Evaluation of the Combustion and Emission Parameters of Waste Transformer Oil and Its Diesel Blends

The production of fuel from Waste Transformer Oil (WTO) is an excellent way to produce alternative fuels. The aim of research in this paper is to obtain fuel by mixing WTO with diesel fuel in different mass ratios that can be used as an alternative fuel for low-power heat generators as well as for internal combustion engines. Waste oils are a serious problem for the environment due to their disposal, and are considered useful energy sources for their high calorific value. Taking these facts into account, research was conducted to evaluate the combustion and emission parameters in a boiler furnace of 40 kW using Waste Transformer Oil (WTO) and its four diesel blends by varying WTO mass fractions from 20% to 50%. The results were analyzed and compared with diesel fuel. An increase of NO, CO, CO2 emissions were observed for WTO and its diesel blends and compared to diesel. The flue gas temperature in the kiln is high for the WTO, which indicates the efficiency of the input energy. During the flue gas purification in a gas washing bottle, concentrates of sulfate, sulfide, nitrate, and nitrite were recorded.