1、 Guide for SOxScrubber Ready Vessels GUIDE FOR SOXSCRUBBER READY VESSELS OCTOBER 2015 American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 Copyright 2015 American Bureau of Shipping ABS Plaza 16855 Northchase Drive Houston, TX 77060 USA Foreword Foreword Inter
2、national, regional, national and local air emissions legislation is driving the development of primary machinery technologies to reduce exhaust emissions, together with the use of alternative cleaner fuels, such as LNG, and secondary exhaust emissions aftertreatment systems. Key amongst these emissi
3、ons drivers are the gaseous exhaust emissions legislated through IMO MARPOL Annex VI Regulations 13 and 14 for nitrogen oxide emissions from diesel engines and sulfur oxide emissions from all fuel burning equipment onboard. The IMO limits SOxemissions by regulating the sulfur content of marine fuels
4、 with 0.1% for the emission control areas effective from 1 January 2015 and the anticipated global sulfur limits to 0.5% effective from 1 January 2020 (subject to review in 2018). Additionally, all ships to use fuel with a maximum sulfur content of 0.10% when at berth (including at anchor) in EU por
5、ts since January 2010 and beginning in 2020, the EU will limit sulfur in fuel to 0.5% for operation in EU territorial seas irrespective of the outcome of any IMO determination in 2018. All these will promote increasing use of exhaust gas cleaning systems, such as SOxscrubbers as an alternative to lo
6、w Sulphur fuel. The air emissions performance testing, statutory certification, and statutory survey aspects are regulated through MARPOL Annex VI with any proposed alternative means of compliance, such as exhaust gas cleaning systems, permitted through Regulation 4 in association with any applicabl
7、e IMO Guidelines. At the time of issuance of this Guide, the applicable Guidelines for SOxexhaust gas cleaning systems are IMO Resolution MEPC.259(68) 2015 Guidelines for Exhaust Gas Cleaning Systems, adopted on 15 May 2015. Acceptance of an exhaust emission abatement system as an alternative under
8、MARPOL Annex VI is subject to approval by the flag Administration of the vessel. Users of this Guide should be aware that due to changing regulations, and depending on specific geographical uses, compliance with this Guide may not necessarily reflect all requirements in all regions at the time of co
9、nstruction or future retrofitting. The intent of this Guide is to provide guidance to shipowners and shipbuilders indicating the extent to which a ship design has been prepared or “ready” for the installation and operation of a scrubber for SOxemissions removal. The actual ABS requirements to be app
10、lied for a SOxscrubber are detailed in the ABS Guide for Exhaust Emission Abatement (herein after referred to as the EEA Guide). The purpose of this Guide is to indicate the extent to which a vessel has been prepared or “ready” for compliance with the EEA Guide. Compliance with the applicable editio
11、n of the EEA Guide in force at the time the “SOxScrubber Ready” service is provided does not guarantee compliance with the edition of the EEA Guide as may be applicable at the time of the SOxscrubber retrofit. The EEA Guide has been developed in order to provide guidance for the design and construct
12、ion of exhaust emission abatement systems, focusing on SOxscrubbers, SCR systems, and Exhaust Gas Recirculation (EGR) arrangements, and may be applied to all vessel types. An exhaust emission abatement system is considered approved upon verification of compliance with both the ABS requirements and t
13、he applicable IMO Regulations and Guidelines. Whilst compliance with the applicable IMO Regulations and Guidelines is a pre-requisite for ABS approval and notation, this Guide covers only the Classification approval aspects and statutory approval would be made by ABS as a separate parallel process i
14、n the capacity of a Recognized Organization for the vast majority of flag Administrations. Despite the foreseen trend of using SOxscrubbers, the decision of building a new ship or retrofitting an existing one is not simple, due to the current uncertainty with the entry into force of the 0.5% global
15、sulfur limit and the cleaner fuel alternatives such as LNG. However, considering the promise of the advantages that may be gained from use of SOxscrubber, the shipbuyers may decide to place ship orders with additional provision for using a SOxscrubber with the intention to complete installation in t
16、he future. This arrangement may be called “SOxScrubber Ready”. In order to facilitate future modifications, the shipbuyers and shipbuilders must make a significant effort to figure out what features should be incorporated on a vessel and incorporate these in the shipbuilding contract. ii ABSGUIDE FO
17、R SOx SCRUBBER READY VESSELS .2015 This Guide has been developed considering that the following elements may be desired by owners opting for features of SOxScrubber readiness in the Classification of their vessels. i) The first is an independent and public recognition that a vessel has been designed
