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  3. Thankfully for lovers of coolness, air conditioning is becoming more efficient. In the past 30 years, more rigorous standards fo

Thankfully for lovers of coolness, air conditioning is becoming more efficient. In the past 30 years, more rigorous standards fo

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问题    Thankfully for lovers of coolness, air conditioning is becoming more efficient. In the past 30 years, more rigorous standards for air conditioners in developed countries have more than doubled the energy efficiency of new units. For decades, air conditioning has used the same compressor technology that runs fridges. But Coolerado, an American company, claims to have cut energy costs by 90%, using only water for the cooling procedure: its devices feature specially designed plastic plates that chill by evaporation. They discharge half the air, warm and wet, back outside and send the rest, cool and dry, inside. The machines can even be solar powered though their thirsty habits may not suit all hot places.
   Conventional air conditioning has to cool the air in order to rid it of moisture and that is the most expensive part of the process. An Israeli-founded firm called Advantix says its machines cut energy consumption by half, using "liquid drier" technology.
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答案感谢凉爽爱好者们，空调正变得越来越高效。在过去的30年中，在发达国家，对空调更为严格的标准使得新生产的空调能效提高了一倍以上。几十年来，空调一直沿用和冰箱一样的压缩机技术。但美国一家名为Coolerado的公司宣称通过用水作为冷却步骤，已经将能耗降低了90％，这种空凋设备的特别之处在于采用了专门设计的塑料板，通过蒸发来降温。空调将湿热空气喷出去，将室外干冷的空气带到室内。这种机器甚至可以由太阳能供电，尽管它们对水分的“饥渴”要求可能不适用于所有炎热的地方。 传统的空调需要将空气冷却以除去其中的水分，这是整个制冷过程中最为昂贵的一步。一家成立于以色列的名为Advantix的公司称运用“液体除湿”技术的机器能将能耗降低一半。
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