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印度科学家研制成一台“不用电”的冷冻机。经改进后,可用作家庭制冰机。这台机器完全靠太阳能运转,因此,实际上是免费运转。 该机的致冷基本原理和通常的冷冻机是相同的:冷冻剂在低压下通过绕在冷冻器上的冷冻管循环,由于压力低,便蒸发为汽体,结果从冷冻器吸收走热量。这同人们扇扇蒸发汗水,从而降低温是一个道理。
Indian scientists developed a “no electricity” freezer. Improved to be used as a home ice maker. This machine runs entirely on solar energy, so it’s actually free. The basic principle of the machine is the same as a normal freezer: the refrigerant circulates through the freezer at low pressure around the freezer, evaporates into a vapor due to the low pressure and as a result absorbs heat from the freezer. It is a truth that fan-sweat evaporates with people.