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LT Steven Lewis & LT Kevin Kuhn 16 December 2016

Use of Li-ion Batteries on Commercial Vessels. LT Steven Lewis & LT Kevin Kuhn 16 December 2016. Introduction. LT Steven Lewis USCG Marine Safety Center (MSC)

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LT Steven Lewis & LT Kevin Kuhn 16 December 2016

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  1. Use of Li-ion Batteries on Commercial Vessels LT Steven Lewis & LT Kevin Kuhn 16 December 2016

  2. Introduction LT Steven Lewis USCG Marine Safety Center (MSC) Responsible for the review and approval of plans for the design, construction, alteration and repair of U.S. and foreign flag commercial vessels. LT Kevin Kuhn USCG Office of Design and Engineering Standards (ENG): Responsible for developing regulations (CFR) and USCG policy for commercial vessels

  3. Overview Coast Guard authorities and responsibilities Coast Guard plan review considerations Future Coast Guard efforts

  4. CG authorities US Flagged commercial vessels are subject to the requirements of 46 CFR • Subchapter T – small passenger vessels 6 to 150 passengers and less than 100 GT • Subchapter K – small passenger vessels greater than 150 passengers and less than 100 GT • Subchapter H – passenger vessels greater than 100 GT • Subchapter I – Cargo vessels • Subchapter D – Tank vessels • Subchapter J – electrical engineering requirements

  5. How does the CG review novel designs? 46 CFR does not forbid the use of Li-ion batteries. However, they were not envisioned when current regulations were drafted.

  6. MSC Plan Review Experience Hybrid Vessels -First COI 2014 Electric Vessels -2015 first plan review Diesel Electric Reviewed numerous configurations including vessels using other types of batteries.

  7. Plan Review Considerations The design considerations mentioned throughout this presentation are not all inclusive, nor do they represent the only means to address the concerns of the USCG. The equivalency process evolves as the technology and research evolves.

  8. CG’s Major Concern Thermal runaway Battery Management System (BMS)

  9. MSC: Casualty Assistance • Thermal Runaway • Fire Mitigation

  10. Plan Review Considerations Current Regs 46 CFR Subchapter T and J Electrical One-Line Diagram and Load Analysis -Plan review guides for T & K Vessels -www.homeport.uscg.mil/msc Battery Installation Lithium-ion as a novel design -Case-by-Case Equivalency Determination -More stringent design requirements

  11. General Design Considerations General Arrangements – structural fire protection Prevention and mitigation of thermal runaway Management of the atmosphere in the Li-ion battery compartment Vital System Automation IMPORTANT: 46 CFR 188.220(b) requires vessels using electric propulsion to submit: -Qualitative Failure Analysis (QFA) -Design Verification Test Procedure (DVTP) -Periodic Safety Test Procedure (PSTP). Refer to Marine Technical Note (MTN) 02-11 for guidance. homeport.uscg.mil/msc

  12. Additional Design Considerations Maintenance Plan and Operations Manual Battery Modules Battery Management System (BMS) Ventilation Fire Detection & Suppression Battery Compartment Power Redundancy for All-Electric Vessels

  13. Current and future CG efforts

  14. USCG Lithium-ion POC LT Steven Lewis (MSC) Email: Steven.A.Lewis@uscg.mil Phone: 202-795-6775 LT Kevin Kuhn (CG-ENG) Email: Kevin.X.Kuhn@uscg.mil Phone: 202-372-1372

  15. Questions & Answers Teamwork · Excellence · Innovation · People

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