A Review on the Preliminary Design of Axial and Radial Turbines for Small-Scale Organic Rankine Cycle

Organic Rankine cycle (ORC) is an effective technology to harness low-grade energy. Turbine, as a key component of ORC, takes advantages of its high efficiency and compact size compared with other expanders. Currently, developing suitable turbines with a high performance and a low cost is one of the...

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Bibliographic Details
Published in:Energies (Basel) 2023-04, Vol.16 (8), p.3423
Main Authors: Wang, Enhua, Peng, Ningjian
Format: Article
Language:English
Subjects:
axial turbine
Design
Design and construction
Efficiency
Expanders
Flow rates
Fluids
Heat
Heat recovery systems
Investigations
Mass flow rate
Mathematical optimization
mean-line model
Optimization
Optimization algorithms
organic Rankine cycle
preliminary design
Preliminary designs
Pressure
Pressure ratio
radial turbine
Rankine cycle
Stochasticity
Supersonic flow
Thermodynamic cycles
Turbines
Velocity
Working conditions
Working fluids
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Summary:Organic Rankine cycle (ORC) is an effective technology to harness low-grade energy. Turbine, as a key component of ORC, takes advantages of its high efficiency and compact size compared with other expanders. Currently, developing suitable turbines with a high performance and a low cost is one of the bottlenecks for wide applications of various ORCs. In this context, technical progress on radial inflow turbines (RITs), axial turbines (ATs), and radial outflow turbines (ROTs) is introduced, and loss models used in the preliminary design are compared, especially for small-scale ORCs. RIT is recommended for medium and small ORCs with an expansion pressure ratio of
ISSN:1996-1073
1996-1073
DOI:10.3390/en16083423