The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Markus Weber - One of the best experts on this subject based on the ideXlab platform.
-
How Will Hydroelectric Power Generation Develop under Climate Change Scenarios? A Case Study in the Upper Danube Basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
-
how will Hydroelectric Power generation develop under climate change scenarios a case study in the upper danube basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
Aydogan Ozdamar - One of the best experts on this subject based on the ideXlab platform.
-
numerical and experimental investigation of optimum surge tank forms in Hydroelectric Power plants
Renewable Energy, 2013Co-Authors: Tarik Efe Kendir, Aydogan OzdamarAbstract:Abstract Load changes occurring in water turbines often result in pressure waves at Hydroelectric Power plants. Load reduction or the sudden closure of the turbines causes high pressures to build on the penstock similarly to a water hammer. This pressure can cause damage to components of the Power plant. Surge tanks are used to prevent these problems. For two Power plants operating at similar flow rates, diameters and lengths of the penstocks, and diameters and lengths of the tunnels, the surge tank with a smaller volume is the most economically viable. The purpose of this study is to obtain an optimised surge tank configuration to reduce the cost of a hydroPower plant in the future. Two methods were used for determining the optimum tank form: characteristic and finite difference methods (for the rigid and elastic method/approach). In addition, frictional losses and velocity loads inside the pipes and surge tanks were examined for different surge tank configurations in this study. In this paper, economically optimised surge tanks used for Hydroelectric Power plants were investigated. For this purpose, four basic surge-tank systems were numerically investigated. A 2° inclined straight V-type surge tank was found to be the most optimum configuration. Both rigid and elastic water column calculation methods were used for this study. Following this approach, an experimental model of a Hydroelectric Power plant with an optimised surge tank was created based on the model. This experimental model and prototype were numerically investigated. Finally, the results were compared and were found to be in agreement.
Franziska Koch - One of the best experts on this subject based on the ideXlab platform.
-
How Will Hydroelectric Power Generation Develop under Climate Change Scenarios? A Case Study in the Upper Danube Basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
-
how will Hydroelectric Power generation develop under climate change scenarios a case study in the upper danube basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
Heike Bach - One of the best experts on this subject based on the ideXlab platform.
-
How Will Hydroelectric Power Generation Develop under Climate Change Scenarios? A Case Study in the Upper Danube Basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
-
how will Hydroelectric Power generation develop under climate change scenarios a case study in the upper danube basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
Florian Appel - One of the best experts on this subject based on the ideXlab platform.
-
How Will Hydroelectric Power Generation Develop under Climate Change Scenarios? A Case Study in the Upper Danube Basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
-
how will Hydroelectric Power generation develop under climate change scenarios a case study in the upper danube basin
Energies, 2011Co-Authors: Franziska Koch, Monika Prasch, Heike Bach, Wolfram Mauser, Florian Appel, Markus WeberAbstract:Climate change has a large impact on water resources and thus on hydroPower. Hydroelectric Power generation is closely linked to the regional hydrological situation of a watershed and reacts sensitively to changes in water quantity and seasonality. The development of Hydroelectric Power generation in the Upper Danube basin was modelled for two future decades, namely 2021–2030 and 2051–2060, using a special hydroPower module coupled with the physically-based hydrological model PROMET. To cover a possible range of uncertainties, 16 climate scenarios were taken as meteorological drivers which were defined from different ensemble outputs of a stochastic climate generator, based on the IPCC-SRES-A1B emission scenario and four regional climate trends. Depending on the trends, the results show a slight to severe decline in Hydroelectric Power generation. Whilst the mean summer values indicate a decrease, the mean winter values display an increase. To show past and future regional differences within the Upper Danube basin, three hydroPower plants at individual locations were selected. Inter-annual differences originate predominately from unequal contributions of the runoff compartments rain, snow- and ice-melt.
