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New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

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In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). Taking the full-life average tire emissions, that premium falls to the 1,850 times mentioned earlier, the company said.

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Rolls-Royce supplying two mtu gas engines for first LNG-hybrid tugboat

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Rolls-Royce is supplying two mtu 16V 4000 M55RN gas engines to Sembcorp Marine Integrated Yard for the construction of the first liquefied natural gas (LNG)-hybrid powered tug. This is the first LNG-hybrid tug to be powered by mtu gas engines. The new engines are part of Rolls-Royce’s Green and High-Tech program.

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MAN ES reports Tier III exhaust-after-treatment orders for low-speed engines pass 1,000

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Approximately one-quarter of the orders have been for EGR (Exhaust Gas Recirculation) systems, with SCR (Selective Catalytic Reduction) systems accounting for the remainder. The milestone was passed in early January 2021 and is built upon references from the company’s portfolio of ME-B, ME-C and MC-C fuel-oil engines.

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First MAN ME-GA Otto-cycle engine completes gas trials

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MAN Energy Solutions announced that the first ME-GA engine has completed gas trials aboard an LNG carrier built by Hyundai Samho Heavy Industries (HSHI) for Norwegian shipping company, Knutsen OAS Shipping. The new engine is an Otto-cycle variant of the company’s successful ME-GI engine. —Thomas S.

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Cummins and Cummins Westport recalling 25,013 natural gas engines over exhaust fire risk

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are recalling a total of 25,013 Cummins Westport Model ISL G and ISX12 G natural gas engines manufactured between 2007 and 2014 due to a risk of elevated exhaust temperatures or flames from the exhaust under certain conditions. The company investigated, and was able to duplicate the condition. Cummins Inc.

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Yamaha and Sumitomo demo on-board thermoelectric generator for CO2 reduction

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a Sumitomo Corporation Group company, jointly demonstrated a new waste heat recovery system based on a thermoelectric generator (TEG), which generates electrical power via exhaust gas heat. The companies estimate the potential benefit of the TEG to be up to 3.1% An additional test achieved the target gas temperature.

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WinGD and HHI-EMD extend collaboration to develop sustainable two-stroke engine technology

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Under a joint development agreement signed at the Kormarine 2021 exhibition in Busan last month, the two companies will together develop engine solutions that further reduce greenhouse gas emissions from methane while improving both the engine’s efficiency and footprint for reduced costs. development. The X82DF-2.0

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