Compressed air storage chamber materials

What is compressed air energy storage (CAES)?

Compressed air energy storage (CAES) is an effective solution for balancing this mismatch and therefore is suitable for use in future electrical systems to achieve a high penetration of renewable energy generation.

Where is compressed air stored?

Compressed air is stored in underground caverns or up ground vessels , . The CAES technology has existed for more than four decades. However, only Germany (Huntorf CAES plant) and the United States (McIntosh CAES plant) operate full-scale CAES systems, which are conventional CAES systems that use fuel in operation , .

What is the airtight lining structure of underground compressed air storage cavern?

To ensure pressure resistance and air-tightness, the airtight lining structure of the underground compressed air storage cavern is of composite construction comprising split lining and airtight sealing material. Fig. 1 is a general view of the structure.

Can compressed air energy storage gas turbines be used for power generation?

Significant efforts are being made in Japan to study power generation systems using Compressed-Air Energy Storage Gas Turbines (CAES-G/T).

How long is a compression chamber?

The length of the compression chamber was between 2.00 and 6.00 m, and the mean diameter was 0.03–0.10 m. The results demonstrated that the air temperature and pressure increased gently at the beginning and quickly from the bottom to the top when compressed with a piston velocity of approximately 0.125 m·s −1.

Why is split lining structure used in underground compressed air storage caverns?

Split-lining structure was applied for the airtight lining of the underground compressed air storage cavern, to assure the safety and economic efficiency of pressurized air storage under the various geological conditions. In-situ tests were performed in actual caverns, to verify the design of split lining structure in practice.