[bldg-sim] ASHRAE Standard Public Review Started

[Jason Glazer]

Two different public reviews regarding building energy 
simulation in ASHRAE Standard 90.1 started today.  

a) The first is a refinement to the performance rating 
method for buildings that are built beyond the 90.1 level. 

b) The second is a new requirement for the simulation 
program that may be used for the Energy Cost Budget method, 
now it must be tested according to ASHRAE Standard 140 a 
new standard that includes a series of tests for building 
energy simulation program.

The both can be downloaded along with many other draft 
changes to ASHRAE standards at:

http://xp20.ashrae.org/STANDARDS/availdft.htm

Anyone can submit comments to ASHRAE concerning these 
during the public review period. More information is shown 
below.

Jason

PS. I am currently serving as the chair of the 90.1 
subcommittee responsible for both of these proposed 
changes.

----------------------------------------------------

2nd Public Review of BSR/ASHRAE/IESNA Addendum e to 
ANSI/ASHRAE/IESNA Standard 90.1-2001, (ISC to 1st Public 
Review) Energy Standard for Buildings Except Low-Rise 
Residential Buildings

45-day 2nd Public Review: April 18, 2003 to June 2, 2003 
This proposed addendum contains several key revisions for 
the 2nd public review: (1) The non-regulated loads are now 
included to provide a more accurate accounting for the 
energy cost savings. (2) The baseline performance is now 
generated only by rotating the building four times and 
averaging the results; this eliminates the option to have 
equal areas in the cardinal directions. (3) The baseline 
now uses eight instead of six system types; the two new  
types are packaged DX VAV systems.

----------------------------------------------------

1st Public Review of BSR/ASHRAE/IESNA Addendum p to 
ANSI/ASHRAE/IESNA Standard 90.1-2001, Energy Standard for 
Buildings Except Low-Rise Residential Buildings 45-day 
First Public Review: April 18, 2003 to June 2, 2003

The Energy Cost Budget section requires the use of a 
building energy simulation program to estimate the energy 
cost difference between the design building model and a 
budget building model. Section 11.2.1 specifies the minimum 
capabilities of the program but not its minimum quality. 
This addendum starts to address this omission by requiring 
that the program be tested with ANSI/ASHRAE Standard 140-
2001, Standard Method of Test for the Evaluation of 
Building Energy Analysis Computer Programs.


=========================================================
Jason Glazer, P.E.  jglazer AT gard DOT com  847 698 5686
GARD Analytics - http://www.gard.com/
1028 Busse Highway, Park Ridge, IL 60068
Building Energy Simulation and Analysis
Admin of BLDG-SIM list for building simulation users

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