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DY: Fachverband Dynamik und Statistische Physik
DY 11: Energy Systems (joint session DY/SOE)
DY 11.1: Talk
Monday, March 12, 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.