Among all the storage systems for Renewable Energy Sources, those based on chemical energy seem to be the unique suitable for long time storage. Moreover most of the current technologies to convert RES's generate electric energy, while the main energy demand is for fuels. Therefore the best solution for storage seems to be the so called “power to fuel” and hydrogen is generally considered the best fuel to store exceeding power from RES's. Unfortunately on-board storage and distribution of hydrogen is not as easy as produce and use it. Coal is the less expensive and best distributed fossil fuel, but it is also that with the highest carbon dioxide emissions. Combining the carbon of coal with electrolytic hydrogen from RES's results in a mixture of methane and hydrogen with characteristics close to those of natural gas. In such a way the drawbacks of RES's will be solved and the global carbon dioxide emissions will be reduced. Coupling wind and coal could result in a significant potential of installation of new wind farm without creating instability on the grid. Using AspenONE® v8.4 we carried out a simulation considering some European regions characterised by availability of coal seams and wind.
Wind & coal to generate a substitute of natural gas by hydro-gasification
SPAZZAFUMO, Giuseppe;
2015-01-01
Abstract
Among all the storage systems for Renewable Energy Sources, those based on chemical energy seem to be the unique suitable for long time storage. Moreover most of the current technologies to convert RES's generate electric energy, while the main energy demand is for fuels. Therefore the best solution for storage seems to be the so called “power to fuel” and hydrogen is generally considered the best fuel to store exceeding power from RES's. Unfortunately on-board storage and distribution of hydrogen is not as easy as produce and use it. Coal is the less expensive and best distributed fossil fuel, but it is also that with the highest carbon dioxide emissions. Combining the carbon of coal with electrolytic hydrogen from RES's results in a mixture of methane and hydrogen with characteristics close to those of natural gas. In such a way the drawbacks of RES's will be solved and the global carbon dioxide emissions will be reduced. Coupling wind and coal could result in a significant potential of installation of new wind farm without creating instability on the grid. Using AspenONE® v8.4 we carried out a simulation considering some European regions characterised by availability of coal seams and wind.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
