eQuest Generated EFLH

9 posts / 0 new
Last post

Does anyone know if there is a report or means from eQuest to generate the EFLH (equivalent full load hours) for each schedule?
Colleague of mine believes VistualDOE was able to complete and hoping there is a comparable tool/report.

Thanks in advance.

Thanks,
DARIC R ADAIR PE, CEM, BEMP
Mechanical Engineer, Energy Analyst

Henderson Engineers
8345 Lenexa Drive, Suite 300 | Lenexa, KS 66214
Tel (913) 742-5530
daric.adair at hendersonengineers.com

hendersonengineers.com

Licensed in KS

Sending me large files? Please use Henderson File Share | TX ID #F-001236

________________________________

This email and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. This communication represents the originator's personal views and opinions, which do not necessarily reflect those of Henderson Engineers, Inc. If you are not the original recipient or the person responsible for delivering the email to the intended recipient, be advised that you have received this email in error, and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you received this email in error, please immediately notify administrator at hendersonengineers.com.

Daric Adair's picture
Offline
Joined: 2017-10-21
Reputation: 0

My best guess (assuming you want cooling for example) is to make a single chiller for your building (gotta be PLANT equipment). Figure out the peak cooling load from SS-D and size the chiller accordingly. Run the building. Look in PS-C, with 10% increments of load.
Multiply each 10% load increment (say chiller is 1000 ton, so 100 tons for 10%, 200 tons for 20%, etc) by the number of hours shown for that increment. Take the total ton-hrs and divide by the 1000 ton (for this example).
That should give you equivalent load hours.
John Aulbach, PE
On Wednesday, March 14, 2018, 2:27:48 PM PDT, Daric Adair via Equest-users wrote:

Does anyone know if there is a report or means from eQuest to generate the EFLH (equivalent full load hours) for each schedule?

Colleague of mine believes VistualDOE was able to complete and hoping there is a comparable tool/report.

?

Thanks in advance.

?

?

?

Thanks,

DARIC R ADAIR?PE, CEM, BEMP
Mechanical Engineer, Energy Analyst

Henderson Engineers
8345 Lenexa Drive, Suite 300??|??Lenexa, KS 66214
Tel (913) 742-5530??
daric.adair at hendersonengineers.com

hendersonengineers.com

Licensed in KS

Sending me large files? Please useHenderson File Share | TX ID #F-001236

?

This email and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. This communication represents the originator's personal views and opinions, which do not necessarily reflect those of Henderson Engineers, Inc. If you are not the original recipient or the person responsible for delivering the email to the intended recipient, be advised that you have received this email in error, and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you received this email in error, please immediately notify administrator at hendersonengineers.com.
_______________________________________________
Equest-users mailing list
http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
To unsubscribe from this mailing list send? a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG

John Aulbach's picture
Offline
Joined: 2011-09-30
Reputation: 1

Daric,

The space loads report (via File -> Export File ->) has schedule values
for select space internal loads starting in col AC, but I believe if you
have more than one schedule for a given end-use, this summary is not
correct, or represents a weighted-average.? I don't use this often, so
can't recall the behavior when there is more than one schedule defined
for a particular end-use.? This is the only EFLH summary I'm aware of,
and I believe it is an eQUEST function, not DOE-2.2.

-David

David Reddy4's picture
Offline
Joined: 2012-03-30
Reputation: 0

Hey Daric,

I'm on the same page with David. Space Loads export includes annual totals for equipment/plug loads and for lighting at a SPACE resolution, but there's no way to immediately calculate FLEH for a given annual schedule I'm aware of.

Short of loading/managing/manipulating schedules with an exterior spreadsheet (hint hint), I think the best advice I can give is to highlight a day schedule, swap to spreadsheet view, and copy that table (or the specific rows you want) into excel. From there you have to determine how many days per year each day type applies to the schedule(s) of interest, then it's just some summing and multiplying to arrive at your answer.

~Nick

[cid:image001.png at 01D3BC39.84240FF0]
Nick Caton, P.E., BEMP
Senior Energy Engineer
Regional Energy Engineering Manager
Energy and Sustainability Services
Schneider Electric

D 913.564.6361
M 785.410.3317
F 913.564.6380
E nicholas.caton at schneider-electric.com

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

[cid:image002.png at 01D3BC39.84240FF0]

Nicholas.Caton at schneider-electric.com's picture
Joined: 2016-02-26
Reputation: 0

John & all;

That could work for the plant equipment, but LEEDv4 is requesting EFLH for all annual schedules. We have a project that has 4 different main occupancy times/groups. Which cascades out to occupancy, lighting, fans, etc. Many, many schedules.

I received a separate suggestion to check under File>Export, but none of the 3 options there had anything like the EFLH.

LEED has a ?calculator? in their documentation, but its built arround different days/week (which also don?t align in this project). Something could be built in excel to handle this ? but I saw little need to recreate the wheel if eQuest/DOE2 does this automatically.

Thanks,
DARIC R ADAIR PE, CEM, BEMP
Mechanical Engineer, Energy Analyst

Henderson Engineers
Tel (913) 742-5530
daric.adair at hendersonengineers.com

Licensed in KS

Daric Adair's picture
Offline
Joined: 2017-10-21
Reputation: 0

What is the EFLH for lighting controlled by photo sensors? Fans that have VSDs? Etc.? To get accurate EFLH you would need hourly reports.

