Comparison of Combustion Characteristics of Ethanol and Butanol Blended with Gas Oil in Direct Injection Diesel Engine
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TLDR
In order to realize a premixed compression ignition (PCI) engine by utilizing bio-alcohol, combustion characteristics of bioalcohol blended with gas oil were compared between ethanol and n-butanol in a diesel engine as mentioned in this paper, and the effects of the ethanol blend ratio and the butanol blend ratio on ignition delay, premixed combustion, diffusion combustion, fuel consumption and exhaust emissions such as smoke density, nitrogen oxide (NOx) and so on were investigated experimentally.Abstract:
In order to realize a premixed compression ignition (PCI) engine by utilizing bio-alcohol, combustion characteristics of bio-alcohol blended with gas oil were compared between ethanol and n-butanol in a diesel engine. The effects of the ethanol blend ratio and the butanol blend ratio on ignition delay, premixed combustion, diffusion combustion, fuel consumption and exhaust emissions such as smoke density, nitrogen oxide (NOx) and so on were investigated experimentally. It is found that ethanol almost burns out together with low evaporation temperature composition of gas oil in the premixed combustion period and the heat release in the diffusion combustion is based on mainly high evaporation temperature composition of gas oil, then, soot is formed in the diffusion combustion of gas oil. On the other hand, a part of butanol burns in the diffusion combustion, and the combustion of butanol in the diffusion stage is not the cause of soot formation. Butanol is more useful in diesel engine compared with ethanol because butanol can be blended with gas oil without surface-active agent, and fuel consumption and smoke are almost equal in both blend fuels if the alcohol blend ratio is the same.read more
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References
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The influence of n-butanol/diesel fuel blends utilization on a small diesel engine performance and emissions
TL;DR: In this paper, the influence of n -butanol/diesel fuel blends (as an oxygenation additive for the diesel fuel) on engine performance and exhaust emissions in a small diesel engine was evaluated.
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TL;DR: In this paper, the influence of the diesel fuel n-butanol content on the performance and emissions of a heavy duty direct injection diesel engine with multi-injection capability was investigated.
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Combustion heat release analysis of ethanol or n-butanol diesel fuel blends in heavy-duty DI diesel engine
Dimitrios C. Rakopoulos,Constantine D. Rakopoulos,Roussos G. Papagiannakis,Dimitrios C. Kyritsis +3 more
TL;DR: In this paper, an experimental study was conducted to evaluate the effects of using blends of diesel fuel with either ethanol in proportions of 5% and 10% or n -butanol in 8% and 16% (by vol.), on the combustion behavior of a fully-instrumented, six-cylinder, turbocharged and after-cooled, heavy duty, direct injection (DI), ‘Mercedes-Benz’ engine installed at the laboratory.
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Experimental study on performance and emissions of a high speed diesel engine fuelled with n-butanol diesel blends under premixed low temperature combustion
TL;DR: In this article, results of an experimental investigation carried out in a modern diesel engine running at different operative conditions and fuelled with blends of diesel and n-butanol, are reported.
Proceedings ArticleDOI
Description and Analysis of Diesel Engine Rate of Combustion and Performance Using Wiebe's Functions
TL;DR: In this paper, the rate of combustion data were derived and analyzed using a double Wiebe's function approximation using two laboratory engines, one direct injection and one indirect injection, were operated for a range of speeds, loads, injection timings, fuels, and steady and transient conditions.