Organic Rankine cycles in waste heat recovery: a comparative study

Auld, Alison; Berson, Arganthaël; Hogg, Simon

doi:10.1093/ijlct/ctt033

Cited by 25 publications

(19 citation statements)

References 8 publications

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“…The model used is an extented version of a model used in previous work by the authors [17]. The model uses standard thermodynamic heat-balance relations are used to describe the components in the cycle: heat exchangers, pump and turbine.…”

Section: Orc Modelling Methodologymentioning

confidence: 99%

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Power production via North Sea Hot Brines

Auld¹,

Hogg²,

Berson³

et al. 2014

Energy

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Section: Orc Modelling Methodologymentioning

confidence: 99%

“…The larger the UA value the larger the heat exchanger required. Specific power is 10 [17] defined as the power output divided by the mass flow rate of working fluid in the ORC.…”

Section: Orc Modelling Methodologymentioning

confidence: 99%

Power production via North Sea Hot Brines

Auld¹,

Hogg²,

Berson³

et al. 2014

Energy

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“…To understand the effect of changing heat inputs and sources in an organic Rankine cycle, Auld et al [54] introduced a method of pinch point analysis to model the ORC over a wide range of operating conditions using different working fluids for multiple heat sources. The heat sources were LP steam from an industrial plant utility system, hot brines from wells and waste heat available from internal combustion engines.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the potential of process sites for waste heat recovery

et al. 2016

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“…This can be used either to offset an industrial site's electricity demand or it may be fed into an electricity grid to generate a financial return. There is considerable interest in the organic Rankine cycle since this technology represents a flexible and relatively efficient means of generating a benefit from waste heat [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The choice of working fluid is influenced by many factors including toxicity, environmental impact in case of accidental release, stability, cost and thermodynamic properties over the range of temperatures and pressures experienced in the application. For some fluids, the temperature at which heat is input to the evaporation part of the cycle may be as low as 73.3 • C [6] while for others it may be as high as 340 • C [9]. Suitable working fluids for ORC include linear, branched and aromatic hydrocarbons, fluorinated hydrocarbons, siloxanes, ethers and alcohols.…”

Section: Introductionmentioning

confidence: 99%

Modelling the Influence of Climate on the Performance of the Organic Rankine Cycle for Industrial Waste Heat Recovery

Korolija

Greenough

2016

Energies

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This paper describes a study of the relative influences of different system design decisions upon the performance of an organic Rankine cycle (ORC) used to generate electricity from foundry waste heat. The design choices included concern the working fluid, whether to use a regenerator and the type of condenser. The novelty of the research lies in its inclusion of the influence of both the ORC location and the auxiliary electricity used by the pumps and fans in the ORC power system. Working fluids suitable for high temperature applications are compared, including three cyclic siloxanes, four linear siloxanes and three aromatic fluids. The ORC is modelled from first principles and simulation runs carried out using weather data for 106 European locations and a heat input profile that was derived from empirical data. The impact of design decisions upon ORC nominal efficiency is reported followed by the impact upon annual system efficiency in which variations in heat input and the condition of outdoor air over a year are considered. The main conclusion is that the location can have a significant impact upon the efficiency of ORC systems due to the influence of climate upon the condenser and auxiliary electricity requirements.

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Organic Rankine cycles in waste heat recovery: a comparative study

Cited by 25 publications

References 8 publications

Power production via North Sea Hot Brines

Power production via North Sea Hot Brines

Evaluating the potential of process sites for waste heat recovery

Modelling the Influence of Climate on the Performance of the Organic Rankine Cycle for Industrial Waste Heat Recovery

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