| 摘要 |
A water heating method and apparatus for supply of heated water to an installation comprises a combined heat and power (CHP) unit 1, a heat storage means 3, and a secondary heating device 2. The CHP unit and the secondary heating device are arranged to operate in first and second modes. In the first mode, the CHP unit provides heat to the heat storage means and the secondary heating device provides all the heated water required to meet the heat demand of the installation. In the second mode, the secondary heating device is inactive, and the heated water to meet the heat demand is provided by the CHP unit and/or from the heat storage means. The CHP unit may be an internal combustion (IC) engine or a fuel cell, where the unit preferably produces electrical power. The secondary heating device may be a boiler. In a further aspect, a method and apparatus for controlling a valve 8 for controlling the flow of water from a heating device water circuit output to a main water circuit is presented. |
