Tuesday, January 4, 2011

Dan Int-Hout's Top 10 Predictions for 2011

1. LEED 2012 will be approved, pretty much as it is in its first public review (http://www.usgbc.org/LEED/LEEDDrafts/RatingSystemVersions.aspx?CMSPageID=1458)

2. The ASA Classroom acoustics recommendation (essentially NC=26, ANSI 12.60 ) will become a requirement in many local codes and may be a part of the next IBC. It will also be a requirement of the ADA governing bodies, forcing a redesign of many school HVAC systems.

3. Over my objections, the ASHRAE Thermal Comfort Standard (55-2010) will be rewritten into code language. I predict this will result in gross misuse and misinterpretation of the requirements and will make lots of money for trial lawyers. (I hope I’m wrong on this one.)

4. With any luck, we will get a rewritten ASHRAE UFAD Design Guide out of committee at the summer meeting. The current manual has been pulled from the ASHRAE bookstore following complaints, most noticeably from the GSA, over lack of discussion of the potential negative issues with this design concept.

5. Displacement Ventilation will see significant use in classrooms (it’s quiet, see item #2 above).

6. Chilled Beams will continue to be the “darling” of innovative engineers. We will not see validation of the calculated energy savings from this relatively new technology. That will not, however, prevent estimates of significant energy savings, resulting in LEED points.

7. For the umpteenth year in a row, BOMA will state that the number 1 reason for not renewing the lease in high rise buildings is “occupant dissatisfaction with the building environment” (ie: comfort). See item #3 above.

8. The market for HVAC components will continue to be relatively flat with local ups and downs.

9. VAV overhead air distribution will continue to be (by far) the most used system in new buildings.

10. The Cowboys will continue to disappoint their fans.

Authored by: Dan Int-Hout, Chief Engineer Krueger