Experimental Testing of Combustion Parameters and Emissions of Waste Motor Oil and Its Diesel Mixtures

Dragiša Đorđić,Tihomir Đurić,Slavko Đurić,Milan Milotić,Zoran Ćurguz

doi:10.3390/en14185950

Dragiša Đorđić, Tihomir Đurić + Show 3 more

Open Access

https://doi.org/10.3390/en14185950

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Journal: Energies	Publication Date: Sep 18, 2021
Citations: 3	License type: CC BY 4.0

Affiliation: University of Banja Luka, University of East Sarajevo

Abstract

The production of hydrocarbon fuel from waste engine oil is an excellent way to produce alternative fuels. The aim of the research in this paper is obtaining fuel with a mixture of waste engine oil (WMO) and diesel fuel that can be used as an alternative fuel for internal combustion engines and low power heat generators. With this goal in mind, tests were conducted to estimate the combustion parameters and emissions at a low heat output of 40 kW. Waste motor oils (WMO) and four of its diesel mixtures were used, varying in weight from 20% WMO to 50% WMO. Test results were analysed and compared with diesel fuel. Higher NO, CO and CO2 emissions were determined for WMO and its mixtures compared to diesel fuel. The flue gas temperature in the kiln was high for all WMO and diesel blends, which indicates the efficiency of the input energy. The absorption of flue gases in the scrubber with distilled water showed higher presence of sulphates, sulphides, nitrates and nitrites compared to allowable values.

Highlights

Increasing energy consumption, strict emission standards and consumption of oil resources have led a large number of researchers to explore the possibility of using alternative fuels for internal combustion engines and heat generators
Waste motor oil was used as fuel by mixing with diesel fuel in mass proportions of
Since these mixtures are close to the properties of diesel fuel in terms of calorific value (Table 2), combustion was performed in a rotary kiln with thermal power of 40 kW without any difficulties, and the following conclusions were reached:

Summary

Introduction

Increasing energy consumption, strict emission standards and consumption of oil resources have led a large number of researchers to explore the possibility of using alternative fuels for internal combustion engines and heat generators. Waste oils present a serious problem for the environment due to their disposal and are considered useful energy sources due to their high calorific value. Motor oils have multiple roles in internal combustion engines. They lubricate the engine, reduce friction and wear of its moving parts, ensure good cylinder–piston assembly sealing, protect the engine from corrosion, ensure efficient engine cooling, keep the engine in a clean and functional state and prevent the formation of sediment and impurities on engine parts. Legal regulations concerning waste disposal are increasingly violated in Bosnia and Herzegovina, and that especially applies to the disposal of motor oil (WMO)

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