The Experts below are selected from a list of 5430 Experts worldwide ranked by ideXlab platform
Adelio Mendes - One of the best experts on this subject based on the ideXlab platform.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno Nazario Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas. The solution with lower LCOE was obtained for the hybridization of a 4 MWe CRS using an atmospheric volumetric Receiver with biogas from an anaerobic digester using sludge from a wastewater treatment plant (WWTP). Different results would be obtained for the hybrid Systems if different CRS technologies are used. The hybrid CRS/anaerobic digester power plant LCOE is 0.15 €/kWh, returning the investment in 13 years (assuming sludge collection and transport without cost) with the best net present value (15 million euro) and internal rate of return of all the hybrid options.
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optimization of an atmospheric air volumetric Central Receiver System impact of solar multiple storage capacity and control strategy
Renewable Energy, 2014Co-Authors: Bruno Nazario Coelho, Armando C Oliveira, Szabolcs Varga, Adelio MendesAbstract:Abstract Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric Central Receiver Systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric Central Receiver System showed good performance and economical indicators. For Faro conditions, the best 4 MWe power plant configuration was obtained for a 1.25 solar multiple and a 2 h storage. Applying control strategy #1 (CS#1) the power plant LEC is 0.234 €/kWh with a capital investment (CAPEX) of € 22.3 million. The capital invested has an internal rate of return (IRR) of 9.8%, with a payback time of 14 years and a net present value (NPV) of € 7.9 million (considering an average annual inflation of 4%). In the case of better economical indicators, the power plant investment can have positive contours, with an NPV close to € 13 million (annual average inflation of 2%) and the payback shortened to 13 years.
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optimization of an atmospheric air volumetric Central Receiver System impact of solar multiple storage capacity and control strategy
Renewable Energy, 2014Co-Authors: Bruno N Coelho, Armando C Oliveira, Szabolcs Varga, Adelio MendesAbstract:Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric Central Receiver Systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric Central Receiver System showed good performance and economical indicators.
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biomass and Central Receiver System crs hybridization volumetric air crs and integration of a biomass waste direct burning boiler on steam cycle
Solar Energy, 2012Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Concentrated solar power (CSP) plants generate an almost continuous flow of fully dispatchable “renewable” electricity and can replace the present fossil fuel power plants for base load electricity generation. Nevertheless, actual CSP plants have moderate electricity costs, in most cases quite low capacity factors and transient problems due to high inertia. Hybridization can help solve these problems and, if done with the integration of forest waste biomass, the “renewable” goal can be maintained, with positive impact on forest fire reduction. Local conditions, resources and feed in tariffs have great impact on the economical and technical evaluation of hybrid solutions; one of the premium European locations for this type of power plants is the Portuguese Algarve region. Due to the concept innovation level, conservative approaches were considered to be the best solutions. In this perspective, for a lower capital investment 4 MWe power plant scale, the best technical/economical solution is the hybrid CRS/biomass power plant HVIB3S4s with CS3 control strategy. It results in a levelized electricity cost (LEC) of 0.146 €/kWh, with higher efficiency and capacity factor than a conventional 4 MWe CRS. A larger 10 MWe hybrid power plant HVIB3S10s could generate electricity with positive economical indicators (LEC of 0.108 €/kWh and IRR of 11.0%), with twice the annual efficiency (feedstock to electricity) and lower costs than a conventional 4 MWe CRS. It would also lead to a 17% reduction in biomass consumption (approximately 12,000 tons less per year) when compared with a typical 10 MWe biomass power plant – FRB10; this would be significant in the case of continuous biomass price increase.
Armando C Oliveira - One of the best experts on this subject based on the ideXlab platform.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno Nazario Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas. The solution with lower LCOE was obtained for the hybridization of a 4 MWe CRS using an atmospheric volumetric Receiver with biogas from an anaerobic digester using sludge from a wastewater treatment plant (WWTP). Different results would be obtained for the hybrid Systems if different CRS technologies are used. The hybrid CRS/anaerobic digester power plant LCOE is 0.15 €/kWh, returning the investment in 13 years (assuming sludge collection and transport without cost) with the best net present value (15 million euro) and internal rate of return of all the hybrid options.
