Earth:Oil discharge monitoring equipment
Oil discharge monitoring equipment (ODME) is based on a measurement of oil content in the ballast and slop water, to measure conformance with regulations.[1] The apparatus is equipped with a GPS, data recording functionality, an oil content meter and a flow meter.[2] By use of data interpretation, a computing unit will be able to allow the discharge to continue or it will stop it using a valve outside the deck.[2]
Operating principle
A sample point on the discharge line allows for the analyzer to determine the oil content of the ballast now and slop water in PPM.[2] The analyzer is self-maintaining by periodical cleansings with fresh water, and therefore requires a minimum of active maintenance from the crew.[2] The results of the analyzer are sent to a computer, which determines whether the oil content values are to result in overboard discharge or not.[2] The valves that direct the ballast water either over board or to slop tank are controlled by the integrated computer, and a GPS signal further automates the process by including special areas and completes the required input for the Oil Record Book.[2]
All oil tankers with a gross tonnage of larger than 150 must have efficient Oil Discharge Monitoring Equipment on board.[3][4]
The oily discharge is sent out to sea through a pump.[5] The oily mixture has to pass through a series of sensors to determine whether it is acceptable to be sent to the discharge pipe.[6]
Based on regulations, the following values must be recorded by the system:[3]
- Date and time of the discharge
- Location of the ship
- Oil content of the discharge in ppm
- Total quantity discharged
- Discharge rate
All records of Oil Detection Monitoring Equipment must be stored on board ships for no less than 3 years.[3]
Oil Discharge Monitoring systems today consist of a computing unit that is installed in the cargo control room. The computer unit control and receives data from other ODME components.[7]
ODME systems also have an analyzing unit that contains the Oil content meter, a fresh water valve for cleaning purposes, and a pressure transmitter that monitors the sample flow through the measuring cell.[7]
See also
- Marpol 73/78
- Marpol Annex I
- Oily water separators
- Oily water separator (marine)
- Oil Content Meter
- Magic Pipe
- IMO
- Port Reception Facilities
References
- ↑ "VAFInstruments | Home of VAF Instruments | Products | Oil Discharge Monitoring Equipment". https://www.vaf.nl/products/overview/oil-discharge-monitoring-equipment/. Retrieved 2015-07-23.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "ODME Oil Discharge Monitoring Systems and Equipment". http://www.insatechmarine.com/solutions/emissions/odme. Retrieved 2015-06-04.
- ↑ 3.0 3.1 3.2 "What is Oil Discharge Monitoring and Control System (ODMCS) on Ship?". 2011-02-18. http://www.marineinsight.com/misc/maritime-law/what-is-oil-discharge-monitoring-and-control-system-odmcs-on-ship/. Retrieved 2015-06-09.
- ↑ "Regulation 31 - Oil discharge monitoring and control system". http://www.marpoltraining.com/MMSKOREAN/MARPOL/Annex_I/r31.htm. Retrieved 2015-07-28.
- ↑ "Oil in water, oil water analyzer, oil/water monitors by Arjay Engineering". http://www.arjayeng.com/arjayeng_oil_and_water.htm. Retrieved 2015-07-24.
- ↑ Germany, KSB AG, Frankenthal. "ODME S-3000". http://www.ksb.com/ksb-kr-en/Products_and_Services/Marine/Marine_System_ch/Oil_Discharge_Monitoring_Equipment/1042132/ODME_art.html. Retrieved 2015-07-23.
- ↑ 7.0 7.1 www.merreklam.se, Merreklam. "ODME 2005 - Oil Discharge Monitor | Monitoring and control systems | Products | JOWA AB". http://www.jowa.se/page/products/monitoring-and-control-systems/odme-2005---oil-discharge-monitor. Retrieved 2015-07-23.
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