The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Gaetan Blandin - One of the best experts on this subject based on the ideXlab platform.
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opportunities to reach Economic Sustainability in forward osmosis reverse osmosis hybrids for seawater desalination
Desalination, 2015Co-Authors: Gaetan Blandin, Arne Verliefde, Chuyang Y Tang, Pierre LeclechAbstract:Abstract Despite being energetically attractive, the Economic Sustainability of forward osmosis (FO) - reverse osmosis (RO) hybrid process for seawater desalination has not yet been fully demonstrated. This study is the first to carry out an extensive Economic evaluation of FO-RO hybrid, benchmarked against stand-alone RO system. This assessment clearly highlights that FO-RO hybrid can be beneficial, comparatively to RO, only for high energy costs and/or substantial operational costs savings. It is also demonstrated that improvement in water permeation flux, typically above 30 L·m− 2·h− 1 for classical water recoveries, is an absolute prerequisite to lower investment costs down to an Economically acceptable level. Such fluxes are not achieved with current membrane developments when realistic feed and draw solutions are considered. In a second step, a sensitivity analysis was carried out to assess the effects of process parameters on flux in FO, compared to the above-mentioned benchmark. Results indicate that for novel FO membranes, typically a coupling of higher water permeability (A > 5 L·m− 2·h− 1·bar− 1) and lower structural parameter (S
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opportunities to reach Economic Sustainability in forward osmosis reverse osmosis hybrids for seawater desalination
Desalination, 2015Co-Authors: Gaetan Blandin, Arne Verliefde, Chuyang Y Tang, Pierre LeclechAbstract:Despite being energetically attractive, the Economic Sustainability of forward osmosis (FO) - reverse osmosis (RO) hybrid process for seawater desalination has not yet been fully demonstrated. This study is the first to carry out an extensive Economic evaluation of FO-RO hybrid, benchmarked against stand-alone RO system. This assessment clearly highlights that FO-RO hybrid can be beneficial, comparatively to RO, only for high energy costs and/or substantial operational costs savings. It is also demonstrated that improvement in water permeation flux, typically above 30 L·m− 2·h− 1 for classical water recoveries, is an absolute prerequisite to lower investment costs down to an Economically acceptable level. Such fluxes are not achieved with current membrane developments when realistic feed and draw solutions are considered. In a second step, a sensitivity analysis was carried out to assess the effects of process parameters on flux in FO, compared to the above-mentioned benchmark. Results indicate that for novel FO membranes, typically a coupling of higher water permeability (A > 5 L·m− 2·h− 1·bar− 1) and lower structural parameter (S < 100 μm) is required. This study also shows that the concept of pressure assisted osmosis (PAO) can help to reach higher fluxes with current commercial membranes, thereby demonstrating more favourable Economics compared to state-of-the-art FO membranes.
Pierre Leclech - One of the best experts on this subject based on the ideXlab platform.
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opportunities to reach Economic Sustainability in forward osmosis reverse osmosis hybrids for seawater desalination
Desalination, 2015Co-Authors: Gaetan Blandin, Arne Verliefde, Chuyang Y Tang, Pierre LeclechAbstract:Abstract Despite being energetically attractive, the Economic Sustainability of forward osmosis (FO) - reverse osmosis (RO) hybrid process for seawater desalination has not yet been fully demonstrated. This study is the first to carry out an extensive Economic evaluation of FO-RO hybrid, benchmarked against stand-alone RO system. This assessment clearly highlights that FO-RO hybrid can be beneficial, comparatively to RO, only for high energy costs and/or substantial operational costs savings. It is also demonstrated that improvement in water permeation flux, typically above 30 L·m− 2·h− 1 for classical water recoveries, is an absolute prerequisite to lower investment costs down to an Economically acceptable level. Such fluxes are not achieved with current membrane developments when realistic feed and draw solutions are considered. In a second step, a sensitivity analysis was carried out to assess the effects of process parameters on flux in FO, compared to the above-mentioned benchmark. Results indicate that for novel FO membranes, typically a coupling of higher water permeability (A > 5 L·m− 2·h− 1·bar− 1) and lower structural parameter (S
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opportunities to reach Economic Sustainability in forward osmosis reverse osmosis hybrids for seawater desalination
Desalination, 2015Co-Authors: Gaetan Blandin, Arne Verliefde, Chuyang Y Tang, Pierre LeclechAbstract:Despite being energetically attractive, the Economic Sustainability of forward osmosis (FO) - reverse osmosis (RO) hybrid process for seawater desalination has not yet been fully demonstrated. This study is the first to carry out an extensive Economic evaluation of FO-RO hybrid, benchmarked against stand-alone RO system. This assessment clearly highlights that FO-RO hybrid can be beneficial, comparatively to RO, only for high energy costs and/or substantial operational costs savings. It is also demonstrated that improvement in water permeation flux, typically above 30 L·m− 2·h− 1 for classical water recoveries, is an absolute prerequisite to lower investment costs down to an Economically acceptable level. Such fluxes are not achieved with current membrane developments when realistic feed and draw solutions are considered. In a second step, a sensitivity analysis was carried out to assess the effects of process parameters on flux in FO, compared to the above-mentioned benchmark. Results indicate that for novel FO membranes, typically a coupling of higher water permeability (A > 5 L·m− 2·h− 1·bar− 1) and lower structural parameter (S < 100 μm) is required. This study also shows that the concept of pressure assisted osmosis (PAO) can help to reach higher fluxes with current commercial membranes, thereby demonstrating more favourable Economics compared to state-of-the-art FO membranes.
