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并不精巧的裝置几十年來,有过許多学者和工程师从事研究制造利用太陽輻射能的装置。其中有一些已經在南方地区应用了。最廣泛应用的一种裝置是热水器。在一个嵌玻璃的箱子里,放着些铁管,它們和塗成黑色的铁板联在一起。在太陽照耀下,铁板和铁管就被晒热,这样就使铁管里的水变热。于是热水上升進入到用羊毛、棉花或其他随便什么隔热材料包裹起來的蓄水槽里,而比较冷的水就不断地从水槽流入铁管。像这样,蓄水槽里的水能够加热到50—60℃。每平方米面積的热水器一天可以加热75—80升的水。在南方地区还利用陽光蒸餾器。在它里面,太陽光的热使容器内不適于飲用的水(例如海水或者咸泉水)蒸
Non-exquisite devices For decades, many scholars and engineers have engaged in the research and manufacture of devices that use solar radiation. Some of them have already been applied in the southern region. One of the most widely used devices is a water heater. In a glass-lined box, iron pipes were placed and they were joined with black iron plates. When the sun shines, the iron and iron pipes are exposed to heat, which warms the water in the pipes. Hot water then rises into a water storage tank wrapped in wool, cotton, or any other insulating material, and the colder water continuously flows from the tank into the iron pipe. In this way, the water in the water tank can be heated to 50-60°C. Water heaters per square meter area can heat 75-80 liters of water a day. Solar stills are also used in the south. In it, the heat of sunlight makes steamy water (such as seawater or salty spring) in the container