Journal ArticleDOI
Time-Resolved Endoscopic Evaluation of Spatial Temperature and Soot Distribution in a Butanol-Diesel Blend Fueled Direct Injection Compression Ignition Engine
TLDR
In this article, in situ spatial soot and temperature distributions were investigated experimentally for B20 (20% v/v butanol and balance mineral diesel blend) vis-a-vis mineral diesel using endoscopic visualization technique.Abstract:
\n In situ spatial soot and temperature distributions were investigated experimentally for B20 (20% v/v butanol and balance mineral diesel blend) vis-a-vis mineral diesel using endoscopic visualization technique. Endoscope captured the in-cylinder combustion images in a production-grade direct injection compression ignition (DICI) engine at varying engine operating conditions. A comparative combustion data analysis using pressure-crank angle history and the captured endoscopic images was performed. An attempt was made to correlate the results of these two experimental investigations. Combustion duration (CD) obtained from the endoscopic images was relatively longer than the CD calculated from the thermodynamic analysis. Most research on soot and NOx emitted from the engine using a raw exhaust gas emission analyzer provides bulk, time-averaged, and cycle-averaged information about the pollutant formation. This investigation is unique wherein the spatial or time-resolved soot and NOx formation (Via spatial temperature distribution) are evaluated. The findings of this study support the research finding available in the open literature using an emission analyzer. This study and the technique therein on the deployment of engine endoscopy as an emerging optical technique is potentially useful to original automotive manufacturers (OEMs) in designing more efficient engines, capable of meeting upcoming stringent emission norms.read more
Citations
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Journal ArticleDOI
Optical and computational investigations of the effect of Spray-Swirl interactions on autoignition and soot formation in a compression ignition engine fuelled by Diesel, dieseline and diesohol
TL;DR: In this article , the fundamental mechanisms of pilot-main injection interactions and the effects of fuel properties have been investigated using a combined approach of optical diagnostics in an optical engine and computational fluid dynamics (CFD) tools.
Journal ArticleDOI
Review of morphological and chemical characteristics of particulates from compression ignition engines
TL;DR: In this article , the effects of diesel particulate emissions on living organisms, the consequences of exposure to diesel particulates, and the composition of Diesel particulates were analyzed exhaustively.
Journal ArticleDOI
Large Eddy Simulation Studies on Effects of Soot Productivity in a Momentum Dominated Strained Diffusion Jet Flames
M. N. Ibrahim,Udayakumar Meivelu,Dhinesh Balasubramaniam,Viet D. Tran,Thanh Hai Truong,Van Nhanh Nguyen +5 more
TL;DR: In this paper , the soot volume fraction, rate of soot nucleation, rate coagulation and surface growth, and rate of surface oxidation for flame configurations having the fuel mixture composition of C2H4: H2: N2 (63.4: 4.7: 31.9 % by mass) along with air.
Journal ArticleDOI
A new Molecular Insight in Effects of Alcohol Co-solvents on Miscibility of Anhydrous Ethanol/Diesel Blends
TL;DR: In this paper , the effects of alcohol co-solvents on miscibility of ethanol with diesel were investigated using molecular dynamics simulation, and the results showed that long-chain alcohol co solvents contributed to miscibility.
References
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Color gamut transform pairs
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Journal ArticleDOI
Progress in the production and application of n-butanol as a biofuel
TL;DR: In this article, the properties of butanol are compared with the conventional gasoline, diesel fuel, and some widely used biofuels, i.e. methanol, ethanol, biodiesel.
Journal ArticleDOI
Conceptual models for partially premixed low-temperature diesel combustion
TL;DR: In this article, a conceptual model for low-temperature combustion (LTC) diesel engines is proposed, which describes spray formation, vaporization, mixing, ignition, and pollutant formation and destruction mechanisms that are consistent with experimental observations and modeling predictions.
Journal ArticleDOI
Effects of butanol–diesel fuel blends on the performance and emissions of a high-speed DI diesel engine
Dimitrios C. Rakopoulos,Constantine D. Rakopoulos,Evangelos G. Giakoumis,Athanasios Dimaratos,Dimitrios C. Kyritsis +4 more
TL;DR: In this article, an experimental investigation is conducted to evaluate the effects of using blends of n-butanol (normal butanol) with conventional diesel fuel, with 8, 16% and 24% (by volume) nbutanol, on the performance and exhaust emissions of a standard, fully instrumented, four-stroke, high-speed, direct injection (DI), Ricardo/Cussons ‘Hydra’ diesel engine located at the authors' laboratory.