go through -40 to -50 temperatures at one point for heating.

So it definitely puts a big demand on the PSZ systems.

Fortunately, I already had my “fuel meter type” to fuel-oil in both models and my BTU/unit is already good to go also (like Bill showed in his screen capture).

-Chris

From: Greenberg, Ari [mailto:AGreenberg at brplusa.com]
Sent: Friday, June 26, 2015 5:13 AM
To: Chris Baker
Subject: RE: Question regarding fuel use

Hi Chris –

Not sure if anyone responded yet, but I’ll give it a shot:

MBTU is million BTU, so 5893.5 MBTU = 5,893.5 million BTU or 5.8935 billion Btu (hence the graph).  If LEED requires kBtu = 1,000 Btu, divide MBTU by 1,000.
The brain-hurting one is that for demand MBH is kBtu/hr, not MBTU/hr (in this case old latin M = 1,000 thing, not M = million) – not quite sure where you got 2.0 MBTU/HR = MBH, it should be 1 MBtu/hr = 1000 MBH.

By the way, it is possible to choose your own units for your meters in the “Basic Specifications” of the fuel meter window.  The energy and demand “label” numbers correspond to the conversion table in the LV-M report.  For example 64 and 65 are KBTU/HR and KBTU, respectively – you would just have to input the correct Btu/unit (in that case 1,000).

Hope this helps,
Ari

[[BR+A]]

Ari Greenberg
HVAC Engineer

Bard, Rao + Athanas Consulting Engineers, LLC
10 Guest St., 4th Floor  |  Boston, Massachusetts 02135
e agreenberg at brplusa.com<mailto:agreenberg at brplusa.com>   t 617.925.8298   |   www.brplusa.com<http://www.brplusa.com>
Boston  |   New York  |   Philadelphia  |   DC  |   Miami  |   Chicago  |   St. Louis

INNOVATION |  EXPERIENCE |  PROVEN SUCCESS

This email and any files transmitted with it are confidential and intended solely for the addressee. If you are not the named addressee you should not disseminate, distribute, copy or alter this email.

P  Please consider the environment before printing this e-mail

[[Facebook]]<https://www.facebook.com/BardRaoAthanas>[[LinkedIn]]<https://www.linkedin.com/company/br-a-consulting-engineers>[[twitter]]<https://twitter.com/BRplusA>

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Chris Baker
Sent: Thursday, June 25, 2015 9:34 PM
To: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: [Equest-users] Question regarding fuel use

My PS-F reports for fuel use is in Gallons with peak demand in Gallons/Minute.

My PS-E reports for fuel use is in MBTU with peak demand in MBTU/Hr.

The dropdown menus in the LEED online forms don’t give you the option to input fuel capacities in Gallons or MBTU.  Hence my confusion.

For LEED online
My units of energy = kbtu
My units of demand = MBH

SO the conversions need to be done as follows for entry to leed online…

fuel use:  5893.5 MBTU – kbtu
The conversion for demand:  2.0 MBTU/HR – MBH

At first I thought 1 MBTU = 1 million BTU’s ??

But looking at my summary reports I see the MBTU fuel use at 5.8935 on the graph, then it sais: (x000,000,000)

This implies that 1 MBTU = 1 Billion BTU’s but I’m not sure if this is correct?

Plus, my brain hurts.

Chris Baker
CCI CAD Drafter

________________________________

CCI-Alliance Confidentiality notice: This message is intended only for the person to whom addressed in the text above and may contain privileged or confidential information. If you are not that person, any use of this message is prohibited. We request that you notify us by reply to this message, and then delete all copies of this message including any contained in your reply. Thank you.

________________________________

CCI-Alliance Confidentiality notice: This message is intended only for the person to whom addressed in the text above and may contain privileged or confidential information. If you are not that person, any use of this message is prohibited. We request that you notify us by reply to this message, and then delete all copies of this message including any contained in your reply. Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20150626/d6d37575/attachment-0005.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.gif
Type: image/gif
Size: 2532 bytes
Desc: image001.gif
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20150626/d6d37575/attachment-0020.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.gif
Type: image/gif
Size: 1317 bytes
Desc: image002.gif
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20150626/d6d37575/attachment-0021.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.gif
Type: image/gif
Size: 1295 bytes
Desc: image003.gif
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20150626/d6d37575/attachment-0022.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.gif
Type: image/gif
Size: 1351 bytes
Desc: image004.gif
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20150626/d6d37575/attachment-0023.gif>