By MICHAEL LUSTER, PE, LEED AP; MEP Associates LLC; Eau Claire, Wis.
The engineering community is at the beginning of a transformation in how geothermal heating and cooling systems are applied. For many years, these systems have been used for individual buildings. The next step in the development and implementation of geothermal technology is campus systems.
Danfoss, manufacturer of high-efficiency electronic and mechanical components and controls for air-conditioning, heating, refrigeration, and motion systems, recently named Smardt Chiller Group Inc., Montreal-based manufacturer of oil-free centrifugal chillers, the winner in its third annual EnVisioneer of the Year award competition.
TRIPLE-FLEX™ ULTRA-HIGH EFFICIENCY BOILERS Bryan Triple-Flex™ (patent pending) Ultra-High Efficiency Condensing Boilers feature flexible stainless steel tubes, minimum thermal efficiency of 90% with 160° return, 180° supply at maximum input. Efficiencies of 99% are achievable with lower return water temperatures as found in new building designs. Triple-Flex fires at 3,000 MBH input, with sub 30 PPM NOx utilizing a hybrid metal fiber 5:1 turndown burner. Triple-Flex features UL environmental claims validation. Triple-Flex boilers are suited to deliver the industries highest operating efficiencies up to 99% in new buildings designed for condensing boiler conditions and better than 90% efficiency in retrofit applications not designed for condensing boilers. Click here for more info. --Bryan Steam LLC
Honeywell Power Products recently released Power Supply Selector, a free Web application intended to help installers and equipment wholesalers quickly determine the appropriate power supply for fire-alarm, video, intrusion, and access-control systems.
AP Coilflex® Duct Liner from Armacell is now available in 1-1/2" and coming soon in 2". Fiber-free AP Coilflex elastomeric foam duct liner is ideal for air handling systems, VAV units, ducts and other air system components requiring condensation control and resistance to moisture, damage or heat gain. AP Coilflex duct liner reduces the noise generated by fans and air movement, making it especially effective for schools, hospitals, commercial and government buildings where good acoustics are important. Click here for more. —Armacell
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