抄録
As it looks that the freezing method may have lower energy requirements and less equipment scaling and corrosion compared with distillation, a small vacuum freezing condensing equipment driven by a 5 HP compressor is constructed based on five years' experiments on the heat pump for the purpose of getting data on heat balance, efficiency and others necessary for the application of the process of vacuum freezing condensation. The freezer uses a revolving drum in which methyl chloride is evaporated through a direct expansion system. The demineralizator uses a series of separators for vibration, vacuum filtration, and continuous centrifugal separation. The total energy of condensing 1 liter of water from saline water is 50 watts-hour. However, through the freezing-system only 15 watts-hour is enough in this apparatus. In 100 HP epuipments on this method it is expected to reduce the energy to 12 watts-hour.
