The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform

Marc A. Rosen - One of the best experts on this subject based on the ideXlab platform.

  • Addressing the Impact of Environmental Xenobiotics in Coal-Fired Flue Gas
    Sustainability, 2015
    Co-Authors: Marc A. Rosen, Cornelia Aida Bulucea, Nikos E. Mastorakis, Corina C. Brindusa, Andreea C. Jeles
    Abstract:

    Dangerous and unstable situations can result from the presence of environmental xenobiotics since their harmful effects on humans and ecosystems are often unpredictable, and building awareness of the environmental risk should be a main concern of humankind. The environmental xenobiotics in the flue gas from a fossil fuel-fired Electrical Generating Station, such as particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2), are analyzed in this study, since these xenobiotics are persistent pollutants. Mathematical models of the environmental pollutant vector, estimating the emission factors specific to fossil fuel combustion, are applied to the operation of thermal units in the Turceni Electrical Generating Station, each of which produces a net Electrical power of 330 MW. For each stack gas component in the pollutant vector, emission factors and pollutant concentrations are determined. A pattern is also examined depicting the mathematically modelled processes of resonant absorption of an environmental xenobiotic harmonic oscillation by an organism modulated as an absorbing oscillator structure. The xenobiotic concentration degree is represented through a spatial concentration vector, which allows further modelling and simulation of the oscillating regime of environmental xenobiotic absorption.

  • Building Awareness of the Impact of Environmental Xenobiotics in Coal-Fired Flue Gas
    Proceedings of The 4th World Sustainability Forum, 2014
    Co-Authors: Marc A. Rosen, Cornelia Aida Bulucea, Nikos E. Mastorakis, Corina C. Brindusa, Andreea C. Jeles
    Abstract:

    Dangerous and unstable situations can result from the presence of environmental xenobiotics since their harmful effects on humans and ecosystems are often unpredictable. The environmental xenobiotics in the flue gas from a fossil fuel-fired Electrical Generating Station, such as particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2), are analyzed in this study, since these xenobiotics are persistentent pollutants. Mathematical models of the environmental pollutant vector, estimating the emission factors specific to fossil fuel combustion, are applied to the operation of thermal units in the Turceni Electrical Generating Station, each of which produce a net Electrical power of 330 MW. For each stack gas component in the pollutant vector, emission factor and pollutant concentration are determined. A pattern is also examined depicting the mathematically modelled processes of resonant absorption of an environmental xenobiotic harmonic oscillation by an organism modulated as an absorbing oscillator structure. The xenobiotic concentration degree is represented through a spatial concentration vector, which allows further modelling and simulation of the oscillating regime of environmental xenobiotic absorption.

  • Improving Electrical Generating Station Efficiency by Varying Stack-Gas Temperature
    International Journal of Green Energy, 2007
    Co-Authors: Marc A. Rosen, Raymond Tang
    Abstract:

    Previous energy and exergy analyses of Electrical Generating Stations suggest that the steam generator is the most inefficient Station device and that significant increases in overall plant efficiency are possible by reducing steam-generator irreversibilities. In this article, a modification is examined to increase the efficiency of a steam power plant by reducing the irreversibility rate in the steam generator. The modification involves decreasing the stack-gas temperature. The findings demonstrate that overall-Station energy and exergy efficiencies both increase by 3.5% when the stack-gas temperature decreases from 149 to 87°C. The results are expected to be useful to designers of Electrical Generating Stations, since consideration of reductions in stack-gas temperatures seem to be merited. This conclusion applies both to existing Stations, which can be retrofitted, and to new Electrical Generating Station designs.

  • Effect of varying dead-state properties on energy and exergy analyses of thermal systems
    International Journal of Thermal Sciences, 2004
    Co-Authors: Marc A. Rosen, Ibrahim Dincer
    Abstract:

    Abstract This study deals with the effects on the results of energy and exergy analyses of variations in dead-state properties, and involves two main tasks: (i) examination of the sensitivities of energy and exergy values to the choice of the dead-state properties and (ii) analysis of the sensitivities of the results of energy and exergy analyses of complex systems to the choice of dead-state properties. A case study of a coal-fired Electrical Generating Station is considered to illustrate the actual influences. The results indicate that the sensitivities of energy and exergy values and the results of energy and exergy analyses to reasonable variations in dead-state properties are sufficiently small that the findings, conclusions and recommendations based on such analyses usually are not significantly affected by the property variations.

  • Thermoeconomic analysis of power plants: an application to a coal fired Electrical Generating Station
    Energy Conversion and Management, 2003
    Co-Authors: Marc A. Rosen, Ibrahim Dincer
    Abstract:

    Several thermodynamic relations between energy and exergy losses and capital costs for thermal systems and equipment are developed and applied to a modern coal fired Electrical Generating Station. Some possible generalizations of the results are also discussed. The application considers the overall Station and the following Station devices: turbine generators, steam generators, preheating devices and condensers. The data suggest that an important parameter is the ratio of the thermodynamic loss rate to capital cost. The relative spread in the ratio values for different devices is seen to be large when based on energy loss and small when based on exergy loss. The results suggest that a systematic correlation exists for capital cost and exergy loss but not for capital cost and energy loss. The results further suggest that the devices in modern coal fired Electrical Generating Stations approximately conform to a particular ratio value (based on exergy loss), which reflects the appropriate trade-off between exergy losses and capital costs that is practiced in successful plant designs. Further research is justified on the relations between the thermodynamic losses and capital costs, in general, and on the extension of the present results to different technologies, in particular. It is anticipated that the results will provide insights useful to designers into the relations between the thermodynamic losses and capital costs and will help to demonstrate the merits of second law analysis over the more conventional first law analysis techniques.

Cornelia Aida Bulucea - One of the best experts on this subject based on the ideXlab platform.

  • Addressing the Impact of Environmental Xenobiotics in Coal-Fired Flue Gas
    Sustainability, 2015
    Co-Authors: Marc A. Rosen, Cornelia Aida Bulucea, Nikos E. Mastorakis, Corina C. Brindusa, Andreea C. Jeles
    Abstract:

    Dangerous and unstable situations can result from the presence of environmental xenobiotics since their harmful effects on humans and ecosystems are often unpredictable, and building awareness of the environmental risk should be a main concern of humankind. The environmental xenobiotics in the flue gas from a fossil fuel-fired Electrical Generating Station, such as particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2), are analyzed in this study, since these xenobiotics are persistent pollutants. Mathematical models of the environmental pollutant vector, estimating the emission factors specific to fossil fuel combustion, are applied to the operation of thermal units in the Turceni Electrical Generating Station, each of which produces a net Electrical power of 330 MW. For each stack gas component in the pollutant vector, emission factors and pollutant concentrations are determined. A pattern is also examined depicting the mathematically modelled processes of resonant absorption of an environmental xenobiotic harmonic oscillation by an organism modulated as an absorbing oscillator structure. The xenobiotic concentration degree is represented through a spatial concentration vector, which allows further modelling and simulation of the oscillating regime of environmental xenobiotic absorption.

  • Building Awareness of the Impact of Environmental Xenobiotics in Coal-Fired Flue Gas
    Proceedings of The 4th World Sustainability Forum, 2014
    Co-Authors: Marc A. Rosen, Cornelia Aida Bulucea, Nikos E. Mastorakis, Corina C. Brindusa, Andreea C. Jeles
    Abstract:

    Dangerous and unstable situations can result from the presence of environmental xenobiotics since their harmful effects on humans and ecosystems are often unpredictable. The environmental xenobiotics in the flue gas from a fossil fuel-fired Electrical Generating Station, such as particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2), are analyzed in this study, since these xenobiotics are persistentent pollutants. Mathematical models of the environmental pollutant vector, estimating the emission factors specific to fossil fuel combustion, are applied to the operation of thermal units in the Turceni Electrical Generating Station, each of which produce a net Electrical power of 330 MW. For each stack gas component in the pollutant vector, emission factor and pollutant concentration are determined. A pattern is also examined depicting the mathematically modelled processes of resonant absorption of an environmental xenobiotic harmonic oscillation by an organism modulated as an absorbing oscillator structure. The xenobiotic concentration degree is represented through a spatial concentration vector, which allows further modelling and simulation of the oscillating regime of environmental xenobiotic absorption.

