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Volume 08
Research & Reviews: Journal of Engineering and Technology
ISSN: 2319-9873
Automobile Europe 2019
July 08-09, 2019
6
th
International Conference and Exhibition on
July 08-09, 2019 | Zurich, Switzerland
Automobile & Mechanical Engineering
Aldehyde and ketone emission characteristics according to operating conditions of diesel engine using
blended diesel fuel with hydrated n-butanol
Kyung Hwan Kim
1
, Byungchul Choi
1
, Suhan Park
1
, Seong in Jo
1
, Eugene Kim
1
and
David Chiaramonti
2
1
Chonnam National University, South Korea
2
University of Florence, Italy
T
he objectives of this study is to investigate the emission characteristics, especially, aldehyde and ketone, from a
single-diesel engine when using diesel, butanol, and water mixture. Characteristics of combustion and exhaust
emission of blended fuels (Diesel+Butanol+Water) are compared with the results of the neat diesel according to
operating conditons of the engine. The blended fuels are set of two groups (D10B2W and D10B5W). Both fuels
have 10 wt% of butanol and each with 2 wt% and 5 wt% of water. Blending n-butanol and water with diesel holds
the purpose of simultaneously reduce both particle matter (PM) and oxidizes of nitrogen (NOX) from the diesel
engine. Four aldehydes (formaldehyde, acetaldehyde, acrolein, propionaldehyde) and one ketone (acetone) are
mainly measured by DNPH-HPLC method. Engine operating conditons were two engine speed, one fixed injection
quantity, and 4 different injection timings. For the aldehydes and ketone results, by adding alcohol fuel to the diesel
have increased the amount of the carbonyl compounds than neat diesel. Also increasing the water amount leads to
having more carbonyl compounds. Aldehydes and ketone tend to be produced more at low combustion temperature
and when reaction time is short. NOX was clearly reduced at 900 rpm and this is enhanced when the content of water
increased. But NOX reduction at 1900 rpm was minor from both blended fuels. At most of the engine operating
conditions, the diameter of the PM(particulate matter) has reduced than neat diesel. But at the one of the engine
operating condition, when using D10B5W fuel, the diameter of the PM have exceeded the neat diesel case resulting
increased mass of PM.
kkh880323@gmail.comJET 2019, Volume 08