The Experts below are selected from a list of 39 Experts worldwide ranked by ideXlab platform
Arif Hepbasli - One of the best experts on this subject based on the ideXlab platform.
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Exergoeconomic analysis of geothermal district heating systems: A case study
Applied Thermal Engineering, 2007Co-Authors: Leyla Ozgener, Arif Hepbasli, Ibrahim Dincer, Marc A. RosenAbstract:An exergoeconomic study of geothermal district heating systems through mass, energy, Exergy and cost accounting analyses is reported and a case study is presented for the Salihli geothermal district heating system (SGDHS) in Turkey to illustrate the present method. The relations between capital costs and thermodynamic Losses for the system components are also investigated. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for the devices and the overall system, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. Furthermore, a parametric study is conducted to determine how the ratio of thermodynamic Loss rate to capital cost changes with reference temperature and to develop a correlation that can be used for practical analyses. The correlations may imply that devices in successful district heating systems such as the SGDHS are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic (cost) characteristics of the overall systems and their devices.
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Thermodynamic analysis of a geothermal district heating system
International Journal of Exergy, 2005Co-Authors: Leyla Ozgener, Arif Hepbasli, Ibrahim DincerAbstract:Thermoeconomic analysis is considered a useful tool for investigators in engineering and other disciplines due to its methodology based on the quantities Exergy, cost, energy and mass. This study deals with an investigation of capital costs and thermodynamic Losses for devices in the Balcova Geothermal District Heating Systems (BGDHS). Thermodynamic Loss rate-to-capital cost ratios are used for components and the overall system, and a systematic correlation is found between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. This correlation may imply that devices in successful district heating system are configured so as to achieve an overall optimal design, by balancing the thermodynamic (Exergy-based) and economic characteristics of the overall system and their devices. The results provide insights into the relations between thermodynamics and economics and help demonstrate the merits of Exergy analysis.
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Exergoeconomic analysis of a solar assisted ground-source heat pump greenhouse heating system
Applied Thermal Engineering, 2005Co-Authors: Onder Ozgener, Arif HepbasliAbstract:Abstract EXCEM analysis may prove useful to investigators in engineering and other disciplines due to the methodology are being based on the quantities Exergy, cost, energy and mass. The main objective of the present study is to investigate between capital costs and thermodynamic Losses for devices in solar assisted ground-source heat pump greenhouse heating system (SAGSHPGHS) with a 50 m vertical 32 mm nominal diameter U-bend ground heat exchanger. This system was designed and installed at the Solar Energy Institute, Ege University, Izmir, Turkey. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for components and the overall system, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. This correlation may imply that devices in successful air conditioning are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic characteristics of the overall system and its devices. The results may (i) provide useful insights into the relations between thermodynamics and economics, both in general and for SAGSHPGHS, (ii) help demonstrate the merits of second-law analysis. It is observed from the results that the maximum Exergy destructions in the system particularly occur due to the electrical, mechanical and isentropic efficiencies and emphasize the need for paying close attention to the selection of this type of equipment, since components of inferior performance can considerably reduce the overall performance of the system. In conjunction with this, the total Exergy Losses values are obtained to be from 0.010 kW to 0.480 kW for the system. As expected, the largest energy and Exergy Losses occur in the greenhouse and compressor. The ratio of thermodynamic Loss rate to capital cost values are obtained for a range from 0.035 to 1.125.
Onder Ozgener - One of the best experts on this subject based on the ideXlab platform.
