| 摘要 |
An all weather, year-round heat pump system for northern climates incorporates a containerless in-earth heat storage means comprising a compact nest of small bore pipes buried in a trench or pit. The heat circulation fluid comprises an anti- freeze mixture and is operated in winter, even under the most demanding circumstances within a few degrees of the freezing point of water. A solar energy collector, owing to the controlled temperature operates without ice build-up on the collector. The heat storage means builds an icy mass about the pipe nest as heat is extracted, so that a very large amount of heat is available from a relatively small installation requiring little ground area, due to the utilization of the latent heat of fusion. <IMAGE> |
