Master thesis Jasper Van Dessel

Multivariable optimal control in organic rankine cycle (ORC) systems for waste heat recovery
By 
| Jasper Van Dessel | Master of Science in Electromechanical Engineering | Ghent University, Department of Electrical Energy, Systems and Automation
Promotor(s) |  Prof. dr. ir. Robain De Keyser
Year | 2013-2014

Abstract

The optimal control of an organic rankine cycle is addressed for waste heat systems with strongly varying conditions using R245fa as working fluid where linear control fails. A real-time steady state optimiser is implemented in the control system such that the system can adapt to the conditions and a non-linear model is developed using moving boundary models. The model is used in a constrained NMPC controller using the NEPSAC algorithm.