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Exergoeconomic analysis of a solar assisted ground-source heat pump greenhouse heating system
Applied Thermal Engineering, 2005Co-Authors: Onder Ozgener, Arif HepbasliAbstract:Abstract EXCEM analysis may prove useful to investigators in engineering and other disciplines due to the methodology are being based on the quantities Exergy, cost, energy and mass. The main objective of the present study is to investigate between capital costs and thermodynamic Losses for devices in solar assisted ground-source heat pump greenhouse heating system (SAGSHPGHS) with a 50 m vertical 32 mm nominal diameter U-bend ground heat exchanger. This system was designed and installed at the Solar Energy Institute, Ege University, Izmir, Turkey. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for components and the overall system, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. This correlation may imply that devices in successful air conditioning are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic characteristics of the overall system and its devices. The results may (i) provide useful insights into the relations between thermodynamics and economics, both in general and for SAGSHPGHS, (ii) help demonstrate the merits of second-law analysis. It is observed from the results that the maximum Exergy destructions in the system particularly occur due to the electrical, mechanical and isentropic efficiencies and emphasize the need for paying close attention to the selection of this type of equipment, since components of inferior performance can considerably reduce the overall performance of the system. In conjunction with this, the total Exergy Losses values are obtained to be from 0.010 kW to 0.480 kW for the system. As expected, the largest energy and Exergy Losses occur in the greenhouse and compressor. The ratio of thermodynamic Loss rate to capital cost values are obtained for a range from 0.035 to 1.125.
Marc A. Rosen - One of the best experts on this subject based on the ideXlab platform.
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Exergoeconomic analysis of geothermal district heating systems: A case study
Applied Thermal Engineering, 2007Co-Authors: Leyla Ozgener, Arif Hepbasli, Ibrahim Dincer, Marc A. RosenAbstract:An exergoeconomic study of geothermal district heating systems through mass, energy, Exergy and cost accounting analyses is reported and a case study is presented for the Salihli geothermal district heating system (SGDHS) in Turkey to illustrate the present method. The relations between capital costs and thermodynamic Losses for the system components are also investigated. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for the devices and the overall system, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. Furthermore, a parametric study is conducted to determine how the ratio of thermodynamic Loss rate to capital cost changes with reference temperature and to develop a correlation that can be used for practical analyses. The correlations may imply that devices in successful district heating systems such as the SGDHS are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic (cost) characteristics of the overall systems and their devices.
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Exergoeconomic analysis of power plants operating on various fuels
Applied Thermal Engineering, 2003Co-Authors: Marc A. Rosen, Ibrahim DincerAbstract:The relation is investigated between capital costs and thermodynamic Losses for devices in modern coal-fired, oil-fired and nuclear electrical generating stations. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for station devices and the overall station, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. The possible existence is indicated of a correlation between the mean thermodynamic Loss rate-to-capital cost ratios for all of the devices in a station and the ratios for the overall station, when the ratio is based on total or internal Exergy Losses. This correlation may imply that devices in successful electrical generating stations are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic characteristics of the overall station and its devices. The results may (i) provide useful insights into the relations between thermodynamics and economics, both in general and for electrical generating stations, (ii) help demonstrate the merits of second-law analysis, and (iii) extend throughout the electrical utility sector.
Ibrahim Dincer - One of the best experts on this subject based on the ideXlab platform.
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Exergoeconomic analysis of geothermal district heating systems: A case study
Applied Thermal Engineering, 2007Co-Authors: Leyla Ozgener, Arif Hepbasli, Ibrahim Dincer, Marc A. RosenAbstract:An exergoeconomic study of geothermal district heating systems through mass, energy, Exergy and cost accounting analyses is reported and a case study is presented for the Salihli geothermal district heating system (SGDHS) in Turkey to illustrate the present method. The relations between capital costs and thermodynamic Losses for the system components are also investigated. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for the devices and the overall system, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. Furthermore, a parametric study is conducted to determine how the ratio of thermodynamic Loss rate to capital cost changes with reference temperature and to develop a correlation that can be used for practical analyses. The correlations may imply that devices in successful district heating systems such as the SGDHS are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic (cost) characteristics of the overall systems and their devices.
