More in IAQ & Ventilation

The Air Movement and Control Association International Inc. (AMCA International) Board of Directors has reviewed the current dues structure and decided there will be no cap-assessment increase on July 1, 2009....More

AMCA International Event Calendar...More

Late in the spring of 1998, Dennis Wald had just taken over the position of facilities director for Wausau School District in Wausau, Wis. At one of the district's 21 schools, 27-year-old, 273,000-sq-ft Wausau West High School, two of three boilers were not working; the chiller, an adsorption unit, had failed; classrooms would not heat or cool properly; teachers were threatening a work action; and energy was being used at the rate of 191,562 Btu per square foot per year....More

In most commercial kitchens, exhaust fans run at a constant speed throughout the day, regardless of load. This not only wastes fan energy, it increases...More

I need your help on this one, an HVAC technician said. I did a tenant fitup on the seventh floor of an office tower this spring. All I did was ductwork...More

With most buildings, air distribution is a straightforward mechanical-engineering task. With The University of Chicago's new $200 million, 427,000-sq-ft...More

It is well-known that poor indoor-air quality (IAQ) can be harmful to building occupants. In a biotechnology laboratory, it can be detrimental to the integrity of sensitive research and experiments as well. That is why, after opening a new 72,000-sq-ft facility in Newark, Del., in 2001, the University of Delaware's Delaware Biotechnology Institute (DBI) pressure-washed the coils in two 45,000-cfm air-handling units (AHUs) three or four times a year. Still, Robert Pekala, engineering and operations manager for DBI, was not satisfied....More

I found Edward Liwerant's article on variable-air-volume- (VAV-) box selection in the February issue (VAV-Box Selection, Code Conformance) very useful...More

Air-filtration technology has evolved tremendously since the advent of air filtration during the 1930s. The air-filter-selection process has evolved as...More

At a major university in the Midwest, one of the main air-handling units (AHUs) serving a 65,737-sq-ft biomedical building was experiencing ongoing problems...More

In 2004, construction of the 203,000-sq-ft Kansas Life Sciences Innovation Center began on The University of Kansas Medical Center campus in Kansas City,...More

At Caritas Good Samaritan Medical Center in Boston, fiber-glass insulation inside of three air-handling units (AHUs) serving the facility's operating...More