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Absorption refrigerator
Videos
An absorption refrigerator is a refrigerator that uses a heat source to provide the energy needed to drive the cooling process. Solar energy, burning oil, waste heat from factories, and district heati
Domestic absorption refrigerator 1. Hydrogen enters the pipe with liquid ammonia 2. Ammonia and hydrogen enter the inner compartment. Volume increase causes a decrease in the partial pressure of the liquid ammonia. The ammonia evaporates, taking heat from the liquid ammonia (ΔHVap) lowering its temperature. Heat flows from the hotter interior of the refrigerator to the colder liquid, promoting further evaporation. 3. Ammonia and hydrogen return from the inner compartment, ammonia returns to absorber and dissolves in water. Hydrogen is free to rise.
Domestic absorption refrigerator 1. Hydrogen enters the pipe with liquid ammonia 2. Ammonia and hydrogen enter the inner compartment. Volume increase
Thermal image of a Domestic absorption refrigerator of a comparable type to the one in the labelled image above. Colour indicates relative temperature
Thermal image of a Domestic absorption refrigerator of a comparable type to the one in the labelled image above. Colour indicates relative temperature: blue=cold, red is hottest. The heat source (7) is contained entirely within the insulation section (6).
Icyball
Videos
Icyball is a name given to two early refrigerators, one made by Australian Sir Edward Hallstrom in 1923, and the other design patented by David Forbes Keith of Toronto. Keith's design was manufactured
Absorption refrigerator
…gal) of water to just above freezing for 24 hours in a 30 °C (86 °F) environment. The concept was similar to an early refrigeration device known as an Icyball. Common absorption refrigerators use a refrigerant with a very low boiling point (less than −18 °C (0 °F)) just like compressor refrigerators. Compression…
A Crosley IcyBall with cold side ball on left, hot side ball on right
A Crosley IcyBall with cold side ball on left, hot side ball on right