Patent
Direct expansion solar collector-heat pump system
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TLDR
In this article, a solar collector-heat pump heating system is described, which comprises metallic plates which are directly exposed to the ambient atmosphere and which are in direct heat exchange relation with tubes.Abstract:
A solar collector-heat pump heating system which comprises metallic plates which are directly exposed to the ambient atmosphere and which are in direct heat exchange relation with tubes. A compressor receives a heated low-boiling working fluid, e.g., R-22, from the tubes as a vapor, compresses it and delivers it to a condenser. The fluid then passes through a throttling valve where it partially vaporizes, then to the tubes, where vaporization continues, utilizing heat absorbed by the plates from solar radiation, the ambient air, rain, and long-wave infrared radiation. Heat is extracted from the condenser and used for space heating. Preferably, heat storage means, e.g., a tank of water or a body of low-melting salt, are provided. Preferably, the heat-absorbing plates are long and narrow. In one embodiment they are spaced from a diffuse reflective backing and are laterally spaced from each other. In another embodiment they form a siding for a building. When heat storage is provided, the system can also serve for cooling by reversing the flow of the working fluid and rejecting heat through the plates at night.read more
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Radiation heating and cooling system
TL;DR: In this paper, a radiation unit was used to transfer heat from and to the universe by means of a radiation generator and a radiator unit, which was an improvement upon a co-pending application Serial No. 415,433, filed October 17, 1941, now Patent No. 2,342,211.
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