“When faced with the challenge of building one of the largest waste-to-energy plants in its history to date, our French client – CNIM – contacted us at an early stage. Thanks to an excellent cooperation, MAN supported CNIM in the development of various, optimal solutions for turbine-generator sets and finally won the contract,” said Holger Kube, Head of Sales – Steam Turbines – MAN Diesel Turbo, Oberhausen.
CNIM’S Environment Division, based in Vélizy in south-western Paris, is general contractor (EPC) for the Wilton 11 project. CNIM has valuable experience from previous projects involving MAN Diesel Turbo steam turbines. “MAN Diesel Turbo has brought a comprehensive, technical competence to our project and is a partner that we know we can rely on,” stated Olivier Serres, Steam Turbine Condenser Purchaser at CNIM.
In addition to supplying the turbine, the contract also includes the generator, condenser, lube-oil system and the complete instrumentation-and-control technology. Mark Renner, MAN’s Project Manager for this important order, said: “Because of the time-critical construction process, it is necessary to install the steam-turbine generator set in the machine house at an early stage. We highly appreciate that CNIM, in recognition of our qualities, has entrusted us with the critical task of managing the delivery and commissioning of the MAN-supplied equipment on-site. It is only by successfully managing these initial steps that subsequent construction activities can stick to their timeline.”
All necessary preparations for building up the turbogenerator, such as ordering materials, have already been made by MAN Diesel Turbo in Oberhausen. The aim is to complete and ship the 185-metric tons steam turbine in the spring of 2015.
The end-customer and operator, SITA Sembcorp UK, will dispose up to 60 metric tons of waste per hour on two incineration lines. The generated heat will produce live steam, which will then expand in the steam turbine to drive the coupled electrical generator and generate electricity. The steam turbine is equipped with one controlled extraction and several bleeds, which will be used to feed the industrial complex’s process-steam network.
“This plant concept requires, operations-wise, a highly flexible steam turbine,” explained Kube. “This is what we accordingly have designed so that it can operate over a very wide range of operating-load points and is also suitable for island-mode operation.” Island mode occurs when the plant is able to supply the industrial complex with electricity to meet its own requirements in the event of a power outage from the local grid.
With this latest contract from CNIM, MAN Diesel Turbo is once again setting a benchmark in the industrial and decentralized power-generation sector. “Our orders over the past few months show how flexibly our steam turbines can be employed, even for the most diverse of applications – ranging from the 125-MW Shams 1 solar thermal-power plant in Abu Dhabi, to the waste-heat generator bound for a Finnfjord AS smelting works in Norway, and all the way to the Wilton 11 project currently underway in the UK,” reflected Holger Kube.
He concluded: “The Wilton 11 order is the logical extension of our steam-turbine references to waste-to-energy plants since all recent European projects involving large steam turbines have been awarded to us.” These include new-builds in Bremen (50 MW), Turin (66 MW) and London Belvedere (80 MW).
Ole Hansen, Vice President Steam Turbines at MAN Diesel Turbo, added: “We are delighted that our products have been so successful and have proven their worth in the fiercely competitive market of highly-efficient industrial-power generation. This underlines the competitiveness of our concept of installing a modular system with extremely well-referenced components as the basis for tailor-made customer solutions.”