The Experts below are selected from a list of 55164 Experts worldwide ranked by ideXlab platform
Mohammad S Alam - One of the best experts on this subject based on the ideXlab platform.
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economics of hydrogen production and utilization strategies for the optimal operation of a grid parallel pem fuel cell power plant
International Journal of Hydrogen Energy, 2010Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper integrates the hydrogen production and utilization strategies with an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen management strategies. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of hydrogen management strategies on the operational cost of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE PES Power Systems Conference and Exposition, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the PEM fuel cell power plants (FCPP). The study includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy which yields a minimum operating cost. The optimal operational strategy is achieved through estimating the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate effectiveness of the proposed approach
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE Transactions on Power Systems, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the proton exchange membrane (PEM) fuel cell power plants (FCPP). This paper includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy that yields a minimum operating cost. The optimal operational strategy is achieved through the estimation of the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate the effectiveness of the proposed approach
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impact of hydrogen production on optimal economic operation of a grid parallel pem fuel cell power plant
Journal of Power Sources, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper presents an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of producing hydrogen on the operational strategies of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
M Y Elsharkh - One of the best experts on this subject based on the ideXlab platform.
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economics of hydrogen production and utilization strategies for the optimal operation of a grid parallel pem fuel cell power plant
International Journal of Hydrogen Energy, 2010Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper integrates the hydrogen production and utilization strategies with an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen management strategies. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of hydrogen management strategies on the operational cost of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE PES Power Systems Conference and Exposition, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the PEM fuel cell power plants (FCPP). The study includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy which yields a minimum operating cost. The optimal operational strategy is achieved through estimating the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate effectiveness of the proposed approach
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE Transactions on Power Systems, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the proton exchange membrane (PEM) fuel cell power plants (FCPP). This paper includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy that yields a minimum operating cost. The optimal operational strategy is achieved through the estimation of the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate the effectiveness of the proposed approach
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impact of hydrogen production on optimal economic operation of a grid parallel pem fuel cell power plant
Journal of Power Sources, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper presents an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of producing hydrogen on the operational strategies of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
A Rahman - One of the best experts on this subject based on the ideXlab platform.
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economics of hydrogen production and utilization strategies for the optimal operation of a grid parallel pem fuel cell power plant
International Journal of Hydrogen Energy, 2010Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper integrates the hydrogen production and utilization strategies with an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen management strategies. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of hydrogen management strategies on the operational cost of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE PES Power Systems Conference and Exposition, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the PEM fuel cell power plants (FCPP). The study includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy which yields a minimum operating cost. The optimal operational strategy is achieved through estimating the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate effectiveness of the proposed approach
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE Transactions on Power Systems, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the proton exchange membrane (PEM) fuel cell power plants (FCPP). This paper includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy that yields a minimum operating cost. The optimal operational strategy is achieved through the estimation of the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate the effectiveness of the proposed approach
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impact of hydrogen production on optimal economic operation of a grid parallel pem fuel cell power plant
Journal of Power Sources, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper presents an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of producing hydrogen on the operational strategies of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
Mugdesem Tanrioven - One of the best experts on this subject based on the ideXlab platform.
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economics of hydrogen production and utilization strategies for the optimal operation of a grid parallel pem fuel cell power plant
International Journal of Hydrogen Energy, 2010Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper integrates the hydrogen production and utilization strategies with an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen management strategies. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of hydrogen management strategies on the operational cost of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE PES Power Systems Conference and Exposition, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the PEM fuel cell power plants (FCPP). The study includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy which yields a minimum operating cost. The optimal operational strategy is achieved through estimating the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate effectiveness of the proposed approach
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a study of cost optimized operation of a grid parallel pem fuel cell power plant
IEEE Transactions on Power Systems, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:A cost-based approach is developed to study the economics of operation of the proton exchange membrane (PEM) fuel cell power plants (FCPP). This paper includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The cost-based approach is used to determine the optimal operational strategy that yields a minimum operating cost. The optimal operational strategy is achieved through the estimation of the hourly generated power, the amount of Thermal power recovered from the FCPP to satisfy the Thermal load, the amount of power trade with the local grid, and the amount of hydrogen that can be generated from the FCPP. An evolutionary programming-based technique is used to determine the optimal operational strategy. The strategy is tested using electrical and Thermal load profiles. Results are encouraging and indicate the effectiveness of the proposed approach
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impact of hydrogen production on optimal economic operation of a grid parallel pem fuel cell power plant
Journal of Power Sources, 2006Co-Authors: M Y Elsharkh, Mugdesem Tanrioven, A Rahman, Mohammad S AlamAbstract:This paper presents an economic model of a PEM fuel cell power plant (FCPP). The model includes the operational cost, Thermal Recovery, power trade with the local grid, and hydrogen production. The model is used to determine the optimal operational strategy, which yields the minimum operating cost. The optimal operational strategy is achieved through estimation of the following: hourly generated power, Thermal power recovered from the FCPP, power trade with the local grid, and hydrogen production. An evolutionary programming-based technique is used to solve for the optimal operational strategy. The model is tested using different seasonal load demands. The results illustrate the impact of producing hydrogen on the operational strategies of the FCPP when subjected to seasonal load variation. Results are encouraging and indicate viability of the proposed model.
