A dedicated heat exchanger model is introduced for the optimization of heavy-duty diesel engines. The a prerequisite execution CFD simulations, which are used to improve waste recovery in these systems. Several methods coupled with different types working fluids compared terms exergy efficiency and complicity. three considered all lead significant improvements R245fa R1233zd systems comparative...

High-temperature organic Rankine cycle (ORC) systems have the potential to improve heat-to-power conversion efficiency and expand temperature range for heat recovery, battery solar power generation. Restricted by critical of commonly used working fluids, current ORC technology has a maximum around 300 °C. This paper proposes high-temperature cascade (CORC) system using biphenyl diphenyl oxide (...

Using organic Rankine cycles (ORC) for waste heat recovery in vehicles promises significant reductions fuel consumption. Controlling the cycle, however, is difficult due to highly transient exhaust gas conditions. To tackle this issue, nonlinear model predictive control (NMPC) has been proposed and approximate NMPC solutions have investigated reduce computational demand. Herein, we compare (i) ...