Section
3 Information to be submitted
3.1 General
3.1.2 A description
of the emissions abatement plant and the abatement technique(s) used.
This is to include details of the proposed combustion machinery operating
configurations using a common emissions abatement system for multiple
exhaust gas inlet streams and any limitations on the operation of
combustion machinery connected to the emissions abatement system.
3.1.3 Where
emissions abatement plant makes use of more than one abatement technique,
e.g. separate means for reducing NOx and SOx, details demonstrating
their compatibility with the combustion machinery and with each other.
3.1.4 Diagram(s)
showing the process flows.
3.1.5 Details
of the maximum and minimum ambient and sea-water temperatures within
which the emissions abatement plant is to operate, and maximum and
minimum ambient air temperature and humidity where applicable.
3.1.6
Risk Based Analysis (RBA). The RBA required by Vol 2, Pt 1, Ch 3, 3.3 Calculations and specifications 3.3.8 is to include consideration of the
emissions abatement plant. It shall specifically detail the hazards associated with
operation, maintenance and reasonably foreseeable failure of the emissions abatement
plant and the means by which they are mitigated, demonstrating that the operation of
Mobility and/or Ship Type systems shall not be impaired by such scenarios. See
also
Vol 2, Pt 1, Ch 3, 18 Risk Assessment (RA).
3.1.7 Details
of any fuel treatments, fuel additives or fuel emulsification used
as a primary means of emissions abatement from combustion machinery,
together with a manufacturer’s letter confirming the suitability
of combustion machinery to operate with such treatments and additives.
Details are to include evidence that materials, fuel filtration and
arrangements for the control of viscosity and temperature have been
suitably modified, along with evidence of the suitability of fuel
pumps and fuel valves for the treated fuel, with particular attention
to viscosity, lubricity and stability, as applicable.
3.2 Materials
3.2.1 Details
of the materials proposed for all types of construction.
3.3 Chemical substances
3.3.1 Details of the flammability, toxicity, corrosivity and reactivity of any
chemicals used, together with details of any exothermic and hazardous reactions,
particularly with regard to sea-water. This is to include effluent and sludge associated
with emissions abatement plant and the corrosivity of wash water for wet scrubbing
systems.
3.3.2 General
arrangement of spaces where toxic or flammable liquids, gases, dusts
or vapours are stored or may accumulate, indicating the hatches and
other access openings.
3.3.3 Details of arrangements for loading, storage, transfer and disposal of
chemicals, by-products or waste products; this is to include allowable maximum and
minimum storage temperatures for substances which are sensitive to temperature.
3.3.4 General
arrangement showing spaces maintained at an over-pressure to prevent
the ingress of gases, dusts or vapours.
3.3.5 Details
and arrangements of blowdown and bleed-off systems, where applicable,
including quantities of chemicals, substances and effluents and the
capacity and working pressure of tanks and receivers installed for
the reception of such substances and effluents.
3.3.6 Arrangements
for purging, gas freeing, inerting or otherwise rendering safe of
the emissions abatement plant and storage facilities for chemicals,
effluent and by-products associated with the plant.
3.3.7 The
flow and return flow of chemicals, substances, effluent or by-products,
including:
-
Substance supply
and product discharge, with details of the arrangements showing the
location of shut-off valves and of the control and indicating stations.
-
The process plant
parameters and analysis of conditions under which emergency shutdown
will be initiated.
-
Measures to eliminate
risk of process fluid reverse flows which could present a risk to
propulsion engines, auxiliary engines and essential services.
-
The proposed
emergency procedures for controlled shutdown of the plant, i.e. depressurising,
isolating and the arrangements for the continued operation of the
essential services necessary to allow for such controlled shutdown
under the emergency conditions identified in Vol 2, Pt 12, Ch 1, 3.3 Chemical substances 3.3.7.(b), as applicable.
3.3.8 Proposals
for the decontamination of the emissions abatement plant compartments
for installations using chemicals, substances and/or producing effluent
or by-products or where there is a possibility of generating hazardous
substances during the operation of plant. These proposals are to include
both normal operating requirements for decontamination (such as for
carrying out maintenance) and post-incident decontamination.
3.3.9 Arrangement
for the detection of liquids, gases and vapours where such substances
could present a fire, explosion or health hazard.
3.4 Mechanical equipment
3.4.1 Details
of mechanical equipment associated with the emissions abatement plant
to be installed.
3.4.2 Details
of any safety and pressure-relief devices and their discharge arrangements.
3.4.3 Plans
showing the materials of construction, working pressures and temperatures,
maximum and minimum exhaust gas flows, fuel quality parameters, maximum
and minimum flow rates of any water, fluids, chemicals or substances
required by the process, maximum effluent or by-product discharge
rate resulting from the process.
3.4.4 Details
of the arrangements for protecting the emissions abatement plant,
its tanks and vessels against temperature, over-pressure and vacuum.
Details are to include consideration of storage temperature requirements
and, where applicable, tanks are to be maintained within the temperature
limits of the chemicals and substances they contain so as to avoid
risks of boiling, stress corrosion, freezing and other temperature-sensitive
processes.
3.4.5 Details
of the by-pass arrangements or, where considered unnecessary, evidence
demonstrating that the emissions abatement plant is capable of continued
operation with the expected gas flows. Evidence is to include conditions
where the emissions abatement plant is in a shutdown condition, both
as a result of emergency conditions and when shut down for normal
operational reasons. This is to be supported by detailed proposals
demonstrating material suitability and is to ensure that, where there
is a risk of blockage, this can be monitored so as to ensure that
remedial action can be taken before blockage presents a risk to both
combustion machinery and emissions abatement plant operations.
3.5 Pressure vessels
3.5.1 Plans
of any pressure vessels, including details of their supports. Diagrammatic
plans for systems associated with emissions abatement process equipment
as required by Vol 2, Pt 8 Pressure Plant, as applicable.
3.5.2 Details
of the safety and pressure-relief devices and their discharge arrangements.
3.5.3 Stress
calculations taking into account the ship linear and angular accelerations,
roll and pitch amplitudes, ship flexure and wind loads, appropriate
to any condition which may normally arise at sea.
3.6 Pumping and piping
3.6.1 Plans
of the emissions abatement plant piping systems, showing the materials
of construction, scantlings, support and expansion arrangements, together
with the calculations.
3.6.3 Plans
showing the arrangement and dimensions of main exhaust pipes, with
details of flanges, bolts and weld attachments and particulars of
the materials of the pipes, flanges, bolts and welding consumables.
3.6.4 Details
of the safety and pressure-relief devices and their discharge arrangements.
3.6.5 Details
of air and sounding pipes to tanks containing chemicals, substances
and effluent.
3.6.6 The
arrangements for the storage on board the ship, and the disposal,
of bilge and effluent from the emissions abatement plant spaces, giving
particular consideration to the risk of flooding as a result of emissions
abatement plant failure. Recognition is to be given to the requirements
of the appropriate National Authority.
3.7 Electrical and control equipment
3.7.1 General
arrangement plan of the process plant, showing the location of the
major items of electrical and control equipment.
|