MARINE & SHIPPING
Marine & Shipping Emissions Monitoring & Analysis - Ship Air Pollution Monitoring
The need to demonstrate environmental responsibility is key for today’s marine and offshore industries. Fuels and exhaust gas emissions are subject to international, regional and national controls and Charterers, as well as the public, demand high standards of performance and reliability. These standards include IMO Marpol Annex VI and the EPA regulations where items such as SOx Emissions and NOx Emissions are crucial measurement parameters.
The penalties for non-compliance are potentially huge. Whilst the pace of change has created uncertainty and appears to have pushed the boundaries for some technologies, the Protea 2000 emissions monitoring system has been proven in long term service onboard ships as a robust and reliable method of confirming compliance with emissions regulations.
The Protea Solution
Protea 2000's emissions monitoring system is approved for the analysis of exhaust gases from the engines and boilers of ships and offshore rigs. Robust and with proven reliability, up to six gases can be measured including SO2, CO2 and NOx.
The system comprises up to 6 exhaust mounted analysers, each with automatic verification facilities. Emissions data from the entire system is securely managed and displayed at a dedicated panel PC, with outputs to networks, control systems, and reporting facilities.
The advanced Protea 2000 analyser uses an in-situ (inside the exhaust) sample cell, thus avoiding the need to extract gas. Importantly, this avoids the use of costly, high maintenance sample handling systems and enables analysis of an unmodified, truly representative gas sample.
Exhaust gases from the combustion of residual and distillate fuels can be analysed so that compliance can be confirmed in port, in Emissions Control Areas and in international waters. The Protea 2000 design includes highly effective sintered filters that prevent the ingress of particulate matter into the sample cell and a heater to prevent condensation and deposits where the exhaust is below its dew point. Construction materials are ideally suited to the marine environment.
In recent years, new regulations have been introduced governing emissions from ships. With the International Maritime Organization (IMO) adopting Annex VI of MARPOL designed to limit sulphur oxides (SOx), nitrous oxides (NOx) and particulate matter emissions, as well as introducing emission control areas (ECAs) to reduce emissions of those air pollutants further in designated sea areas, ship owners/operators can face hefty fines for failing to meet these new requirements on the “polluter pays” principle.
Ships emit more particulate matter (PM) per unit of fuel consumed than other fossil fuel combustion sources due to the quality of fuel used. Stringent rules against ships exhausting black smoke within sight of shore – notably in regions such as Alaska and Hawaii, where cruise ships and tankers are particularly vulnerable – have been introduced and are backed up by ‘spotters’ employed by authorities to report any infringements. Penalties extend from warnings and fines to future banishment of guilty tonnage from the area.
Therefore, effective smoke monitoring is becoming increasingly important and installing a smoke opacity monitor is one way of providing a warning if the combustion of a boiler, incinerator or engine is poorly adjusted thus leading to the emission of black smoke. This will also help to protect ship-owners against heavy fines as well as potential damage to the ship’s and company’s image.
DynOptic smoke monitors measure the density of the smoke using the light transmission technique to measure the visible opacity of exhaust gas in a duct, stack or flue, in which a high intensity light beam is projected across the stack. Any smoke or particulate present will attenuate the transmitted light and the decrease in light intensity, due to absorption and scattering, is measured. The higher the level of smoke present, the more light lost and therefore, the greater the opacity.
DynOptic currently offers three different smoke monitors for measuring marine emissions.
For further information about any of our products please call or e-mail and a member of our team will be happy to help.