Performance evaluation and design guidelines for displacement ventilation
This paper evaluates the performance of traditional displacement ventilation systems for small offices, large offices with partitions, classrooms, and industrial workshops under US thermal and flow boundary conditions, such as a high cooling load. With proper design, displacement ventilation can maintain a thermally comfortable environment that has a low air velocity, a small temperature difference between the head and foot level, and a low percentage of dissatisfied people. Compared with conventional mixing ventilation, displacement ventilation may provide better indoor air quality in the occupied zone when the contaminant sources are associated with the heat sources. The mean age of air is younger, and the ventilation effectiveness is higher. Based on results from Scandinavian countries and the authors' investigation of US buildings, this paper presents guidelines for designing displacement ventilation in the US.
- Research Organization:
- Applied Materials, Inc., Santa Clara, CA (US)
- Sponsoring Organization:
- National Science Foundation (NSF)
- OSTI ID:
- 20002313
- Report Number(s):
- CONF-990102-; ISSN 0001-2505; TRN: IM200002%%313
- Resource Relation:
- Conference: ASHRAE Winter Meeting, Chicago, IL (US), 01/23/1999--01/27/1999; Other Information: PBD: 1999; Related Information: In: ASHRAE transactions 1999: Technical and symposium papers. Volume 105, Part 1, 1387 pages.
- Country of Publication:
- United States
- Language:
- English
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