weather data problem

romeru · Posts: 5

dear all,
I've got a weather data from the architect in .WEA, I converted it in .epw via ecotect. After it I imported it in my DB and apparently it is still not working. I've got an error message:

Program Version,EnergyPlusDLL 4.0.0.024, 30/07/2010 09:05,IDD_Version 4.0.0.024
** Warning ** Timestep: Requested number (2) is less than the suggested minimum of 4.
** ~~~ ** Please see entry for Timestep in Input/Output Reference for discussion of considerations.
** Warning ** Site:GroundTemperature:BuildingSurface: Some values fall outside the range of 15-25C.
** ~~~ ** These values may be inappropriate. Please consult the Input Output Reference for more details.
** Warning ** Weather file location will be used rather than entered Location object.
** ~~~ ** ..Location object=SALT CAY MASTER VILLA
** ~~~ ** ..Weather File Location=- - - WMO#=- [WEATOOL] WMO#=
** ~~~ ** ..due to location differences, Latitude difference=[0.62] degrees, Longitude difference=[0.74] degrees.
** ~~~ ** ..Time Zone difference=[0.0] hour(s), Elevation difference=[33.33] percent, [1.00] meters.
** Severe ** Reading Weather Data Line, Invalid Date, Year=2001, Month=2, Day=32
** Fatal ** Program terminates due to previous condition.
...Summary of Errors that led to program termination:
..... Reference severe error count=1
..... Last severe error=Reading Weather Data Line, Invalid Date, Year=2001, Month=2, Day=32
************* Fatal error -- final processing. More error messages may appear.
************* Testing Individual Branch Integrity
************* All Branches passed integrity testing
************* Testing Individual Supply Air Path Integrity
************* All Supply Air Paths passed integrity testing
************* Testing Individual Return Air Path Integrity
************* All Return Air Paths passed integrity testing
************* No node connection errors were found.
************* EnergyPlus Terminated--Fatal Error Detected. 3 Warning; 1 Severe Errors; Elapsed Time=00hr 00min 1.70sec

I attached as well the file itself so if someone have any idea, you are more than welcome.

I advanec thank you.

Vincent

Andrew Bairstow · Site Admin Posts: 247 Location: Birmingham, UK

Vincent
The main problem is that ecotect has converted the day of the month into day of the year (hence error on day 32). I notice that their is only hourly data for temperature/humidity and wind and wonder if it is really worth trying to sort out this weather file. It sounds like you have used ecotect to convert the file format. The wea format can be converted using DesignBuilder (Tools-Hourly Weather Data). If much of the data is absent however you might be best to seperately source more suitable weather data directly in epw format.
Regards
Andrew

lklawrie · Posts: 139

This is a known problem with Ecotect's export -- there are also other problems (or were) with their export to EPW.

At one point (probably still is), I had a CCF file for Ecotect to convert WEA files to EPW. It is/was on the Yahoo Groups EnergyPlus Support site. I will try to attach it here.

Also, you can use the EnergyPlus Weather Converter to convert wea files to EPW -- that would be what I would recommend as I worked quite a bit at taking their data and making sure it made sense in the translation.

Andrew Bairstow · Site Admin Posts: 247 Location: Birmingham, UK

Thanks Linda
The E+ Weather Converter is implemented in DesignBuilder (as discussed in my earlier post).
Andrew Smile

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