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The price of fuel oil is going one way only: Upwards. As a result, getting every last bit of energy out of the fuel oil is becoming ever more important for shippers and for power plant operators – in fact, fuel efficiency is in itself becoming a major factor in the global competition.
One way of maximizing the energy efficiency is by recovering energy from waste gases from the engine. In a Waste Heat Recovery System (WHRS), the vast amounts of energy stored in exhaust gases from ships and power plants are extracted and utilized instead of being wasted.
MAN Diesel & Turbo has the components, the expertise and the experience to utilize waste heat energy from ships and power plants.
Typical methods of heat recovery in marine system applications and power plants include direct heat recovery to from waste heat boilers. The exhaust gas of the main engine is used in a boiler system to produce superheated steam to drive a steam turbine. In a combined WHRS, an exhaust gas turbo charger bypass drives a power turbine which enhances the total energy output from the WHRS. By using state of the art components from MAN Diesel & Turbo a recovery rate of up to 12 % of the main engine power can be achieved.
Fuel reductions of 4-11 % are possible, depending on the selected WHRS solution. The larger the engine power, the greater the possible fuel savings. In addition to large fuel savings, a WHRS gives large CO2, NOx, SOx and particulate reduction to the benefit of the environment. Also, the payback time is short.
All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice.