Engine with forced air intake system and 100% HVO fuel
2025
Kolins, Edgars | Gailis, Maris
The paper develops a theoretical installation of a forced air inlet system in an atmospheric engine using diesel fuel and hydrogenated vegetable oil (100% HVO) fuel. The experiments were carried out on an instrumented research CFR engine (compression ignition engine IDT 69 with adjustable compression ratio), equipped with a forced air intake. A Kistler piezoelectric pressure sensor was used to determine the pressure in the engine combustion chamber. During the experiments, the turbocharger pressure was increased 5 times (1.0 bar; 1.1 bar; 1.2 bar; 1.3 bar; 1.4 bar). For diesel and HVO fuels, the fuel nozzle opened at 500 bar and the injection duration was 1 m. Initially, diesel fuel was tested and then experiments were carried out with HVO fuel, keeping the same air inlet pressures. The aim of the work was to study the ignition and combustion characteristics of diesel and HVO fuels when the air intake pressure rises. The proposed study is based on measurements of field engine parameters (pressure) and experiments in the laboratory on a research engine. Effects of inlet air pressure and temperature increase on combustion parameters such as ignition delay and combustion phasing are evaluated by analysis of the cylinder pressure data. At the end of the study, data were collected on diesel and HVO fuels, comparing ignition characteristics and combustion characteristics. The study will provide information on whether it is necessary to change the nozzle injection advance angle of a tractor engine equipped with forced air intake and using HVO fuel.
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الناشر Latvia University of Life Sciences and Technologies