Re: [EnergyPlus_Support] File - SERVICE - Meteonorm Weather Files

On Mon, Jan 24, 2011 at 5:28 PM, luis saraiva <luissaraiva3@xxxxxxxxx> wrote:

Thanks Drury, I only searched in the official EnergyPlus site Weather Database: http://apps1.eere.energy.gov/buildings/energyplus/cfm/weather_data.cfm

Best Regards,

Luís Saraiva

2011/1/24 Drury B Crawley <dbcrawley@xxxxxxxxx>

A file for Luanda, Angola already is available on the EnergyPlus Support YahooGroup web site: http://groups.yahoo.com/group/EnergyPlus_Support/

Look under Files/Meteonorm Weather Files/Africa/Angola

On Mon, Jan 24, 2011 at 1:18 PM, luis saraiva <luissaraiva3@xxxxxxxxx> wrote:

Dear Sirs,

I would like to have the weather file of Luanda, Angola. The requested data is:

Name of Location: Luanda, Angola
Latitude: -8.837986
Longitude: +13.2355
Time Zone: UTC/GMT +1 hour
Elevation: 74 meters

What's the expected date to receive this file?

Thanks in advance,

Luis Saraiva

2011/1/1 <EnergyPlus_Support@xxxxxxxxxxxxxxx>

The EnergyPlus team can provide weather files created using Meteonorm. These are posted on the EnergyPlus YahooGroup under Files > Meteonorm_Weather_Files.

Locations are listed alphabetically by country. More than 100 locations are currently available--look there first before asking for a new weather file.

Information on selecting weather data is described in this paper:
Drury B. Crawley. 1998. "Which Weather Data Should You Use for Energy Simulations of Commercial Buildings?" in ASHRAE Transactions, pp. 498-515, Vol. 104, Pt. 2. Atlanta: ASHRAE. (PDF 197 KB)

PDF: http://energyplus.gov/pdfs/bibliography/whichweatherdatashouldyouuseforenergysimulations.pdf

Requesting Meteonorm Weather Data for Your Location. Send the information either to this group or to the helpdesk (energyplus-support@xxxxxxxx)

You will need to supply:

Name of Location (including country)
Latitude (N+/S-)(decimal format preferred)
Longitude (E+/W-)(decimal format preferred)
Time Zone (+/- GMT)
Elevation (meters)

For convenience, you can convert lat/long in degrees minutes seconds to the decimal format by visiting this web link:
http://www.fcc.gov/mb/audio/bickel/DDDMMSS-decimal.html

And you should be aware of Meteonorm limitations:

Meteonorm extrapolates hourly data from statistical data for a
location. Where statistical data aren't available, Meteonorm interpolates
from other nearby sites. Generally a statistical approach is a last resort--
weather files generated from statistics will not demonstrate the normal
hour-to-hour and day-to-day variability seen in measured data.

Each .ZIP includes a .STAT (EnergyPlus weather data statistics), .EPW
(EnergyPlus weather file), and .INFO (Information about the source data and
limitations from Meteonorm).

IN ALL CASES, YOU SHOULD REVIEW THE .STAT FILE FOR THE LOCATION BEFORE USING
ANY OF THESE FILES TO ENSURE THAT IT REPRESENTS THE CLIMATE OF THE LOCATION AS
YOU UNDERSTAND IT. IN MANY CASES, A NEARBY LOCATION WITH MEASURED DATA MAY BE
MORE APPROPRIATE THAN ONE DERIVED FROM STATISTICS.

YOU USE THESE FILES ENTIRELY AT YOUR OWN RISK.

As always, if you know of sources of weather data that we might be able to
share with the EnergyPlus community, please contact us.

EnergyPlus Development Team

Re: [EnergyPlus_Support] File - SERVICE - Meteonorm Weather Files - Request for Luanda, Angola