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John Deere Power Systems (JDPS) introduced extended generator drive emergency stationary power ratings for its PowerTech E 6.8L diesel engine—the first John Deere engine to carry both U.S. Environmental Protection Agency Tier 3 Emergency Stationary and European Union Stage III A certification, with dual frequency ratings of 1,800 and 1,500 rpm. The 212-kW rating at […]

Spirax Sarco launched the TD120M Thermo-dynamic Steam Trap, a product engineered for pressure ratings of up to 3,190 psig that is ideal for draining saturated and superheated steam mains. The steam trap has a maintainable disc and seat, which means it can be serviced in-line—a considerable benefit to customers with welded installations. The trap has […]

Rittal’s newly developed TopTherm fan-and-filter units use diagonal technology—an intelligent synthesis of radial and axial ventilation. When installed, it ensures far better air throughput for improved ventilation in enclosures and housings. The new fan technology is characterized by the fact that the air outlet direction is not, as it was previously, in the fan’s axial […]

KROHNE Inc. has added the OPTISOUND VU3X Series continuous ultrasonic level transmitter to its extensive measurement product line to meet the specific level or open channel flow measurement needs of the North American industrial and municipal markets. The OPTISOUND VU30 ultrasonic transmitter provides a reliable, repeatable, and highly accurate (0.15%) continuous level measurement of liquids. […]

Arizona Public Service’s (APS) plan to close three older coal-fueled units at the Four Corners Power Plant in New Mexico and buy out Southern California Edison’s 48% share of the two remaining units is a creative means of surviving the U.S. Environmental Protection Agency’s (EPA) committed action against coal-fueled generation.

All of our legal column writers have this issue off (they’ll be back in the March issue), so we are using this opportunity to invite readers to share their legal and regulatory (L&R) concerns.

In the September and October 2010 issues, POWER Contributing Editor David Daniels explored the causes and damage mechanisms of condenser tube leaks (“Taming Condenser Tube Leaks,” Part I and Part II). Dennis J. Schumerth, Valtimet’s director of business development, took issue with several of Daniels’ statements regarding the proper use of titanium condenser tubes. We have given Schumerth the opportunity to express his concerns and for Daniels to reply.

MHI to Continue Pre-Construction Work for North Anna Unit. Mitsubishi Heavy Industries Ltd. (MHI), through Mitsubishi Nuclear Energy Systems Inc., and Dominion subsidiary Virginia Electric and Power Co. on Dec. 27 said they had reached an agreement to continue pre-construction, engineering, and planning work in preparation for a third unit at Dominion’s North Anna Nuclear […]

Efficient boiler operation requires boiler auxiliary equipment to operate in harmony. The air preheater, for example, though it has few moving parts, is vital to maintaining efficient boiler performance. In this second installment of our Power 101 series, we examine performance degradation caused by corrosion and fouling of the air preheater that results from the combustion of coal plus the effects of ammonia and sodium bisulfite injection for SO₃ mitigation.

San Miguel Electric Cooperative selected and installed an automatic sootblowing system for its Unit 1 to minimize clinkers in the boiler that caused semi-annual unscheduled outages. New boiler surface-cleaning equipment and intelligent cleaning software eliminated these expensive outages.