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<font size=3>At 08:05 AM 6/7/2019, Michael J Witte via Bldg-sim
wrote:<br>
<blockquote type=cite class=cite cite="">Linda - Does the forward of
Engineering Weather Data have any mention of the motivation for that
data? Is that where the concept of using 99% etc. was first
used?</blockquote><br>
It mentions 99%/97.5% (heating) and 1%/2.5%/5% (cooling).<br><br>
The main first sentence says "This manual gives uniform engineering
weather data for winter heating design, heating degree days, summer air
conditioning design and criteria, for calculating energy consumption
estimates, and cooling degree days." (No reference document
given about those).<br><br>
Supersedes (several documents from 1967).<br><br>
Since this was 1978 publication -- I imagine the 1972 HOF might have had
something?<br><br>
<br>
<x-sigsep><p></x-sigsep>
------<br>
Linda<br><br>
<a href="http://climate.onebuilding.org/" eudora="autourl">
http://climate.onebuilding.org</a> - free repository of climate data for
building simulation</font></body>
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