Effects of water droplet size and crude glycerin content as an emulsifier on diesel combustion with emulsified biodiesel

Kazunori Hamasaki, Eiji Kinoshita, Choesnul Jaqin, Hiroshi Tajima

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The effect of water droplet size on emulsified biodiesel combustion is investigated using a DI diesel engine. When the Sauter mean diameter of water droplet in emulsified biodiesel with 15 wt% water content and without adding emulsifier changes 30 to 170 μm, the ignition delay and exhaust emissions are almost same. Moreover, to clarify the effect of content of crude glycerin used as an emulsifier on emulsified biodiesel combustion, biodiesel with 3 wt% crude glycerin also is investigated. Biodiesel with 8 wt% crude glycerin has longer ignition delay and higher NOx, CO, HC and Smoke emissions compared with biodiesel. Based on the results, it is considered that with increase in content of crude glycerin as an emulsifier, although emulsified biodiesel has smaller water droplet size and higher viscosity, the combustion deterioration is caused by crude glycerin itself rather than by different size of water droplet in emulsified biodiesel.

Original languageEnglish
Pages (from-to)2907-2913
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume70
Issue number699
DOIs
Publication statusPublished - Jan 1 2004

Fingerprint

Biodiesel
Glycerol
water
ignition
Water
exhaust emission
diesel engines
smoke
deterioration
moisture content
Ignition
viscosity
Smoke
Water content
Deterioration
Diesel engines
Viscosity

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

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abstract = "The effect of water droplet size on emulsified biodiesel combustion is investigated using a DI diesel engine. When the Sauter mean diameter of water droplet in emulsified biodiesel with 15 wt{\%} water content and without adding emulsifier changes 30 to 170 μm, the ignition delay and exhaust emissions are almost same. Moreover, to clarify the effect of content of crude glycerin used as an emulsifier on emulsified biodiesel combustion, biodiesel with 3 wt{\%} crude glycerin also is investigated. Biodiesel with 8 wt{\%} crude glycerin has longer ignition delay and higher NOx, CO, HC and Smoke emissions compared with biodiesel. Based on the results, it is considered that with increase in content of crude glycerin as an emulsifier, although emulsified biodiesel has smaller water droplet size and higher viscosity, the combustion deterioration is caused by crude glycerin itself rather than by different size of water droplet in emulsified biodiesel.",
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T1 - Effects of water droplet size and crude glycerin content as an emulsifier on diesel combustion with emulsified biodiesel

AU - Hamasaki, Kazunori

AU - Kinoshita, Eiji

AU - Jaqin, Choesnul

AU - Tajima, Hiroshi

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N2 - The effect of water droplet size on emulsified biodiesel combustion is investigated using a DI diesel engine. When the Sauter mean diameter of water droplet in emulsified biodiesel with 15 wt% water content and without adding emulsifier changes 30 to 170 μm, the ignition delay and exhaust emissions are almost same. Moreover, to clarify the effect of content of crude glycerin used as an emulsifier on emulsified biodiesel combustion, biodiesel with 3 wt% crude glycerin also is investigated. Biodiesel with 8 wt% crude glycerin has longer ignition delay and higher NOx, CO, HC and Smoke emissions compared with biodiesel. Based on the results, it is considered that with increase in content of crude glycerin as an emulsifier, although emulsified biodiesel has smaller water droplet size and higher viscosity, the combustion deterioration is caused by crude glycerin itself rather than by different size of water droplet in emulsified biodiesel.

AB - The effect of water droplet size on emulsified biodiesel combustion is investigated using a DI diesel engine. When the Sauter mean diameter of water droplet in emulsified biodiesel with 15 wt% water content and without adding emulsifier changes 30 to 170 μm, the ignition delay and exhaust emissions are almost same. Moreover, to clarify the effect of content of crude glycerin used as an emulsifier on emulsified biodiesel combustion, biodiesel with 3 wt% crude glycerin also is investigated. Biodiesel with 8 wt% crude glycerin has longer ignition delay and higher NOx, CO, HC and Smoke emissions compared with biodiesel. Based on the results, it is considered that with increase in content of crude glycerin as an emulsifier, although emulsified biodiesel has smaller water droplet size and higher viscosity, the combustion deterioration is caused by crude glycerin itself rather than by different size of water droplet in emulsified biodiesel.

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