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吸收式制冷机的缺点之一,是起动前需要一个加热的准备阶段。也就是说,从早晨收集太阳能开始,受热媒质必须达到某一定温度,集热器才能向吸收式制冷机供给热量。此时,如果机械还未达到足够高的温度,再生过程和吸收过程仍不能很好地进行。在夏季晴天,太阳热开始供给冷风的时间往往已是上午十一点钟左右。可是,到十一点钟假如天气晴转阴,太阳能空调就不可能发挥作用了。
One of the drawbacks of absorption chillers is the need for a heating preparation phase before starting. In other words, from the morning to collect solar energy, the heating medium must reach a certain temperature, the collector can supply heat to the absorption chiller. At this point, if the machine has not reached a sufficiently high temperature, the regeneration and absorption processes are still not well performed. In sunny summer months, it is often around 11 o’clock in the morning when the solar heat begins to supply cold winds. However, by eleven o’clock, if the weather turns cloudy, solar air conditioners will not work.