[tpm] toronto-pm Digest, Vol 63, Issue 6

[Shantanu Bhadoria]

Sounds like fun, can I have a look at the file?
cheers,
-shan

On Fri, Jun 15, 2012 at 3:00 AM, <toronto-pm-request at pm.org> wrote:

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> Today's Topics:
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>   1. help with developing an open source program for Ontario
>      (Chris Jones)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 14 Jun 2012 12:32:03 -0400
> From: Chris Jones <cj at enersave.ca>
> To: toronto-pm at pm.org
> Subject: [tpm] help with developing an open source program for Ontario
> Message-ID: <20120614163206.C9FA82E8A83 at xx1.develooper.com>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> The new Ontario Building code has specified updated requirements for
> the energy performance of the building envelope.  Previously, the
> Ontario requirements aligned with ASHRAE 90.1 requirements and ASHRAE
> published a computer program to calculate the envelope performance
> based on some fairly simple inputs.  Because the Ontario requirements
> are now different, the software has the wrong performance
> metrics.  The calculation equations and all the coefficients are
> available in a text form.  I could develop and excel spreadsheet but
> naming all the coefficients would be a long process.
>
> There are two paths to showing compliance with the Ontario building
> code - the prescriptive path and the system performance path.  The
> prescriptive path mandates that all envelope elements meet the
> minimum requirements.  The system performance method allows
> trade-offs.  Some building elements may be lower than the minimum but
> the calculations weigh these elements against elements that are
> better than minimum.
>
> I estimate that about 25% of new building will pass using the
> prescriptive path.  The other 75% will either have to be designed
> differently to meet the minimum in those few locations where the
> trade-off method would allow them to pass.
>
> This may not be a clear scope of work at the moment.  I would like to
> offer some financial support as obviously I will be making money from
> my consulting business using such a program.  On the other hand, I
> will make any program available to all practitioners in Ontario.
>
> The simplest iteration would take a text input file and the perl
> program would spit out the analysis for that input file.
>
> I have a PDF of the calculation methodology if anyone is interested.
>
>
>
>  >>
> Christopher Jones, P.Eng.
> Suite 1801, 1 Yonge Street
> Toronto, ON M5E1W7
> Tel. 416-203-7465
> Fax. 416-946-1005
> email cj at enersave.ca
>
>
>
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> End of toronto-pm Digest, Vol 63, Issue 6
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