PE Volume 121 Issue 11

Low NOx burner retrofits to an existing boiler, dryer or incinerator aren’t as simple as pulling out the old burner and bolting in a new one. There is so much more that needs to be considered as part of the engineering and purchase decision process.

The 150-mile journey took 36 hours, and the unit had to pass under 19 bridges – the lowest of which left us with just 9 feet to spare. It sailed past the Statue of Liberty and to the Woodbrige site, where a 60-foot steel ramp bridge was erected to drive the entire HRSG directly on to the site.

The unpredictability of renewable assets that operate only when the wind blows and the sun shines require more frequent cycling, start/stops, and ramping of assets that accelerates equipment wear-and-tear.

Both reciprocating engines and aeroderivative simple cycles offer the ability to start fast and cycle frequently to support peaks in demand and the inherent intermittancy of renewable generation.

When Startup teams conduct overall-plant efficiency testing of new combined-cycle projects, they often overlook one of the necessary correction factors.