Paitoon Tontiwachwuthikul - One of the best experts on this subject based on the ideXlab platform.

  • A life cycle assessment study of a hypothetical Canadian oxy-fuel combustion carbon dioxide capture process
    International Journal of Greenhouse Gas Control, 2014
    Co-Authors: Jarotwan Koiwanit, Anastassia Manuilova, Malcolm Wilson, C. W. Chan, Paitoon Tontiwachwuthikul
    Abstract:

    Abstract For at least the next few decades, fossil fuels will be used to supply energy globally, and without a proper control technique, carbon dioxide (CO 2 ) atmospheric emissions will continue to increase and pose an even more serious threat to human and environment. Therefore, the use of an effective carbon dioxide capture technology has become important in ensuring reduction of CO 2 emissions. However, more raw materials and energy are required for the CO 2 capture systems operation. Consequently, it is necessary to evaluate the environmental performance of the complete life cycle of the CO 2 capture process in order to fully understand its environmental impacts. This study presents a life cycle assessment study on a hypothetical oxy-fuel combustion CO 2 capture system in Saskatchewan, Canada. The study analyses the oxy-fuel carbon dioxide capture and compares it with the lignite coal fired Electrical Generating Station that has no capture system. TRACI, the life cycle impact assessment (LCIA) method, is used to convert life cycle inventory data into environmental impacts. The observed results include a reduction in global warming and emissions to air impact categories due to capture of particulate matter (PM), trace elements, CO 2 and acid gases. However, the emissions captured would eventually leach to soil and then to the ground water when landfilled. Thus, an increase in the impact categories associated with soil and water was also observed.

  • A Comparative of Life Cycle Assessment of Post-combustion, Pre-combustion and Oxy-fuel CO2 Capture
    Energy Procedia, 2014
    Co-Authors: Qing Zhou, Anastassia Manuilova, Malcolm Wilson, Jarotwan Koiwanit, C. W. Chan, Lakkana Piewkhaow, Paitoon Tontiwachwuthikul
    Abstract:

    Abstract This paper presents a life cycle assessment (LCA) of three different carbon dioxide (CO 2 ) capture technologies, namely post- combustion, pre-combustion and oxy-fuel capture. The Boundary Dam Power Station (BDPS) in Saskatchewan, Canada was chosen as a case study for modeling of operations at the Electrical Generating Station. This study showed that CO 2 capture technologies have the potential of reducing greenhouse gas (GHG) emissions. Where an increase in the impact categories associated with soil and water was observed, the release of pollutants to the atmosphere were reduced and became more manageable in their waste streams.

Andreea C. Jeles - One of the best experts on this subject based on the ideXlab platform.

  • Addressing the Impact of Environmental Xenobiotics in Coal-Fired Flue Gas
    Sustainability, 2015
    Co-Authors: Marc A. Rosen, Cornelia Aida Bulucea, Nikos E. Mastorakis, Corina C. Brindusa, Andreea C. Jeles
    Abstract:

    Dangerous and unstable situations can result from the presence of environmental xenobiotics since their harmful effects on humans and ecosystems are often unpredictable, and building awareness of the environmental risk should be a main concern of humankind. The environmental xenobiotics in the flue gas from a fossil fuel-fired Electrical Generating Station, such as particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2), are analyzed in this study, since these xenobiotics are persistent pollutants. Mathematical models of the environmental pollutant vector, estimating the emission factors specific to fossil fuel combustion, are applied to the operation of thermal units in the Turceni Electrical Generating Station, each of which produces a net Electrical power of 330 MW. For each stack gas component in the pollutant vector, emission factors and pollutant concentrations are determined. A pattern is also examined depicting the mathematically modelled processes of resonant absorption of an environmental xenobiotic harmonic oscillation by an organism modulated as an absorbing oscillator structure. The xenobiotic concentration degree is represented through a spatial concentration vector, which allows further modelling and simulation of the oscillating regime of environmental xenobiotic absorption.

