Energy Loss Of Compressed Air Storage In Hard Rock
Author(s)
Y. Zimmels, F. Kirzhner & B. Krasovitski
Abstract
Energy loss of compressed air storage in
hard rock
Y. Zimmels, F. Kirzhner & B. Krasovitski
Department of Civil and Environmental Engineering,
Technion - Israel Institute of Technology, Israel
Abstract
Underground space provides opportunities for environmentally safe storage and
retrieval of energy. Compressed Air Energy Storage (CAES) in underground
caverns can be used to generate electrical power during peak demand periods.
The excess power generation capacity, which is available when demand is low,
is used to store energy in the form of compressed air. This energy is then
retrieved during peak demand periods. The structural stabilities and leakage
features of the air storage site determines the expected energy losses, efficiencies
of energy conversions and the corresponding economics. Design examples of
CAES systems are presented, their geomechanical and thermal responses to
compression and air release cycles are considered, and the corresponding energy
losses are estimated.
1 Introduction
Keywords
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