Experimental Study on Heat Loss of a Single Screw Expander for an Organic Rankine Cycle System
Frontiers in Energy Research, 2020 For displacement expanders, the irreversible losses include leakage, friction, heat dissipation, and flow resistance. Currently, the research on the heat loss of expanders is scarce, especially with regards to experimental studies.
Wei Wang +9 more
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Comparison between single and cascaded organic Rankine cycle systems accounting for the effects of expansion volume ratio on expander performance [PDF]
, 2019 Compared to single-stage organic Rankine cycle (ORC) systems, cascaded ORC systems, in which a high-temperature topping cycle and low-temperature bottoming cycle are coupled together, could have advantages in terms of removing the potential for sub ...
A I Sayma +6 more
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Energies, 2020 The organic Rankine cycle is a mature small-scale power generation technology for harnessing low- to mid-temperature heat sources. However, the low efficiency of the cycle still hinders its widespread implementation.
Yeqiang Zhang +7 more
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Expander selection for an on board ORC energy recovery system [PDF]
, 2017 This paper deals with the comparison between volumetric expanders (screw, scroll and rotary vane) and an Inlet Forward Radial (IFR) micro turbine for the exploitation of an on board Organic Rankine Cycle (ORC) energy recovery system.
Capata, Roberto, Fabio, Pantano
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Closed-Loop PI Control of an Organic Rankine Cycle for Engine Exhaust Heat Recovery
Energies, 2020 The internal combustion engine (ICE) as a main power source for transportation needs to improve its efficiency and reduce emissions. The Organic Rankine Cycle (ORC) is a promising technique for exhaust heat recovery.
Wen Zhang +4 more
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Operation Characteristics and Transient Simulation of an ICE-ORC Combined System
Applied Sciences, 2019 Currently, internal combustion engines (ICEs) are still the main power for transportation. Energy conservation and emission reduction for ICEs have become the driving force of the industrial R&D in recent years.
Tong Liu +6 more
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Optimisation of power generation cycles using saturated liquid expansion to maximise heat recovery [PDF]
, 2017 The use of two-phase screw expanders in power generation cycles can achieve an increase in the utilisation of available energy from a low-temperature heat source when compared with more conventional single-phase turbines. The efficiency of screw expander
Read, M. G., Smith, I. K., Stosic, N.
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Different Numerical Approaches for the Analysis of a Single Screw Expander
Energy Procedia, 2016 Abstract Positive displacement machines (e.g. scroll, twin screw, reciprocating, etc.) are proven to be suitable as expanders for organic Rankine cycle (ORC) applications, especially in the medium to low power range. However, in order to increase their performance, detailed simulation models are required to optimize the design and reduce the internal
SUMAN, Alessio +5 more
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Development and a Validation of a Charge Sensitive Organic Rankine Cycle (ORC) Simulation Tool
Energies, 2016 Despite the increasing interest in organic Rankine cycle (ORC) systems and the large number of cycle models proposed in the literature, charge-based ORC models are still almost absent.
Davide Ziviani +7 more
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Non-symmetric approach to single-screw expander and compressor modeling
IOP Conference Series: Materials Science and Engineering, 2017 Single-screw type volumetric machines are employed both as compressors in refrigeration systems and, more recently, as expanders in organic Rankine cycle (ORC) applications. The single-screw machine is characterized by having a central grooved rotor and two mating toothed starwheels that isolate the working chambers.
Ziviani, Davide +5 more
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