More in IAQ & Ventilation

Seeking a way to keep members comfortable without increasing the tonnage of its air-conditioning units, Fitness Connection installed several Element and Isis large-diameter (8 to 20 ft), low-speed, commercial-grade fans from Big Ass Fans....More

Properly maintained, the main components of HVAC systems—coils, fans, casings, controls—should last 20 years or longer. One component that has a major impact on the cost of maintenance, the lifetime of other components, energy use, and the protection of building occupants and processes, however, is considered disposable: the air filter....More

The concept is straightforward: Condition and deliver fresh ventilation with a dedicated outdoor-air system (DOAS) to treat outdoor air and space latent loads efficiently....More

In Columbus, Ohio, a six-story law-school building requires cooling year-round. "A lot of buildings we can cool with outside air," Mike Klingler, service manager for HVACR contractor Farber Corp., said. "When we get down to 50 to 52°F and below, we can just draw that outside air in and use it for free cooling. But because of the setup of the law-school building, they had to run one of the chillers even when it was 20 to 25°F outside. Because of the duct distribution system, we couldn't rely on outside air in certain areas of the building."...More

Facilities managers have at their disposal a proven and effective means of helping to contain employer health costs: increasing ventilation. This article will discuss how increased ventilation can prevent the spread of disease among workers in commercial and government office buildings....More

In many large commercial buildings, central-station air handlers are used to maintain occupant comfort. Often, these units include return fans, which...More

The last five years have seen a steady increase in the rate of adoption of chilled beams in the United States, as designers and facility owners have become...More

As part of a plan to reduce the energy consumption of the Yale School of Medicine in New Haven, Conn., to 25 to 30 percent below the criteria set forth in ANSI/ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings, Genesys Engineering was hired to conduct an energy audit....More

ASHRAE The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recently announced that Addendum r to ANSI/ASHRAE Standard...More

The importance of clean air for human respiration was recognized even in ancient Rome. Vitruvius Pollio, the earliest architect whose written records...More

Building improvements are straightforward when the owner of a facility also is the occupant. The same cannot be said when, as in the case of many high-rise office buildings, the owner simply is the landlord, with dozens of tenants and spaces in various states and stages of occupancy. When it comes to energy, the tendency is for owners of these structures to charge tenants for all consumption and make no improvements....More

Expanding a health-care provider's services invariably requires the modification of an existing structure or the construction of a new one. Because engineers...More