Valentina Piergrossi - One of the best experts on this subject based on the ideXlab platform.
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building integrated bioenergy production bibp Economic Sustainability analysis of bari airport chp combined heat and power upgrade fueled with bioenergy from short chain
Renewable Energy, 2015Co-Authors: Livio De Santoli, Francesco Mancini, Benedetto Nastasi, Valentina PiergrossiAbstract:Abstract Harnessing biomass-derived energy can improve environmental and Economic Sustainability of a Combined Heat and Power production. The paper presents a new decision making policy and its application in meeting the energy up-grading needs of the Bari airport (300 kWe), based on an Economic-environmental analysis related to the use of different bioenergy from short chain (
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building integrated bioenergy production bibp Economic Sustainability analysis of bari airport chp combined heat and power upgrade fueled with bioenergy from short chain
Renewable Energy, 2015Co-Authors: Livio De Santoli, Francesco Mancini, Enedetto Nastasi, Valentina PiergrossiAbstract:Harnessing biomass-derived energy can improve environmental and Economic Sustainability of a Combined Heat and Power production. The paper presents a new decision making policy and its application in meeting the energy up-grading needs of the Bari airport (300 kWe), based on an Economic-environmental analysis related to the use of different bioenergy from short chain (<70 km). The main aim of this paper is to demonstrate how a “Zero Kilometer Energy” design model in a CHP plant represents a more sustainable alternative to the conventional approach, in terms of impacts on the local socio-Economic system. The study has been carried out in order to promote a synergistic and sustainable relationship between a territory and the infrastructures that service it, in terms of energy supply chain. For this purpose, three different bioenergy production systems (biomass from wood waste, vegetable oil/biodiesel and biogas from food waste) harnessing local agro-energy resources in Apulian region (Italy) were analyzed. The analysis has been integrated by a DCF (Discounted Cash Flow) Method, identifying the Economic feasibility to make an informed choice. Finally the theoretical paybacks under different governmental incentive schemes, from 2012 to 2015, have been calculated along with estimated carbon savings to highlight the energy market trends for the different biomass resources.
Hedzer J. Van Der Kooi - One of the best experts on this subject based on the ideXlab platform.
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possibilities and consequences of the total cumulative exergy loss method in improving the Sustainability of power generation
Energy Conversion and Management, 2016Co-Authors: Leen Stougie, Hedzer J. Van Der KooiAbstract:It is difficult to decide which power generation system is the most sustainable when environmental, Economic and social Sustainability aspects are taken into account. Problems with conventional environmental Sustainability assessment methods are that no consensus exists about the applied models and weighting factors and that exergy losses are not considered. Economic Sustainability assessment methods do not lead to results that are independent of time because they are influenced by market developments, while social Sustainability assessment methods suffer from the availability and qualitative or semi-quantitative nature of data. Existing exergy analysis methods do not take into account all exergy losses and/or are extended with factors or equations that are not commonly accepted. The new Total Cumulative Exergy Loss (TCExL) method is based on fundamental thermodynamic equations and takes into account all exergy losses caused by a technological system during its life cycle, i.e. internal exergy losses, exergy losses caused by emission abatement and exergy losses related to land use. The development of the TCExL method is presented as well as the application of this method and environmental, Economic and social Sustainability assessment methods to two case studies: power generation in combination with LNG evaporation and Fossil versus renewable energy sources for power generation. According to the results of the assessments, large differences exist between the environmental Sustainability assessment and TCExL methods in the sense that different parts of the systems contribute most to their overall scores. It is concluded from the case studies that involving the TCExL method in choices between power generation systems with the same energy sources has no consequences, i.e. it does not result in a different ranking of the systems, but can lead to the choice of a system that has a lower Economic Sustainability if the assessed systems use different energy sources. However, it must be noted that the Economic Sustainability changes over time, while the results of the TCExL method do not.
