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Some Physiochemical Tests of Sunflower Oil and No. 2 Diesel Oil as Fuels

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Title: Some Physiochemical Tests of Sunflower Oil and No. 2 Diesel Oil as Fuels
Author: Kaufman, K. R.; Kucera, H. L.; Moilanen, C. W.; Ramdeen, P.; Backer, L. F.
Description: This paper addresses the evaluation of the suitability of sunflower oil as a fuel for diesel engines by determining the physiochemical properties of sunflower oil, No. 2 and blends of both. This evaluation was accomplished by the American Petroleum Institute gravity rating, heat of combustion, kinematic viscosity, pour point, cloud point and water content of these fuels using methods specified by the American Society of Testing Materials for diesel fuels. These tests for petroleum products are designed to standardize results so comparisons can be made from one laboratory to another. If any comparison is made among the fuels, it must be considered that No.2 diesel is recommended for high speed engines in farm tractors under intermediate to heavy loads at ambient air temperatures above 41 degrees F. The fuel properties that determine a good compression ignition fuel are primarily cetane rating and volatility. The heat difference in heat of combustion of the sunflower oil is 4.7% lower than No.2 diesel fuel. The higher viscosity of the sunflower oil does not favor it's use in unmodified diesel engines. A 75% diesel fuel:25% sunflower oil blend should perform very close to No.2 diesel fuel when burned in the engine under similar conditions.
Date: 1982
Subject: Biofuels
Permalink: http://hdl.handle.net/10365/4664

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