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Erik Aldenius presents his MSc. thesis "Compressed Air Energy Storage assessment of the Lund Sandstone– 3D model of the sandstone reservoir and evaluation of the geoenergy potential"

Seminar

Erik Aldenius presents his MSc. thesis "Compressed Air Energy Storage assessment of the Lund Sandstone– 3D model of the sandstone reservoir and evaluation of the geoenergy potential"

Supervisor: Mikael Erlström

Examiner: Mats Eriksson

Student opponent: James Davies

Abstract:

To reduce the dependence on fossil fuels we need to diversify our energy production and utilize the renewable sources in the best way possible. One problem with renewable sources such as wind and solar energy is that the production is not consistent. To get the most out of these energy sources you need a way to store the energy when production exceeds demand to utilize when production is lower than the demand. Compressed air energy storage (CAES) uses excess energy to compress air which can then be stored in a porous aquifer or a salt cavern. The compressed air can then be used to drive a turbine to turn it back into electricity when needed. Geothermal energy is another way to utilize a porous aquifer. The earth is hotter the deeper you get, and if a rock formation contains water this can be used for heating with the help of heat pumps or to produce electricity if it is hot enough. In Scania there is an up to 700 m thick sandstone formation, the Lund Sandstone formation, where the geothermal energy has been used for district heating for over 30 years and which also has shown potential for energy storage. This formation was investigated for the possibility to store natural in 1977-1985. The data from these investigations were digitalized and used to make a 3D model in this paper. The possibilities for CAES and geothermal energy was analyzed as well as a brief look at other storage possibilities in the Kyrkheddinge area south of Lund. The possibilities for CAES and similar storage were considered slim while the possibilities geothermal energy uses were thought to be similar to that of the Lund Geothermal Field.

Time: 
14 June 2019 13:15
Location: 
Rodinia

About the event

Time: 
14 June 2019 13:15
Location: 
Rodinia