| 摘要 |
There is provided according to the presently disclosed subject matter an apparatus for heating fluid. The apparatus includes a chamber containing fluid therein, a turbine having at least one turbine blade mounted on a shaft extending inside the chamber. The at least one turbine blade being configured to extracts mechanical energy from an external fluid flow outside the chamber thereby creating a rotary motion of the shaft. The apparatus further includes at least one rotor disposed in the chamber and mounted on the shaft so as to rotate therewith in a first direction of rotation; and at least one stator disposed in the chamber in a such disposition with respect to the rotor that the temperature of fluid disposed therebetween increases in response to the rotation of the rotor. |
