[Equest-users] Throttling Range and Pipe Insulation

Walt Henry WHenry at thielsch.com
Thu Jan 21 05:55:25 PST 2010

Good morning eQUEST users,


I have two requests:


1)       What is the definition of "throttling range"?  I have always
had 0 until my last project which is a Police Station.  We do mostly
energy retrofits and the existing boiler, 37 years old, has an input of
450 MBH.  The total HVAC load is 222.651 MBH per eQUEST.  For the first
time Report BEPU shows my base case model to be 34.1% outside of the
throttling range.  What does this mean?  The % of hours any plant load
is not satisfied is 0.


2)       I have a church to model, starting this morning, which has no
insulation on the steam piping and we want to determine the savings by
putting 1" of              fiberglass on the pipes.  Usually we would
determine the savings in e-plus but is there any way to model this in
eQUEST?  There are other measures and it would be convenient to have
everything in one report.


Walt Henry

Energy Specialist

RISE Engineering

1341 Elmwood Ave.

Cranston, RI 02910


Phone:  401-784-3700 Ext. 119

Fax:      401-784-3710    

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