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      Question

      The "Zero Energy Cooling Chamber" (ZEC

      • C works based on the cooling effect of:
      A High-speed vacuums Correct Answer Incorrect Answer
      B Mechanical compressors Correct Answer Incorrect Answer
      C Liquid evaporation Correct Answer Incorrect Answer
      D Nitrogen gas Correct Answer Incorrect Answer

      Solution

      This low-cost technology uses the evaporation of water from porous walls (usually brick and sand) to lower temperatures. It is highly effective in hot, dry climates for small-scale storage.

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