EMISSION MEASUREMENTS PARTICLES AND NOX FROM HFO AND MGO

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EMISSION MEASUREMENTS PARTICLES AND NOX FROM
HFO AND MGO
Hulda Winnes, PhD student Shipping and Marine
Technology
IVL and Chalmers Sponsored by Hugo Heymans
research fund and Swedish EPA
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New regulations on sulphur content in marine
fuels agreed upon in the IMO which are likely to
enforce a change from HFO to distillate oils
within emission control areas (ECAs)
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(www.acidrain.org)
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Particle emissions partly connected to
sulphur-content of fuel. No regulations on
emissions to air of particles from marine
transport. Increasing awareness of health
implications following high PM levels in air
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Ships compared to trucks

• Euro I (1992) 0.4g/kWh
• Euro IV, V (2006) 0.02g/kWh
• Ships - literature values 0.5 - 0.8g/kWh (RO)

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New regulations on NOx Usually a certain
reduction is observed when distillates are
combusted
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Aim to produce more accurate figures on emissions
from ships for different fuels.
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Four-stroke diesel engine (ME) Product tanker,
11,000 dwt Delivered 2007 Three steady-state
loads 50, 70 and 90 plus manoeuvring
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Three techniques for particle-measurementsSizes
gt0.3µm diameter
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Some results Emission factors in (g/kWh) for
particles differed approximately by a factor of
two. No decrease in numbers for the smallest
sizes after a fuel shift. Larger share of small
particles during manoeuvring NOx reduction by
about 11 during full speed
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Thank you for your attention!
hulda.winnes_at_chalmers.se