Heating systems – Automatic control – Heat source is a reverse cycle refrigerating system or heat...
Patent
1980-08-29
1983-10-25
Makay, Albert J.
Heating systems
Automatic control
Heat source is a reverse cycle refrigerating system or heat...
237 1R, 623242, 122 21, G05D 2300, F25B 1300
Patent
active
044113846
ABSTRACT:
A cycle for a heat driven heat pump using two salts CaCl.sub.2.8NH.sub.3 and ZnCl.sub.2.4NH.sub.3 which may reversibly react with ammonia with the addition or evolution of heat. These salts were chosen so that both ammoniation processes occur at the same temperature so that the heat evolved may be used for comfort heating. The heat to drive the system need only be slightly hotter than 122.degree. C. The low temperature source need only be slightly warmer than 0.degree. C.
REFERENCES:
patent: 4319626 (1982-03-01), Papazian et al.
Haas, W., Jaeger, F., Howerton, M., Thermochemical Energy Storage and Heat ump System Using Ammoniated Salts, Solar Energy Storage Options D.O.E., San Antonio Texas, pp. 473-487, Mar. 19-20, 1979.
Bowgard, Solar Energy and Low Level Cyclic Energy Flow (20.degree. to 100.degree. C.) Storage as Chemical Bond Energy of Compounds Undergoing Thermal Decomposition, Feb. 1979, pp. 165-189.
Hiller, C. & Clark, E., "Chemical Heat Pump/Chemical Heat Storage System", American Chemical Society, 1979.
Brown, F., "Methanol Based Heat Pump for Storage of Solar Thermal Energy", American Chemical Society, 1979.
Beers Robert F.
Bennett Henry
Lall Prithvi C.
Makay Albert J.
McGill Arthur A.
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