Dynamic Modeling of Organic Rankine Cycle (ORC) System for Fault Diagnosis and Control System Design (2016)
Dynamic simulation plays an important role of providing a higher-level of process analysis of the system and supporting system configuration, operation, maintenance, diagnosis and design of the control system. The purpose of this research is to develop a virtual simulation tool for current suite of geothermal power plants. This article provides a numerical modeling framework for the dynamic modeling including detailed component models and a generic dynamic feedback control and fault diagnosis model for an organic Rankine cycle (ORC) system. A moving boundary method with switched system model is used to model time-varying performance of a heat exchanger in various flow conditions. A custom library for models of ORC components and system dynamic models has been built in Matlab/Simulink environment. The developed model is capable of designing a component- and system level control strategy and fault diagnosis system.
CitationKrumdieck SP, Choi S (2016). Dynamic Modeling of Organic Rankine Cycle (ORC) System for Fault Diagnosis and Control System Design. Auckland, New Zealand: New Zealand Geothermal Workshop. 23/11/2016-25/11/2016. Proceedings of the New Zealand Geothermal Workshop. 2016.
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KeywordsOrganic Rankine Cycle; Dynamic Modeling and Control; Moving Boundary Lumped Parameter Method
ANZSRC Fields of Research09 - Engineering::0906 - Electrical and Electronic Engineering::090608 - Renewable Power and Energy Systems Engineering (excl. Solar Cells)
09 - Engineering::0913 - Mechanical Engineering::091302 - Automation and Control Engineering
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Budisulistyo D; Krumdieck, SP (Geothermal Institute, University of Auckland, 2016)This paper discusses a methodology for analysing and optimization of organic Rankine cycle (ORC) designs using a new thermo-economic design to resource (DTR) method. The objective of the DTR method is to obtain the ...
Meyer D; Wong CS; Engle F; Krumdieck S (2013)Organic Rankine Cycle (ORC) systems are capable of utilising low-enthalpy geothermal sources. The aim of the Above Ground Geothermal and Allied Technologies (AGGAT) research programme is the development of ORC systems ...
Methodology of pre-feasibility study for a binary geothermal power plant utilizing moderate-temperature heat resources Budisulistyo D; Wijninckx R; Krumdieck SP (Geothermal Institute, University of Auckland, 2015)The exploitation of medium-low temperature geothermal reservoirs is a potential resource that does not yet have mature commercial technology solutions. This study describes a methodology of pre-feasibility study for a ...