Published 6 issues per year
ISSN Print: 1940-2503
ISSN Online: 1940-2554
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AN ASSESSMENT OF WORKING-FLUID MIXTURES USING SAFT-VR MIE FOR USE IN ORGANIC RANKINE CYCLE SYSTEMS FOR WASTE-HEAT RECOVERY
ABSTRACT
Working-fluid mixtures offer an improved thermal match to heat source streams in organic Rankine cycles (ORCs) over pure (single) fluids. In the present work we investigate the selection of working-fluid mixtures and component mixing ratios for an ORC system from a thermodynamic and economic point of view. A mathematical model of a subcritical, nonregenerative ORC is constructed. We employ the SAFT-VR Mie equation of state, a state-of-the-art version of the statistical associating fluid theory (SAFT), to predict the thermodynamic state properties and phase behavior of the fluid mixtures. The effect of the working-fluid mixture selection on the efficiency and power output from the cycle is investigated, as is its effect on the sizes of the various components of the ORC engine. This is done in order to appreciate the role that the fluid mixtures have on the investment/capital costs attributed to the installation of such a unit, intended for waste-heat recovery and conversion to power. Results of an ORC using a binary decane−butane mixture as the working fluid demonstrate a significant improvement in the cost per unit power output compared to the two pure fluid components. Specifically, the added costs of the four main ORC system components (pump, expander, and two heat exchangers) were found to be as low as 120−130 £/kW, 20−30% lower compared to the pure fluids.
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Oyewunmi Oyeniyi A., Taleb Aly I., Haslam Andrew J., Markides Christos N., On the use of SAFT-VR Mie for assessing large-glide fluorocarbon working-fluid mixtures in organic Rankine cycles, Applied Energy, 163, 2016. Crossref
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Dufal Simon, Lafitte Thomas, Galindo Amparo, Jackson George, Haslam Andrew J., Developing intermolecular‐potential models for use with the SAFT ‐ VR M ie equation of state , AIChE Journal, 61, 9, 2015. Crossref
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Liu Bingcheng, Liang Baohua, Zhang Yunfei, Heat‐Source and Evaporation Temperatures for the Organic Rankine Cycle, Energy Technology, 3, 7, 2015. Crossref
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Markides Christos N., Low-Concentration Solar-Power Systems Based on Organic Rankine Cycles for Distributed-Scale Applications: Overview and Further Developments, Frontiers in Energy Research, 3, 2015. Crossref
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Oyewunmi Oyeniyi, Markides Christos, Thermo-Economic and Heat Transfer Optimization of Working-Fluid Mixtures in a Low-Temperature Organic Rankine Cycle System, Energies, 9, 6, 2016. Crossref
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Zhang Kun, Chen Xue, Markides Christos N., Yang Yong, Shen Shengqiang, Evaluation of ejector performance for an organic Rankine cycle combined power and cooling system, Applied Energy, 184, 2016. Crossref
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Kirmse Christoph, Oyewunmi Oyeniyi, Haslam Andrew, Markides Christos, Comparison of a Novel Organic-Fluid Thermofluidic Heat Converter and an Organic Rankine Cycle Heat Engine, Energies, 9, 7, 2016. Crossref
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Oyewunmi Oyeniyi A., Kirmse Christoph J.W., Haslam Andrew J., Müller Erich A., Markides Christos N., Working-fluid selection and performance investigation of a two-phase single-reciprocating-piston heat-conversion engine, Applied Energy, 186, 2017. Crossref
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Oyewunmi Oyeniyi A., Kirmse Christoph J.W., Pantaleo Antonio M., Markides Christos N., Performance of working-fluid mixtures in ORC-CHP systems for different heat-demand segments and heat-recovery temperature levels, Energy Conversion and Management, 148, 2017. Crossref
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Pantaleo Antonio M., Camporeale Sergio M., Miliozzi Adio, Russo Valeria, Mugnozza Giacomo Scarascia, Markides Christos N., Shah Nilay, Thermo-economic Assessment of an Externally Fired Hybrid CSP/biomass Gas Turbine and Organic Rankine Combined Cycle, Energy Procedia, 105, 2017. Crossref
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Pantaleo Antonio M., Camporeale Sergio M., Miliozzi Adio, Russo Valeria, Shah Nilay, Markides Christos N., Novel hybrid CSP-biomass CHP for flexible generation: Thermo-economic analysis and profitability assessment, Applied Energy, 204, 2017. Crossref
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White Martin T., Oyewunmi Oyeniyi A., Haslam Andrew J., Markides Christos N., Industrial waste-heat recovery through integrated computer-aided working-fluid and ORC system optimisation using SAFT-γMie, Energy Conversion and Management, 150, 2017. Crossref