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optimization of an atmospheric air volumetric Central Receiver System impact of solar multiple storage capacity and control strategy
Renewable Energy, 2014Co-Authors: Bruno Nazario Coelho, Armando C Oliveira, Szabolcs Varga, Adelio MendesAbstract:Abstract Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric Central Receiver Systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric Central Receiver System showed good performance and economical indicators. For Faro conditions, the best 4 MWe power plant configuration was obtained for a 1.25 solar multiple and a 2 h storage. Applying control strategy #1 (CS#1) the power plant LEC is 0.234 €/kWh with a capital investment (CAPEX) of € 22.3 million. The capital invested has an internal rate of return (IRR) of 9.8%, with a payback time of 14 years and a net present value (NPV) of € 7.9 million (considering an average annual inflation of 4%). In the case of better economical indicators, the power plant investment can have positive contours, with an NPV close to € 13 million (annual average inflation of 2%) and the payback shortened to 13 years.
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optimization of an atmospheric air volumetric Central Receiver System impact of solar multiple storage capacity and control strategy
Renewable Energy, 2014Co-Authors: Bruno N Coelho, Armando C Oliveira, Szabolcs Varga, Adelio MendesAbstract:Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric Central Receiver Systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric Central Receiver System showed good performance and economical indicators.
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biomass and Central Receiver System crs hybridization volumetric air crs and integration of a biomass waste direct burning boiler on steam cycle
Solar Energy, 2012Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Concentrated solar power (CSP) plants generate an almost continuous flow of fully dispatchable “renewable” electricity and can replace the present fossil fuel power plants for base load electricity generation. Nevertheless, actual CSP plants have moderate electricity costs, in most cases quite low capacity factors and transient problems due to high inertia. Hybridization can help solve these problems and, if done with the integration of forest waste biomass, the “renewable” goal can be maintained, with positive impact on forest fire reduction. Local conditions, resources and feed in tariffs have great impact on the economical and technical evaluation of hybrid solutions; one of the premium European locations for this type of power plants is the Portuguese Algarve region. Due to the concept innovation level, conservative approaches were considered to be the best solutions. In this perspective, for a lower capital investment 4 MWe power plant scale, the best technical/economical solution is the hybrid CRS/biomass power plant HVIB3S4s with CS3 control strategy. It results in a levelized electricity cost (LEC) of 0.146 €/kWh, with higher efficiency and capacity factor than a conventional 4 MWe CRS. A larger 10 MWe hybrid power plant HVIB3S10s could generate electricity with positive economical indicators (LEC of 0.108 €/kWh and IRR of 11.0%), with twice the annual efficiency (feedstock to electricity) and lower costs than a conventional 4 MWe CRS. It would also lead to a 17% reduction in biomass consumption (approximately 12,000 tons less per year) when compared with a typical 10 MWe biomass power plant – FRB10; this would be significant in the case of continuous biomass price increase.
Bruno N Coelho - One of the best experts on this subject based on the ideXlab platform.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas.
-
optimization of an atmospheric air volumetric Central Receiver System impact of solar multiple storage capacity and control strategy
Renewable Energy, 2014Co-Authors: Bruno N Coelho, Armando C Oliveira, Szabolcs Varga, Adelio MendesAbstract:Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric Central Receiver Systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric Central Receiver System showed good performance and economical indicators.
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biomass and Central Receiver System crs hybridization volumetric air crs and integration of a biomass waste direct burning boiler on steam cycle
Solar Energy, 2012Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Concentrated solar power (CSP) plants generate an almost continuous flow of fully dispatchable “renewable” electricity and can replace the present fossil fuel power plants for base load electricity generation. Nevertheless, actual CSP plants have moderate electricity costs, in most cases quite low capacity factors and transient problems due to high inertia. Hybridization can help solve these problems and, if done with the integration of forest waste biomass, the “renewable” goal can be maintained, with positive impact on forest fire reduction. Local conditions, resources and feed in tariffs have great impact on the economical and technical evaluation of hybrid solutions; one of the premium European locations for this type of power plants is the Portuguese Algarve region. Due to the concept innovation level, conservative approaches were considered to be the best solutions. In this perspective, for a lower capital investment 4 MWe power plant scale, the best technical/economical solution is the hybrid CRS/biomass power plant HVIB3S4s with CS3 control strategy. It results in a levelized electricity cost (LEC) of 0.146 €/kWh, with higher efficiency and capacity factor than a conventional 4 MWe CRS. A larger 10 MWe hybrid power plant HVIB3S10s could generate electricity with positive economical indicators (LEC of 0.108 €/kWh and IRR of 11.0%), with twice the annual efficiency (feedstock to electricity) and lower costs than a conventional 4 MWe CRS. It would also lead to a 17% reduction in biomass consumption (approximately 12,000 tons less per year) when compared with a typical 10 MWe biomass power plant – FRB10; this would be significant in the case of continuous biomass price increase.
