The Experts below are selected from a list of 8916 Experts worldwide ranked by ideXlab platform
Ibrahim Dincer - One of the best experts on this subject based on the ideXlab platform.
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exergy and cost analyses of waste heat recovery from furnace cement slag for clean Hydrogen production
Energy, 2019Co-Authors: H Ishaq, Ibrahim Dincer, G F NatererAbstract:This paper examines the performance and viability of a cement slag waste heat recovery system combined with a thermochemical copper-chlorine cycle for Hydrogen production combined with Hydrogen Compression and a reheat Rankine cycle. The waste heat from the cement slag is recovered as a heat source for high-temperature reactions in the copper-chlorine cycle. The clean Hydrogen production from waste heat recovery is examined with respect to both energy and exergy efficiencies. The integrated system is simulated and modeled in Aspen Plus. The multigeneration system utilizes the industrial waste heat and significantly reduces operating costs from the waste heat recovery. The overall energy efficiency of the integrated system is obtained as 32.5% while the corresponding exergy efficiency becomes 31.8%.
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development and assessment of a solar wind and Hydrogen hybrid trigeneration system
International Journal of Hydrogen Energy, 2018Co-Authors: H Ishaq, Ibrahim Dincer, G F NatererAbstract:Abstract A solar-wind hybrid trigeneration system is proposed and analyzed thermodynamically through energy and exergy approaches in this paper. Hydrogen, electricity and heat are the useful products generated by the hybrid system. The system consists of a solar heliostat field, a wind turbine and a thermochemical copper-chlorine (Cu-Cl) cycle for Hydrogen production linked with a Hydrogen Compression system. A solar heliostat field is employed as a source of thermal energy while the wind turbine is used to generate electricity. Electric power harvested by the wind turbine is supplied to the electrolyzer and compressors and provides an additional excess of electricity. Hydrogen produced by the thermochemical copper-chlorine (Cu-Cl) cycle is compressed in a Hydrogen Compression system for storage purposes. Both Aspen Plus 9.0 and EES are employed as software tools for the system modeling and simulation. The system is designed to achieve high Hydrogen production rate of 455.1 kg/h. The overall energy and exergy efficiencies of the hybrid system are 49% and 48.2%, respectively. Some additional results about the system performance are obtained, presented and discussed in the paper.
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industrial heat recovery from a steel furnace for the cogeneration of electricity and Hydrogen with the copper chlorine cycle
Energy Conversion and Management, 2018Co-Authors: H Ishaq, Ibrahim Dincer, G F NatererAbstract:Abstract A novel integrated system for the production of Hydrogen at a high pressure utilizing steel furnace waste heat is presented and analyzed in this paper. The system utilizes a hybrid thermochemical copper-chlorine (Cu-Cl) cycle. This study integrates the industrial waste heat source with the thermochemical Cu-Cl cycle combined with a Hydrogen Compression system. The electrical energy required by the system is provided by a supporting Rankine cycle. The Hydrogen Compression system compresses Hydrogen to a pressure of 750 bars. The integrated system is simulated with Aspen Plus software. Energy and exergy analyses are performed for the integrated system. Results from the simulations are presented and discussed. The overall energy efficiency is 38.2% and overall exergy efficiency is found to be 39.8%.
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analysis and assessment of a Hydrogen production plant consisting of coal gasification thermochemical water decomposition and Hydrogen Compression systems
Energy Conversion and Management, 2018Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A novel Hydrogen production plant is proposed, including a thermochemical water decomposition cycle, a pressurized entrained flow gasifier, a water gas shift membrane reactor, a cryogenic air separation unit, a Hydrogen-fueled combined cycle for power production and a Hydrogen Compression system. The syngas produced by the pressurized entrained flow gasifier undergoes the shift reaction in the water gas shift membrane reactor. The stripping of Hydrogen is done simultaneously with the shift reaction in the water gas shift membrane reactor to capture more Hydrogen and increase the shift reaction conversion percentage. The remaining syngas is combusted in the Brayton cycle and power is produced through Brayton cycle gas turbine. The hot exhausts exiting the Brayton cycle gas turbine goes to the heat recovery steam generation unit where steam is produced. The generated steam goes to the copper-chlorine cycle to produce Hydrogen. Part of the power generated by the Brayton cycle is used for the electrolysis reactor in the copper-chlorine cycle. Then, a small part of the Hydrogen produced passes to the combined cycle to overcome the needed work rate by the components in the plant. The remaining larger portion of the Hydrogen produced goes to the Compression system to compress Hydrogen to 700 bar for storage. The Hydrogen production plant is developed and modeled in the Aspen Plus software package. Energy and exergy analyses are performed on the Hydrogen production integrated system. The overall energy and exergy efficiencies of the proposed Hydrogen production plant are found to be 51.3% and 47.6% respectively.
