[Bldg-sim] Makkah weather files

[Larry Degelman]

Hello Sara,

Jeddah is the closest city with a similar climate.  Makkah is only about 70 
km inland from Jeddah and at the same latitude.  The annual heating and 
cooling degree days (base 18C) for Jeddah are 0 and 3656 respectively, and 
for Makkah, are 0 and 4651 respectively.  While the coolest months have very 
similar temperatures, the summer months are somewhat warmer in Makkah, 
possibly because of being located between two mountain ranges, and thus 
explaining the greater number of annual cooling degree days.  The humidity 
records show Makkah to have slightly higher DPs in the winter but somewhat 
lower DPs in the summer months.

I have generated TMY2 datasets for 6 cities in Saudi Arabia, based on 
statistical records covering 25 to 30 years.  I'm not aware of what format 
eQuest uses, but if you are willing to use the TMY2 file generated for 
Makkah, you are welcome to try it (see the TMY2 attachment.)  Based on the 
interchange that's taken place on the BLDG-SIM listserv, I'm guessing that 
this may be as reliable information as you will have access to.  You can 
find most of the temperature and humidity data that I used as input to the 
TMY2 generation model at the web site:  "en.wikipedia.org/wiki/Mecca"  For 
solar radiation, I used the same values as were available for Jeddah (from 
the WMO.)

If you have need for the other cities, they are: Dhahran, Jeddah, Khamis 
Mushait, Riyadh (air base), and Tabouk.

You can best view the attached files with Microsoft WordPad.

Best regards,

Larry D.
===========================
Larry O. Degelman, P.E., HBDP
Professor Emeritus of Architecture
Texas A&M University
===========================

--------------------------------------------------
From: "Gregg Liddick" <gliddick at theepstengroup.com>
Sent: Tuesday, August 25, 2009 9:09 AM
To: "Chris Yates" <chris at zed-uk.com>; "'Sara Ghalayini'" 
<sara_ghalayini at yahoo.com>; <bldg-sim at lists.onebuilding.org>
Subject: Re: [Bldg-sim] weather files

> I would check the heating degree days and cooling degree days for Mekkah 
> and find a weather file with a similar number.
>
> -----Original Message-----
> From: bldg-sim-bounces at lists.onebuilding.org 
> [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Chris Yates
> Sent: Tuesday, August 25, 2009 10:07 AM
> To: 'Sara Ghalayini'; bldg-sim at lists.onebuilding.org
> Subject: Re: [Bldg-sim] weather files
>
> I believe the two have quite different climates so wouldn't recommend it.
> Chris
>
> -----Original Message-----
> From: bldg-sim-bounces at lists.onebuilding.org
> [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Sara 
> Ghalayini
> Sent: 25 August 2009 09:50
> To: bldg-sim at lists.onebuilding.org
> Subject: [Bldg-sim] weather files
>
> hello. i am working on a project in Mekkah and couldn't find the weather
> file for equest. can i use weather file for riyadh? what are the values 
> that
> need to be close to each other so that i can check them?
>
>
> >
> No virus found in this incoming message.
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> 
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