LEED has some really goofy reporting requirements.

Christopher R. Jones, P.Eng.
Technical Specialist
Sustainability & Energy

[cid:image001.png at 01D3BC45.E65F7FE0]
T +1 416-644-0252

2300 Yonge Street, Suite 2300
Toronto, ON M4P 1E4 Canada

wsp.com

Please consider the environment before printing...

Jones, Christopher2's picture
Joined: 2017-10-12
Reputation: 0

Oh, I agree, it?s screwy reporting requirements.
The hard thing is its by annual schedule. Not necessarily by fan system or all lighting.

I means around thing might ? might be to set the meters based on annual schedule. Then use the PS-F reports to take the consumption/peak to get the EFLH. That avoids a tons of hourly reports but uses potentially a lot of meters. Though, was hoping to avoid this.

Thanks,
DARIC R ADAIR PE, CEM, BEMP
Mechanical Engineer, Energy Analyst

Henderson Engineers
Tel (913) 742-5530
daric.adair at hendersonengineers.com

Licensed in KS

Daric Adair's picture
Offline
Joined: 2017-10-21
Reputation: 0

Inserting a general caution on leveraging peaks with the suggested consumption/peak PS-F approach?

You would need at least one hour in every fractional schedule at 1.0 to fully trust using the peak to derive FLEH from a meter report. That has been the root source of many LEED comments making incorrect conclusions based on FLEH ?margin math.? You will also need to be mindful that each sub-meter is only covering the effects of a single schedule to ensure ?coincident peaks? aren?t being conflated with actual peaks under a given end-use (like where you have 4 lighting schedules), similarly messing with your math later.

My concern with ?tons of meters? vs. ?tons of hourly reports? is that you?re kinda robbing Peter to pay Paul. It?s a lot of extra reporting and time spent parsing the outputs either way. My gut likes the *idea* of a custom hourly report approach more, as if you could construct a series of report blocks to replicate every schedule of interest, then you could do all the math in one output file, minimizing hours required for documentation and number-crunching. My concern however is I don?t think there?s a report block option that lets you simply select the hourly schedule value for just any schedule? You?ll need to do it indirectly?

So? here?s an idea that might combine the best potential of both approaches while minimizing error potential:

1. Save a separate copy/fork of your model ? you?ll want to retain this work for later but you won?t want it in your final model? unless you do some extra legwork to ?toggle/flag? these dummy loads into activity.
2. Set up a dummy elec meter under EM1 with up to 12 schedules for which you need to document FLEH. Give each schedule a 1kW Load, and a unique enduse.

[cid:image001.png at 01D3BC63.293B6960]

1. Copy the EM1 report block, and reassign it to your dummy meter. You might actually untick ?total end-use energy? as the 13th entry as that?ll be meaningless later.

[cid:image006.png at 01D3BC64.24C8FEA0]

1. Now, if you sum annual kWh for each end-use of the meter (handily done for you within the SIM PS-F reports), it?s equivalently the FLEH (if rounded to the nearest integer):

[cid:image005.png at 01D3BC65.5643A970]

[cid:image009.jpg at 01D3BC66.0DB35920]

1. Set up additional sub-meters to cover schedules in multiples of 12 until you?ve covered every schedule for which you need to document FLEH.

This would only work for annual schedules of type FRACTION and MULTIPLIER. If they?re asking for something like system runtime hours or snap temp loop operations you?ll need to be running custom hourlies, but those could be set up alongside this custom reporting structure as needed.

For what it?s worth, I haven?t submitted a project for LEED v4 review yet, and neither have I seen or reviewed the context under which they are asking for FLEH documentation, but I?d be inclined with my first project to instead take a minimal documentation0 approach on this front and have the reviewer ask in commentary specifically for what they really need. Requiring FLEH for *everything* crosses the line of silly from a (this) reviewers? perspective.

~Nick

[cid:image002.png at 01D3BC48.10E3FB40]
Nick Caton, P.E., BEMP
Senior Energy Engineer
Regional Energy Engineering Manager
Energy and Sustainability Services
Schneider Electric

D 913.564.6361
M 785.410.3317
F 913.564.6380
E nicholas.caton at schneider-electric.com

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

[cid:image003.png at 01D3BC48.10E3FB40]

Nicholas.Caton at schneider-electric.com's picture
Joined: 2016-02-26
Reputation: 0

Oh and hey, you can simplify the process I outlined by striking out Step #2 entirely? Custom reporting on the submeter isn?t necessary to generate the submeter PS-F report, but again may be necessary to cover FLEH for schedules and processes that aren?t related by a MULTIPLIER or FRACTION type schedule.

[cid:image002.png at 01D3BC67.C2B98D70]
Nick Caton, P.E., BEMP
Senior Energy Engineer
Regional Energy Engineering Manager
Energy and Sustainability Services
Schneider Electric

D 913.564.6361
M 785.410.3317
F 913.564.6380
E nicholas.caton at schneider-electric.com

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

[cid:image003.png at 01D3BC67.C2B98D70]

Nicholas.Caton at schneider-electric.com's picture
Joined: 2016-02-26
Reputation: 0