Combustion Characteristics of a Direct Injection Agricultural Diesel Engine with Rapeseed Oil

Choi, Sangdun; Byeon, Ji-Eun

doi:10.5307/jbe.2009.34.3.135

Cited by 1 publication

(1 citation statement)

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“…However, the technology needs manufacturing equipment such as anticorrosive reactor, high-pressure pump, back pressure pump, and heat exchanger (Iljima et al, 2008). In Korea, there are lots of research on the experiment of agricultural engines using biodiesel which was processed by esterification with soybean oil (Choi and Oh, 2010) and rapeseed oil (Choi and Byeon, 2009). However, there is little research on biodiesel for agricultural engines without esterification in waste cooking oil.…”

Section: Introductionmentioning

confidence: 99%

Viscosity Characteristics of Waste Cooking Oil with Ultrasonic Energy Irradiation

Kim¹,

Han²

2012

Journal of Biosystems Engineering

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Purpose: While rapeseed oil, soy bean oil, palm oil and waste cooking oil are being used for biodiesel, the viscosity of them should be lowered for fuel. The most widely used method of decreasing the viscosity of vegetable oil is to convert the vegetable oil into fatty acid methyl ester but is too expensive. This experiment uses ultrasonic energy, instead of converting the vegetable oil into fatty acid methyl ester, to lower the viscosity of the waste cooking oil. Methods: For irradiation treatment, the sample in a beaker was irradiated with ultrasonic energy and the viscosity and temperature were measured with a viscometer. For heating treatment, the sample in a beaker was heated and the viscosity and temperature were measured with a viscometer. Kinematic viscosity was calculated by dividing absolute viscosity with density. Results: The kinematic viscosity of waste cooking oil and cooking oil are up to ten times as high as that of light oil at room temperature. However, the difference of two types of oil decreased by four times as the temperature increased over 83 o C. When the viscosity by the treatment of ultrasonic energy irradiation was compared to one by the heating treatment to the waste cooking oil, the viscosity by the treatment of ultrasonic energy irradiation was lower by maximum of 22% and minimum of 12%, than one by the heating treatment. Conclusions: Ultrasonic energy irradiation lowered the viscosity more than the heating treatment did, and ultrasonic energy irradiation has an enormous effect on fuel reforming.

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Section: Introductionmentioning

confidence: 99%