Lessons learned in modeling underfloor air distribution system

Kwang Ho Lee, Stefano Schiavon, Tom Webster, Fred Bauman, Jingjuan Feng, Tyler Hoyt

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Underfloor air distribution system (UFAD) is a mechanical air distribution strategy in which the conditioned air is primarily delivered to the zone from a pressurized plenum through floor-mounted diffusers. It has several potential advantages compared to conventional overhead (OH) mixing systems. However, most of the energy simulation programs widely used by the industry are not able to represent two distinct features of UFAD systems: room air stratification and the underfloor supply plenum. The situation has been improved with the development of a UFAD module in EnergyPlus. The Center for the Built Environment developed the modeling methods, tested them extensively, and conducted numerous studies of UFAD energy performance. This paper summarizes lessons learned related to UFAD specific issues such as thermal decay, sizing, terminal units, room air stratification and thermal comfort.

Original languageEnglish
Pages2904-2910
Number of pages7
Publication statusPublished - 2011 Dec 1
Externally publishedYes
Event12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011 - Sydney, NSW, Australia
Duration: 2011 Nov 142011 Nov 16

Conference

Conference12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011
CountryAustralia
CitySydney, NSW
Period11/11/1411/11/16

ASJC Scopus subject areas

  • Computer Science Applications
  • Building and Construction
  • Architecture
  • Modelling and Simulation

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  • Cite this

    Lee, K. H., Schiavon, S., Webster, T., Bauman, F., Feng, J., & Hoyt, T. (2011). Lessons learned in modeling underfloor air distribution system. 2904-2910. Paper presented at 12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011, Sydney, NSW, Australia.