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51.4 MB (4.6 MB compressed)
3648 x 4929 pixels
31.0 x 41.7 cm ⏐ 12.2 x 16.4 in (300dpi)
ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Refrigerator cooling fans. These fans (black slats covering fridge) are at the rear of the fridge. They cover coils of pipes that contain a coolant gas that has removed heat from inside the fridge. This is done by circulating the gas through a set of internal and external pipes. In the internal pipes the gas evaporates and this causes a large drop in temperature. In the external pipes, excess heat is removed by the fans. The gas is compressed in a compressor (bottom centre) before being piped back into the internal pipes for evaporation and more cooling. Electricity is used to run the pump, compressor and fans.
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