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Thermal performance of double-skin f...

Fallahi, Ali.

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Thermal performance of double-skin facade with thermal mass.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Thermal performance of double-skin facade with thermal mass./
Author:	Fallahi, Ali.
Description:	204 p.
Notes:	Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4374.
Contained By:	Dissertation Abstracts International71-07B.
Subject:	Engineering, Architectural. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NR63349
ISBN:	9780494633496

Thermal performance of double-skin facade with thermal mass.
Fallahi, Ali.

Thermal performance of double-skin facade with thermal mass. - 204 p.

Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4374.

Thesis (Ph.D.)--Concordia University (Canada), 2009.

In order to mitigate the overheating problem in the warmer seasons, and thereby to improve thermal performance and energy efficiency of the Double-Skin Facade (DSF) system, this study introduced an innovative design approach involving the integration of thermal mass with the air channel of the conventional DSF. Then it proposed a numerical procedure to assess the thermal performance of DSF, and finally investigated the effect of thermal mass on the energy efficiency of such system.

ISBN: 9780494633496Subjects--Topical Terms:

1671790
Engineering, Architectural.

Thermal performance of double-skin facade with thermal mass.
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100 1 $a Fallahi, Ali. $3 1674120
245 1 0 $a Thermal performance of double-skin facade with thermal mass.
300 $a 204 p.
500 $a Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4374.
502 $a Thesis (Ph.D.)--Concordia University (Canada), 2009.
520 $a In order to mitigate the overheating problem in the warmer seasons, and thereby to improve thermal performance and energy efficiency of the Double-Skin Facade (DSF) system, this study introduced an innovative design approach involving the integration of thermal mass with the air channel of the conventional DSF. Then it proposed a numerical procedure to assess the thermal performance of DSF, and finally investigated the effect of thermal mass on the energy efficiency of such system.
520 $a The initial step in the assessment procedure proposed the development of base-case models, which were able to predict temperature distribution in the DSF with a venetian blind. So too were the base-case models able to determine heating/cooling loads of the perimeter room for both the mechanically and naturally ventilated DSFs. In this procedure, building energy simulation software was used for base-case development; two distinct models were generated: an airflow model and a thermal model. The nodal, unidirectional airflow network method was applied in the case of the naturally ventilated DSF. The thermal model was a transient control volume method which found temperature distribution in discretized air-channel.
520 $a The base-cases were verified at two levels: inter-model verification and verification relying on measurements from mechanically and naturally ventilated outdoor test-cells. At both levels, a generally fair agreement was obtained. After this, parametric studies pertaining to the energy performance of the system were conducted on the effect of thermal mass in unison with different air-channel configurations.
520 $a Considerable energy load reductions were found when thermal mass was used in the air-channel, replacing venetian blind slats for mechanically ventilated DSFs; this held true during both summer and winter. In this configuration depending on the airflow path direction, energy savings from 21% to 26% in summer and from 41% to 59% in winter are achievable in compared with conventional DSF with aluminum venetian blind. The savings were found higher in sunny days than cloudy days. On the other hand, naturally ventilated DSFs combined with thermal mass were not found to be energy efficient in winter due to stack effect and airflow rate increase within the air channel.
590 $a School code: 0228.
650 4 $a Engineering, Architectural. $3 1671790
650 4 $a Energy. $3 876794
690 $a 0462
690 $a 0791
710 2 $a Concordia University (Canada). $3 1018569
773 0 $t Dissertation Abstracts International $g 71-07B.
790 $a 0228
791 $a Ph.D.
792 $a 2009
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NR63349