The Underfloor Air Distribution (UFAD) Design Guide is available from the
ASHRAE. This guide, authored by CBE Research Specialist Fred Bauman and Allan
Daly of Taylor Engineering, is the product of collaborative research and
documentation by CBE and its industry members. The guide has been developed to
assist engineers, architects, owners, facility managers, manufacturers,
installers, and other users of underfloor air distribution technology. To
purchase the guide go to the online ASHRAE
Articles on UFAD Technology
Design Guidelines for Underfloor Plenums. HPAC Engineering.
Authored by CBE researchers Hui Jin, Fred Bauman, and Tom Webster.
Design Guidelines for Stratification in Underfloor Air Distribution (UFAD)
Systems HPAC Engineering. Authored by CBE
Research Specialists Tom Webster and Fred Bauman.
November 2005: CBE Industry
Partner Steven Spinazzola PE, Vice President with RTKL, authored
Air Distribution Turned Upside Down in this month's issue of Building
Operating Management. The article provides an overview of UFAD benefits,
and explains the importance of integrated design when considering UFAD
2005:: BetterBricks interviews
CBE Research Specialist Fred Bauman
for the article,
Current Knowledge on Under Floor Air Distribution.
issue of e-News from Energy Design Resources focuses on UFAD systems,
including design guidance from CBE.
A letter by Fred Bauman appears in Consulting-Specifying Engineer.
The Real "Facts" on UFAD, January 2005
letter addresses a number of inaccuracies from a
roundtable discussion of UFAD that
CSE published in October 2004.
Above or Below? October 2004
December 2003: CBE
Research Specialist Fred Bauman authored
the cover article in the December 2003 issue of HPAC Engineering. His article, “Designing
and Specifying Underfloor Systems: Shedding Light on Common Myths,” uses
recent research findings to illustrate common questions on underfloor systems,
and to debunk common myths surrounding them.
September 2003: "A
Breath of Fresh Air from Below" appeared in the Business Report column
of Toronto-based The Globe and Mail. In the article author Albert Warson
describes the growth of the new technology and cites numerous examples of UFAD
buildings in Canada, including two that were conversions of older buildings.
September 2003: An article in the September issue of Consulting-Specifying
Down Below?" discusses many of the fire safety code implications of
underfloor air distribution (UFAD) systems. The article includes a sidebar on
our work to create energy modeling software for UFAD buildings. This project is
being developed by CBE in collaboration with UC San Diego, the Simulation
Research Group at Lawrence Berkeley National Laboratory, and York
July 2003: An article in the Wall Street Journal
describes raised floor ventilation as a technology that provides improved
occupant comfort while reducing building operating costs. The article from July
9, 2003, "Raised-Floor
Ventilation Gains Footing in U.S. Office Buildings," (subscription
required) cites examples of building owners and designers that have opted for
underfloor systems, listing five new raised floor projects.
Articles and Presentations available for Download
Hogan, M., T. Webster, and F. Bauman. 2005. Trends in Design and Operation of UFAD Buildings.CBE Summary Report, October.
Bauman, F., 2006. Slide presentation from McCoy UFAD Workshop. Houston, TX, August 8, 2006. (PDF 3MB)
Bauman, F., 2005. PE,
from BetterBricks/ASHRAE Workshop. Seattle WA
and Portland OR, September 7-8, 2005. (PDF 3MB)
Lehrer, D. and F. Bauman, 2003. Hype
vs. Reality: New Research Findings on Underfloor Air Distribution Systems.Proceedings,
Greenbuild 2003, Pittsburgh PA, November (PDF 596K)
Webster, T., F. Bauman, J. Reese and
M. Shi, 2002. Thermal
Stratification Performance of Underfloor Air Distribution (UFAD) Systems.
Proceedings, Indoor Air 2002, Monterey, CA, June. (PDF 61K)
Webster, T., F. Bauman, and J. Reese, 2002. Underfloor
Air Distribution: Thermal Stratification. ASHRAE Journal, May. (PDF
Webster, T., R. Bannon and D. Lehrer,
Broadband Center Field Study. CBE Summary Report, April. (PDF 680K)
Bauman, F., and T. Webster, 2001. Outlook
for Underfloor Air Distribution. ASHRAE Journal, June. (PDF
Webster, T., F. Bauman and E. Ring.
Fan Energy Use in Pressurized Underfloor Air Distribution Systems. CBE Summary Report, October.
Bauman, F., T. Webster and P. Pecora,
1999. How Low
Can You Go? Air Flow Performance of Low-Height Underfloor Plenums. CBE Summary Report, October.
Bauman, F., 1999. Giving
Occupants What They Want: Guidelines for Implementing Personal Environmental
Control in Your Building.
Proceedings, World Workplace
1999, Los Angeles, October. (PDF 98K)
Bauman, F., A. Baughman, G. Carter, and E. Arens,
Field Study of PEM (Personal Environmental Module) Performance in Bank of
America's San Francisco Office Buildings Center for Environmental Design
ResearchUniversity of California, Berkeley, April. (PDF 2.4MB)
Bauman, F., and E. Arens, 1996. Task/Ambient
Conditioning Systems: Engineering and Application Guidelines, Center for Environmental Design Research, University of California, Berkeley,
October 1996. (PDF 2MB)