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energy and exergy analyses of a solar based Hydrogen production and Compression system
International Journal of Hydrogen Energy, 2017Co-Authors: Hasan Ozcan, Ibrahim DincerAbstract:Abstract In this study, a solar thermal based integrated system with a supercritical-CO 2 (sCO 2 ) gas turbine (GT) cycle, a four-step Mg–Cl cycle and a five-stage Hydrogen Compression plant is developed, proposed for applications and analyzed thermodynamically. The solar data for the considered solar plant are taken for Greater Toronto Area (GTA) by considering both daily and yearly data. A molten salt storage is considered for the system in order to work without interruption when the sun is out. The power and heat from the solar and sCO 2 -GT subsystems are introduced to the Mg–Cl cycle to produce Hydrogen at four consecutive steps. After the internal heat recovery is accomplished, the heating process at required temperature level is supplied by the heat exchanger of the solar plant. The Hydrogen produced from the Mg–Cl cycle is compressed up to 700 bar by using a five-stage Compression with intercooling and required Compression power is compensated by the sCO 2 -GT cycle. The total energy and exergy inputs to the integrated system are found to be 1535 MW and 1454 MW, respectively, for a 1 kmol/s Hydrogen producing plant. Both energy and exergy efficiencies of the overall system are calculated as 16.31% and 17.6%, respectively. When the energy and exergy loads of the receiver are taken into account as the main inputs, energy and exergy efficiencies become 25.1%, and 39.8%, respectively. The total exergy destruction within the system is found to be 1265 MW where the solar field contains almost 64% of the total irreversibility with a value of ∼811 MW.
Marc A Rosen - One of the best experts on this subject based on the ideXlab platform.
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analysis and assessment of a Hydrogen production plant consisting of coal gasification thermochemical water decomposition and Hydrogen Compression systems
Energy Conversion and Management, 2018Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A novel Hydrogen production plant is proposed, including a thermochemical water decomposition cycle, a pressurized entrained flow gasifier, a water gas shift membrane reactor, a cryogenic air separation unit, a Hydrogen-fueled combined cycle for power production and a Hydrogen Compression system. The syngas produced by the pressurized entrained flow gasifier undergoes the shift reaction in the water gas shift membrane reactor. The stripping of Hydrogen is done simultaneously with the shift reaction in the water gas shift membrane reactor to capture more Hydrogen and increase the shift reaction conversion percentage. The remaining syngas is combusted in the Brayton cycle and power is produced through Brayton cycle gas turbine. The hot exhausts exiting the Brayton cycle gas turbine goes to the heat recovery steam generation unit where steam is produced. The generated steam goes to the copper-chlorine cycle to produce Hydrogen. Part of the power generated by the Brayton cycle is used for the electrolysis reactor in the copper-chlorine cycle. Then, a small part of the Hydrogen produced passes to the combined cycle to overcome the needed work rate by the components in the plant. The remaining larger portion of the Hydrogen produced goes to the Compression system to compress Hydrogen to 700 bar for storage. The Hydrogen production plant is developed and modeled in the Aspen Plus software package. Energy and exergy analyses are performed on the Hydrogen production integrated system. The overall energy and exergy efficiencies of the proposed Hydrogen production plant are found to be 51.3% and 47.6% respectively.
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development and assessment of a new solar heliostat field based system using a thermochemical water decomposition cycle integrated with Hydrogen Compression
Solar Energy, 2017Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A new Hydrogen production plant that produces Hydrogen at high pressures is proposed. The proposed plant utilizes an electrical and thermochemical hybrid water decomposition cycle. The source of thermal energy for Hydrogen production plant is a heliostat-based solar farm with a generation capacity of 1 MWe. The aim of this article is to integrate the thermochemical hybrid water decomposition cycle with the heliostat solar farm and with a Hydrogen Compression system. The plant electrical energy requirement is covered by the supporting Rankine cycle, which provides the required electrical Compression power. The produced Hydrogen is compressed to 700 bar for usage and storage purposes. The Hydrogen production plant is modeled and simulated with Aspen Plus software except for the solar farm, which is developed with engineering equation solver software. Both energy and exergy analyses are performed of the Hydrogen production plant, and its overall energy and exergy efficiencies are found to be 12.6% and 20.7% respectively. The energy and exergy efficiencies of the proposed and simulated five-step thermochemical water-decomposition cycle are obtained to be 38.2% and 89.4%, respectively.
