Characterizing the performance of a single-screw expander in a small-scale organic Rankine cycle for waste heat recovery

Ziviani, Davide; Gusev, Sergei; Lecompte, Steven; Groll, Eckhard A.; Braun, James E.; Horton, W. Travis; Broek, Martijn van den; Paepe, Michel De

doi:10.1016/j.apenergy.2016.08.048

Cited by 81 publications

(35 citation statements)

References 30 publications

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“…Nowadays screw expanders show a much larger technical maturity than scroll and piston expanders [39]. The internal efficiency of single screw expander has exceeded 50% and the maximum is about 65% [25,40]. Therefore, 65% is used for analysis of single screw expander in this section.…”

Section: Subcritical Cycle Analysis Considering Isentropic Efficiencymentioning

confidence: 99%

Zeotropic Mixture Selection for an Organic Rankine Cycle Using a Single Screw Expander

Zhang

et al. 2020

Energies

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The organic Rankine cycle (ORC) is a popular and promising technology that has been widely studied and adopted in renewable and sustainable energy utilization and low-grade waste heat recovery. The use of zeotropic mixtures in ORC has been attracting more and more attention because of the possibility to match the temperature profile of the heat source by non-isothermal phase change, which reduces the irreversibility in the evaporator and the condenser. The selection of working fluid and expander is strongly interconnected. As a novel expander, a single screw expander was selected and used in this paper for efficient utilization of the wet zeotropic mixtures listed in REFPROP 9.1 in a low-temperature subcritical ORC system. Five indicators, namely net work, thermal efficiency, heat exchange load of condenser, temperature glide in evaporator, and temperature glide in condenser, were used to analyze the performance of an ORC system with wet and isentropic zeotropic mixtures as working fluids. The calculation and analysis results indicate that R441A with an expander outlet temperature of 320 K may be the suitable zeotropic mixture used for both open and close type heat source. R436B may be selected with an expander outlet temperature of 315 K. R432A may be selected with an expander outlet temperature from 295 K to 310 K.

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Section: Subcritical Cycle Analysis Considering Isentropic Efficiencymentioning

confidence: 99%

Zeotropic Mixture Selection for an Organic Rankine Cycle Using a Single Screw Expander

Zhang

et al. 2020

Energies

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“…The results indicated that the expander's and the cycle's efficiencies and power output were 73.1%, 9.44% and 2.3 kW respectively. Ziviani et al [26] performed a numerical and experimental study of a singlescrew expander for ORC applications with a heat source temperature of 125°C; R245fa and SES36 were used as the working fluids.…”

Section: Introductionmentioning

confidence: 99%

An innovative small-scale two-stage axial turbine for low-temperature organic Rankine cycle

Jubori

Al-Dadah

Mahmoud

2017

Energy Conversion and Management

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“…Scroll, screw and vane expanders are the most common machines among the volumetric ones [91][92][93]. Li et al [94] recently proposed a piston expander with the aim of reducing the component complexity and cost.…”

Section: Expander Selectionmentioning

confidence: 99%

Small Scale Organic Rankine Cycle (ORC): A Techno-Economic Review

et al. 2017

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Abstract:The Organic Rankine Cycle (ORC) is widely considered as a promising technology to produce electrical power output from low-grade thermal sources. In the last decade, several power plants have been installed worldwide in the MW range. However, despite its market potential, the commercialization of ORC power plants in the kW range did not reach a high level of maturity, for several reasons. Firstly, the specific price is still too high to offer an attractive payback period, and secondly, potential costumers for small-scale ORCs are typically SMEs (Small-Medium Enterprises), generally less aware of the potential savings this technology could lead to. When it comes to small-scale plants, additional design issues arise that still limit the widespread availability of the technology. This review paper presents the state of the art of the technology, from a technical and economic perspective. Working fluid selection and expander design are illustrated in detail, as they represent the bottleneck of the ORC technology for small-scale power production. In addition, a European market analysis is presented, which constitutes a useful instrument to understand the future evolution of the technology.

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Characterizing the performance of a single-screw expander in a small-scale organic Rankine cycle for waste heat recovery

Cited by 81 publications

References 30 publications

Zeotropic Mixture Selection for an Organic Rankine Cycle Using a Single Screw Expander

Zeotropic Mixture Selection for an Organic Rankine Cycle Using a Single Screw Expander

An innovative small-scale two-stage axial turbine for low-temperature organic Rankine cycle

Small Scale Organic Rankine Cycle (ORC): A Techno-Economic Review

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