Experimental analysis of performance and emission characteristics of CRDI diesel engine fueled with 1-pentanol/diesel blends with EGR technique

•1-pentanol is a promising renewable substitute to the diesel fuel.•1-pentanol blends and EGR had negative effect on BTE and BSFC.•1-pentanol blends and EGR significantly reduces the NOx emission.•Higher ignition delay is noted for 1-pentanol/diesel blends due to low cetane number and EGR rate. This...

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Bibliographic Details
Published inFuel (Guildford) Vol. 267; p. 117187
Main Authors Santhosh, K., Kumar, G.N., Radheshyam, Sanjay, P.V.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.05.2020
Elsevier BV
Subjects
1-pentanol
Alcohols
BSFC
BTE
CRDI diesel engine
Diesel
Diesel engines
Diesel fuels
EGR
Emission analysis
Mixtures
Nitrogen oxides
NOx
EGR
BSFC
BTE
1-pentanol
NOx
CRDI diesel engine
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Summary:•1-pentanol is a promising renewable substitute to the diesel fuel.•1-pentanol blends and EGR had negative effect on BTE and BSFC.•1-pentanol blends and EGR significantly reduces the NOx emission.•Higher ignition delay is noted for 1-pentanol/diesel blends due to low cetane number and EGR rate. This research work aims to investigate the effect of higher alcohol blends on performance and emission parameters of CRDI CI engine with various EGR rate. 1-pentanol has improved fuel properties compared to lower alcohols. It can be used as a blend with diesel to mitigate the toxic emissions and to reduce the dependency on diesel fuel. The experiment was carried out in a CRDI CI engine with 1-pentanol/diesel blends (10%, 20% and 30% v/v) as a fuel, the speed of the engine kept constant (2000 rpm) by varying the load from 20 to 80% in step of 20%. Two EGR rates (10% and 20%) were also tested with blends to find the effect on engine characteristics. The performance of the engine reduces with higher 1-pentanol proportion in the blend. The experimental investigation showed that for P30D70 about 3.8% drop in BTE, 9.14% rise in BSFC, 16.7% drop in NOx emission and a slight rise in HC and CO emission was noted at 60% load. The smooth operation of the engine was noted with 1-pentanol/diesel blends and can be concluded that up to 30% of the 1-pentanol can be used as an alternative to the diesel with a slight cost of performance.
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2020.117187