Predictive simulation of single cylinder n-butanol HCCI engine

Roslan, Muhammad Faizullizam; Veza, Ibham; Said, Mohd Farid Muhamad

doi:10.31224/osf.io/y53bn

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…Although its a relatively new combustion concept, CAI and HCCI have been investigated since the 1960s [16], [17]. Stringent emissions levied in the mid-1990s have triggered renewed interest in CAI and HCCI combustion.…”

Section: Introductionmentioning

confidence: 99%

Strategies to achieve controlled auto-ignition (CAI) combustion: A review

Veza

Setiawan²,

Firman³

et al. 2022

Mech. Eng. for Soc. and Ind.

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Conventional gasoline engines suffer from low performance and NOx emissions. Controlled auto-ignition (CAI), sometimes referred to as homogeneous charge compression ignition (HCCI), is a promising concept to solve such problems. CAI has the potential to improve spark ignition (SI) engine fuel economy while at the same time solving the trade-off of NOx-soot emissions found in compression ignition (CI) engines. The CAI engine can reach a fuel economy comparable to that of a conventional diesel engine with ultra-low NOx and negligible soot emissions. However, controlling auto-ignition remains the biggest difficulty that hinders the implementation of CAI as a commercial engine. Research towards a cleaner and more efficient engine is driven by the progressively stringent emission regulation imposed worldwide. Therefore, the CAI was developed to meet the emissions target while maintaining engine performance. CAI works on the principle of lean mixture and auto-ignition. To obtain CAI combustion, the temperatures in the cylinder must be sufficient to initiate auto-ignition. Without the use of a spark plug or injector, the CAI suffers from a direct control mechanism to start the combustion. The most practical approach to controlling the initiation of auto-ignition in CAI is diluting the intake charge by either trapping the residual gas or recirculating the exhaust gas. Both approaches enable the engine to achieve CAI combustion without requiring significant modifications to control the onset of CAI combustion phase.

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Section: Introductionmentioning

confidence: 99%

Strategies to achieve controlled auto-ignition (CAI) combustion: A review

Veza

Setiawan²,

Firman³

et al. 2022

Mech. Eng. for Soc. and Ind.

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show abstract

“…There are some of results, which had been approved [31,32]. Using B25 with 50 ppm alumina nano-material, engine performance increased by 4.8 %, BSFC was decreased by 8.5 % and HC ,CO and smoke concentrations were diminished by 36 %, 20 % and 44 % , respectively [33] .…”

Section: Introductionmentioning

confidence: 99%

Effect of CuO Nanoparticles on Performance and Emissions Behaviors of CI Engine Fueled with Biodiesel-Diesel Fuel Blends

Elkelawy

elhamid

Bastawissi

et al. 2022

Journal of Engineering Research

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Recently the world has a very important need for replacement fossil fuel with renewable sources of energy. Greenhouse effect is considered one of bad effects of fossil fuels, which causes increase of global temperature. Biodiesel is one of fossil fuel alternatives, which can be produced from many organic sources. Scientists are searching for adding nanomaterials to fueling system, which can modify fuel characteristic in compression champers. In this study diesel fuel will be replaced with blends of diesel and biodiesel produced from waste cooking oil (WCO) is created using a catalytic transesterification reaction (CTR). With the addition of a low concentration of alcohol over the period of an hour at a reaction temperature of 65 °C, (CTR) converts (WCO) to methyl esters. Blends consisting of (40 % diesel, 60 % biodiesel and CuO nano-martial with different concentration) will be prepared for fueling direct injection engine four-stroke. The engine will be run at 1400 rpm with natural aspiration under various loads. Using blends of (pure diesel, B40 [consist of 60 % biodiesel and 40 % diesel], 50b40 [consist of 60 % biodiesel, 40 % diesel and 50 mg CuO], 100B40 [consist of 60 % biodiesel, 40 % diesel and 100 mg CuO], 150 [consist of 60 % biodiesel, 40 % diesel and 150 mg CuO] and pure diesel). On engine performance and emissions, the impact of using copper oxide has been studied. The results of the experiment demonstrate that diesel engines can run on various mixtures of fuel, biodiesel, and CuO nano-material under the same operating conditions. The obtained data indicates that a 10% increase in brake thermal efficiency was noted, decrease in exhaust temperature with 11.6 % and decrease in brake specific fuel consumption with 6.66 %.

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“…The internal combustion engine was invented in the late nineteenth century when Nicolaus Otto (1876) and Rudolf Diesel (1882) first invented the spark-ignition (SI) and compression-ignition (CI) engine. Today, new technologies such as fuel injection system [1], HCCI engine [2], [3] and electric vehicles [4] continue to develop significantly.…”

Section: Introductionmentioning

confidence: 99%

Acetone-Butanol-Ethanol as the Next Green Biofuel - A Review

Rahaju

Veza²,

Tamaldin³

et al. 2022

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The development of diesel engines faces challenging targets to satisfy stringent emissions regulation. To address this issue, the use of alcohol biofuels such as methanol and ethanol has attracted numerous attention due to their physicochemical properties and the possibility to be produced from renewable sources and agricultural waste material. Compared to ethanol, longer carbon alcohol such as butanol has higher energy density and lower latent heat, hygroscopicity, aggressivity, and toxicity. It can also be produced from biomass. Yet, despite its noticeable advantages, the use of butanol in the internal combustion engine is hindered by its low production efficiency. If Acetone-Butanol-Ethanol (ABE) is further distilled and purified, pure butanol and ethanol can be acquired, but this involves an energy-intensive process, thus increasing the production cost of butanol. To solve this problem, the direct use of ABE as a biofuel is considered a promising strategy. The idea of using ABE directly in internal combustion engines is then proposed to solve the economic issue of high butanol production costs. A scoping literature review was performed to screen and filter previously published papers on ABE by identifying knowledge gaps instead of discussing what is already known. Therefore, repeated and almost identical studies were eliminated, thus reporting only the most significant and impactful published papers. In terms of the objective, this article aims to review the progress of ABE as a promising biofuel in regard to the engine performance, combustion, and emission characteristics. Focus is also given to ABE’s physicochemical properties. Despite their considerable importance, the fuel properties of ABE are rarely discussed. Therefore, this review article intends to analytically discuss the physicochemical properties of ABE in terms of their calorific value, density, kinematic viscosity, and distillation. In general, it is concluded that engine emissions such as NOx and Particulate Matter (PM) could be reduced considerably with the use of ABE. Yet, the BSFC was found to increase due to the relatively lower calorific value and density of ABE blends as opposed to gasoline or diesel fuel, thereby increasing its fuel consumption. In terms of ABE’s fuel properties, in general, ABE can be used due to its satisfying physicochemical properties. However, it should be noted that the ABE-gasoline/diesel blends are greatly influenced by each of its component ratios (acetone, butanol, ethanol).

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Predictive simulation of single cylinder n-butanol HCCI engine

Cited by 5 publications

References 14 publications

Strategies to achieve controlled auto-ignition (CAI) combustion: A review

Strategies to achieve controlled auto-ignition (CAI) combustion: A review

Effect of CuO Nanoparticles on Performance and Emissions Behaviors of CI Engine Fueled with Biodiesel-Diesel Fuel Blends

Acetone-Butanol-Ethanol as the Next Green Biofuel - A Review

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