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possibilities and consequences of the total cumulative exergy loss method in improving the Sustainability of power generation
ECOS 2014: Proceedings of the 27th International Conference on Efficiency Cost Optimization Simulation and Environmental Impact of Energy Systems Turk, 2014Co-Authors: Leen Stougie, Hedzer J. Van Der KooiAbstract:It is difficult to decide which power generation system is the most sustainable when environmental, Economic and social Sustainability aspects are taken into account. Problems with conventional environmental Sustainability assessment methods are that no consensus exists about the applied models and weighting factors and that exergy losses are not considered. Economic Sustainability assessment methods do not lead to timeless results because they are influenced by market developments, while social Sustainability assessment methods suffer from the availability and qualitative or semi-quantitative nature of data. Existing exergy analysis methods do not take into account all exergy losses and/or are extended with factors or equations that are not commonly accepted. The new Total Cumulative Exergy Loss (TCExL) method is based on fundamental thermodynamic equations and takes into account all exergy losses caused by a technological system during its life cycle, i.e. internal exergy losses, exergy losses caused by emission abatement and exergy losses related to land use. The development of the TCExL method is presented as well as the application of this method and environmental, Economic and social Sustainability assessment methods to two case studies: Power generation in combination with LNG evaporation and Fossil versus renewable energy sources for power generation. According to the results of the assessments, large differences exist between the environmental Sustainability assessment and TCExL methods in the sense that different parts of the systems contribute most to their overall scores. It is concluded from the case studies that involving the TCExL method in choices between power generation systems with the same energy sources has no consequences, but can lead to the choice of a system that has a lower Economic Sustainability if the systems use different energy sources. However, it must be noted that the Economic Sustainability changes over time, while the results of the TCExL method do not.
Livio De Santoli - One of the best experts on this subject based on the ideXlab platform.
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building integrated bioenergy production bibp Economic Sustainability analysis of bari airport chp combined heat and power upgrade fueled with bioenergy from short chain
Renewable Energy, 2015Co-Authors: Livio De Santoli, Francesco Mancini, Benedetto Nastasi, Valentina PiergrossiAbstract:Abstract Harnessing biomass-derived energy can improve environmental and Economic Sustainability of a Combined Heat and Power production. The paper presents a new decision making policy and its application in meeting the energy up-grading needs of the Bari airport (300 kWe), based on an Economic-environmental analysis related to the use of different bioenergy from short chain (
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building integrated bioenergy production bibp Economic Sustainability analysis of bari airport chp combined heat and power upgrade fueled with bioenergy from short chain
Renewable Energy, 2015Co-Authors: Livio De Santoli, Francesco Mancini, Enedetto Nastasi, Valentina PiergrossiAbstract:Harnessing biomass-derived energy can improve environmental and Economic Sustainability of a Combined Heat and Power production. The paper presents a new decision making policy and its application in meeting the energy up-grading needs of the Bari airport (300 kWe), based on an Economic-environmental analysis related to the use of different bioenergy from short chain (<70 km). The main aim of this paper is to demonstrate how a “Zero Kilometer Energy” design model in a CHP plant represents a more sustainable alternative to the conventional approach, in terms of impacts on the local socio-Economic system. The study has been carried out in order to promote a synergistic and sustainable relationship between a territory and the infrastructures that service it, in terms of energy supply chain. For this purpose, three different bioenergy production systems (biomass from wood waste, vegetable oil/biodiesel and biogas from food waste) harnessing local agro-energy resources in Apulian region (Italy) were analyzed. The analysis has been integrated by a DCF (Discounted Cash Flow) Method, identifying the Economic feasibility to make an informed choice. Finally the theoretical paybacks under different governmental incentive schemes, from 2012 to 2015, have been calculated along with estimated carbon savings to highlight the energy market trends for the different biomass resources.
