July 1, 2009
Articles
Last month in this space, Editorial Director Mike Weil announced that HPAC Engineering's sixth annual Engineering Green Buildings (EGB) Conference and...
With the current national emphasis on renewable-energy systems, we find ourselves on the brink of great opportunity, yet frustrated by the constraints...
I designed an HVAC system for a large electronics store in midtown Manhattan, a fast-track construction project that was supposed to be completed during...
When I checked into my room in one of the largest hotels in Las Vegas, the room was too warm, but the vertical chilled-water fan-coil unit was running...
Solar air-conditioning systems Powered by solar thermal energy or electricity, DuHybrid air-conditioning systems can reduce the energy required for cooling...
Gas-fired-boilers booklet A full-color, 23-page booklet from AERCO describes the applications and benefits of designing with high-efficiency gas-fired...
Expanding a health-care provider's services invariably requires the modification of an existing structure or the construction of a new one. Because engineers...
The one constant about technology is that it always is changing. Two major categories of technology in health-care facilities are information-technology (IT) and procedure rooms. This article will discuss the cooling of IT facilities and highlight some of the differences between IT facilities and procedure rooms. ...
The control of all-variable-flow chilled-water systems is thought to be so complicated and, thus, difficult for operators to understand that many engineers and designers resist converting their primary/secondary systems, even though the return on investment of such a conversion is measured in weeks, rather than years, with chilled-water-plant energy consumption reduced by at least 10 percent and often by 20 percent or more. ...
Airflow-measurement-device selection is critical to the performance of today's state-of-the-art HVAC control systems, as accuracy and repeatability can...
School districts in Southern California are looking to increase the number of their schools that have air conditioning in an attempt to improve learning...
Recycled-fabric duct The fabrics used to make Sedona-Xm and Coronado duct are now made with 55-percent recycled content. Also available is Rx, a permeable...
Owned and operated by Share Foundation, a not-for-profit public charity, Life Touch Hospice in El Dorado, Ark., opened its 16-bed John R. Williamson Hospice...
In response to stricter effluent regulations, the 107-bed Pomerado Hospital in Poway, Calif., was looking for an alternative to the traditional chemicals it was using to treat scale, corrosion, and bacteria in its 600-ton cooling tower. After examining options from several vendors, the hospital chose a non-chemical treatment system from VRTX Technologies....
At a major automotive assembly facility, cottonwood seed, insects, and other debris were getting drawn into the cooling tower, building up in the fill...
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