Jalal Abedi - One of the best experts on this subject based on the ideXlab platform.
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mechanistic modelling of non equilibrium interphase mass transfer during solvent aided Thermal Recovery processes of bitumen and heavy oil
Fuel, 2019Co-Authors: Abdullah Algawfi, Hossein Nourozieh, Ehsan Ranjbar, Hassan Hassanzadeh, Jalal AbediAbstract:Abstract One of the important mechanisms involved in solvent-aided Thermal Recovery processes is interphase-mass transfer phenomenon. However, in current reservoir simulation models a local equilibrium is commonly assumed such that a simulation grid block is at instantaneous equilibrium. The assumption of local equilibrium often fails at larger scales or in situations where flow velocities are considerable compared to that of mass or heat transfer which results in significant discrepancies between reservoir simulation predictions and field scale observations. In this work, solvent-aided gravity drainage of bitumen was simulated with propane as a solvent. The effect of non-equilibrium mass transfer was included in the model to simulate the process using a kinetic approach. The results show that the assumption of the local instantaneous equilibrium results in lower oil Recovery for the typical field scale simulation models. The analysis shows that this mismatch can be mitigated fairly through the inclusion of the non-equilibrium interphase mass transfer. Correlations for the non-equilibrium interphase mass transfer coefficients for propane/bitumen mixture were developed which can be used as guidelines for field scale modeling of solvent-aided Thermal Recovery processes.
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a new analytical model for estimation of the molecular diffusion coefficient of gaseous solvents in bitumen effect of swelling
Fuel, 2018Co-Authors: Nasser Sabet, Hassan Hassanzadeh, Mohammad Khalifi, Mohsen Zirrahi, Jalal AbediAbstract:Abstract Diffusion of gaseous solvents in bitumen is one of the imperative factors in studying solvent-aided Thermal Recovery processes. Experiments have shown significant swelling of bitumen upon diffusion of some gaseous solvents. Among different techniques for measurement of diffusion coefficient, Pressure Decay methods are the most popular. In one approach, liquid is placed in a cell overlaid by a gas cap. Diffusion of gas into the liquid at constant cell pressure can be achieved by continuously supplying the makeup gas into the gas cap. Different analytical and numerical models to estimate the molecular diffusion based on the mass of the injected gas have been proposed in the literature. However, there are two drawbacks associated with the previous models: 1) most of these models have been developed based on a no-swelling assumption while experiments have shown the significant swelling of bitumen upon diffusion of some solvents; 2) the models that incorporate the effect of swelling are numerical or semi-analytical and they are computationally-expensive, not straightforward, and prone to numerical error. Therefore, there is need for a simple analytical model that not only includes the swelling effect, but also is easy to implement. This study presents a novel analytical model obtained based on similarity solution along with a simple graphical method to estimate diffusion coefficients of gases in liquids. The experimental data of a moving interface as a result of swelling is used as an input to the developed model to estimate the diffusion coefficient. The developed model is applied to the available data in the literature and the predicted diffusion coefficients are compared to the previously reported ones. Moreover, the presented model is used to interpret new experimental data of nC4-nC10 system to estimate the molecular diffusion coefficient. The developed model and the experimental data find applications in design and optimization of solvent-aided Thermal Recovery of bitumen and heavy oils.
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selection of efficient solvent in solvent aided Thermal Recovery of bitumen
Chemical Engineering Science, 2017Co-Authors: Nasser Sabet, Hassan Hassanzadeh, Jalal AbediAbstract:Abstract In solvent-assisted Thermal Recovery of bitumen, steam and solvent transfer their latent heat to the oil sands, mobilize the bitumen and co-condense on steam-bitumen interface. The mixing of heated bitumen with solvents further reduces its viscosity and the mobilized oil drains by gravity toward the production well. Co-injection of steam and solvent results in a gravitationally unstable diffusive boundary layer leading to convective dissolution of bitumen and solvent and thereby increases the oil Recovery. We present a linear stability analysis to study the growth of convective instabilities and determine the onset of convective dissolution and the initial wavelength of instabilities. The scaling relations obtained from the linear stability are used to find the optimum solvent for solvent-aided Thermal Recovery processes by taking into account the azeotropic nature of solvent and steam co-condensation. The results show that an n-alkane carbon number range between 7 and 9 leads to earlier onset of convective dissolution, which is in agreement with the results of reservoir simulations. This study provides a fast screening method for selection of efficient solvent for the solvent-aided Thermal Recovery processes. In addition, the predicted initial wavelengths of instabilities facilitates selection of the proper grid size in numerical simulation of solvent and steam Recovery processes.
