Depending on the condition of the engine and turbochargers, the Wärtsilä Turbogenerator can improve engine efficiency by up to 1.5% through an increase in electricity production. It does this by using the waste exhaust gas by-passed from the turbocharger to drive the generator, with no impact on the engine’s operation, performance, or emissions.
The Wärtsilä Turbogenerator represents a sound investment having a direct effect on overall plant operational efficiency. The extra generated power can be used to increase the overall power output of the engine, or alternatively, the total net power may be kept constant, but with reduced fuel consumption. The solution is most beneficial to base load power plants, where there is a need for high electrical efficiency and high availability for additional capacity. It also benefits peaking power plant operators dealing with high energy prices and a need for additional reserve capacity.
The Wärtsilä Turbogenerator consists of an additional exhaust turbine placed in the waste gate line after the standard waste gate.
A high-speed permanent magnet generator is assembled directly onto the shaft of the new turbine, thus generating electrical power when there is a flow of exhaust gases in the waste gate/ turbocharger by-pass.
Automatic isolation capability ensures continuous engine operation.
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Wärtsilä is a global leader in advanced technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers.