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http://dx.doi.org/10.15435/JILASSKR.2012.17.2.094

Measurements of Spray Characteristics According to Nozzle Property in Dual Fuel Engine with a Mechanical Fuel Pump  

Cho, S.H. (인하대학교 기계공학과 대학원)
Yoo, S.H. (인하대학교 기계공학과 대학원)
Lee, B.H. (인하대학교 기계공학과 대학원)
Kim, D.H. (인하대학교 기계공학과 대학원)
Lee, D.Y. (인하대학교 기계공학과)
Publication Information
Journal of ILASS-Korea / v.17, no.2, 2012 , pp. 94-99 More about this Journal
Abstract
The characteristics of spray behavior and injected amount were studied with two types of nozzles for using in a compression ignition engine with dual fuel technology for construction machines. A penetration length of spray tends to shorten due to a decrease of injected amount of a diesel fuel with dual fuel engine application. In order to ignite the gaseous fuel premixed with air during intake process, a diesel fuel, which was compression ignited, needs to penetrate somehow similar depth compared with the case of a diesel fuel-only-injection. In this work, a nozzle with reduced hole diameter and increased number of holes was tested and demonstrated that, compared to diesel 100% case, its penetration lengths are comparable to 74% and 79%, respectively, of those of 100% and 50% supply of a diesel fuel with the baseline nozzle that has four holes and 30.4% increased diameter. This will presumably enhancement the combustion in a dual fuel engine. A design suggestion was also made in this work to achieve similar penetration length of spray with diesel 100% case to prevent combustion from being deteriorated in a dual fuel engine.
Keywords
Penetration length; Mechanical fuel pump; Dual fuel CI engine; Injection amount;
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Times Cited By KSCI : 1  (Citation Analysis)
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