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performance analysis of a supercritical water cooled nuclear reactor integrated with a combined cycle a cu cl thermochemical cycle and a Hydrogen Compression system
Applied Energy, 2017Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A novel integration is proposed and analyzed of a thermochemical water decomposition cycle with a supercritical water-cooled nuclear reactor, a combined cycle, and a Hydrogen Compression system. The supercritical water-cooled reactor in the integrated system has been investigated extensively in Canada. The integrated system uses a Compression system to compress the product Hydrogen. The Hydrogen is produced via a hybrid thermochemical and electrical water decomposition cycle that utilizes the chemical couple of copper and chlorine. The integrated system is modeled and simulated on Aspen Plus, except for the steam circuit, which is simulated on Aspen Hysys. The Hydrogen production rate from the proposed system is 3.56 kg/s. Both energy and exergy analyses are performed of the integrated system, and its overall energy and exergy efficiencies are, in this regard, found to be 16.9% and 27.8%, respectively.
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development and assessment of a novel integrated nuclear plant for electricity and Hydrogen production
Energy Conversion and Management, 2017Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A novel nuclear-based integrated system for electrical power and compressed Hydrogen production is proposed. The Hydrogen is produced through the four-step Cu-Cl cycle for water decomposition. A Rankine cycle is used to generate the power, part of which is used for the electrolysis step in the hybrid thermochemical water decomposition cycle and the Hydrogen Compression system. In the proposed design of the four-step thermochemical and electrical water decomposition cycle, only the hydrolysis and the oxygen production reactors receive thermal energy from the nuclear reactor. The nuclear thermal energy is delivered to the integrated system in the form of a supercritical fluid. The nuclear reactor, which is based on the supercritical water-cooled reactor, is responsible for delivering the thermal energy to the system, which is simulated using Aspen Plus and assessed with energy and exergy analyses. It is determined that the energy and the exergy efficiencies of the proposed system are 31.6% and 56.2% respectively, and that the integrated system is able to produce 2.02 kg/s of highly compressed Hydrogen and 553 MW of electrical power.
Evangelos I Gkanas - One of the best experts on this subject based on the ideXlab platform.
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numerical analysis of candidate materials for multi stage metal hydride Hydrogen Compression processes
Renewable Energy, 2017Co-Authors: Evangelos I Gkanas, Martin KhzouzAbstract:A numerical study on multistage metal hydride Hydrogen Compression (MHHC) systems is presented and analyzed. Multistage MHHC systems use a combination of different materials to increase the final Compression ratio at the end of the Compression process. In the current work a numerical model is proposed to describe the operation of a complete three-stage MHHC cycle, which can be divided in seven steps (for a three-stage Compression system): first stage Hydrogenation process, sensible heating of first stage, coupling process between the first and the second stage, sensible heating of the second stage, second coupling with the upcoming sensible heating of the third stage material and finally the delivery of high pressure Hydrogen to a high pressure Hydrogen tank. Three scenarios concerning the combination of different materials for the Compression stages are introduced and analyzed in terms of maximum Compression ratio, cycle time and energy consumption. According to the results, the combination of LaNi5 (stage 1), MmNi4.6Al0.4 (stage 2) and a novel synthesized AB2-Laves phase intermetallic (stage 3) present a Compression ratio 22:1 while operating between 20 and 130 °C.
