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Chalmers study finds ship exhaust gas scrubbers responsible for up to 9% of certain hazardous emissions into Baltic Sea

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New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaust gas treatment systems—i.e., scrubbers—is responsible for up to 9% of certain emissions of carcinogenic and environmentally harmful substances in the Baltic Sea—considerably more than was previously known.

Exhaust 170
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Study finds scrubbers have lower climate impact than low-sulfur fuel

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A recent report from CE Delft, an independent research and consultancy organization, regarding the climate impact of Exhaust Gas Cleaning (EGC) systems for the marine industry. The study compares the results to the use of low-sulfur marine fuels and is made from a well-to-wake perspective in order to achieve an accurate comparison.

Climate 243
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Study measures the effect of regional change in clouds caused by ships’ emissions; masking GHG warming

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This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. Small particles in exhaust from burning fossil fuels creates “seeds” on which water vapor in the air can condense into cloud droplets. Michael Diamond/University of Washington. C, or 1.8 ?F,

Emissions 223
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ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

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Comparison of the potential reduction in emissions with the application of lower sulfur 0.5% While that report projected vessel activity, it did not explore the environmental impacts of increased shipping in terms of air emissions or the potential climate impacts from increases in short-lived climate pollutants such as black carbon.

Pollution 150
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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

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Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. Oh and Plante. Click to enlarge. Oh and Plante.

Engine 329
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bp begins shipping LNG from Mozambique’s first LNG project and first FLNG platform

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Its characteristics include zero flaring during normal operations, the use of thermal efficient aero-derivative gas turbines for refrigerant compressors and generation, the use of Dry Low NO x technology to reduce NO x emission and waste heat recovery systems for the process.

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Scripps research ship fueled by 100% NEXBTL renewable diesel for 1 year; emissions analysis

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Two separate tanks on R/V Robert Gordon Sproul held biofuel and diesel, and the researchers could run the ship’s engine from either source, switching back and forth as needed to collect different emission samples. Black carbon or soot counts were also slightly higher for biofuel.

Renewable 150