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DOUBLE-SKIN FAÇADE IN HOT-ARID CLIMATES
COMPUTER SIMULATIONS TO FIND OPTIMIZED ENERGY AND THERMAL
PERFORMANCE OF DOUBLE SKIN FACADES
by
Zakarya A. Alahmed
A Thesis Presented to the
FACULTY OF THE USC SCHOOL OF ARCHITECTURE
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF BUILDING SCIENCE
AUGUST 2013
Copyright 2013 Zakarya A. Alahmed
Object Description
| Title | Double skin façade in hot arid climates: computer simulations to find optimized energy and thermal performance of double skin façades |
| Author | Alahmed, Zakarya A. |
| Author email | alahmedzak@gmail.com;zakr@hotmail.com |
| Degree | Master of Building Science |
| Document type | Thesis |
| Degree program | Building Science |
| School | School of Architecture |
| Date defended/completed | 2013-05-13 |
| Date submitted | 2013-08-05 |
| Date approved | 2013-08-05 |
| Restricted until | 2013-08-05 |
| Date published | 2013-08-05 |
| Advisor (committee chair) | Noble, Douglas |
| Advisor (committee member) |
Schiler, Marc Choi, Joon-Ho Vaglio, Jeffrey |
| Abstract | Due to the vast development in construction in hot-arid climate areas, implementing innovative façade technologies is crucial to meet owners and developer needs, and to meet climate conditions requirements. Buildings are major contributors of energy consumption due to the high glazing areas and their role of increasing cooling demand. Double skin facades are used in cold and temperate climates to reduce heating loads and for other benefits; however, it’s believed that a double skin façade can reduce cooling loads in hot-arid climates. This research project aims to find optimized configurations for double skin façades in this climate. Therefore, by implementing fully glazed double skin façades in hot-arid climate areas with careful design, buildings' energy consumption can be reduced by greater than 10% compared to a single skin façade with high glazing area. Dynamic thermal analysis using IES-VE has been performed on a hypothetical office building in Riyadh city, Saudi Arabia, to simulate baseline and double skin scenarios to examine the performance of proposed variables. Variables include double skin façade typologies: Multi-story, corridor, and box-window, orientation of the façade, cavity depths: 100cm and 150cm, and ventilation type inside the cavity: natural and mechanical. Results showed that rooms adjacent to cavities in different scenarios have lower solar gain, lower cooling load, and improved surface temperature compared to the same rooms in baseline cases. Based on the findings, double skin façades that can reduce energy consumption provide improved thermal performance and help to increase comfort levels. All double skin façade scenarios showed improved performance comparing to the baseline cases. Box-window types show substantial improvement over all other scenarios. And scenarios with mechanically ventilated cavities provided the most improved results in terms of energy and thermal performance. |
| Keyword | double skin facade; energy saving; hot arid climates; office building; energy simulation |
| Language | English |
| Format (imt) | application/pdf |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m |
| Contributing entity | University of Southern California |
| Rights | Alahmed, Zakarya A. |
| Physical access | The author retains rights to his/her dissertation, thesis or other graduate work according to U.S. copyright law. Electronic access is being provided by the USC Libraries in agreement with the author, as the original true and official version of the work, but does not grant the reader permission to use the work if the desired use is covered by copyright. It is the author, as rights holder, who must provide use permission if such use is covered by copyright. The original signature page accompanying the original submission of the work to the USC Libraries is retained by the USC Libraries and a copy of it may be obtained by authorized requesters contacting the repository e-mail address given. |
| Repository name | University of Southern California Digital Library |
| Repository address | USC Digital Library, University of Southern California, University Park Campus MC 7002, 106 University Village, Los Angeles, California 90089-7002, USA |
| Repository email | cisadmin@lib.usc.edu |
| Filename | etd-AlahmedZak-1960.pdf |
| Archival file | uscthesesreloadpub_Volume7/etd-AlahmedZak-1960.pdf |
Description
| Title | Page 1 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@lib.usc.edu |
| Full text | 1 DOUBLE-SKIN FAÇADE IN HOT-ARID CLIMATES COMPUTER SIMULATIONS TO FIND OPTIMIZED ENERGY AND THERMAL PERFORMANCE OF DOUBLE SKIN FACADES by Zakarya A. Alahmed A Thesis Presented to the FACULTY OF THE USC SCHOOL OF ARCHITECTURE UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF BUILDING SCIENCE AUGUST 2013 Copyright 2013 Zakarya A. Alahmed |
