Study of the auto-ignition phenomenon of PRFs under HCCI conditions in a RCEM by means of spectroscopy

Desantes, J.M.; García-Oliver, José M; Vera-Tudela, W.; Pintor, Dario Lopez; Schneider, Bruno; Boulouchos, Konstantinous

doi:10.1016/j.apenergy.2016.06.134

Cited by 15 publications

(7 citation statements)

References 26 publications

(29 reference statements)

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“…In addition, due to the increased displacement capacity, HCCI combustion improves brake thermal efficiency by 50%, while emitting less smoke than conventional diesel combustion. The HCCI engine's compression ratio and premixed fuel combustion has improved the brake thermal efficiency of engine and lower the smoke emissions as noticed by Desantes et al [37]. The multi-zone auto ignition and spontaneous combustion of the entire mixture is promoted by the homogenous mixture and uniform equivalence ratio in the cylinder.…”

Section: Homogeneous Charge Compression Ignition (Hcci)mentioning

confidence: 93%

Zero Emission Hydrogen Fuelled Fuel Cell Vehicle and Advanced Strategy on Internal Combustion Engine: A Review

Dharmalingam¹,

Ramireddy²,

Annamalai³

et al. 2022

Diesel Engines and Biodiesel Engines Technologies

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Global energy consumption has gradually increased as a result of population growth, industrialization, economic development, and rising living standards. Furthermore, as global warming and pollution worsen, the development of renewable energy sources is becoming more essential. Hydrogen is one of the most promising clean and sustainable energy carriers because it emits only water as a byproduct without carbon emission and has the highest energy efficiency. Hydrogen can be produced from a variety of raw resources, including water and biomass. Water electrolysis is one of many hydrogen production technologies that is highly recommended due to its eco-friendliness, high hydrogen generation rate, and high purity. However, in terms of long-term viability and environmental effect, Polymer Electrolyte Membrane water electrolysis has been identified as a potential approach for producing high-purity, high-efficiency hydrogen from renewable energy sources. Furthermore, the hydrogen (H2) and oxygen (O2) produced are directly employed in fuel cells and other industrial uses. As a result, an attempt has been made in this work to investigate hydrogen synthesis and utilization in fuel cell vehicles. Low-temperature combustion technology has recently been applied in engine technology to reduce smoke and NOx emissions at the same time. The advantages and limitations of homogeneous charge compression ignition, partially premixed charge compression ignition, premixed charge compression ignition, and reactivity regulated compression ignition are described separately in low-temperature combustion strategy.

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Section: Homogeneous Charge Compression Ignition (Hcci)mentioning

confidence: 93%

Zero Emission Hydrogen Fuelled Fuel Cell Vehicle and Advanced Strategy on Internal Combustion Engine: A Review

Dharmalingam¹,

Ramireddy²,

Annamalai³

et al. 2022

Diesel Engines and Biodiesel Engines Technologies

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“…When DI timing = 40 • CA, water (AMF = 0) or aqueous solution of ammonia (AMF = 10% and 20%) injection occurs after combustion phase and most of the curves overlap in different AMF in Figures 6c, 7c and 8c, which indicates very little effect in combustion using inner SNCR. OH has been identified as a marker of combustion occurrence in many literature studies [48][49][50][51]. H 2 O 2 and HO 2 also play an important role in high temperature reaction process through #1~#6, which are highly susceptible to water addition, especially causing temperature drop and reaction delay.…”

