ASHRAE Journal- September 2008

air passes through the front filter when entering the unit, the last filter at exit, and through the HEPA filter at the entrance of the sterile environment. Ecostar exhibited its industrial burners. Its burners are based on microprocessor logic and can be programmed according to application type. Burners are monitored using CO/O2 sensors to get the best airto-fuel ratio for combustion optimization. Oxygen and carbon monoxide values are measured instantly and transferred to the main processor unit. In the meantime, the load signal on the boiler is transferred to the main processor unit. These values are compared with the value recorded in the TM ® Steam and Hot Water “Flexible Tube” Boilers • Exclusive “Flexible Water Tube” design • Full non-prorated 25 Year Warranty protection against thermal shock • High efficiency performance • Simplified maintenance • 15 to 300 lbs. working pressure • 6 to 500 HP • Oil, Gas, Dual Fuel, Electric Contact us for complete information Bryan Steam LLC — Leaders Since 1916 783 N. Chili Ave., Peru, Indiana 46970 U.S.A. Phone: 765-473-6651 • Internet: www.bryanboilers.com Fax: 765-473-3074 • E-mail: bryanboilers@iquest.net www.info.hotims.com/19354-8 BRYAN BOILERS ® capacity-oxygen curve, and according the results, the positions of the servomotors and drivers are controlled and monitored continuously for each capacity point. DemirDöküm displayed an array of stoves, instantaneous gas water heaters, panel radiators and wall-hung gas boilers. The company says its instantaneous gas water heaters work safely and efficiently by using a waste gas pipe system connected to an outer surrounding. Water outlet temperature, flame modulation indicator and failure codes can be monitored on an LCD screen. Ignition is automatically realized and the burner becomes active if a hot water tap is opened while the electronic ignition system and instant heater are at open position. It supplies a thermal power of 350 kcal/min. (1464 J/min.). Demrad demonstrated its new instantaneous gas-fired water heaters. When the hot water trap is closed, the gas inlet is closed to the main burner, preventing waterless burning. When the pilot light goes out for any reason, the system cuts off the gas inlet to the water heater. The main gas valve is the third security valve to prevent unburned gas leakage to the main burners. It also adjusts to the gas flow rate. Solartek exhibited its solar collectors. An aluminum oxide coating with nickel pigmentation was developed so that the collector retains its surface characteristics for many years. The water channels of the Solartek panels are composed of copper pipes. The aluminum selective surface allows the unit to operate at a high level of efficiency. When exposed to a wet environment, it will not be adversely affected as a collector with copper surface would, according to the manufacturer. The Turkish air-conditioning and heating sectors have been developing steadily since the mid–1950s in terms of production and market growth. It is Europe’s fifth-largest market. According to Turkish engineer Numan Sahin, the country’s growing demand for HVAC presents challenges. “There is such demand to build that sometimes the equipment has been bought by the owner before the design is done. This requires a conversion. It’s a big problem.” Coping with growth is a problem that other countries would like to have. September 2008 8 ASHRAE Journal http://www.bryanboilers.com http://www.bryanboilers.com http://www.info.hotims.com/19354-8

Table of Contents Feed for the Digital Edition of ASHRAE Journal- September 2008

ASHRAE Journal- September 2008 Section: Contents Contents Section: Commentary Options for Sustainability Section: Industry News The Silk Route for Energy Solar Thermal Is Unrealized Opportunity Industry Groups Sue City of Albuquerque Section: Letters Letters Section: Meetings and Shows Meetings and Shows Section: Feature Articles Article-Radiant Floor Cooling Systems Article-HVAC Design for Sustainable Lab Article-Mixed Mode Ventilation Article-Single- Design Considerations For Active Chilled Beams Article-Acoustic Design In Green Buildings Article-Teams, Contracts & BIM Section: Building Sciences Some Old Lessons Distilled Section: Washington Report Energy in Federal Buildings Section: Products HVAC&R Product Showplace Section: Emerging Technologies Toplighting & Lighting Controls For Commercial Buildings Section: Special Products Fans & Blowers Section: Classified Ads Classified Ads Section: Advertising Index Advertising Index

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