2007年11月1日
来自德国达姆施塔特技术大学的大约30名学生，由托马斯·哈特科普（Thomas Hartkopf）教授（可再生能源）和曼弗雷德·赫格（Manfred Hegger）和曼弗雷德·赫格（Manfred Hegger）（建筑）领导，赢得了华盛顿特区在美国部门举办的为期一周的国际“太阳能十项全能2007”。能源，竞争奖励奖励特别节能和可持续的房屋。学生融入了他们的80平方米房屋50平方米的房屋巴斯夫的innovative Micronal® PCM SmartBoard™ gypsum wall boards plus a Micronal PCM SmartBoard-modified chilled ceiling developed by Zwickau-based Ilkazell Insulation Technology GmbH.
The Darmstadt team held their own against 19 universities from the United States, Canada and Spain. When designing their award-winning house, the students wanted above all to develop a home that consumed as little energy as possible but nevertheless provided maximum comfort. This is precisely what Micronal PCM SmartBoard offers: the gypsum wall board contains the phase change material Micronal PCM in the form of microscopically small wax spheres in an acrylic polymer shell. At a pre-defined switching temperature of 23°C, the wax melts and absorbs excess energy from the room in the form of heat.
在Darmstadt太阳能房屋的设计中，相变材料在保持所需的室内温度恒定水平方面发挥了关键作用。欧洲杯足球竞彩为了将存储在融化的蜡中的热量从屋子里运出，学生使用了一个高度复杂的系统：在白天，他们在16°C的温度下从水箱从水箱中用冰冷的天花板元素将冷水吹扫，，通过这种方式积极冷却房屋。到了晚上，他们将加热的水用在屋顶上的太阳能电池上，其中一部分蒸发了。随后的蒸发热损失使剩余的水冷却了，该水被管道回到水箱中。
Additional advantages of the BASF product: by installing 15 mm SmartBoard gypsum wall boards, the Darmstadt designers stored as much heat in their solar home as a 90 mm concrete wall. The gypsum wall boards also provided the architectural freedom of design necessary for the competition.