Charge-sensitive modelling of organic Rankine cycle power systems for off-design performance simulation

Rémi Dickes, Olivier Dumont, Ludovic Guillaume, Sylvain Quoilin and Vincent Lemort

Applied Energy, 2018, vol. 212, issue C, 1262-1281

Abstract: This paper focuses on a charge-sensitive model to characterize the off-design performance of low-capacity organic Rankine cycle (ORC) power systems. The goal is to develop a reliable steady-state model that only uses the system boundary conditions (i.e. the supply heat source/heat sink conditions, the mechanical components rotational speeds, the ambient temperature and the total charge of working fluid) in order to predict the ORC performance. To this end, sub-models are developed to simulate each component and they are assembled to model the entire closed-loop system. A dedicated solver architecture is proposed to ensure high-robustness for charge-sensitive simulations.

Keywords: Organic Rankine cycle; Modelling; Off-design; Charge-sensitive; Void fraction (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (12)

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DOI: 10.1016/j.apenergy.2018.01.004

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