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Einstein refrigerator
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The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invente
Annotated patent drawing Butane ammonia vapor Butane ammonia liquid Moist ammonia gas Ammonia water solution Cool ammonia depleted water Warm ammonia depleted water Cooling water
Annotated patent drawing Butane ammonia vapor Butane ammonia liquid Moist ammonia gas Ammonia water solution Cool ammonia depleted water Warm ammonia
Absorption refrigerator
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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
Einstein refrigerator
…The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein…
Domestic absorption refrigerator 1. Hydrogen enters the pipe with liquid ammonia 2. Ammonia and hydrogen enter the inner compartment. Volume increase
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.
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).