Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
Sizing procedure of a scroll expander prototype for ORC applications
Submission Author:
Paulo Eduardo Batista de Mello , SP
Co-Authors:
Paulo Eduardo Batista de Mello
Presenter: Paulo Eduardo Batista de Mello
doi://10.26678/ABCM.ENCIT2018.CIT18-0391
Abstract
Compressed air energy storage (CAES) and organic Rankine cycle (ORC) are promising new technologies that demand scroll expanders with high isentropic efficiency. These devices are a good expander choice for the lower power range, below 10 kW. Internal leakages are the main factor influcencing the efficiency of the scroll expander. This work presents considerations about sizing one scroll expander to work with R245fa fluid. The sizing procedure starts with one analysis of the ORC cycle where the expanding device will be used: inlet and outlet pressure, power and mass flow rate.The relation between this operational conditions and the geometry of the expander is discussed.
Keywords
Scroll Expander, CAES, ORC