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Frutiger Jérôme, Bell Ian, O'Connell John P., Kroenlein Kenneth, Abildskov Jens, Sin Gürkan, Uncertainty assessment of equations of state with application to an organic Rankine cycle, Molecular Physics, 115, 9-12, 2017. Crossref
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Oyewunmi Oyeniyi A., Lecompte Steven, De Paepe Michel, Markides Christos N., Thermoeconomic analysis of recuperative sub- and transcritical organic Rankine cycle systems, Energy Procedia, 129, 2017. Crossref
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Pantaleo Antonio M, Camporeale Sergio M, Sorrentino Arianna, Miliozzi Adio, Shah Nilay, Markides Christos N, Solar/biomass hybrid cycles with thermal storage and bottoming ORC: System integration and economic analysis, Energy Procedia, 129, 2017. Crossref
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Benato Alberto, Macor Alarico, Biogas Engine Waste Heat Recovery Using Organic Rankine Cycle, Energies, 10, 3, 2017. Crossref
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White M.T., Oyewunmi O.A., Chatzopoulou M.A., Pantaleo A.M., Haslam A.J., Markides C.N., Computer-aided working-fluid design, thermodynamic optimisation and thermoeconomic assessment of ORC systems for waste-heat recovery, Energy, 161, 2018. Crossref
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Ramos Alba, Chatzopoulou Maria Anna, Freeman James, Markides Christos N., Optimisation of a high-efficiency solar-driven organic Rankine cycle for applications in the built environment, Applied Energy, 228, 2018. Crossref
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A. Oyewunmi Oyeniyi, Ibrahim Dauda, N. Markides Christos, Useful Energy From Wasted Heat, Science Trends, 2018. Crossref
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Pantaleo Antonio M., Camporeale Sergio M., Sorrentino Arianna, Miliozzi Adio, Shah Nilay, Markides Christos N., Hybrid solar-biomass combined Brayton/organic Rankine-cycle plants integrated with thermal storage: Techno-economic feasibility in selected Mediterranean areas, Renewable Energy, 147, 2020. Crossref
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Oyewunmi Oyeniyi A., Pantaleo Antonio M., Markides Christos N., ORC cogeneration systems in waste-heat recovery applications, Energy Procedia, 142, 2017. Crossref
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Pantaleo Antonio M., Fordham Julia, Oyewunmi Oyeniyi A., De Palma Pietro, Markides Christos N., Integrating cogeneration and intermittent waste-heat recovery in food processing: Microturbines vs. ORC systems in the coffee roasting industry, Applied Energy, 225, 2018. Crossref
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Bonalumi D., Lasala S., Macchi E., CO2-TiCl4 working fluid for high-temperature heat source power cycles and solar application, Renewable Energy, 147, 2020. Crossref
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Simpson Michael C., Chatzopoulou Maria Anna, Oyewunmi Oyeniyi A., Le Brun Niccolo, Sapin Paul, Markides Christos N., Technoeconomic analysis of internal combustion engine – organic Rankine cycle systems for combined heat and power in energy-intensive buildings, Applied Energy, 253, 2019. Crossref
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Unamba Chinedu K., Sapin Paul, Li Xiaoya, Song Jian, Wang Kai, Shu Gequn, Tian Hua, Markides Christos N., Operational Optimisation of a Non-Recuperative 1-kWe Organic Rankine Cycle Engine Prototype, Applied Sciences, 9, 15, 2019. Crossref
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Chatzopoulou Maria Anna, Lecompte Steven, Paepe Michel De, Markides Christos N., Off-design optimisation of organic Rankine cycle (ORC) engines with different heat exchangers and volumetric expanders in waste heat recovery applications, Applied Energy, 253, 2019. Crossref
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Emadi Mohammad Ali, Chitgar Nazanin, Oyewunmi Oyeniyi A., Markides Christos N., Working-fluid selection and thermoeconomic optimisation of a combined cycle cogeneration dual-loop organic Rankine cycle (ORC) system for solid oxide fuel cell (SOFC) waste-heat recovery, Applied Energy, 261, 2020. Crossref
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Gangar Nikunj, Macchietto Sandro, Markides Christos N., Recovery and Utilization of Low-Grade Waste Heat in the Oil-Refining Industry Using Heat Engines and Heat Pumps: An International Technoeconomic Comparison, Energies, 13, 10, 2020. Crossref
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Redjeb Youcef, Kaabeche-Djerafi Khatima, Stoppato Anna, Benato Alberto, The IRC-PD Tool: A Code to Design Steam and Organic Waste Heat Recovery Units, Energies, 14, 18, 2021. Crossref