FEBRUARY MEETING
Topic: "Thermal Envelopes and Vapor Barriers"
Monica Rokicki
Tuesday, February 12th, 2013
Blue 5 Restaurant
312 2nd Street
Roanoke, VA 24011
Agenda:
Doors open at 11:30 AM
Lunch buffet open at 11:45 AM
Presentation at noon
Cost is $20/person
RSVP by 6:00PM, February 6th to Jon Colledge
E-mail: jon.colledge@aecom.com
Phone: 540-857-3350
President's Corner
This question is mainly aimed at the consulting engineers out there, but how often have you had an architect, owner, or contractor call you up to ask what the current wall or roof insulation requirements of ASHRAE Standard 90.1 are? Or maybe ask for you to “help” calculate the dew point in a wall assembly they were working on? Questions like this make two things clearly evident, 1) that the reach of ASHRAE extends far beyond the domain of HVAC&R and 2) we as ASHRAE members need to do a better job of making everyone in the building trades aware of the accessibility of ASHRAE resources.
Our meeting topic this month is a perfect opportunity to do just that, and reach out to the architects, structural engineers, general contractors, and building owners. Monica Rokicki from Better Building Works will be speaking to us about Thermal Envelopes and Vapor Barriers. No matter how many tons of cooling or BTU’s of heat we design into our projects, if the building envelope does not perform, neither will the building. Please spread to word to all your colleges, and join us on February 12, for a lunch meeting at Blue-5 Restaurant in downtown Roanoke.
This month, we’ll also be hosting a pair of ASHRAE Region III officers, Director and Regional Chair, Paul Petrilli and Regional Vice Chair for Membership Promotion, Gary Debes. Paul and Gary are looking forward to meeting members of the Roanoke Chapter as well as making a few ‘house calls’ to some of the local member firms. If you’d be interesting in letting Paul and Gary stop by and visit your operations while they are in town please let me know.
Mark your calendars, the Annual Lew Evan’s Scholarship Golf Tournament is scheduled for April 12
th at Ashley Plantation. Dust of your clubs and get your teams together, April will be here before we know it!
I look forward to seeing everyone at this month’s meeting.
Thanks,
Rick Hughes
Roanoke ASHRAE President
CTTC Corner
Select Fans Using Fan Total Pressure to Save Energy
By John Cermak, Ph.D., P.Eng., Member ASHRAE; and
John Murphy, Ph.D., Life Member ASHRAE
It is estimated that the worldwide energy use of fans is about 23% of the world’s total energy consumption. In this article the authors discuss two important fan selection issues relating to reduction of energy consumption. The first is the selection of the fan so that the operating point is close to the peak fan efficiency. The second is to use fan total pressure instead of fan static pressure for fan selection.
This article originally was published in July 2011.
Click here to download the article. It will be available here through Jan. 24.
After Jan. 24, access to the article from this newsletter will no longer be available. It will remain available for free download by members
here and for purchase by nonmembers in the
ashrae.org online store.
NYC Reporting Law Yields Surprising Results
NEW YORK—According to data released under a city law that tracks energy use in New York buildings, several buildings that are expected to be high performing actually are not. The six-year-old 7 World Trade Center, which is certified LEED Gold, had an ENERGY STAR score of 74. That is just below the minimum of 75 set for high-efficiency buildings by the federal ENERGY STAR program. However, two buildings built in the 1930s, the Chrysler Building and the Empire State Building, had their ENERGY STAR scores increase to 84 and 80, respectively, as a result of extensive renovations to their insulation and mechanical systems. The city’s biggest commercial structures have been required to report energy use since 2010. This is the first year public disclosure has been mandated under a 2009 law.
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