Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Exergoeconomic"”.
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Exergoeconomic analysis and optimization of organic Rankine cycles
… exergy efficiency as the objective function. An exergoeconomic analysis is performed to predict the cost rate of electricity of the system and is compared to current contract rates from the Ontario Power Authority. Dimethyl ether shows promising results with a system exergy efficiency of 11.76% …
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Energy, exergy and exergoeconomic analyses of gas-turbine based systems
… temperature to 10oC. Furthermore, exergy and exergoeconomic analyses are conducted to obtain that the largest exergy destruction occurs in the combustion chamber, followed by the turbine. The optimization results demonstrate that CO2 emissions can be reduced by increasing the exergetic …
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Exergy and exergoeconomic analyses and optimization of thermal management systems in electric and hybrid electric vehicles
… in order to evaluate the TMS with respect to exergoeconomic principles and provide corresponding recommendations. Environmental impact correlations are developed, along with a cradle-to-grave life cycle assessment (LCA), to highlight components causing significant environmental impact, and to …
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Investigation of a novel high temperature solid oxide electrolyzer for solar hydrogen production
… Electrolysis (SOE) stack, are investigated. The exergoeconomic aspects of utilizing SOE plant at a large-scale is also considered through a detailed exergoeconomic analysis. Last, the models are used to examine the SOE performance sensitivity to variation in operating parameters and conduct an …
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Investigation and assessment of the integrated copper chlorine cycle for hydrogen production with a new separation process
… the energy and exergy, thermal management, exergoeconomic, exergoenvironmental, and multi-objective optimization approaches for performance assessment. A new approach for the anolyte separation step of the integrated cycle is also investigated and the flash vaporization process is proposed …
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Design, analysis and optimization of novel photo electrochemical hydrogen production systems
… literature survey, thermodynamic modeling, exergoeconomic modeling, electrochemical modeling, statistical modeling and preliminary results of the photochemical research. The process selected for the present study is known as the “chloralkali process”. The main objective of this research is, …
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Dynamic exergy-based methods for improving the operation of building energy systems
… systems. Moreover, the dynamic formulation of exergoeconomic analysis, taking into account the stored/discharged costs in different system components at different times, is also presented for the first time in the current research study. As a general rule of thumb, only between 15% to 25% of …
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Experimental design, analysis and improvement of a Marnoch Heat Engine with heat recovery.
… 52 g CO2-quivalent per kWh. Results from the exergoeconomic analysis are used to determine the required changes in MHE design parameters for the purpose of improving the cost effectiveness of the overall system. Energy and exergy efficiencies of the MHE are evaluated under various operating …
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Development, analysis and performance assessment of net zero energy house systems.
… are varied to note their effect on efficiencies. Exergoeconomic and exergoenvironmental analyses are performed to determine exergy destructions and greenhouse gas emission costs. In addition, design variables are optimized to maximize renewable energy use while reducing exergy destruction and …
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Integrated heat pump options for heat upgrading in Cu-Cl cycle for hydrogen production
… A comprehensive energetic, exergetic, and exergoeconomic assessment is made to understand the heat pump performance and costs. The CuCl-mercury heat pump had an overall energetic coefficient of performance of 1.93 and an exergetic performance of 1.25. Its total estimated cost is …
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Investigation of sustainable hydrogen production from steam biomass gasification
… comprehensive analysis by using thermodynamic, exergoeconomic and optimization analyses. Despite details specific to the gasifier, in general, there is a special need to theoretically address the gasifier that gasifies biomass to produce hydrogen. This further study of gasification aspects …
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Development and assessment of integrated energy systems with ammonia synthesis and fuel cells
… Comprehensive thermodynamic, electrochemical, exergoeconomic and multi-objective optimization studies are also performed on the developed systems to assess their performances. The peak daily ammonia and hydrogen production amounts are found to reach 98045.8 kg and 19887.6 kg, respectively. The …
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Analysis, assessment and optimization of integrated solar energy systems for multigeneration
… of more improvement in their performances, exergoeconomic and environmental analyses and system optimization are performed. Solar dish based integrated system considering biomass-SOFC as alternative for solar unavailability is the first studied system. The system performance is assessed …
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Investigation of energy storage options for sustainable energy systems.
… analysis from the points of energy, exergy, and exergoeconomics. The main objective of this thesis is to investigate energy storage options for sustainable energy systems. A technology description and illustration of concerns regarding each system is presented. Moreover, the possibility of …
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Development and assessment of integrated powering systems with alternative fuel choices for clean transportation
… methods: thermodynamic, exergoenvironmental, and exergoeconomic analyses. Besides, the multi-objective particle swarm optimization (MOPSO) is applied for different operating conditions to choose the optimal design characteristic of the transportation systems. For aviation transportation, the base …
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Conceptual development and analysis of sustainable powering options for hybrid vehicles
… available data from the literature. Moreover, exergoeconomic analysis has been carried out for the proposed systems. The Genetic Algorithm is utilized to optimize the introduced systems to achieve the optimum performance with the least possible cost for each system. For the same power output of …
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Experimental investigation of an integrated solar driven wastewater treatment system for trigeneration applications
… of the system is determined to be 0.28 $/h from exergoeconomic analysis results. After 40 minutes of the operation time of the PEC reactor under 2.3V of practical cell potential and 60°C of cell temperature, the reactor produces 22.6 mg of hydrogen and removes 87% of COD. The proposed TEG unit …
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Design, analysis and experimental investigation of Cu-Cl based integrated systems
… cycle. The electrochemical, energy, exergy and exergoeconomic analyses of the hybrid reactors are carried out to observe the effects of variation in different operating parameters on the performance of the system. The comparative energy and exergy analyses of two solar-based integrated systems …
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Optimisation of collector locations and pipe networks for dish–Rankine power plants
… and installation costs are estimated using an exergoeconomic model. The optimal network tree is then found for a 10 MWe collector field and a 20 MWe network. Extra east-west pipe branches correspond to a lower cost for the 20 MWe field, despite the longer overall network pipe length. Exergy …
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Optimisation of collector locations and pipe networks for dish–Rankine power plants
… and installation costs are estimated using an exergoeconomic model. The optimal network tree is then found for a 10 MWe collector field and a 20 MWe network. Extra east-west pipe branches correspond to a lower cost for the 20 MWe field, despite the longer overall network pipe length. Exergy …
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