  • Building Awareness of the Impact of Environmental Xenobiotics in Coal-Fired Flue Gas
    Proceedings of The 4th World Sustainability Forum, 2014
    Co-Authors: Marc A. Rosen, Cornelia Aida Bulucea, Nikos E. Mastorakis, Corina C. Brindusa, Andreea C. Jeles
    Abstract:

    Dangerous and unstable situations can result from the presence of environmental xenobiotics since their harmful effects on humans and ecosystems are often unpredictable. The environmental xenobiotics in the flue gas from a fossil fuel-fired Electrical Generating Station, such as particulate matter (PM), sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2), are analyzed in this study, since these xenobiotics are persistentent pollutants. Mathematical models of the environmental pollutant vector, estimating the emission factors specific to fossil fuel combustion, are applied to the operation of thermal units in the Turceni Electrical Generating Station, each of which produce a net Electrical power of 330 MW. For each stack gas component in the pollutant vector, emission factor and pollutant concentration are determined. A pattern is also examined depicting the mathematically modelled processes of resonant absorption of an environmental xenobiotic harmonic oscillation by an organism modulated as an absorbing oscillator structure. The xenobiotic concentration degree is represented through a spatial concentration vector, which allows further modelling and simulation of the oscillating regime of environmental xenobiotic absorption.

Ibrahim Dincer - One of the best experts on this subject based on the ideXlab platform.

  • Effect of varying dead-state properties on energy and exergy analyses of thermal systems
    International Journal of Thermal Sciences, 2004
    Co-Authors: Marc A. Rosen, Ibrahim Dincer
    Abstract:

    Abstract This study deals with the effects on the results of energy and exergy analyses of variations in dead-state properties, and involves two main tasks: (i) examination of the sensitivities of energy and exergy values to the choice of the dead-state properties and (ii) analysis of the sensitivities of the results of energy and exergy analyses of complex systems to the choice of dead-state properties. A case study of a coal-fired Electrical Generating Station is considered to illustrate the actual influences. The results indicate that the sensitivities of energy and exergy values and the results of energy and exergy analyses to reasonable variations in dead-state properties are sufficiently small that the findings, conclusions and recommendations based on such analyses usually are not significantly affected by the property variations.

  • Thermoeconomic analysis of power plants: an application to a coal fired Electrical Generating Station
    Energy Conversion and Management, 2003
    Co-Authors: Marc A. Rosen, Ibrahim Dincer
    Abstract:

    Several thermodynamic relations between energy and exergy losses and capital costs for thermal systems and equipment are developed and applied to a modern coal fired Electrical Generating Station. Some possible generalizations of the results are also discussed. The application considers the overall Station and the following Station devices: turbine generators, steam generators, preheating devices and condensers. The data suggest that an important parameter is the ratio of the thermodynamic loss rate to capital cost. The relative spread in the ratio values for different devices is seen to be large when based on energy loss and small when based on exergy loss. The results suggest that a systematic correlation exists for capital cost and exergy loss but not for capital cost and energy loss. The results further suggest that the devices in modern coal fired Electrical Generating Stations approximately conform to a particular ratio value (based on exergy loss), which reflects the appropriate trade-off between exergy losses and capital costs that is practiced in successful plant designs. Further research is justified on the relations between the thermodynamic losses and capital costs, in general, and on the extension of the present results to different technologies, in particular. It is anticipated that the results will provide insights useful to designers into the relations between the thermodynamic losses and capital costs and will help to demonstrate the merits of second law analysis over the more conventional first law analysis techniques.