Environmental Energy Technologies Division News

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Research Highlights


Ventilation Standard for Residences Approved

In July 2003, the Board of Directors of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), approved publication of ASHRAE Standard 62.2, Ventilation and Acceptable Indoor Air Quality for Low-Rise Residential Buildings. The Board heard and rejected appeals to its decision to publish the standard in October, and the Board Policy Committee for Standards made ASHRAE Standard 62.2-2003 official on October 5. Max Sherman of the Environmental Energy Technologies Division (EETD) is the outgoing chair of Standards Project Committee (SPC) 62.2P, which worked for six years to develop this standard for maintaining acceptable indoor air quality in homes. SPC 62.2P consists of three primary sets of requirements addressing whole-house ventilation, local exhaust, and source control. A large group of secondary requirements address implementation issues related to the primary requirements.

The standard provides alternate pathways to meeting its requirements, with the goal of giving builders flexibility. The requirements are performance based, and after prescriptive alternatives for achieving specified ventilation rates. Both mechanical and natural methods of achieving these rates are permitted.

"The intention of whole-house ventilation," says Sherman, "is to dilute the unavoidable contaminant emissions from people, materials, and background processes. Local exhaust is intended to remove contaminants from specific rooms like kitchens and bathrooms where these sources originate."

Secondary requirements include specifics such as sound and flow ratings for fans, as well as labeling, and guidance to help prevent the design of a building from being a factor in the failure of ventilation systems.

Mayoral Summit

U.S. mayors and their staffs, city council members, members of boards of supervisors, and renewable energy experts attended the second day of the Solar Cities Summit at Lawrence Berkeley National Laboratory (Berkeley Lab) on September 19. Convened by San Francisco Mayor Willie Brown, the mayors spent September 18 in San Francisco learning about solar energy's prospects and looking over the new photovoltaic (PV) panels and energy-efficiency improvements at the Moscone Convention Center.The following day, they came to Perseverance Hall where they heard practical talks about how to plan, implement, and finance solar PV projects in their cities. Environmental Energy Technologies Division (EETD) Director Mark Levine welcomed the group to Berkeley Lab with a talk about how energy efficiency complements the use of renewable energy sources by providing more bang for the renewable energy buck.The Mayors of Honolulu HI, Boulder CO, Scottsdale AZ, and Montclair NJ were among those in attendance, along with mayors from California cities including Burbank, Campbell, Oroville, and Santa Ana.The meeting concluded with a mid-day visit to the Lab's new Advanced Windows Test Facility where attendees learned about electrochromic and other new efficient window technologies.

Mayoral group Mark Levine presenting to the mayoral group.

Environmental Energy Technologies Division 30th anniversary logo

Environmental Energy Technologies Division
is 30 Years Old

Celebrating its 30th anniversary in style on October 30, the Environmental Energy Technologies Division (EETD) threw a birthday bash in the Lab's cafeteria, complete with nostalgic photographs, music performed by EETD staffers, and birthday cake. Current EETD staff attended the party along with a number of old friends, including retired staffers, former EETD Directors, and past Lab Director Andy Sessler.

Andrew Sessler reminisces. Photo by Ted Gartner

Andrew Sessler reminisces.
Photo by Ted Gartner.

Past Division Directors Jack Hollander, Bob Budnitz, and Elton Cairns attended as did current Division Director Mark Levine, Lawrence Berkeley National Laboratory (Berkeley Lab) Director Charles Shank, and Lab Deputy Directors Pier Oddone and Sally Benson. In his welcoming remarks, Director Shank praised the Division's accomplishments: "Thirty years ago, Andy Sessler worked with his [colleagues] to create this Division. In doing so, he created the Lab as it is today," he said, pointing to the Lab's evolution from a physics research facility to a multidisciplinary science laboratory.

Attendees viewed posters set up around the room with portraits and candid photos of 30 years of past and present-day staff. Maggie Pinckard and Greg Homan, both Division staffers, provided harp, flute, and keyboard music. In the cafeteria lobby, bulletin boards were covered with pictures, some dating back to the Division's beginnings, loaned by current employees.

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