[esp-r] Re: cooling

Thu Feb 27 18:49:07 GMT 2014

Hi Hua,

thank you very much. I have checked and it looks like with the doors open the ventilation load reduces while the convection through opaque surfaces ptn (which I don’t know what it means) increases. Does that make any sense?

Achim,

The absolute cooling increases from 340 kWh/year to 421 kWh/year when the doors are closed.

Can anyone help to clarify why?

Thank you,

Regards,

Arianna

From: 索华 [mailto:suohua1505 at gmail.com]
Sent: 27 February 2014 12:57
To: Arianna Sdei
Subject: Re: [esp-r] Re: cooling

Dear Adriana, I suggest use RESULT ANALYSIS to check the energy balance of the zone, ESP-r will split , in every time step, into infiltration, ventilation, storage, convection etc. Just check one tipical heating or cooling time step. In this way, you can check which parameter increases which does not, it may be helpful for you furture analysis.

Regards,

Hua
2014-02-27 13:28 GMT+01:00 Arianna Sdei <A.Sdei at brighton.ac.uk<mailto:A.Sdei at brighton.ac.uk>>:
Dear Achim,

Thank you for your comment. I do have an afn defined and I am only imposing a cooling set point temperature on the control file for the living room during the day and the bedroom at night. There is no night time cooling at the moment. The cooling load seems to increase slightly in his absolute value while the heating reduces quite a lot . I will send you more detailed figures shortly,

regards
Arianna

From: esp-r-bounces at lists.strath.ac.uk<mailto:esp-r-bounces at lists.strath.ac.uk> [mailto:esp-r-bounces at lists.strath.ac.uk<mailto:esp-r-bounces at lists.strath.ac.uk>] On Behalf Of Achim Geissler
Sent: 25 February 2014 19:31
To: esp-r at lists.strath.ac.uk<mailto:esp-r at lists.strath.ac.uk> Club
Subject: [esp-r] Re: cooling

Dear Arianna,

the information about the model is a bit scarce.
- do you have an afn defined?
- how is this affected by closing doors?
- could closing doors reduce night time cooling (if any)?
- how is the AC modelled? Do ducts run through zones that may become warmer by closing doors?
- how do surface temperatures of the living room change after closing doors (i.e., does the bedroom become hot and what is the construction between these zones)?
- is the cooling load absolutely higher or relatively?

… and maybe a few more I am not thinking about, right now.

Cheers,
Achim

On Feb 25, 2014, at 6:23 PM, Arianna Sdei <A.Sdei at brighton.ac.uk<mailto:A.Sdei at brighton.ac.uk>> wrote:

Dear All,

I am running some simulations in a multizone model of a single storey house with one bedroom and one living room. I am controlling some air conditioning in the living room only from May to September. So, I thought that by closing the door of the living room I would get a lower cooling load. But actually if I close all doors in the house I get a slightly higher cooling load and a lower heating load. Do you know why? Let me know,

Regards,

Arianna Sdei

Research Fellow IFORE (Innovation For Renewal)

UNIVERSITY OF BRIGHTON

Moulsecoomb, Lewes Road, Brighton, BN2 4AT

direct line: 0044 (0)2036747268

mobile: 0044 (0)7981739024

___________________________________________________________
This email has been scanned by MessageLabs' Email Security
System on behalf of the University of Brighton.
For more information see http://www.brighton.ac.uk/is/spam/
___________________________________________________________
_______________________________________________
esp-r mailing list
esp-r at lists.strath.ac.uk<mailto:esp-r at lists.strath.ac.uk>
http://lists.strath.ac.uk/mailman/listinfo/esp-r

achim.geissler at intergga.ch<mailto:achim.geissler at intergga.ch>

___________________________________________________________
This email has been scanned by MessageLabs' Email Security
System on behalf of the University of Brighton.
For more information see http://www.brighton.ac.uk/is/spam/
___________________________________________________________

_______________________________________________
esp-r mailing list
esp-r at lists.strath.ac.uk<mailto:esp-r at lists.strath.ac.uk>
http://lists.strath.ac.uk/mailman/listinfo/esp-r

--
Suo Hua

Ph.D Student in Tecnologia e Progetto per l'Ambiente Costruito/Technology and Design for Environment and Building

Il Dipartimento B.E.S.T.Dipartimento di Scienza e Tecnologie dell’Ambiente Costruito/ The Department of Building Environment Science & Technology

Politecnico Di Milano

Email:hua.suo at mail.polimi.it<mailto:Email%3Ahua.suo at mail.polimi.it>

Tele:3890994652
___________________________________________________________
This email has been scanned by MessageLabs' Email Security
System on behalf of the University of Brighton.
For more information see http://www.brighton.ac.uk/is/spam/
___________________________________________________________

___________________________________________________________
This email has been scanned by MessageLabs' Email Security
System on behalf of the University of Brighton.
For more information see http://www.brighton.ac.uk/is/spam/
___________________________________________________________
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.strath.ac.uk/archives/esp-r/attachments/20140227/44f9cf8d/attachment-0001.html 