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Video: Ratioing Fresh Air and Fuel Flow to Furnace
2015-09-09 21:41:00| Chemical Processing
The scrubber duct inlet temperature controller adjusts the opening of the fuel gas valve. Opening only the fuel gas valve affects the hot air temperature. To increase the heat input at a constant hot air temperature, both the fuel gas valve and the fresh air damper must open. This video presents a ratio control configuration that enables the scrubber duct inlet temperature controller to simultaneously change the openings of the fuel gas valve and the fresh air damper, the objective being to minimize the effect on the hot air temperature. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Planar XY Air Bearing Stage provides vibration-free motion.
2015-09-09 14:31:08| Industrial Newsroom - All News for Today
Offering travels up to 200 x 200 mm, A-311 PIglide IS Series features fully preloaded air bearings that provide frictionless motion, resulting in negligible hysteresis or reversal error. Single base plate design facilitates integration in tight spaces. By eliminating height and overhung loads of XY stack design, stage achieves 0.1 µm/in. straightness and flatness and roll/pitch/yaw errors of 1–2 arc-sec. Position information down to 1 nm resolution comes from integrated linear encoders.
Tags: air
stage
motion
bearing
Norwegian airports to deploy Saabs air traffic surveillance technology
2015-09-09 13:27:00| Airport Technology
Norways air navigation service provider Avinor Air Navigation Services (Avinor ANS) is deploying Saabs wide area multilateration (WAM) technology for air traffic surveillance across the countrys airports.
Tags: technology
air
traffic
surveillance
NATO NCI Awards AYESAS Procurement Contract for Air Traffic Management Gateways
2015-09-09 11:19:00| Naval Technology
Aydin Yazilim ve Elektronik San. A.S. (AYESAS) of Turkey is awarded a contract for the delivery of an air traffic management gateway for 11 air command control system (ACCS) LOC1 static sites, by NATO Communications and Information (NCI) Agency.
Tags: management
air
contract
awards
Southern California Air Board Adopts New Rules for Oil Fields
2015-09-08 13:46:00| Climate Ark Climate Change & Global Warming Newsfeed
LA Times: Urban oil fields in Southern California must improve the way they control odors and respond to complaints from nearby residents under new rules adopted Friday by air quality officials. The regulations approved on an 11-2 vote by the South Coast Air Quality Management District board come after a surge of complaints in recent years over noxious fumes in South Los Angeles, Huntington Beach, Whittier and other communities where oil production facilities operate near homes and schools. The highest-profile...
Tags: board
air
rules
california
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