[Equest-users] DOE22 weather processor

[Joe Huang]

Sorry for the repeated partial postings that just occurred.  I have no 
idea what happened, but it had to do with my mail server, since I just 
did a single "send".

On 6/19/2012 11:48 AM, Joe Huang wrote:
> This is true.  Unless the DOE-2 weather processor (doewth, wth.f) has 
> been upgraded for DOE-2.2,  it is not Y2K compliant (nor is DOE-2.1X 
> itself, for that matter).  What I've been doing for years has been to 
> reset the years > 20XX to 19XX.  Please note that this does not affect 
> the contents of the weather file at all.  Other deficiencies in the 
> DOE-2 weather processor and format are:
>  1)  fails at latitudes > 62.5 or < -62.5, i.e., above the Arctic or 
> below the Antarctic Circles because the routine for determining 
> sunrise fails.
>  2)  temperatures and solar radiation are stored in integer F or 
> BTU/hr-ft2, wind direction in octals, wind speed in 0.1 knots, etc., 
> causing round-off errors
>       especially when the input weather data are in SI units.
> I've made numerous changes to the DOE-2 weather processor to overcome 
> these limitations, while keep the file format compatible with the 
> original DOE-2 *.BIN format, but minor changes would also be needed in 
> doesim to access or read these enhancements, but I haven't made any 
> effort to promote such changes.
>
> Joe
>
> Joe Huang
> White Box Technologies, Inc.
> 346 Rheem Blvd., Suite 108D
> Moraga, CA 94556
> (o) (925)388-0265 (c) (510)928-2683
> www.whiteboxtechnologies.com
> "Building energy simulations at your fingertips"Joe Huang
>
>
> On 6/19/2012 7:25 AM, Jonathan Bowser wrote:
>> I don't know if this helps, but maybe it'll spark a thought by 
>> someone on here...
>>
>> I've recently played with the DOE-2 Processor for weather 
>> conversion.  I was rummaging around the source code and found 
>> comments in the code that basically stated one of the algorithms for 
>> computing information that is dependent on the earth's position about 
>> the sun were only valid between the time between March 1, 1900 and 
>> December 31, 1999 for time zones east of the international date line.
>>
>> Why is that the case?  I don't really know, but maybe someone else 
>> can chime in and provide some insight on a workaround for you.
>>
>> -- Jon
>>
>>
>> -----Original Message-----
>> From: equest-users-bounces at lists.onebuilding.org 
>> [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of 
>> Chris Jones
>> Sent: Tuesday, June 19, 2012 9:08 AM
>> To: equest-users at lists.onebuilding.org
>> Subject: [Equest-users] DOE22 weather processor
>>
>> I am making a TRY weather file for 2011.
>>
>> The INP file doesn't like dates above 1999.
>> PACK
>> TRY  Vancouver -999
>> TRY    71892  -999     8 49.18123.1830-BITNORMAL     4  20. .025
>>
>> I can use -999 and it works but if I put 2011 the processor quits and 
>> tells me:
>> --- ERROR --- YEAR             IS OUTSIDE ALLOWED RANGE.  THE ALLOWED
>> RANGE IS     -1 TO   1999.  PROCESSING WILL BE TERMINATED.
>>
>> Any ideas?
>>
>>
>> >>
>> 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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>
>


-- 
Joe Huang White Box Technologies, Inc. 346 Rheem Blvd., Suite 108D 
Moraga, CA 94556 (o) (925)388-0265 (c) (510)928-2683 
www.whiteboxtechnologies.com "Building energy simulations at your 
fingertips"