Berlin 2018 – wissenschaftliches Programm

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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 5: Energy Systems / Power Grids (joint session DY/SOE)

SOE 5.1: Vortrag

Montag, 12. März 2018, 12:00–12:15, BH-N 128

Energy recuperation system for skip trucks — •Robin Masser, Karsten Schwalbe, and Karl Heinz Hoffmann — Chemnitz University of Technology, Chemnitz, Germany

When braking with conventional brake discs, kinetic energy is converted into heat that is released to the environment. The reduction of the energy made unusable in this process has been in the focus of research during the last decades. Following this goal, our work aims to reduce the fuel consumption of commercial vehicles, in particular of skip trucks. Therefore, a module consisting of a hydraulic pump driven by the cardan shaft and a bladder accumulator is installed to store and reuse energy. The stored energy may then be used to operate auxiliary units, to support the thermal management and as additional propulsion. This system consisting of the hydraulic components, the cooling circuit as well as pressure and heat losses is modeled applying endoreversible thermodynamics. Based on this model, system parameters and control strategies can be optimized in terms of power and efficiency. The resulting fuel and operational cost savings are estimated evaluating recorded urban driving data.