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Spray characteristics, engine performance and emissions analysis for Karanja biodiesel and its blends

Title
Spray characteristics, engine performance and emissions analysis for Karanja biodiesel and its blends
Author
박성욱
Keywords
Karanja oil methyl ester; Injection rate; Spray visualization; Brake specific fuel consumption; Particulate number concentration; Particulate size distribution
Issue Date
2017-01
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ENERGY, v. 119, page. 138-151
Abstract
The purpose of this paper is to investigate the effects of blending ratio of Karanja oil methyl ester (KOME) on spray characteristics and to analyze the engine performance and exhaust emissions of Karanja bio-diesel blend vis-a-vis baseline diesel. Spray characteristics were analyzed using injection rate and spray visualization experiments for the following injection pressures: 50, 100 and 150 MPa. Engine performance, emission and combustion characteristics were also investigated at various engine operation conditions.From a comparison of the spray evolution of Karanja biodiesel 40% (v/v) blend (KB40) vis-a-vis baseline diesel, the spray shape revealed a narrower and deeper penetrating spray development process for KB40. However, at an ambient pressure of 4 MPa, which is considered to be similar to the cylinder pressure of a test engine, KB40 exhibited a spray evolution behavior (spray penetration and shape) closely resembling that of diesel. In the engine experiment, lower max torque, brake thermal efficiency (BTE) and exhaust gas temperature, in addition to higher brake-specific fuel consumption (BSFC) were observed for biodiesel blend compared to diesel due to lower heating value of Karanja biodiesel. (C) 2016 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/abs/pii/S0360544216318485?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/106115
ISSN
0360-5442; 1873-6785
DOI
10.1016/j.energy.2016.12.043
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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