Abstract A typical solar energy flat plate collector whose volume is filled with a zeolite such as Linde Co.'s type 13X or LMS type 4A. The zeolite bed provides a means of chemical storage of solar energy for sunless periods through its potential "heat of adsorption". During sunless hours, stored energy in the form of latent heat of adsorption is released by allowing amounts of the adsorbate, water in this case, to be adsorbed by the zeolite bed. The zeolite bed is purged of this adsorbate during the sunny hours through the stagnation heat inside the solar collector and also by the purgative airflow through the bed, caused by a circulative system containing a radiator, a blower fan, a water atomizer and injector, and a water condenser that is passive through heatsinking to the ground below the building to be heated. Another mode for this system is described wherein the air in the building is circulated through the zeolite bed so that hydrocarbon pollutants are adsorbed and the air purified.
A solar thermal energy storage and collector system comprising, a collector housing having a gas inlet and outlet, said housing having therein a bed of zeolite material positioned to absorb heat produced by incident solar energy; a heat exchanger, means for circulating a gas through the heat exchanger, the housing inlet, the zeolite material, the housing outlet and back to the heat exchanger in a closed gaseous flow path, means for injecting atomized water into and condensing water vapor out of the circulating gas in mutually exclusive operation, said injecting and condensing means positioned in the flow path between the heat exchanger and the housing inlet, whereby the zeolite material releases the latent heat of adsorption to the gas upon exposure of the material to the water vapor containing gas, and whereby the zeolite material is purged of the adsorbed water by the combined action of the incident solar energy, the circulating gas, and condensing means, thus completing the solar heating and storage cycle.
Claim 2
Dependent Claim
164 words
A solar thermal energy storage and collector system comprising, a collector housing having a gas inlet and outlet, said housing having therein a bed of zeolite material positioned to absorb heat produced by incident solar energy; a heat exchanger, means for circulating a gas through the heat exchanger, the housing inlet, the zeolite material, the housing outlet and back to the heat exchanger in a closed gaseous flow path, means for injecting atomized water into and condensing water vapor out of the circulating gas in mutually exclusive operation, said injecting and condensing means positioned in the flow path between the heat exchanger and the housing inlet, whereby the zeolite material releases the latent heat of adsorption to the gas upon exposure of the material to the water vapor containing gas, and whereby the zeolite material is purged of the adsorbed water by the combined action of the incident solar energy, the circulating gas, and condensing means, thus completing the solar heating and storage cycle.