| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:49 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2021 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
Study of a high efficiency hybrid electric/biodiesel propulsion system for automobiles
Authors:
Florian POMPIERU
Affiliation:
University of Bucharest, Faculty of Physics, 405 Atomistilor Street, 077125, Magurele, Romania
E-mail
florin@uavrobotics.eu
Keywords:
propulsion system, efficiency, hybrid cars, biodiesel, low emissions, sustainable mobility
Abstract:
Nowadays, the low efficiency of ICE (Internal Combustion Engine) powered personal vehicles is a delicate issue in the context of CO2 emissions and climate change. This paper begins with the study of the real efficiency and emissions of a typical diesel European automobile in a mixed use cycle. Based on the results, in the second part proposes a series of significant improvements, using a hybrid high-efficiency electric/Biodiesel propulsion/generation system with the following particularities:
exclusive electric propulsion; 2Stroke diesel generator engine, small capacity <600cc, electric brushless supercharged, with constant maximum load and rotation, powered by biodiesel fuel; heat recovery using additional water injection cycle and external exhaust thermionic heat recovery generator; heat accumulator built into the biodiesel tank; advanced system for predicting and optimizing the generator-motor set functions depending on the specifics of the route ahead (the car will always know how to optimally manage its resources).
The efficiency and emissions study will be based on collecting real-life data from a typical European ECU in a small car, monitoring energy losses and emission specifics for streamlining a hybrid engine/generator system.
The theoretical analysis aims to show that such an engine could reduce emissions and consumption below or similar to those of a fully electric car (powered by the public grid), thus the autonomy with a 20-liter tank, in the combined WLTP cycle and real use can exceed 1500km. Emission control is much more facile especially due to the constant intake / exhaust flow which eliminates the need for inertial EGR (Exhaust Gas Recirculation) type controls and NOx / PM post-treatments due to fluctuations in the stoichiometric ratio in case of load and speed variation of the wheel-connected ICE.
|
|
|
|