Synchronization and identification of ship shaft power and speed for energy efficiency design index verification
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The maritime sector is advancing with dedicated endeavor to reduce greenhouse gas in addressing issueswith regards to global warming. Since 01 January 2013, the International Maritime Organization (IMO)regulation mandatory requirement for Energy Efficiency Design Index (EEDI) has been in place and should besatisfied by newly-built ships of more than 400 gross tonnage and the Ship Energy Efficiency ManagementPlan (SEEMP) for all ships type. Therefore, compliance to this necessitates planning during the design stagewhereas verification can be carried –out through an acceptable method during sea trial. The MEPC-approved2013 guidance, ISO 15016 and ISO 19019 on EEDI serves the purpose for calculation and verification of attainedEEDI value. Individual ships EEDI value should be lower than the required value set by theseregulations. The key factors for EEDI verification are power and speed assessment and their synchronization. The shaft power can be measured by telemeter system using strain gage during sea trial. However, calibrationof shaft power onboard condition is complicated. Hence, it relies only on proficient technology that operateswithin the permitted ISO allowance. On the other hand, the ship speed can be measured and calibrated bydifferential ground positioning system (DGPS). An actual test on a newly-built vessel was carried out to assessthe correlation of power and speed. The Energy-efficiency Design Index or Operational IndicatorMonitoring System (EDiMS) software developed by the Dynamics Laboratory-Mokpo Maritime University(DL-MMU) and Green Marine Equipment RIS Center (GMERC) of Mokpo Maritime University was utilizedfor this investigation. In addition, the software can continuously monitor air emission and is a useful tool forinventory and ship energy management plan. This paper introduces the synchronization and identification methodbetween shaft power and ship speed for EEDI verification in accordance with the ISO guidance
Abstract
The maritime sector is advancing with dedicated endeavor to reduce greenhouse gas in addressing issueswith regards to global warming. Since 01 January 2013, the International Maritime Organization (IMO)regulation mandatory requirement for Energy Efficiency Design Index (EEDI) has been in place and should besatisfied by newly-built ships of more than 400 gross tonnage and the Ship Energy Efficiency ManagementPlan (SEEMP) for all ships type. Therefore, compliance to this necessitates planning during the design stagewhereas verification can be carried –out through an acceptable method during sea trial. The MEPC-approved2013 guidance, ISO 15016 and ISO 19019 on EEDI serves the purpose for calculation and verification of attainedEEDI value. Individual ships EEDI value should be lower than the required value set by theseregulations. The key factors for EEDI verification are power and speed assessment and their synchronization. The shaft power can be measured by telemeter system using strain gage during sea trial. However, calibrationof shaft power onboard condition is complicated. Hence, it relies only on proficient technology that operateswithin the permitted ISO allowance. On the other hand, the ship speed can be measured and calibrated bydifferential ground positioning system (DGPS). An actual test on a newly-built vessel was carried out to assessthe correlation of power and speed. The Energy-efficiency Design Index or Operational IndicatorMonitoring System (EDiMS) software developed by the Dynamics Laboratory-Mokpo Maritime University(DL-MMU) and Green Marine Equipment RIS Center (GMERC) of Mokpo Maritime University was utilizedfor this investigation. In addition, the software can continuously monitor air emission and is a useful tool forinventory and ship energy management plan. This paper introduces the synchronization and identification methodbetween shaft power and ship speed for EEDI verification in accordance with the ISO guidance
참고문헌 (16)
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