eQuest: Pumps & Aux

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I've searched a lot of the archived posts for information on what is
actually included in the 'Pumps & Aux' category, but I wanted to see if
anyone had any additional end-uses that are also included in this
sub-category...so far I just have the basics:

1. All pumps (both HVAC and Domestic) [kWh]

2. Furnace pilot lights [therms]

3. DX crankcase heating [kWh]

Any additional?

Josh Greenfield, PE, REP, LEED AP

josh.greenfield's picture
Joined: 2011-02-17
Reputation: 0

Breaking my rule of posting when I'm not sure, but humidification?


Sent from my iPhone

David S Eldridge's picture
Joined: 2011-09-30
Reputation: 2000

My humidification shows up in 'Heating - Electric' I believe.

josh.greenfield's picture
Joined: 2011-02-17
Reputation: 0


I think that Pumps and Aux only include CHW, HHW, and DHW, NOT Condenser Water. That, I believe, is under Heat Rejection.


To err is Human
To forgive is divine
To admit you aren't sure about something in?eQuest is NORMAL !!

From: David S Eldridge
Cc: "equest-users at lists.onebuilding.org"
Sent: Sun, January 17, 2010 10:38:19 AM
Subject: Re: [Equest-users] eQuest: Pumps & Aux

Breaking my rule of posting when I'm not sure, but humidification?


Sent from my iPhone

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

The eQUEST 'Modeling Procedures Quick Reference Guide' gives a good
description of end-use reporting.
This can be found under ...\eQUEST 3-63 Data\Tutorials\All. I would
direct you to page 149 in this document.

Umesh Atre's picture
Joined: 2011-09-30
Reputation: 0

Does anyone know where the weather data for eQuest comes from? Why I ask is because many energy modeling applications have requirements on the type of weather data used for simulation. What I've noticed is that if you change the "Run Period" in eQuest (see screen shot below as found on the "Project & Site" tab in detailed edit mode under "Simulation Options: Entire Year"), the energy use also changes. I also found that if you set the run period to span over multiple years, the output (even with units per year) adds all of the years together. Is eQuest not using a TMY, TMY2 or TMY3 file to create its .BIN files? If so, why would the year even matter since you usually want to be using typical weather data? Do those years actually correspond to actual data?

[cid:image001.png at 01CA98F5.C7341850]

My second question (relating to this) is how to use DOEWth to convert TMY2 files to .BIN files? Is this the only way to do this?



Katie Tuttle's picture
Joined: 2011-09-30
Reputation: 0


To the best of my knowledge, when you change the starting date/year in
eQUEST, the only thing you are changing is the day of the week that
applies to the first day of the TMY data. For example, 2010 begins on a
Fri, which sets the number of weekdays and weekends you have in each
month/year (i.e. you'll have 10 combined weekend days in Jan, rather
than only 8 if this month would have started on a Mon (year 20XX). If
your building is unoccupied on the weekend, you'll clearly use less
energy in Jan 2010 than you would in year 20XX.

The weather conditions used to simulate that first day in both cases
will always be the same (set by the TMY data file) regardless of the
start year that is specified . If you are comparing simulation runs for
two different years I've found that this generally will have a greater
impact on monthly consumption differences, but overall annual
consumption should still be in the ballpark.

If you want to test this, you can set 24/7/365 schedules that do not
change between weekday/weekend/holidays and I bet there will be no
impact of the start year on consumption (with the exception of how
eQUEST handles of Leap Years).

I hope this helps.


Jonathan M. Curtin, EIT, LEED(r) AP

Jonathan Curtin's picture
Joined: 2011-09-30
Reputation: 0

Katy, as to you first question I am unable to answer, for the second part on
using the Converter I might be able to help

Once downloaded

- Navigate into the Util32 folder
- Put of copy of the tmy file you wish to convert in the Util32
- Right click on the MKAFT.BAT file
- Change set doedir= to the match the file directory you are in (ex.
C:\documents and settings\my documents\ ....)
- Change set weather.bin = (the file you wish to convert) ex.
- Change set weather.fmt = (the file you wish to convert) ex.
- Save the file
- Double click MKAFT.BAT to run the program
- A .ft file will appear in the directory
- Rename as .txt (ignore warnings)

The first 3 lines are usually some junk, then the column headings from left
to right are

Wind Direction
Humidity Ratio
Solar Radiation
Direct Solar Radiation
Cloud Type
Wind Speed

We have a Data base set up to import the data into the correct headings...

Hope this helps

Jordan Goldsmith

Jordan Goldsmith's picture
Joined: 2011-09-30
Reputation: 0

After reading through your directions, it seems you're going from a .BIN file to a .TXT file. I need to MAKE a .BIN file from weather data (TMY2 or other). Do you know how to do that?


Katie Tuttle's picture
Joined: 2011-09-30
Reputation: 0

Katie, in order to convert weather files, you need to download the eQ_WthProc from the following location and follow the instructions on the website: http://doe2.com/index_wth.html

If you already have your epw file, then place it in the "SourceFiles" folder that will be created with this install. If you do not have an epw file, you can download one from here: http://apps1.eere.energy.gov/buildings/energyplus/cfm/weather_data.cfm

In the "Processor" directory, double click on eQ_WthProc.exe, click Run, you should then see the following:
[cid:image002.png at 01CA9922.2D6A4F00]

In the EnergyPlus weather file box near the top, click the [cid:image003.png at 01CA9922.2D6A4F00] and navigate to the SourceFiles folder and select the epw file you placed in there. Then click the big Convert button on the bottom left.

It will take a few seconds and then your dialogue box should look like this with writing in the bottom white area that says Formatted weather data successfully:
[cid:image004.png at 01CA9922.2D6A4F00]

If you get an error saying "Invalid file name" or something like that, then you need to follow the directions on the first website I sent that talks about changing the .INI file. I did option 2 and opened up that INI file in a text editor, changed the path names, and then it worked perfectly.

You new .bin file will be located under the EPW folder, I believe.

Hope this helps,


Susan Trzos's picture
Joined: 2011-09-30
Reputation: 200

Thank you Susan! For the benefit of everyone who has been struggling with
the EPW to BIN puzzle, I have attached a screen shot of my folder structure
as well as my modified INI file that finally worked of hours of incorrect
file name and floating point errors. The first option in the instructions
that suggests deleting the INI file does not work. You have to modify it and
specify the name, source location of the epw file and desired location of
the bin file all in the INI file.

NYCCTgreen's picture
Joined: 2011-09-30
Reputation: 0