MAN Diesel & Turbo Engines Exploit Energy Efficiency Technology

Opcon Powerbox technology offers fuel savings of 5-10% and reduced emissions


MAN Diesel & Turbo has signed a cooperation agreement with Swedish energy and environmental technology company, Opcon. The agreement aims to exploit the possibilities arising from the merging of Opcon’s ‘Powerbox’ waste-heat-recovery (WHR) technology with MAN Diesel & Turbo’s market-leading diesel engines for cutting fuel consumption and reducing emissions.

As the world’s leading provider of large-bore diesel engines and turbomachinery for marine and stationary applications, MAN Diesel & Turbo prizes innovation, optimal energy efficiency and fuel consumption, as well as minimal costs and emissions. Together, MAN Diesel & Turbo and Opcon will examine how best to exploit the possibilities offered by re-using waste-heat energy from low-temperature heat sources utilising the Opcon Powerbox technology.

The first, groundbreaking reference, a marine installation that utilises waste heat for electricity production, is currently underway. Here, the Opcon Powerbox is being integrated with a two-stroke MAN B&W 8S60ME-C8 engine aboard a newbuilding owned by Wallenius, the Swedish shipping group.

Opcon Powerbox
A waste-heat recovery unit is an energy-recovery heat exchanger that recovers heat from hot streams with potentially high energy-content. Waste-heat recovery is currently considered one of the most promising avenues within the shipping sector for reducing fuel consumption and CO2 emissions by increasing energy efficiency.

The Opcon Powerbox is a stand-alone power plant that transforms waste heat from diesel engines to emission-free electricity. In recovering waste heat, both from exhaust gases and engine-cooling water, the Opcon Powerbox facilitates improved energy efficiency and reduced emissions for both newbuildings and retrofits. Its solid construction and easy installation, combined with microprocessor controls and remote operation, deliver high operational reliability.

The Opcon Powerbox is unique in that it caters for low-temperature applications and uses robust technology. Accordingly, it can be integrated with smaller engines in contrast with existing WHR units that are targeted at higher-temperature applications and larger engines.

The Opcon Powerbox directly influences the performance of ships by reducing the amount of fossil fuels they consume during operation by 5-10%. It significantly reduces consumption and directly cuts carbon, NOx and sulphur emissions. There are currently around 16,000 registered marine vessels in the world with power outputs above 10 MW, while the global, commercial-shipping fleet is considered to account for between 4 - 5% of global carbon emissions.

About Opcon
Opcon is an innovative, Sweden-based, energy and environmental technology group that develops, produces and markets systems and products for the eco-friendly, efficient and resource-effective use of energy. With more than 100 years of experience in developing technology and activities in Sweden, China, Germany and the UK, the group concentrates on the two main business areas of renewable energy and engine efficiency. Opcon is listed on the Nasdaq OMX Stockholm.

About MAN Diesel & Turbo
MAN Diesel & Turbo SE, based in Augsburg, Germany, is the world’s leading provider of large-bore diesel engines and turbomachinery for marine and stationary applications. It designs two-stroke and four-stroke engines that are manufactured both by the company and by its licensees. The engines have power outputs ranging from 450 kW to 87 MW. MAN Diesel & Turbo also designs and manufactures gas turbines of up to 50 MW, steam turbines of up to 150 MW and compressors with volume flows of up to 1.5 million m³/h and pressures of up to 1,000 bar. The product range is rounded off by turbochargers, CP propellers, gas engines and chemical reactors. MAN Diesel & Turbo’s range of goods includes complete marine propulsion systems, turbomachinery units for the oil & gas as well as the process industries and turnkey power plants. Customers receive worldwide after-sales services marketed under the MAN PrimeServ brand. The company employs around 12,700 staff at more than 100 international sites, primarily in Germany, Denmark, France, Switzerland, the Czech Republic, Italy, India and China. MAN Diesel & Turbo is a company of the Power Engineering business area of MAN SE, which is listed on the DAX share index of the 30 leading companies in Germany.

MAN Diesel & Turbo, Press Release