荷兰虽不是阳光十分充足的国家,可是,冬季却也不十分寒冷。这种自然条件,就使哥罗宁根市荷兰科研中心制订和实施的太阳能采暖设计有了成功的希望。预计这座城市的居民区都将利用通过集热器储存于地下的大量太阳能采暖。集热器由带有黑色管芯的透明管组成,已在96座居民大楼顶上安装了约15000根这种集热管,经阳光晒热的热水通过管道储入地下,大 Although the Netherlands is not a very sunny country, winter is not very cold. This natural condition has made it possible for the solar heating design developed and implemented by the Netherlands Scientific Research Center in Groningen. It is expected that the residential areas of the city will use a large amount of solar heating stored underground by collectors. The collector consists of transparent tubes with black wicks. About 15,000 such collector tubes have been installed on top of 96 residential buildings.