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efficient Hydrogen storage in up scale metal hydride tanks as possible metal hydride Compression agents equipped with aluminium extended surfaces
International Journal of Hydrogen Energy, 2016Co-Authors: Evangelos I Gkanas, David M Grant, Alastair D Stuart, Martin Khzouz, Kandavel Manickam, Gavin S WalkerAbstract:In the current work, a three-dimensional computational study regarding coupled heat and mass transfer during both the Hydrogenation and deHydrogenation process in upscale cylindrical metal hydride reactors is presented, analysed and optimized. Three different heat management scenarios were examined at the degree to which they provide improved system performance. The three scenarios were: 1) plain embedded cooling/heating tubes, 2) transverse finned tubes and 3) longitudinal finned tubes. A detailed optimization study was presented leading to the selection of the optimized geometries. In addition, two different types of hydrides, LaNi5 and an AB2-type intermetallic were studied as possible candidate materials for using as the first stage alloys in a two-stage metal hydride Hydrogen Compression system. As extracted from the above results, it is clear that the case of using a vessel equipped with 16 longitudinal finned tubes is the most efficient way to enhance the Hydrogenation kinetics when using both LaNi5 and the AB2-alloy as the hydride agents. When using LaNi5 as the operating hydride the case of the vessel equipped with 60 embedded cooling tubes presents the same kinetic behaviour with the case of the vessel equipped with 12 longitudinal finned tubes, so in that way, by using extended surfaces to enhance the heat exchange can reduce the total number of tubes from 60 to 12. For the case of using the AB2-type material as the operating hydride the performance of the extended surfaces is more dominant and effective compared to the case of using the embedded tubes, especially for the case of the longitudinal extended surfaces.
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numerical study on a two stage metal hydride Hydrogen Compression system
Journal of Alloys and Compounds, 2015Co-Authors: Evangelos I Gkanas, David M Grant, Alastair D Stuart, Carol Eastwick, David Book, Shahrouz Nayebossadri, Lydia Pickering, Gavin S WalkerAbstract:A multistage Metal Hydride Hydrogen Compression (MHHC) system uses a combination of hydride materials in order to increase the total Compression ratio, whilst maximizing the Hydrogenation rate from the supply pressure at each stage. By solving the coupled heat, mass and momentum conservation equations simultaneously the performance of a MHHC system can be predicted. In the current work a numerical model is proposed to describe the operation of a complete Compression cycle. Four different MHHC systems are examined in terms of maximum Compression ratio, cycle time and energy consumption and it was found that the maximum Compression ratio achieved was 22:1 when operating LaNi5 (AB5-type) and a Zr–V–Mn–Nb (AB2-type intermetallic) as the first and second stage alloys respectively in the temperature range of 20°C (Hydrogenation) to 130°C (deHydrogenation).
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high temperature activated ab2 nanopowders for metal hydride Hydrogen Compression
International Journal of Energy Research, 2014Co-Authors: E D Koultoukis, Evangelos I Gkanas, Sofoklis S Makridis, C N Christodoulou, Daniel Fruchart, A K StubosAbstract:SUMMARY A reliable process for compressing Hydrogen and for removing all contaminants is that of the metal hydride thermal Compression. The use of metal hydride technology in Hydrogen Compression applications, though, requires thorough structural characterization of the alloys and investigation of their sorption properties. The samples have been synthesized by induction – levitation melting and characterized by Rietveld analysis of the X-ray diffraction patterns. Volumetric pressure–composition isotherm measurements have been conducted at 20, 60 and 90 °C, in order to investigate the maximum pressure that can be reached from the selected alloys using water of 90°C. Experimental evidence shows that the maximum Hydrogen uptake is low since all the alloys are consisted of Laves phases, but it is of minor importance if they have fast kinetics, given a constant volumetric Hydrogen flow. Hysteresis is almost absent while all the alloys release nearly all the absorbed Hydrogen during desorption. Due to hardware restrictions, the maximum Hydrogen pressure for the measurements was limited at 100 bars. Practically, the maximum pressure that can be reached from the last alloy is more than 150 bars. Copyright © 2014 John Wiley & Sons, Ltd.
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high temperature activated ab2 nanopowders for metal hydride Hydrogen Compression
arXiv: Materials Science, 2013Co-Authors: E D Koultoukis, Evangelos I Gkanas, Sofoklis S Makridis, C N Christodoulou, Daniel Fruchart, A K StubosAbstract:A reliable process for compressing Hydrogen and for removing all contaminants is that of the metal hydride thermal Compression. The use of metal hydride technology in Hydrogen Compression applications though, requires thorough structural characterization of the alloys and investigation of their sorption properties. The samples have been synthesized by induction - levitation melting and characterized by Rietveld analysis of the X-Ray diffraction (XRD) patterns. Volumetric PCI (Pressure-Composition Isotherm) measurements have been conducted at 20, 60 and 90 oC, in order to investigate the maximum pressure that can be reached from the selected alloys using water of 90oC. Experimental evidence shows that the maximum Hydrogen uptake is low since all the alloys are consisted of Laves phases, but it is of minor importance if they have fast kinetics, given a constant volumetric Hydrogen flow. Hysteresis is almost absent while all the alloys release nearly all the absorbed Hydrogen during desorption. Due to hardware restrictions, the maximum Hydrogen pressure for the measurements was limited at 100 bars. Practically, the maximum pressure that can be reached from the last alloy is more than 150 bars.