Section: Major Intermediates Combustion Speciesmentioning

confidence: 99%

Inner Selective Non-Catalytic Reduction Strategy for Nitrogen Oxides Abatement: Investigation of Ammonia Aqueous Solution Direct Injection with an SI Engine Model

et al. 2019

Energies

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This study contributes to a method based on an aqueous solution of ammonia direct injection for NO x emissions control from internal combustion engines. Many previously published studies about deNO x technology are based on selective catalytic reduction (SCR), but only few deal with inner selective non-catalytic reduction (inner SNCR) technology, which is an intensive improvement of selective non-catalytic reduction (SNCR) applied in the in-cylinder purification procedure. Before numerical calculations were carried out, the computational fluid dynamic (CFD) simulation model was validated with steady-state experimental results. The main results revealed that with the increasing concentration of aqueous solution of ammonia, nitrogen oxides gradually decrease, and the largest decline of NO x is 65.1% with little loss of cylinder peak pressure. Unburned hydrocarbon (UHC) and carbon monoxide (CO) may increase using inner SNCR, and soot emissions show a decreased tendency. However, there is little change when ammonia content varies. Ulteriorly, refining the direct injection phase is of great help to inner SNCR technology to enhance the reduction of NO x and reduce NH 3 oxidation and NH 3 slipping.Energies 2019, 12, 2742 2 of 18 water emulsion diesel as compared with diesel fuel. Adnan et al. [10] conducted an experimental investigation on the optimum water injection timing for power augmentation and emission control of a hydrogen fueled compression ignition (HFCI) engine. The results show that a longer injection duration introduces more water droplets into the cylinder, reducing the in-cylinder charge temperature, which leads to NO x reduction. Although, the amount of water by injecting or emulsifying requires special attention. Excessive water injection may lead to decreased power performance and increased incomplete combustion [11]. Thus, the NO x emissions are limited by increasing the amount of the injected water.SCR has been widely applied in the exhaust after-treatment device of internal combustion engines (ICE). Compared with the three-way catalytic converter (TWC), SCR is not strictly restricted by the equivalence ratio [12]. Thus, the application of SCR has more rationality and scientificity in lean burn gasoline engines and diesel engines. However, the traditional SCR technology has some blemishes, such as poor durability of SCR catalyst [13], narrow temperature window for active deNO x [14], catalyst deactivation due to particulates accumulation [15], catalyst poisoning effect caused by heavy metals (Pb, Zn, and so on, and their oxides) [16], high cost, and difficult recovery by using the noble metal catalysts. The miniaturization and compactification of SCR equipment are also very important factors, which influence the automobile lightweight, especially the passenger car [17]. These limitations led researchers to begin to focus on selective non-catalytic reduction (SNCR), which is another technical route to reduce NO x emissions. As a result of getting rid of the reliance on catalysts, engines with SNCR tec...

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“…An RCEM is an experimental facility usually used in autoignition studies due to its capability to reproduce the engine compression and expansion strokes under fully controlled initial and boundary conditions [19]. The experimental results used in this investigation have been obtained by Desantes et al [20] in a previous work, while the raw results have been re-processed in order to obtain data about the autoignition propagation.…”

Section: Rcemmentioning

confidence: 99%

A phenomenological explanation of the autoignition propagation under HCCI conditions

Desantes

López

García-Oliver

et al. 2017

Fuel

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A phenomenological explanation about the autoignition propagation under HCCI conditions is developed in this paper. To do so, diffusive effects from the burned zones to the fresh mixture, pressure waves based effects and expansion effects caused by combustion are taken into account. Additionally, different Damköhler numbers have been defined and evaluated in order to characterize the phenomenon and quantify the relevance of each effect.

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Study of the auto-ignition phenomenon of PRFs under HCCI conditions in a RCEM by means of spectroscopy

Cited by 15 publications

References 26 publications

Zero Emission Hydrogen Fuelled Fuel Cell Vehicle and Advanced Strategy on Internal Combustion Engine: A Review

Zero Emission Hydrogen Fuelled Fuel Cell Vehicle and Advanced Strategy on Internal Combustion Engine: A Review

Inner Selective Non-Catalytic Reduction Strategy for Nitrogen Oxides Abatement: Investigation of Ammonia Aqueous Solution Direct Injection with an SI Engine Model

A phenomenological explanation of the autoignition propagation under HCCI conditions

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