Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
SIMULATION STRATEGY OF A NOVEL SCROLL EXPANDER USING REMESH TECHNIQUE
Submission Author:
Paulo Eduardo Batista de Mello , SP
Co-Authors:
Filipi Martins Fernandes Silva, Fernando Vieira de Oliveira
Presenter: Paulo Eduardo Batista de Mello
doi://10.26678/ABCM.ENCIT2016.CIT2016-0527
Abstract
Compressed air energy storage (CAES) and organic Rankine cycle (ORC) are highly influenced by the expander isentropic efficiency. Scroll expanders are indicated for low power cycles, usually lower than 10 kW. Those expanders have their isentropic efficiency decreased by internal leakage, as shown on previous works. We present herein a transient 2D simulation of a scroll expander using the CFD and the remesh technique that quantifies the internal leakage. Simulation strategies are discussed on this paper, including the remesh process, since this may lead to a numerical error. The results are compared to experimental data obtained using a novel scroll expander. Two parameters are used for comparison with experiments: filling factor and isentropic efficiency.
Keywords
Scroll Expander, Organic Rankine Cycles (ORCs), CAES, internal leakage, Computational fluid dynamics (CFD), Scroll Expander, Organic Rankine Cycles (ORCs), CAES, internal leakage, Computational fluid dynamics (CFD)