Bruno Nazario Coelho - One of the best experts on this subject based on the ideXlab platform.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno Nazario Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas. The solution with lower LCOE was obtained for the hybridization of a 4 MWe CRS using an atmospheric volumetric Receiver with biogas from an anaerobic digester using sludge from a wastewater treatment plant (WWTP). Different results would be obtained for the hybrid Systems if different CRS technologies are used. The hybrid CRS/anaerobic digester power plant LCOE is 0.15 €/kWh, returning the investment in 13 years (assuming sludge collection and transport without cost) with the best net present value (15 million euro) and internal rate of return of all the hybrid options.
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optimization of an atmospheric air volumetric Central Receiver System impact of solar multiple storage capacity and control strategy
Renewable Energy, 2014Co-Authors: Bruno Nazario Coelho, Armando C Oliveira, Szabolcs Varga, Adelio MendesAbstract:Abstract Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric Central Receiver Systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric Central Receiver System showed good performance and economical indicators. For Faro conditions, the best 4 MWe power plant configuration was obtained for a 1.25 solar multiple and a 2 h storage. Applying control strategy #1 (CS#1) the power plant LEC is 0.234 €/kWh with a capital investment (CAPEX) of € 22.3 million. The capital invested has an internal rate of return (IRR) of 9.8%, with a payback time of 14 years and a net present value (NPV) of € 7.9 million (considering an average annual inflation of 4%). In the case of better economical indicators, the power plant investment can have positive contours, with an NPV close to € 13 million (annual average inflation of 2%) and the payback shortened to 13 years.
Peter Schwarzbozl - One of the best experts on this subject based on the ideXlab platform.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno Nazario Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas. The solution with lower LCOE was obtained for the hybridization of a 4 MWe CRS using an atmospheric volumetric Receiver with biogas from an anaerobic digester using sludge from a wastewater treatment plant (WWTP). Different results would be obtained for the hybrid Systems if different CRS technologies are used. The hybrid CRS/anaerobic digester power plant LCOE is 0.15 €/kWh, returning the investment in 13 years (assuming sludge collection and transport without cost) with the best net present value (15 million euro) and internal rate of return of all the hybrid options.
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biomass and Central Receiver System crs hybridization integration of syngas biogas on the atmospheric air volumetric crs heat recovery steam generator duct burner
Renewable Energy, 2015Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Central Receiver Systems (CRS) are a promising concentrated solar power (CSP) technology for dispatchable electricity generation. The CRS levelized cost of electricity (LCOE) is usually increased by low power-block capacity factors or by high thermal storage costs. The economical turnover is still positive for the Portuguese case but depends on the bonus feed-in tariffs. On the other hand, with biomass existing feed-in tariffs and raising prices, the viability of current biomass power plants is at risk. To address these issues, several base case power plants and hybrid biomass/CSP options are analyzed: wood gasification, refuse-derived fuel pellets, biogas from a wastewater anaerobic digester, biogas from a landfill and natural gas.
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biomass and Central Receiver System crs hybridization volumetric air crs and integration of a biomass waste direct burning boiler on steam cycle
Solar Energy, 2012Co-Authors: Bruno N Coelho, Peter Schwarzbozl, Armando C Oliveira, Adelio MendesAbstract:Abstract Concentrated solar power (CSP) plants generate an almost continuous flow of fully dispatchable “renewable” electricity and can replace the present fossil fuel power plants for base load electricity generation. Nevertheless, actual CSP plants have moderate electricity costs, in most cases quite low capacity factors and transient problems due to high inertia. Hybridization can help solve these problems and, if done with the integration of forest waste biomass, the “renewable” goal can be maintained, with positive impact on forest fire reduction. Local conditions, resources and feed in tariffs have great impact on the economical and technical evaluation of hybrid solutions; one of the premium European locations for this type of power plants is the Portuguese Algarve region. Due to the concept innovation level, conservative approaches were considered to be the best solutions. In this perspective, for a lower capital investment 4 MWe power plant scale, the best technical/economical solution is the hybrid CRS/biomass power plant HVIB3S4s with CS3 control strategy. It results in a levelized electricity cost (LEC) of 0.146 €/kWh, with higher efficiency and capacity factor than a conventional 4 MWe CRS. A larger 10 MWe hybrid power plant HVIB3S10s could generate electricity with positive economical indicators (LEC of 0.108 €/kWh and IRR of 11.0%), with twice the annual efficiency (feedstock to electricity) and lower costs than a conventional 4 MWe CRS. It would also lead to a 17% reduction in biomass consumption (approximately 12,000 tons less per year) when compared with a typical 10 MWe biomass power plant – FRB10; this would be significant in the case of continuous biomass price increase.