Maan Alzareer - One of the best experts on this subject based on the ideXlab platform.
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analysis and assessment of a Hydrogen production plant consisting of coal gasification thermochemical water decomposition and Hydrogen Compression systems
Energy Conversion and Management, 2018Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A novel Hydrogen production plant is proposed, including a thermochemical water decomposition cycle, a pressurized entrained flow gasifier, a water gas shift membrane reactor, a cryogenic air separation unit, a Hydrogen-fueled combined cycle for power production and a Hydrogen Compression system. The syngas produced by the pressurized entrained flow gasifier undergoes the shift reaction in the water gas shift membrane reactor. The stripping of Hydrogen is done simultaneously with the shift reaction in the water gas shift membrane reactor to capture more Hydrogen and increase the shift reaction conversion percentage. The remaining syngas is combusted in the Brayton cycle and power is produced through Brayton cycle gas turbine. The hot exhausts exiting the Brayton cycle gas turbine goes to the heat recovery steam generation unit where steam is produced. The generated steam goes to the copper-chlorine cycle to produce Hydrogen. Part of the power generated by the Brayton cycle is used for the electrolysis reactor in the copper-chlorine cycle. Then, a small part of the Hydrogen produced passes to the combined cycle to overcome the needed work rate by the components in the plant. The remaining larger portion of the Hydrogen produced goes to the Compression system to compress Hydrogen to 700 bar for storage. The Hydrogen production plant is developed and modeled in the Aspen Plus software package. Energy and exergy analyses are performed on the Hydrogen production integrated system. The overall energy and exergy efficiencies of the proposed Hydrogen production plant are found to be 51.3% and 47.6% respectively.
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development and assessment of a new solar heliostat field based system using a thermochemical water decomposition cycle integrated with Hydrogen Compression
Solar Energy, 2017Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A new Hydrogen production plant that produces Hydrogen at high pressures is proposed. The proposed plant utilizes an electrical and thermochemical hybrid water decomposition cycle. The source of thermal energy for Hydrogen production plant is a heliostat-based solar farm with a generation capacity of 1 MWe. The aim of this article is to integrate the thermochemical hybrid water decomposition cycle with the heliostat solar farm and with a Hydrogen Compression system. The plant electrical energy requirement is covered by the supporting Rankine cycle, which provides the required electrical Compression power. The produced Hydrogen is compressed to 700 bar for usage and storage purposes. The Hydrogen production plant is modeled and simulated with Aspen Plus software except for the solar farm, which is developed with engineering equation solver software. Both energy and exergy analyses are performed of the Hydrogen production plant, and its overall energy and exergy efficiencies are found to be 12.6% and 20.7% respectively. The energy and exergy efficiencies of the proposed and simulated five-step thermochemical water-decomposition cycle are obtained to be 38.2% and 89.4%, respectively.
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performance analysis of a supercritical water cooled nuclear reactor integrated with a combined cycle a cu cl thermochemical cycle and a Hydrogen Compression system
Applied Energy, 2017Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A novel integration is proposed and analyzed of a thermochemical water decomposition cycle with a supercritical water-cooled nuclear reactor, a combined cycle, and a Hydrogen Compression system. The supercritical water-cooled reactor in the integrated system has been investigated extensively in Canada. The integrated system uses a Compression system to compress the product Hydrogen. The Hydrogen is produced via a hybrid thermochemical and electrical water decomposition cycle that utilizes the chemical couple of copper and chlorine. The integrated system is modeled and simulated on Aspen Plus, except for the steam circuit, which is simulated on Aspen Hysys. The Hydrogen production rate from the proposed system is 3.56 kg/s. Both energy and exergy analyses are performed of the integrated system, and its overall energy and exergy efficiencies are, in this regard, found to be 16.9% and 27.8%, respectively.
