Limits...
High temperature metal hydrides as heat storage materials for solar and related applications.

Felderhoff M, Bogdanović B - Int J Mol Sci (2009)

Bottom Line: High temperature metal hydrides offer high heat storage capacities around this temperature.Based on Mg-compounds, these hydrides are in principle low-cost materials with excellent cycling stability.Relevant properties of these hydrides and their possible applications as heat storage materials are described.

View Article: PubMed Central - PubMed

Affiliation: Max-Planck Institut für Kohlenforschung, Mülheim/Ruhr, Germany. felderhoff@mpi-muelheim.mpg.de <felderhoff@mpi-muelheim.mpg.de>

ABSTRACT
For the continuous production of electricity with solar heat power plants the storage of heat at a temperature level around 400 degrees C is essential. High temperature metal hydrides offer high heat storage capacities around this temperature. Based on Mg-compounds, these hydrides are in principle low-cost materials with excellent cycling stability. Relevant properties of these hydrides and their possible applications as heat storage materials are described.

Show MeSH

Related in: MedlinePlus

50 MW Solar power plant Andasol 1 with solar thermal energy storage system [27], photo with permission from Solar Millennium.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2662468&req=5

f12-ijms-10-00325: 50 MW Solar power plant Andasol 1 with solar thermal energy storage system [27], photo with permission from Solar Millennium.

Mentions: Andasol 1 is a solar thermal power plant located in Andalucia (Spain) with a 50 MW steam turbine for electricity production. To run the plant during the dark a heat storage system is installed for additional 7.5 h electricity production at night. The storage system consists of two insulated storage tanks each 14 m high and 36 m in diameter (Figure 12). They are filled with 28,000 tons of a molten salt mixture of sodium and potassium nitrate. The tanks are kept at different temperatures, the cold tank at 260 °C and the hot tank at 390 °C. To charge heat, the “cold” molten salt picks up heat in a heat exchanger from the 400 °C hot oil of the solar field and stores in the hot tank. For discharging the process is reversed [27]. The overall storable heat amount in this system is 1,000 MWh [28].


High temperature metal hydrides as heat storage materials for solar and related applications.

Felderhoff M, Bogdanović B - Int J Mol Sci (2009)

50 MW Solar power plant Andasol 1 with solar thermal energy storage system [27], photo with permission from Solar Millennium.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2662468&req=5

f12-ijms-10-00325: 50 MW Solar power plant Andasol 1 with solar thermal energy storage system [27], photo with permission from Solar Millennium.
Mentions: Andasol 1 is a solar thermal power plant located in Andalucia (Spain) with a 50 MW steam turbine for electricity production. To run the plant during the dark a heat storage system is installed for additional 7.5 h electricity production at night. The storage system consists of two insulated storage tanks each 14 m high and 36 m in diameter (Figure 12). They are filled with 28,000 tons of a molten salt mixture of sodium and potassium nitrate. The tanks are kept at different temperatures, the cold tank at 260 °C and the hot tank at 390 °C. To charge heat, the “cold” molten salt picks up heat in a heat exchanger from the 400 °C hot oil of the solar field and stores in the hot tank. For discharging the process is reversed [27]. The overall storable heat amount in this system is 1,000 MWh [28].

Bottom Line: High temperature metal hydrides offer high heat storage capacities around this temperature.Based on Mg-compounds, these hydrides are in principle low-cost materials with excellent cycling stability.Relevant properties of these hydrides and their possible applications as heat storage materials are described.

View Article: PubMed Central - PubMed

Affiliation: Max-Planck Institut für Kohlenforschung, Mülheim/Ruhr, Germany. felderhoff@mpi-muelheim.mpg.de <felderhoff@mpi-muelheim.mpg.de>

ABSTRACT
For the continuous production of electricity with solar heat power plants the storage of heat at a temperature level around 400 degrees C is essential. High temperature metal hydrides offer high heat storage capacities around this temperature. Based on Mg-compounds, these hydrides are in principle low-cost materials with excellent cycling stability. Relevant properties of these hydrides and their possible applications as heat storage materials are described.

Show MeSH
Related in: MedlinePlus