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Thermodynamic analysis of a geothermal district heating system
International Journal of Exergy, 2005Co-Authors: Leyla Ozgener, Arif Hepbasli, Ibrahim DincerAbstract:Thermoeconomic analysis is considered a useful tool for investigators in engineering and other disciplines due to its methodology based on the quantities Exergy, cost, energy and mass. This study deals with an investigation of capital costs and thermodynamic Losses for devices in the Balcova Geothermal District Heating Systems (BGDHS). Thermodynamic Loss rate-to-capital cost ratios are used for components and the overall system, and a systematic correlation is found between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. This correlation may imply that devices in successful district heating system are configured so as to achieve an overall optimal design, by balancing the thermodynamic (Exergy-based) and economic characteristics of the overall system and their devices. The results provide insights into the relations between thermodynamics and economics and help demonstrate the merits of Exergy analysis.
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Exergoeconomic analysis of power plants operating on various fuels
Applied Thermal Engineering, 2003Co-Authors: Marc A. Rosen, Ibrahim DincerAbstract:The relation is investigated between capital costs and thermodynamic Losses for devices in modern coal-fired, oil-fired and nuclear electrical generating stations. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for station devices and the overall station, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. The possible existence is indicated of a correlation between the mean thermodynamic Loss rate-to-capital cost ratios for all of the devices in a station and the ratios for the overall station, when the ratio is based on total or internal Exergy Losses. This correlation may imply that devices in successful electrical generating stations are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic characteristics of the overall station and its devices. The results may (i) provide useful insights into the relations between thermodynamics and economics, both in general and for electrical generating stations, (ii) help demonstrate the merits of second-law analysis, and (iii) extend throughout the electrical utility sector.
Hepbasli A. - One of the best experts on this subject based on the ideXlab platform.
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Thermodynamic analysis of a geothermal district heating system
'Inderscience Publishers', 2005Co-Authors: Ozgener L., Hepbasli A.Abstract:Thermoeconomic analysis is considered a useful tool for investigators in engineering and other disciplines due to its methodology based on the quantities Exergy, cost, energy and mass. This study deals with an investigation of capital costs and thermodynamic Losses for devices in the Balcova Geothermal District Heating Systems (BGDHS). Thermodynamic Loss rate-to-capital cost ratios are used for components and the overall system, and a systematic correlation is found between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. This correlation may imply that devices in successful district heating system are configured so as to achieve an overall optimal design, by balancing the thermodynamic (Exergy-based) and economic characteristics of the overall system and their devices. The results provide insights into the relations between thermodynamics and economics and help demonstrate the merits of Exergy analysis. © 2005 Inderscience Enterprises Ltd
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Exergoeconomic analysis of a solar assisted ground-source heat pump greenhouse heating system
'Elsevier BV', 2005Co-Authors: Ozgener O, Hepbasli A.Abstract:WOS: 000227926500005EXCEM analysis may prove useful to investigators in engineering and other disciplines due to the methodology are being based on the quantities Exergy, cost, energy and mass. The main objective of the present study is to investigate between capital costs and thermodynamic Losses for devices in solar assisted ground-source heat pump greenhouse heating system (SAGSHPGHS) with a 50 m vertical 32 mm nominal diameter U-bend ground heat exchanger. This system was designed and installed at the Solar Energy Institute, Ege University, Izmir, Turkey. Thermodynamic Loss rate-to-capital cost ratios are used to show that, for components and the overall system, a systematic correlation appears to exist between capital cost and Exergy Loss (total or internal), but not between capital cost and energy Loss or External Exergy Loss. This correlation may imply that devices in successful air conditioning are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (Exergy-based) and economic characteristics of the overall system and its devices. The results may (i) provide useful insights into the relations between thermodynamics and economics, both in general and for SAGSHPGHS, (ii) help demonstrate the merits of second-law analysis. It is observed from the results that the maximum Exergy destructions in the system particularly occur due to the electrical, mechanical and isentropic efficiencies and emphasize the need for paying close attention to the selection of this type of equipment, since components of inferior performance can considerably reduce the overall performance of the system. In conjunction with this, the total Exergy Losses values are obtained to be from 0.010 kW to 0.480 kW for the system. As expected, the largest energy and Exergy Losses occur in the greenhouse and compressor. The ratio of thermodynamic Loss rate to capital cost values are obtained for a range from 0.035 to 1.125. (c) 2004 Elsevier Ltd. All rights reserved
