H2-ICE Technology Options of the Present and the Near Future

At present, the hydrogen combustion engine has gained renewed interest from the heavy-duty internal combustion engine (ICE) industry as an enabler for fast decarbonization of well-to-wheel emissions and reinforced by the vast commitment of key stakeholders to establish a green hydrogen infrastructure. Past studies have often focused on partial...

Control Oriented Engine Model Development for Model-Based PPC Control

A model-based control approach is proposed to give proper reference for the feed-forward combustion control of Partially Pre-mixed Combustion (PPC) engines. The current study presents a simplified first principal model, which has been developed to provide a base estimation of the ignition properties. This model is used to describe the behavior...

Validation scheme for the Green Deal for Shipping, Inland Shipping and Ports (C-230) - Validation of alternative fuels, hydrogen in a combustion engine

Met de op 19 juli 2019 gepubliceerde Green Deal Zeevaart, Binnenvaart en Havens (C-230) is invulling gegeven aan de belofte in het Regeerakkoord van het Kabinet Rutte III om de verduurzaming van de zeevaart en de binnenvaart een impuls te geven. Als onderdeel binnen deze Green Deal is er vanuit de Rijksoverheid financiering beschikbaar gesteld ...

Experimental study on a retrofitted marine size spark-ignition engine running on portinjected 100% methanol

The maritime sector is currently facing a serious challenge of reducing emissions to meet the strict international and national emission regulations. In response to this challenge, the industry is initiating several research initiatives focused towards employment of alternative fuels in marine internal combustion engines. One of the promising...

CO2 Neutral Heavy-Duty Engine Concept with RCCI Combustion Using Seaweed-based Fuels

This paper focusses on the application of bioalcohols (ethanol and butanol) derived from seaweed in Heavy-Duty (HD) Compression Ignition (CI) combustion engines. Seaweed-based fuels do not claim land and are not in competition with the food chain. Currently, the application of high octane bioalcohols is limited to Spark Ignition (SI) engines....

Vervolgstappen validatie methodieken t.b.v transitie naar emissieloze scheepvaart

Green Maritime Methanol. WP2 Initiation and Benchmark analysis

The maritime sector is facing a major challenge. Whilst a globally growing global economy leads to greater demand for the transport of goods, the goals from the Paris climate agreement (UNCC 2016) and the subsequent agreement in International Maritime Organization (IMO 2018) require a 50% reduction of CO2-emissions from maritime transport by...

Reactivity Controlled Compression Ignition for clean and efficient ship propulsion

Reactivity Controlled Compression Ignition (RCCI) is commonly mentioned as a potential efficient and clean combustion concept. This study makes the first evaluation of natural gas-diesel RCCI combustion for mid-speed marine engines. A state-of-the-art dual-fuel engine with 350 mm bore diameter is the basis for numerical simulations. GT-Power is...

Towards Model-Based Control of RCCI-CDF Mode-Switching in Dual Fuel Engines

The operation of a dual fuel combustion engine using combustion mode-switching offers the benefit of higher thermal efficiency compared to single-mode operation. For various fuel combinations, the engine research community has shown that running dual fuel engines in Reactivity Controlled Compression Ignition (RCCI) mode, is a feasible way to...

Variable Valve Actuation Strategies for Better Efficiency Load Range and Thermal Management in an RCCI Engine

Understanding the role of low reactivity fuel stratification in a dual fuel RCCI engine – A simulation study

Natural gas - diesel, Reactivity Controlled Compression Ignition (RCCI) is currently one of the most promising combustion strategies for the next generation heavy-duty engines. A major issue to be addressed for this dual fuel concept to become practically applicable is its low combustion efficiency and associated high methane emissions in...

Robust Multivariable Feedback Control of Natural Gas-Diesel RCCI Combustion

Advanced combustion concepts such as Reactivity Controlled Compression Ignition (RCCI) demonstrate very high thermal efficiencies combined with ultra low NOx emissions. As RCCI is sensitive for operating conditions, closed-loop control is a crucial enabler for stable and robust combustion. The feedback design is complex due to the coupling...

Towards Control-Oriented Modeling of Natural Gas-Diesel RCCI Combustion

For natural gas (NG)-diesel RCCI, a multi-zonal, detailed chemistry modeling approach is presented. This dual fuel combustion process requires further understanding of the ignition and combustion processes to maximize thermal efficiency and minimize (partially) unburned fuel emissions. The introduction of two fuels with different physical and...