Effect of fuel preheating with blended fuels and exhaust gas recirculation on diesel engine operating parameters

Mekonen, Menelik Walle; Sahoo, Niranjan

doi:10.1016/j.ref.2018.07.003

Cited by 28 publications

(5 citation statements)

References 27 publications

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“…The plot shown here is the representation of atoms present within or exiting the chamber, which influences the mass flow rate of air entering the engine . The density values of air were observed at the output of the chamber while applying loads of 550, 800, and 900 K to the glow plugs.…”

Section: Resultsmentioning

confidence: 99%

“…The plot shown here is the representation of atoms present within or exiting the chamber, which influences the mass flow rate of air entering the engine. 31 The density values of air were observed at the output of the chamber while applying loads of 550, 800, and 900 K to the glow plugs. The temperature graphs indicate the corresponding temperature values obtained at the output of the chamber under these load conditions.…”

Section: Resultsmentioning

confidence: 99%

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Experimental Study on Sustainability Involving the Pugh Matrix on Emission Values of High-Temperature Air in the Premixed Charged Compression Ignition Engine

Joshua,

Kandasamy,

Venkatesan

et al. 2023

ACS Omega

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The main aim of the study was to reduce carbon emissions in the atmosphere using a novel Andropogon narudus (AN) biofuel using higher air temperatures and reducing the consumption of conventional fossil fuel (diesel). The use of a heat exchange chamber within the air intake manifold is a popular method to reduce hydrocarbon (HC) and carbon monoxide (CO) emissions during cold starts. A premixed charged compression ignition engine in the dual-fuel mode was used in this study with raw diesel, raw AN oil, AN70+D30, AN80+D20, AN80+D20 (35 °C), AN80+D20 (40 °C), and AN80+D20 (45 °C). A chamber was designed and analyzed to measure the exit temperature and density change and to determine the reduction in volumetric efficiency of the engine, using Ansys Fluent software. A sustainability assessment study was performed to understand the feasibility of the fuel and the design using the Pugh Matrix. The fuel AN80+D20 with an air temperature of 45 °C was found to be superior to all other fuels in terms of brake thermal efficiency, reaching at 32.1%. D100 used the least amount of energy, whereas AN80+D20 used the most. Engine HC emission was at the lowest (45.01 ppm) for AN80+D20 fuel at 45 °C air input and reached the highest (50 ppm) for AN100 fuel. With an air temperature of 45 °C, CO emission was at its lowest for AN80+D20 gasoline (0.018%) and was at its highest for AN100 (0.072%). Nitrogen oxide emissions were the highest for AN80+D20 fuel with an air temperature of 45 °C, with an air concentration of 1254 ppm, whereas they were the lowest for AN100 (900 ppm). CO 2 values were reduced, with D100 showing the lowest levels and AN100 showing the highest. The smoke emission was minimum for AN80+D20 fuel at 45 °C, with a smoke number of 15 compared to 33 for D100 fuel. As per the Pugh Matrix assessment, AN80+D20 with 35 °C air temperature had higher scores compared to all of the other fuel mixtures.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Experimental Study on Sustainability Involving the Pugh Matrix on Emission Values of High-Temperature Air in the Premixed Charged Compression Ignition Engine

Joshua,

Kandasamy,

Venkatesan

et al. 2023

ACS Omega

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“…Mekonen and Sahoo [36] observed higher BTE and exhaust gas temperature by preheating the biodiesel blends in a DF engine which helped in earlier burning caused by higher cetane number and high oxygen content of biodiesel.…”

Section: Literature Reviewmentioning

confidence: 99%

Performance and engine exhaust study of a CI engine in dual fuel mode using diethyl ether as cetane enhancer additive

2023

IJATEE

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In this experiment, emission and performance analysis were conducted on a compression ignition (CI) engine operating with a blend of Karanja methyl ester and diesel as the pilot fuel. Diethyl ether (DEE) was used as a cetane enhancer to improve the brake thermal efficiency (BTE) of dual fuel (DF) engines. Producer gas (PG) was utilized to maximize diesel savings. The results show that BTE decreased in DF runs while using PG. However, when a 5% volume fraction of DEE was mixed with the selected pilot fuels, it led to an improvement in BTE during the DF run. The emission curves also reveal the positive impact of DEE on DF engine performance. Further investigation showed that a 10% volume fraction of Karanja methyl ester (B10) blended with diesel, when additionally mixed with 5% volume of DEE (referred to as 5DEE), achieved a BTE of 26% during DF mode operation with PG. In comparison, B10+PG, Diesel+PG, andDiesel+5DEE+PG reached BTEs of 23.75%, 24.2%, and 27.2%, respectively. Among these combinations, B10+5DEE+PG showed the highest reduction in smoke opacity (51.3%) and nitric oxide (54%) emissions during DF operation compared to the base results. Additionally, B10+5DEE+PG exhibited the lowest increase in hydrocarbon emissions (35.4%) compared to other DF operation combinations.

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“…The formation of emissions such as unburned hydrocarbon and carbon monoxide were reduced, but oxides of nitrogen increased by 17.5%. This increased in Nox was reduced by 68.8% by inclusion of EGR [96]. The heat carried by the exhaust gases was utilized to pre-heat the biodiesel made by palm oil.…”

Section: Pre-heating CI Biodiesel Enginesmentioning

confidence: 99%

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Khan

2020

Energies

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The ever-increasing demand for transport is sustained by internal combustion (IC) engines. The demand for transport energy is large and continuously increasing across the globe. Though there are few alternative options emerging that may eliminate the IC engine, they are in a developing stage, meaning the burden of transportation has to be borne by IC engines until at least the near future. Hence, IC engines continue to be the prime mechanism to sustain transportation in general. However, the scarcity of fossil fuels and its rising prices have forced nations to look for alternate fuels. Biodiesel has been emerged as the replacement of diesel as fuel for diesel engines. The use of biodiesel in the existing diesel engine is not that efficient when it is compared with diesel run engine. Therefore, the biodiesel engine must be suitably improved in its design and developments pertaining to the intake manifold, fuel injection system, combustion chamber and exhaust manifold to get the maximum power output, improved brake thermal efficiency with reduced fuel consumption and exhaust emissions that are compatible with international standards. This paper reviews the efforts put by different researchers in modifying the engine components and systems to develop a diesel engine run on biodiesel for better performance, progressive combustion and improved emissions.

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Effect of fuel preheating with blended fuels and exhaust gas recirculation on diesel engine operating parameters

Cited by 28 publications

References 27 publications

Experimental Study on Sustainability Involving the Pugh Matrix on Emission Values of High-Temperature Air in the Premixed Charged Compression Ignition Engine

Experimental Study on Sustainability Involving the Pugh Matrix on Emission Values of High-Temperature Air in the Premixed Charged Compression Ignition Engine

Performance and engine exhaust study of a CI engine in dual fuel mode using diethyl ether as cetane enhancer additive

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

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