Engine & Turbine Technology 


RENOVATION Revolutionary


Energy from waste plant generator restored to ‘as-new’ performance levels in flawless overhaul


The alternator received a complete overhaul


W


hen a major integrated waste management facility (IWMF) based in Lincolnshire, UK,


discovered that the alternator mounted on the rear of its main steam turbine was becoming increasingly contaminated with dirt and dust, the plant’s technical team took the decision to commission a total overhaul of the system. Leroy Somer, the manufacturer of the alternator, won the tender for the


30 www.engineerlive.com


overhaul based on its OEM status and level of expertise. Te work took place at the company’s Orléans, France facility and was completed successfully within a strict three-week window, working first time upon reinstallation and is now operating at ‘as-new’ performance levels. In 1999, Newlincs entered into a 25-


year contract with North East Lincolnshire Council to manage its household and municipal waste. Jointly operated by Grimsby Operations, a subsidiary of TIRU, the IWMF started operation in 2003,


processing 56,000 tonnes of municipal solid waste per year. Electric power generation for use on site (and for export) is performed by a steam turbine coupled to a Leroy-Somer LSA 56 alternator delivering 4700kVA and 11kV. Trough the incineration of waste and the use of heat to produce electricity, the IWMF produces a quantity of energy equivalent to that used by 10,000 families. “Clearly, the steam turbine is a core element of operations at our combined heat and power (CHP) plant,” states plant


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