MAN Diesel & Turbo Improves WHR Systems
MAN Diesel & Turbo used the world premiere of its MAN B&W ME-GI gas engine in Copenhagen to present efficiency technologies for its twostroke engines, namely its WHR (Waste Heat Recovery) systems, that include its TCS-PTG turbines, and which are offered as an integrated solution.
WHR exploits exhaust-gas energy and is designed to be used in the production of electricity to cover a ship’s electrical needs. All ME- and MC- types in MAN Diesel & Turbo’s engine portfolio are suitable for WHR where, generally speaking, the greater the engine output, the greater the potential WHR offers. As a result, WHR technology has traditionally been applied to container-ship and power-station applications.
MAN Diesel & Turbo offers WHR system packages with exhaust boiler, steam and power turbine generator unit, PTO/PTI and power management. High-load optimization is a major part of the WHRS principle where a power turbine is placed in parallel with the main-engine turbochargers and/or steam turbine, thus utilizing the heat from the exhaust gas after the turbochargers. Up to approx. 10% MCR power can be obtained with a full WHR system, featuring both power and steam turbines.