Research partners: Ghent University – Applied Thermodynamics and Heat Transfer, University of Liège – Energy Systems, Ghent University – SYSTeMS
In this work package models are developed to study ORCs with a supercritical fluid. These models are then used to gain a better understanding of ORC operation in supercritical conditions for a range of working fluids and conditions, considering “optimal” cycles as demonstrated in 1.
To use supercritical fluids in an ORC, heat exchangers (HXs) are needed. Based on previous experiences with HX design at UGent, supercritical HX concepts for ORC applications are studied. By considering various designs and constraints “optimal” configurations will be proposed. Because horizontal shell-and-tube heat exchangers are most suitable for ORC applications, the research project focuses on horizontal tubes.
In collaboration with the experimental program in 5, a PoC will be provided by manufacturing and testing a SC HX. This HX will be designed by UGent in collaboration with HoWest based on the results from (3) and considering the constraints of the test facility and the measurement requirements to ensure accurate validation.
Finally, control strategies are developed for these units (in close collaboration with WP3), providing operational boundaries for good working conditions.