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Title: Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR
Authors: Rimkus, Alfredas
Vipartas, Tadas
Matijošius, Jonas
Stravinskas, Saulius
Kriaučiūnas, Donatas
Keywords: conventional diesel
chicken fat
combustion
pollutant emissions
engine efficiency
Issue Date: 2021
Publisher: MDPI
Citation: Rimkus, A.; Vipartas, T.; Matijošius, J.; Stravinskas, S.; Kriaučiūnas, D. Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR. Appl. Sci. 2021, 11, 1411. https://doi.org/10.3390/app11041411
Series/Report no.: 11;4
Abstract: This article presents a change in the indicators of a compression ignition (CI) engine by replacing conventional diesel fuel (D100) with pure chicken fat (F100) and mixtures of these fuels. Mixtures of diesel and fat with volume ratios of 70/30, 50/50 and 30/70 were used. Research of the fuel properties was conducted. In order to reduce the fuel viscosity, blends of fat and diesel were heated. The experimental research was conducted at different engine loads with exhaust gas recirculation (EGR) both off and on. The conducted analysis of the combustion process revealed a significant change in the rate of heat release (ROHR) when replacing diesel with chicken fat. Chicken fat was found to increase the CO2 and CO emissions, leaving hydrocarbon (HC) emissions nearly unchanged. Having replaced the D100 with diesel and chicken fat mixtures or F100, a significant reduction in smoke and nitrogen oxide (NOx) emissions was observed when EGR was off. When EGR was on, the smoke level increased, but the blends with chicken fat reduced it significantly, and the increased fat content in the fuel mixture reduced the NOx emissions. The engine’s brake specific fuel consumption (BSFC) increased while the brake thermal efficiency (BTE) decreased, having replaced conventional diesel with chicken fat due to differences in the fuel energy properties and the combustion process.
Description: This article belongs to the Special Issue Applications of Alternative Fuels
URI: http://dspace.vgtu.lt/handle/1/4252
ISSN: 2076-3417
Appears in Collections:Moksliniai straipsniai / Research articles

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