EU Stage V already presents you with enough technical challenges
The new EU Stage V legislation has quite an impact on inland shipping. But what do these new requirements mean for you as a shipowner or builder? And how can you best anticipate them? Caterpillar introduces a certified Stage V solution. This way, you can be sure that you meet the requirements and benefit from Caterpillar's quality. The AutoCAD models are now available for free download, allowing you to get started quickly and easily! Watch the video below for more information.
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What is EU Stage V?
The formal name is NRMM Regulation EU 2016/1628, but in the inland shipping industry, we refer to it as EU Stage V, or simply Stage V. This legislation stipulates that from January 1, 2022, newly built ships may only be equipped with a Stage V certified diesel engine (above 19 kW). For re-engining existing inland vessels, the new legislation applies from September 1, 2022.
What is the goal?
The aim of these new emission requirements is to reduce harmful emissions from inland shipping. The regulation sets limits for the emissions of carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx). Additionally, it imposes standards not only for the maximum weight of particulate matter (PM10) but also for the number of particulate matter particles (PN-Particulate Number).
But we just had USA EPA Tier 4, right?
Correct. The biggest difference between EPA Tier 4 and the EU Stage V emission requirements is that under EU Stage V, soot particles are also counted. Not only is the weight of the soot emissions measured, but the number of soot particles is also counted. Many small soot particles can weigh less than large soot particles, yet those small particles are much more harmful to public health as they penetrate deeper into the lungs.
What does this mean for my engines and ship?
For Caterpillar EPA Tier 4 engines, it is not necessary to install a particulate filter; for EU Stage V engines, it is. Generally, a Stage V engine will have a larger volume than a comparable Tier 4 engine.
Can’t I just install an after-treatment system on my existing engine?
That's true. A Caterpillar after-treatment system can be placed on or behind an existing Cat engine, but it can never achieve a Stage V certification or be designated as a Stage V certified engine. However, it can meet the emission requirements of Stage V. This is known as Stage V compliant. The emission label system coming into effect in 2022 will value this solution nearly equal to Stage V certified engines. However, it does require periodic emission measurements.
How does Caterpillar make its engines Stage V certified?
A EU Stage V certified Caterpillar marine diesel engine is an original Caterpillar engine equipped with an original Caterpillar after-treatment system. These two are always inseparably connected and cannot be replaced by alternatives.
How it works? The integrated Caterpillar after-treatment system first passes the exhaust gases through a DPF (particulate filter) to filter out carcinogenic substances. Then the gases pass through the SCR system (NOx) for nitrogen reduction. The after-treatment system is controlled by the engine computer, resulting in optimal cooperation between the engine and the after-treatment. This guarantees the lowest possible combination of fuel and urea consumption with optimal (thus low) emissions. Additionally, by deactivating cylinders at low engine loads, the exhaust temperatures remain high. This means that the passive particulate filter does not need to be cleaned with burning diesel fuel, which contributes to low fuel consumption.
“Caterpillar has all EU Stage V engines to meet the total needs of inland shipping! Our engines can be used for propulsion, generator sets, and auxiliary power. Pon Power supplies these across the entire power range from 60 to 1350 kW.”
MORE INFORMATION
Would you like to know more about Stage V and what this high-quality solution can mean for your sustainability goals? Contact your account manager or fill out the form below.
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