Section 3 Information to be submitted

3.1.1 The information required by this Section and the information required by Pt 3, Ch 1, 2 Direct calculations is to be submitted.

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 where using a common emissions abatement plant for multiple exhaust gas inlet streams and any limitations on the operation of combustion machinery connected to the emissions abatement plant.

3.1.3 Where emissions abatement plant makes use of more than one abatement technique, e.g. separate means for reducing NO_x and SO_x, details demonstrating their compatibility with the combustion machinery and with each other.

3.1.4 Diagram showing the process flows.

3.1.5 A list of system main components and associated ancillaries.

3.1.6 Details of the hazards associated with operation and maintenance and reasonably foreseeable failure of the emissions abatement plant and the means by which they are mitigated in accordance with the requirements given in Pt 5, Ch 24, 6 Mechanical equipment. The details of impact on the operation of essential services due to failure of the emissions abatement plant and proposed mitigation measures are to be submitted. .

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.

3.1.8 Material Safety Data Sheets (MSDS) and details for handling of hazardous and non-hazardous chemicals used in the emissions abatement plant in accordance with Pt 5, Ch 24, 6.1 General 6.1.7.

3.1.9 Testing procedures for installation and commissioning trials.

3.1.10 Where failure of components and equipment in the emissions abatement plant will affect essential services, appropriate certification for such components and equipment shall be submitted as agreed with LR.

3.1.11 Exhaust back-pressure calculations in accordance with Pt 5, Ch 24, 6.4 Maintenance of back-pressure.

3.2.1 Details of the materials proposed for all types of construction.

3.2.2 Plans showing the foundation and attachments of emissions abatement plant to the ship structure, including scantlings, and welding details.

3.2.3 Full details of the structural reinforcement required to support the proposed emissions abatement plant are to be submitted, including plant type, size, location and loadings (dynamic and static) to allow verification of the submitted structural design and calculations for the plant support arrangements.

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.

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 bleedoff 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:

1. Substance supply and product discharge, with details of the arrangements showing the location of shut-off valves and of the control and indicating stations.

2. The process plant parameters and analysis of conditions under which emergency shutdown will be initiated.

3. Measures to eliminate risk of process fluid reverse flows which could present a risk to propulsion engines, auxiliary engines and essential services.

4. 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 Pt 5, Ch 24, 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 byproducts 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, gas and vapours where such substances could present a fire, explosion or health hazard.

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 propulsion and auxiliary engine and emissions abatement plant operations.

3.5.1 Plans of any pressure vessels, including details of the support of the vessels. Diagrammatic plans for systems associated with emissions abatement process equipment as required by Pt 5, Ch 10 Steam Raising Plant and Associated Pressure Vessels and Pt 5, Ch 11 Other Pressure Vessels, 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.

3.6.1 Plans of the emissions abatement plant piping systems, showing the materials of construction, scantlings, support and expansion arrangements, together with the calculations.

3.6.2 Diagrammatic plans for systems associated with emissions abatement process equipment, as required by Pt 5, Ch 12 Piping Design Requirements, Pt 5, Ch 13 Ship Piping Systems and Pt 5, Ch 14 Machinery Piping Systems of the Rules and Regulations for the Classification of Ships, July 2022, as applicable.

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. An inspection and maintenance schedule is to be submitted, describing the items such as, but not limited to, inspection procedures for coating, pipe corrosion and their inspection intervals.

3.7.1 General arrangement plan of the process plant, showing the location of the major items of electrical equipment.

3.7.2 Line diagram of the installation(s), indicating the rating of the various items of rotating machinery, converters and transformers.

3.7.3 Arrangement plans and circuit diagrams of the switchboards.

3.7.4 General arrangement plan of the process plant, showing the location of electrical equipment in hazardous zones.

3.7.5 A schedule of safe-type electrical equipment located in hazardous zones, giving details of the type of equipment employed, the certifying authority and the certificate number.

3.7.6 Line diagrams of any control system(s) fitted.

3.7.7 General arrangement plan of the process plant, showing the locations of items of control equipment and the locations of hazardous zones.

3.7.8 Schedule of the parameters which are monitored and controlled, including alarms and shutdown devices.