CHAPTER MEETING: Methods of Effective Room Air Distribution

January 16, 2018
5:30 PM - 8:30 PM
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Club 101
101 Park Avenue
NY 10178

Presentation Outline:

In order to meet the increased expectations of building occupants, designers must be aware of the conflicts between first cost economics, occupant productivity and life cycle costs. Buildings that do not meet the needs of the occupants often result in expensive redesign or worse, result in lawsuits against all parties involved. First, we need to understand the rules:

  1. LEED: 2009 is out, and many are not aware of some significant changes that have resulted in air distribution, IAQ and Comfort.
  2. Thermal Comfort: Determining optimum occupant comfort strategies. ASHRAE Standard 55 has been revised.
  3. Acoustics: Accurately predicting end use environments. A new classroom acoustical requirement needs to be understood.
  4. IAQ: The changing face of ASHRAE Standard 62.1, and upcoming developments.

With the goal of saving energy over the 90.1 baseline (Overhead VAV), many architects are challenging the mechanical engineer to come up with alternate systems that will meet this goal.  Displacement Ventilation (DV), Underfloor Air Distribution (UFAD) and Chilled Beams all have a potential to save energy, and meet these needs.

 An overview of the pros and cons of all 4 methods of air delivery:

  • Overhead air distribution
  • DV ( Displacement Ventilation)
  • Underfloor Air Distribution (UFAD)
  • Chilled Beams and the DOAS Fan Box


1 PDH for attending this seminar.

Speaker's Bio:

Mr. Dan Int-Hout, Chief Engineer, Krueger, is responsible for the presentation of technical data and advanced application engineering for the Grilles, Registers and Diffusers, as well as the VAV air terminals, produced by Krueger.

Mr. Int-Hout originally joined Krueger in 1981, but has had several other jobs in the industry, in engineering, marketing and product research roles, with Owens Corning Fiberglas, Carrier, Titus and Environmental Technologies. Mr. Int-Hout has been in the air distribution research and design business since 1973, has a Master’s degree in Business Management from Central Michigan University, and a Bachelor’s degree in Biology and Physics from Denison University.

Mr. Int-Hout has written over thirty technical papers and articles on VAV system performance, acoustics, air diffusion, controls and occupant comfort. He was recently Chairman of both ASHRAE Technical and Standards Committees on Thermal Comfort, is a past Chairman of several other related ASHRAE Technical and Standards Committees, as well as ASHRAE Standards and Environmental Health Committees.

He received the ASHRAE Distinguished Service Award in 1993. He is currently the Chairman of the ARI Committee on Applied Acoustics (885) and Chair of ISO 205 U.S. Panel on Thermal Comfort. He is presently a member of the ASHRAE Technical Activities Committee (TAC).


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$20.00 Student Member