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NIGHT FLUSHING AND THERMAL MASS:
MAXIMIZING NATURAL VENTILATION FOR ENERGY
CONSERVATION THROUGH ARCHITECTURAL FEATURES
by
Kenneth A. Griffin
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
May 2010
Copyright 2010 Kenneth A. Griffin
Object Description
| Title | Night flushing and thermal mass: maximizing natural ventilation for energy conservation through architectural features |
| Author | Griffin, Kenneth A. |
| Author email | kagriffi@usc.edu; kennyg1221@gmail.com |
| Degree | Master of Building Science |
| Document type | Thesis |
| Degree program | Building Science |
| School | School of Architecture |
| Date defended/completed | 2010-04-23 |
| Date submitted | 2010 |
| Restricted until | Unrestricted |
| Date published | 2010-05-03 |
| Advisor (committee chair) | Noble, Douglas |
| Advisor (committee member) |
Schiler, Marc Simmonds, Peter Kensek, Karen |
| Abstract | The goals of implementing natural cooling strategies are to reduce a building’s energy consumption, to improve the indoor climate, and to preserve natural resources. Energy preservation and sustainable design are beneficial for the building, its occupants, and the environment. When the passive technique of night flushing is used correctly with the appropriate architectural features, it can greatly reduce or eliminate the need for air conditioning and reduce peak energy demands. To test the efficiency of night flushing and to demonstrate its energy impact and its effect on building performance, the Lakeview Terrace library was chosen as a case study for modeling night flushing. The library is advertised as using night flushing for natural ventilation, but after investigating these claims it was discovered that the library was never designed to night flush. For this research, the library was modeled for night flushing in IES VE-Pro. After the building was modeled, its architectural features were altered to maximize energy efficiency by using night flushing. The simulations show the importance of internal and solar heat gain, as well as the role all of the building’s features play in natural ventilation. The results of this study demonstrated that the library redesigned with night flushing could drastically decrease its energy consumption while maintaining a comfortable indoor climate. It demonstrated that if the library would have been designed to naturally ventilate using night flushing, it could have greatly reduced the amount of energy needed for cooling as well as the cost to power its mechanical system. Night flushing offers an energy efficient alternative to HVAC without affecting the occupants’ comfort level. |
| Keyword | night flushing; thermal mass; Lakeview Terrace Library; natural ventilation; LEED post occupancy; percentage of people dissatisfied; thermal comfort; mean radiant temperature |
| Geographic subject (city or populated place) | Los Angeles; Lakeview Terrace; Santa Clarita |
| Geographic subject (state) | California |
| Language | English |
| 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-m2985 |
| Contributing entity | University of Southern California |
| Rights | Griffin, Kenneth A. |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | cisadmin@lib.usc.edu |
| Filename | etd-Griffin-3671 |
| Archival file | uscthesesreloadpub_Volume35/etd-Griffin-3671.pdf |
Description
| Title | Page 1 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@lib.usc.edu |
| Full text | NIGHT FLUSHING AND THERMAL MASS: MAXIMIZING NATURAL VENTILATION FOR ENERGY CONSERVATION THROUGH ARCHITECTURAL FEATURES by Kenneth A. Griffin 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 May 2010 Copyright 2010 Kenneth A. Griffin |