18、 intentionally with feasible retrofit of a SOxScrubber in mind and that it has physical features that make it suitable for such a retrofit. ii) The second addresses the need for owners to specify instructions to the builder in terms of Class guidance and requirements. iii) The third provides confirm
19、ation to the owner and the shipbuilder that any vessel features agreed between the two parties have been approved by the Classification society based on their requirements that would be applied if the vessel had been built with a SOxScrubber to the concept proposed. This Guide becomes effective on t
20、he first day of the month of publication. This Guide becomes effective on the first day of the month of publication. The applicable edition of the ABS Rules for Building and Classing Steel Vessels (Steel Vessel Rules) is to be used in association with this Guide. Users are advised to check periodica
21、lly on the ABS website www.eagle.org to verify that this version of this Guide is the most current. We welcome your feedback. Comments or suggestions can be sent electronically by email to rsdeagle.org. ABSGUIDE FOR SOx SCRUBBER READY VESSELS .2015 iii Table of Contents GUIDE FOR SOXSCRUBBER READY V
22、ESSELS CONTENTS SECTION 1 General 1 1 Introduction . 1 3 Application . 1 5 Recognition . 2 SECTION 2 SOx Scrubber Ready Levels 3 1 Level 1 Concept Design Review 3 1.1 Description . 3 1.3 Plans and Data to be Submitted 3 3 Level 2 General Design Review 3 3.1 Description . 3 3.3 Plans and Data to be S
23、ubmitted 4 5 Level 3 Detail Design Approval and Installation 5 5.1 Description . 5 5.3 Plans and Data to be Submitted 5 5.5 Survey . 7 iv ABSGUIDE FOR SOx SCRUBBER READY VESSELS .2015 Section 1: General SECTION 1 General 1 Introduction This Guide is for optional application to ships under ABS Rules
24、for Building and Classing Steel Vessels. It is applied to vessels having design features suitable to permit retrofitting at a future date to install a SOxscrubber system based on existing Class requirements. The requirements for the arrangement and system design of all features of systems proposed a
25、re established in the ABS Guide for Exhaust Emission Abatement (EEA Guide). It is of course recognized that after the retrofitting of a vessel installed SOxscrubber system, the arrangements and installations will still be subject to approval by the flag Administrations and the flag Administration wi
26、ll implement the IMO requirements in effect at the time of retrofitting. The requirements for the testing, survey, certification and verification of the SOxscrubber system to ensure the equivalent compliance of regulations 14.1 and 14.4 of Annex VI of MARPOL 73/78 are specified in the 2015 Guideline
27、s for Exhaust Gas Cleaning Systems which adopted by International Maritime Organization (IMO) Resolution MEPC.259(68). This Guide is to be applied to both new construction and existing vessel retrofitting, regardless of size, utilizing SOxscrubber for SOxemissions removal. 3 Application The objectiv
28、e of this Guide is to define a three (3) leveled “SOxScrubber Ready” scheme, to provide the details and preparations needed for each Level, and to describe the type of recognition that ABS will offer subject to compliance of the requirements at each Level. There are three Levels considered as fundam
29、ental for defining the readiness of a vessel that is requested to be listed under the “SOxScrubber Ready” scheme. A Level 1 Concept Design Review is conducted prior to subsequent application of Level 2 or Level 3. These are briefly described below: Level 1 Concept Design Review This is a high level
30、evaluation of the basic suitability of a particular vessel design to be able to fit a particular SOxscrubber-installed ship concept. Level 2 General Design Review This Level is additional to Level 1, and it is categorized in separate design groups identifying the different parts of the complete desi
31、gn. Level 3 Detail Design Approval and Installation This is the final Level of the “SOxScrubber Ready” scheme and incorporates both the Class Approval of the detailed drawings and the installation of parts of the system and specified equipment onboard the vessel including Survey in accordance with t
32、he related requirements of the EEA Guide. ABSGUIDE FOR SOx SCRUBBER READY VESSELS .2015 1 Section 1 General 5 Recognition Upon satisfactory completion of each review level, ABS shall provide the following recognition of the extent to which compliance with the EEA Guide has been established: Level 1
33、An Approval in Principle (AIP) for the concept design and a Record Statement will be created. Level 2 A suitably worded Statement of Compliance with the applicable Rules at the time of review with conditional information required for actual retrofit. A Record Statement will be created. Level 3 A Cla
