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Öğe Investigation of the effects of butanol addition on safflower biodiesel usage as fuel in a generator diesel engine(Elsevier, 2018-06-15) Aydın, Hüseyin; Çelebi, YahyaAs our world demands more and more energy and fossil fuel resources are running out, searches onfindingalternative fuels in internal combustion engines are increasing. Alcohols and biofuels obtained from oils can beused as alternative diesel fuels. The present work investigated the effects ofn-butanol addition to safflowerbiodiesel usage in a diesel engine used for driving an electrical power generator. Safflower biodiesel was ob-tained by using transesterification method. Binary blends of butanol-biodiesel and ternary blends of ultra-lowsulfur diesel-biodiesel–butanol were contained 5%, 10%, and 20% butanol in volume basis. The tests werecarried out on a four-cylinder, four-strokes, and direct-injection diesel engine at half load operation with stableengine speed of 1500 rpm. Experimental test results on combustion characteristics, emission and performance ofthe fuels were investigated. According to test results, formation of heat release rates and in-cylinder pressurecurves were considerably similar and total heat transfer, average gas temperature and mass fraction burned wereslightly changed. The ternary blends showed lower emission and increased brake thermal efficiency up to 1.5%.Besides, average mass fuel consumption was increased up to 5% and brake specific fuel consumption up to 6%.For the other fuels, emission and brake thermal efficiency were deteriorated.
