Engine Adaptation from Diesel to  H2 HP-EGR Lean Combustion Concept

Koch, Daniel; Ebert, Thomas; Sousa, Álvaro Francisco Lopes de

doi:10.1007/s38313-020-0223-9

Cited by 8 publications

(4 citation statements)

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“…The fundamental difference in between is the principle applied, as shown in Figure 1. (Koch et al, 2020) and H2-FC (Adolf et al, 2017) H2-ICE vehicles are based on a conventional ICE as known from diesel or gasoline vehicles, means four stroke cycle including 1 st intake, 2 nd compression, 3 rd power and 4 th exhaust. The result generated by the hydrogen combustion process is mechanical work (Klell et al, 2018).…”

Section: Hydrogen Combustion Technology Versus Counterpartsmentioning

confidence: 99%

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Application of a Holistic Approach of Hydrogen Internal Combustion Engine (Hice) Busses

Salehi

2021

Proc. Des. Soc.

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Hydrogen is a promising fuel to fulfil climate goals and future legislation requirements due to its carbon-free property. Especially hydrogen fueled buses and heavy-duty vehicles (HDVs) strongly move into the foreground. In contrast to the hydrogen-based fuel cell technology, which is already in commercial use, vehicles with hydrogen internal combustion engines (H2-ICE) are also a currently pursued field of research, representing a potentially holistic carbon-free drive train. Real applications of H2-ICE vehicles are currently not known but can be expected, since their suitability is put to test in a few insolated projects at this time. This paper provides a literature survey to reflect the current state of H2-ICEs focused on city buses. An extended view to HDVs and fuel cell technology allows to recognize trends in hydrogen transport sector, to identify further research potential and to derive useful conclusion. In addition, within this paper we apply green MAGIC as a holistic approach and discuss Well-to-Tank green hydrogen supply in relation to a H2-ICE city bus. Building on that, we introduce the upcoming Hydrogen-bus project, where tests of H2-ICE buses in real driving mode are foreseen to investigate Tank-to-Wheel.

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Section: Hydrogen Combustion Technology Versus Counterpartsmentioning

confidence: 99%

“…On the other hand, the widespread market penetration of fuel cell technology is being inhibited particularly because of their above-average costs, mostly assessed as TCOs (Gnann et al, 2017) whereas H2-ICEs achieve advantages (Eichlseder et al, 2020). ; (Koch et al, 2020) 2 ; (Wietschel et al, 2016) 3…”

Section: Hydrogen Combustion Technology Versus Counterpartsmentioning

confidence: 99%

Application of a Holistic Approach of Hydrogen Internal Combustion Engine (Hice) Busses

Salehi

2021

Proc. Des. Soc.

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“…For example, in an interview for the H2-view site, with a topic related to the decarbonization of the transportation sector, the R&D department of BMW researches affirm that the EU directive classifying the hydrogen combustion engine as a 'zero-emission' propulsion system in 2019 [8]. According to Koch [9], Hydrogen can be used to fuel the internal combustion engines used for heavy-duty vehicles due to a zero-emission level advantage. Thus, classic engines can be converted for Hydrogen fueling and the EGR and lean-combustion strategy can be applied at Hydrogen use [9].…”

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 99%

“…According to Koch [9], Hydrogen can be used to fuel the internal combustion engines used for heavy-duty vehicles due to a zero-emission level advantage. Thus, classic engines can be converted for Hydrogen fueling and the EGR and lean-combustion strategy can be applied at Hydrogen use [9].…”

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 99%

The Influence of Hydrogen on Vaporization, Mixture Formation and Combustion of Diesel Fuel at an Automotive Diesel Engine

et al. 2020

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Hydrogen can be a viable alternative fuel for modern diesel engines, offering benefits on efficiency and performance improvement. The paper analyses the results of a thermodynamic model developed by authors in order to study the influence of Hydrogen addition on a process like vaporization, mixture forming, and combustion at the level of diesel fuel droplets. The bi-zonal model is applied for a dual-fueled diesel engine K9K type designed by Renault for automotives. For the engine operating regime of 2000 rpm speed and 55% engine load, the diesel fuel is partially substituted by Hydrogen in energetic percents of 6.76%, 13.39%, and 20.97%, the engine power being maintained at the same level comparative to classic fueling. At Hydrogen addition, the diesel fuel jets atomization and diesel fuel droplets vaporization are accelerated, the speed of formation of the mixture being increased. Comparative to classic fueling, the use of Hydrogen leads to diesel droplets combustion intensification, with a shortened autoignition delay, reduction of combustion duration, and increase of flame radius.

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