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development and assessment of a novel integrated nuclear plant for electricity and Hydrogen production
Energy Conversion and Management, 2017Co-Authors: Maan Alzareer, Ibrahim Dincer, Marc A RosenAbstract:Abstract A novel nuclear-based integrated system for electrical power and compressed Hydrogen production is proposed. The Hydrogen is produced through the four-step Cu-Cl cycle for water decomposition. A Rankine cycle is used to generate the power, part of which is used for the electrolysis step in the hybrid thermochemical water decomposition cycle and the Hydrogen Compression system. In the proposed design of the four-step thermochemical and electrical water decomposition cycle, only the hydrolysis and the oxygen production reactors receive thermal energy from the nuclear reactor. The nuclear thermal energy is delivered to the integrated system in the form of a supercritical fluid. The nuclear reactor, which is based on the supercritical water-cooled reactor, is responsible for delivering the thermal energy to the system, which is simulated using Aspen Plus and assessed with energy and exergy analyses. It is determined that the energy and the exergy efficiencies of the proposed system are 31.6% and 56.2% respectively, and that the integrated system is able to produce 2.02 kg/s of highly compressed Hydrogen and 553 MW of electrical power.
G F Naterer - One of the best experts on this subject based on the ideXlab platform.
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exergy and cost analyses of waste heat recovery from furnace cement slag for clean Hydrogen production
Energy, 2019Co-Authors: H Ishaq, Ibrahim Dincer, G F NatererAbstract:This paper examines the performance and viability of a cement slag waste heat recovery system combined with a thermochemical copper-chlorine cycle for Hydrogen production combined with Hydrogen Compression and a reheat Rankine cycle. The waste heat from the cement slag is recovered as a heat source for high-temperature reactions in the copper-chlorine cycle. The clean Hydrogen production from waste heat recovery is examined with respect to both energy and exergy efficiencies. The integrated system is simulated and modeled in Aspen Plus. The multigeneration system utilizes the industrial waste heat and significantly reduces operating costs from the waste heat recovery. The overall energy efficiency of the integrated system is obtained as 32.5% while the corresponding exergy efficiency becomes 31.8%.
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development and assessment of a solar wind and Hydrogen hybrid trigeneration system
International Journal of Hydrogen Energy, 2018Co-Authors: H Ishaq, Ibrahim Dincer, G F NatererAbstract:Abstract A solar-wind hybrid trigeneration system is proposed and analyzed thermodynamically through energy and exergy approaches in this paper. Hydrogen, electricity and heat are the useful products generated by the hybrid system. The system consists of a solar heliostat field, a wind turbine and a thermochemical copper-chlorine (Cu-Cl) cycle for Hydrogen production linked with a Hydrogen Compression system. A solar heliostat field is employed as a source of thermal energy while the wind turbine is used to generate electricity. Electric power harvested by the wind turbine is supplied to the electrolyzer and compressors and provides an additional excess of electricity. Hydrogen produced by the thermochemical copper-chlorine (Cu-Cl) cycle is compressed in a Hydrogen Compression system for storage purposes. Both Aspen Plus 9.0 and EES are employed as software tools for the system modeling and simulation. The system is designed to achieve high Hydrogen production rate of 455.1 kg/h. The overall energy and exergy efficiencies of the hybrid system are 49% and 48.2%, respectively. Some additional results about the system performance are obtained, presented and discussed in the paper.
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industrial heat recovery from a steel furnace for the cogeneration of electricity and Hydrogen with the copper chlorine cycle
Energy Conversion and Management, 2018Co-Authors: H Ishaq, Ibrahim Dincer, G F NatererAbstract:Abstract A novel integrated system for the production of Hydrogen at a high pressure utilizing steel furnace waste heat is presented and analyzed in this paper. The system utilizes a hybrid thermochemical copper-chlorine (Cu-Cl) cycle. This study integrates the industrial waste heat source with the thermochemical Cu-Cl cycle combined with a Hydrogen Compression system. The electrical energy required by the system is provided by a supporting Rankine cycle. The Hydrogen Compression system compresses Hydrogen to a pressure of 750 bars. The integrated system is simulated with Aspen Plus software. Energy and exergy analyses are performed for the integrated system. Results from the simulations are presented and discussed. The overall energy efficiency is 38.2% and overall exergy efficiency is found to be 39.8%.
