| 摘要 |
An apparatus for changing the temperature in a room comprises a coolant generator 11-12 with a coolant accumulator 12 and a member 13 for circulating the air in the room through the accumulator 12. The coolant generator accumulates cold in a medium present in the coolant accumulator 12, which medium consists of a substance in one or more phases. By means of a medium consisting of a substance in two phases, the coolant generator 11-12 converts parts of the medium from liquid phase to solid phase (ice) or gaseous phase in the coolant accumulator 12. The member 13 circulates the air depending on whether there is a person in the room or not. A sensor 22 senses the difference between the outside and the inside temperature and controls the member 13 depending on this difference, when the latter has fixed values. A timer 23 interrupts the coolant generator 11-12 when a certain portion of the liquid has been converted to ice and gas or, respectively, when a certain smaller portion of the liquid has been converted to ice and gas, and said member 13 maintain the air circulation. <IMAGE>
|
