| 摘要 |
<p>The present invention relates to an arrangement for storing thermal energy, comprising at least two tunnels (1a, 1b) for holding a fluid. The tunnels (1a, 1b) are connected to each other by at least one channel (2), such that fluid communication is allowed between the tunnels (1a, 1b). Each tunnel (1a, 1b) extends at least partially along a respective circular arc.</p> |