34、ss Notation SOx Scrubber Ready with a description note introduced in the Record listing the parts of the system that have been installed in accordance with approved plans and to the satisfaction of the Surveyor prior to delivery of the vessel. Note: In the future once the vessel has undergone a comp
35、lete retrofitting to install a SOx scrubber system that is shown to be in compliance with the EEA Guide, in accordance with approved plans and to the satisfaction of the Surveyor, the above “SOx Scrubber Ready” recognitions will be dropped and the EGC-SOx notation and other appropriate Class Notatio
36、ns associated with a ship featured an exhaust gas cleaning system will be assigned. 2 ABSGUIDE FOR SOx SCRUBBER READY VESSELS .2015 Section 2: SOxScrubber Ready Levels SECTION 2 SOxScrubber Ready Levels 1 Level 1 Concept Design Review 1.1 Description This is a high level evaluation of the basic suit
37、ability of a particular vessel design to be able to feature a SOxscrubber system for emission removal. Basic suitability would mean that the geometry and structural arrangements of the vessel can physically encompass the necessary equipment and the associated systems can be functionally incorporate
38、to the existing marine system in compliance with the EEA Guide at the time of the review. Upon satisfactory completion of this review level, ABS may provide an Approval in Principle (AIP) for this concept design and a Record Statement will be created. 1.3 Plans and Data to be Submitted The following
39、 plans and documentation shall be submitted for review: Ship general arrangement General description and schematic diagram of applied SOxscrubber system General arrangement of the SOxscrubber installation, layout, and systems Arrangement of the machinery space including SOxscrubber system equipment
40、Arrangement and capacity of tanks for storage, chemicals, process washwater, exhaust gas cleaning residues, etc. Exhaust gas system arrangement Washwater system arrangement, if applicable Chemical treatment system arrangement, if applicable Schematic diagram for electrical, control, alarm, and monit
41、oring system Preliminary study on Load Line and Stability in respect to the effect of the SOxscrubber system installations and arrangement 3 Level 2 General Design Review 3.1 Description This Level is additional to Level 1 and it is categorized in separate design groups identifying the different par
42、ts of the complete design. The level of the design details to be reviewed for each system would be general. Detailed information such as particular equipment manufacturers and installations are not required except for the SOxscrubber. For new construction vessels, the drawings and supporting documen
43、tation shall be reviewed for compliance with the ABS Rules for ships having the same applicability date as the Rules applied for Classification of the vessel. Upon satisfactory completion of this review, ABS may issue a suitably-worded Statement of compliance with the applicable Rules at the time of
44、 the review with conditional information required for actual retrofitting. A Record Statement will be created. The reviewed drawings could then be used as part of the future retrofitting project pending flag State approval. The requirements for washwater chemical treatment system described in this g
45、uide are based on the use of Caustic Soda (NaOH) solution. If other chemicals to be used, the requirements should be consistent with the intent of the requirements for NaOH but would need to be assessed on a case-by-case basis. ABSGUIDE FOR SOx SCRUBBER READY VESSELS .2015 3 Section 2 SOx Scrubber R
46、eady Levels The design groups of Level 2 are: i) Hull structural arrangement and reinforcement ii) SOxScrubber system configuration and vessel integration iii) Exhaust gas system iv) Washwater system v) Chemical treatment system, if applicable vi) Residue system 3.3 Plans and Data to be Submitted Th
47、e plans and documents to be submitted for each group of Level 2 are listed below. 3.3.1 Hull Structural Arrangement and Reinforcement Hull structural arrangement where the SOxscrubber unit is encompassed SOxscrubber unit foundation and attachments to the vessels structure Hull reinforcement for acco
48、mmodating the SOxscrubber unit 3.3.2 SOx Scrubber System Configuration and Vessel Integration (see 2/7 of EEA Guide) Specifications for SOxscrubber and Fuel Oil Combustion Units (FOCU) Compatibility analysis of the SOxscrubber with FOCU (see 2/7.3 of EEA Guide) General arrangement of the SOxscrubber
49、 installation and auxiliary equipment Schematic diagram for SOxscrubber system Electrical load analysis Schematic diagram and description of control and monitoring systems Emergency shutdown arrangement Description of the redundancy configuration Documentation detailing the effect on Load Line and Stability of the SOxscrubber system, in accordance with 2/7.15i) of the EEA Guide 3.3.3 Exhaust Gas System (see 2/11.1 of EEA Guide) Exhaust gas piping system including piping diagram and associated c
