SYS-098 · SYSTEM
SCR / EGR (NOx Tier III)
탈질장치(SCR/EGR)
Nitrogen-oxide abatement for strict emission areas: selective catalytic reduction (SCR) treats exhaust with urea over a catalyst, while exhaust gas recirculation (EGR) reduces NOx formation inside the engine.
- Public record ID
- SYS-098
- Functional Category
- CAT-12 · Environmental Protection Systems
- Released Component records
- 6
- Evidence state
- Reference taxonomy — not project verified
SYSTEM CONTEXT
- Functional Category
- CAT-12 Environmental Protection Systems
- Family reference-profile markers
- ● 0 Standard · ○ 21 Common · △ 0 Variant · 0 unmarked
- Component coverage
- 6 released source-BOM records
- Relationship meaning
- Family markers describe reference applicability. Component links are released source-BOM listings and do not assert complete engineering containment.
FAMILY REFERENCE APPLICABILITY
Family profiles carrying a source marker.
Unmarked Families are not listed; an unmarked cell means “not normally fitted” in the source Family profile, not confirmed absence from a vessel.
Oil tankers
○ Common / conditionalView Family profile →CHEMICALChemical tankers
○ Common / conditionalView Family profile →LNGLNG carriers
○ Common / conditionalView Family profile →LPG / GASLPG, ethylene, ethane, ammonia, CO2, hydrogen and gas-bunkering carriers
○ Common / conditionalView Family profile →BULKBulk carriers and specialised dry-bulk carriers
○ Common / conditionalView Family profile →GEN CARGOGeneral and specialised break-bulk cargo ships
○ Common / conditionalView Family profile →MPP / HEAVY PROJECTMultipurpose, open-hatch, deck, heavy-lift and heavy-transport ships
○ Common / conditionalView Family profile →CONTAINERContainer ships
○ Common / conditionalView Family profile →RO-RO / PCTCRo-ro cargo and vehicle carriers
○ Common / conditionalView Family profile →REEFERRefrigerated cargo ships
○ Common / conditionalView Family profile →FISHING / AQUACULTUREFishing vessels, factory trawlers and live-fish carriers
○ Common / conditionalView Family profile →CRUISE / PAXCruise and passenger ships
○ Common / conditionalView Family profile →ROPAXRo-ro passenger ferries
○ Common / conditionalView Family profile →OFFSHORE SUPPLY / WINDPSV, AHTS, OSV/SOV and CTV
○ Common / conditionalView Family profile →OFFSHORE CONSTRUCTION / SUBSEACable, pipe, diving, subsea construction, WTIV and intervention vessels
○ Common / conditionalView Family profile →OFFSHORE PRODUCTION / PROCESS / STORAGEDrillship, FPSO, FSO, FSU, FLNG and FSRU
○ Common / conditionalView Family profile →DREDGING / MARINE CONSTRUCTIONDredgers and hopper dredgers
○ Common / conditionalView Family profile →TUG / RESCUE / WORKBOATTugs, ERRV/standby, pilot and search-and-rescue craft
○ Common / conditionalView Family profile →RESEARCH / SURVEY / ICE / SPECIALResearch, hydrographic, seismic and icebreaking vessels
○ Common / conditionalView Family profile →YACHTLarge yachts and superyachts
○ Common / conditionalView Family profile →GOVERNMENT / PATROLPatrol and government service vessels
○ Common / conditionalView Family profile →RELEASED SOURCE-BOM LISTING
Released Component records.
Coverage is partial and Family-independent: selecting a Family does not alter the Component records linked to this System.
SCR reactor or EGR scrubber
선택적촉매환원(SCR) 반응기 또는 배기가스재순환(EGR) 스크러버Either the catalyst vessel where urea reduces nitrogen oxides in the exhaust, or the scrubber cleaning exhaust for recirculation back into the engine.
Design dependent · As required / design dependentView Component record →COMP-498 · PumpUrea dosing unit
dosing 유닛The unit injecting the correct amount of urea reagent into the exhaust ahead of the catalyst.
Design dependent · As required / design dependentView Component record →COMP-499 · Tank / VesselUrea reagent tank
reagent 탱크The tank holding urea solution, sized for the time the ship must operate in emission control areas.
Design dependent · As required / design dependentView Component record →COMP-500 · PumpReagent / scrubbing water pumps
펌프The pumps circulating reagent or scrubbing water through the abatement plant.
Design dependent · As required / design dependentView Component record →COMP-501 · Compressor / BlowerEGR blower and cooler
블로어/coolerThe blower and cooler conditioning recirculated exhaust gas before it returns to the engine intake.
Design dependent · As required / design dependentView Component record →COMP-502 · Instrument / SensorNOx emission monitoring
감시The analysers proving the emitted nitrogen oxides meet the Tier III limit — the evidence the system works.
Design dependent · As required / design dependentView Component record →