Presentation on theme: "TEKNOLOGI PENGENDALIAN EMISI ( 2 SKS) Jurusan Teknik Sistem Perkapalan ITS Surabaya."— Presentation transcript:
TEKNOLOGI PENGENDALIAN EMISI ( 2 SKS) Jurusan Teknik Sistem Perkapalan ITS Surabaya
IMO Regulation IMO Regulation (MARPOL 73/78 Annex VI) Regulation International Maritime Organization (IMO) is an agency of the United Nations which has been formed to promote maritime safety. It was formally established by an international conference in Geneva in 1948, and became active in 1958 when the IMO Convention entered into force (the original name was the Inter-Governmental Maritime Consultative Organization, or IMCO, but the name was changed in 1982 to IMO) IMO ship pollution rules are contained in the “International Convention on the Prevention of Pollution from Ships”, known as MARPOL 73/78. On 27 September 1997, the MARPOL Convention has been amended by the “1997 Protocol”, which includes Annex VI titled “Regulations for the Prevention of Air Pollution from Ships”. MARPOL Annex VI sets limits on NOx and sulfur oxide emissions from ship exhausts, and prohibits deliberate emissions of ozone depleting substances.
Type4S60MC5S60MC6S60MC7S60MC8S60MC Cylinder No Nominal MCR at 105 RPM 8160 kW10200 kW12240 kW14280 kW16320 kW Total length6.90 m8.00 m9.00 m10.10 m11.20 m Total height11.25 m11.55 m12.05 m12.25 m12.55 m Total width8.10 m 8.60 m Exhaust gas Flow kg/h96600 kg/h kg/h kg/h kg/h m 3 /h m 3 /h m 3 /h m 3 /h m 3 /h NOx*1500 ppm SOx*600 ppm PM* 0.12 g/m g/kWh Specifications of MAN B&W S60MC types
TierDateNOx Limit, g/kWh n < < n < 2000n > 2000 Tier I x n Tier II x n Tier III2016*3.49 x n *In NOx Emission Control Areas (Tier II standards apply outside ECAs)
Ships must fit an exhaust gas cleaning system or use any other technological method to limit SOx emissions to ≤ 6 g/kWh (as SO 2 mass). Baltic Sea North Sea
Reduction Methods Primary Methods 1. Fuel Substitution (High grade fuel, water emulsion, water injection) 2. Combustion Modification (Injection timing retard, modified injector, Miller system, EGR) Secondary Methods SCR Seawater Scrubber etc.
S O HC CH S H S R R S R S S R R mercaptanes sulphides bisulphides thiophene thiopyrone
MDO Marine Diesel Oil HFO Heavy Fuel Oil Berat jenis (kg/m 3 ) Kekentalan (cst pada 50 o C) Titik nyala ( o C) Titik tuang ( o C) Carbon Residu (%mass) Ash (%mass)< Belerang (%mass) Nilai kalor (MJ/kg)4042 Spesifikasi Bahan Bakar
LIFAC : Limestones Injection into the Furnace and Activation of unreacted Calcium