A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hard Rock CAES Caverns: Leakage Prediction and Prevention
One type of underground air storage that offers many points of resemblance to future hard rock CAES-caverns is the so-called air cushion surge chamber. A total of ten such facilities are in operation, all of them connected to Norwegian underground hydropower plants. The air cushion surge chambers are unlined hard rock caverns with volumes up to 110,000 cu m and pressures up to 7.7 MPa. The paper discusses the experience from operation and full scale testing at these air storages, with regard to leakage and leakage prevention. A simple, but useful model for leakage estimation is also presented. The conclusion based on full scale experiments is that it is fully possible to establish a storage of compressed air in unlined caverns excavated in hard rocks. Air leakages may be completely eliminated by the use of so-called water curtains (or water umbrellas), for a marginal additional cost.
Hard Rock CAES Caverns: Leakage Prediction and Prevention
One type of underground air storage that offers many points of resemblance to future hard rock CAES-caverns is the so-called air cushion surge chamber. A total of ten such facilities are in operation, all of them connected to Norwegian underground hydropower plants. The air cushion surge chambers are unlined hard rock caverns with volumes up to 110,000 cu m and pressures up to 7.7 MPa. The paper discusses the experience from operation and full scale testing at these air storages, with regard to leakage and leakage prevention. A simple, but useful model for leakage estimation is also presented. The conclusion based on full scale experiments is that it is fully possible to establish a storage of compressed air in unlined caverns excavated in hard rocks. Air leakages may be completely eliminated by the use of so-called water curtains (or water umbrellas), for a marginal additional cost.
Hard Rock CAES Caverns: Leakage Prediction and Prevention
H. Kjoerholt (author) / E. Broch (author)
1992
21 pages
Report
No indication
English
Stability analysis for design of CAES caverns and cases of application
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Elsevier | 1986
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