[Bldg-sim] Bldg-sim Digest, Vol 36, Issue 25

[Gunatilaka vasantha]

Dear Sir!
We would like to open up one of your branch in Sr Lanka. How can we do it and will you provide us with some financial assistance at the begining.
Your early response is very much appreciated.
Regards
Vasanth-CEO
 
From: bldg-sim-request at lists.onebuilding.org
Subject: Bldg-sim Digest, Vol 36, Issue 25
To: bldg-sim at lists.onebuilding.org
Date: Fri, 26 Nov 2010 12:00:55 -0800

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--Forwarded Message Attachment--
From: chris.malcolm.yates at gmail.com
To: bldg-sim at lists.onebuilding.org
Date: Fri, 26 Nov 2010 12:59:52 +0000
Subject: [Bldg-sim] Supply air temperature reset and economiser


Dear Bldg-sim,

I am having some difficulty with the definition of outdoor air reset temperatures.
Clause G.3.1.3.12 of A90.1 (2007) states:
The air temperature for cooling shall be reset higher by 2.3degC under the minimum cooling load conditions.
Question 1: We are not using DOE2 or EQuest. How are the "minimum cooling load conditions" decided?

Question2: During non-occupancy and cold external conditions, what SA temperature setpoint should be used? For example, if the air handler cycles during night to meet Zone heating setpoints, the SAT setpoint must be close to the RAT otherwise the system will first cool (possibly by increasing cold outdoor air) and then reheat the air in the zones.

Question 3: For the sake of comparison we generated a file similar to our model using the E+ example file generator but when we queried it, it appeared to operate the economiser via a differential enthalpy. A90 appears to stipulate a fixed Dry Bulb shutoff (G3.1.2.7). Is the example file in error here?

Best regards


-- 


Chris Yates C Eng MCIBSE
Building Physics Consultant
Tel:   +447960731576
Email: chris.malcolm.yates at gmail.com
Skype: christopher.m.yates

--Forwarded Message Attachment--
From: cmg750 at gmail.com
CC: Bldg-sim at lists.onebuilding.org
To: floodyc at gmail.com
Date: Fri, 26 Nov 2010 11:20:24 -0800
Subject: Re: [Bldg-sim] Whistler weather file

Chris,

If you go to http://www.doe2.com/download/Weather/ and look at the files listed under CTMY, CTMT2 and CWEC, you can see all the Canadian site eQUEST/DOE2.2 has available to it. I don't see Whistler but perhaps one of the other sites is close enough. Another good source for weather files is Whitebox Technologies, Joe Huang's company. If you call or email they can tell you whether they have data for Whistler.

Cheers,

Carol


On Wed, Nov 24, 2010 at 8:02 AM, Chris <floodyc at gmail.com> wrote:


I'm looking fir a weather file for Whistler in British Columbia, Canada.
Any help?
-- 
Chris Flood BSc (Eng)
Senior Building Analyst & Energy Modeller

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-- 
Carol Gardner PE


 		 	   		  
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