Effect of fatty acid composition of soybean oil on deposit and performance of plant oil pressure stoves

M. Kratzeisen and J. Müller

Renewable Energy, 2009, vol. 34, issue 11, 2461-2466

Abstract: Plant oil as household energy could be a sustainable and locally available alternative for fossil fuel. However, the use of pure plant oil in pressure stoves leads to deposit in the vaporizer. Therefore, objective of this study was to investigate the effect of the degree of unsaturation of plant oils on performance and deposit formation. Soybean oil with an iodine value of 128gI2/100g was used as well as partly hydrogenated soybean oil with an iodine value of 62gI2/100g, hydrogenated soybean oil with an iodine value of 1gI2/100g, and a blend of 50% refined soybean oil and 50% partly hydrogenated soybean oil was confected to obtain an iodine value of 95gI2/100g. In burning trials, the specific fuel consumption, the required frequency of nozzle cleaning and the amount of deposit in the vaporizer were measured. Results showed an exponential increase of deposits in the vaporizer when iodine value of soybean oil was increased: deposits amounted to 0.26g/kg of consumed fuel for hydrogenated soybean oil and 0.70g/kg for the original (untreated) soybean oil. However, an increase in the soybean oil iodine value did not affect fuel consumption, which was 0.296kg/h for hydrogenated soybean oil compared to 0.286kg/h for original (untreated) soybean oil. Further research is necessary to investigate the chemical reactions in the vaporizer to identify key precursors (factors) and reactions mechanisms that could influence the formation of deposits in plant oil pressure stoves.

Keywords: Plant oil; Fatty acid composition; Iodine value; Combustion; Deposit; Conradson carbon content (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:34:y:2009:i:11:p:2461-2466

DOI: 10.1016/j.renene.2009.03.007

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