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US 4,306,543 AGranted
Solar collector
AssigneeU.S. Philips Corporation
InventorsRobrecht M. L. Doevenspeck, Jan J. B. Fransen
Life of this patent
Estimating the term…
Abstract
There is provided a solar collector comprising an absorber, a getter, and a heating element arranged within an evacuated transparent envelope, the heating element being positioned separate and apart from the getter. Associated with the envelope is means to heat the heating element to a temperature of 500.degree. to 2000.degree. C. in order to crack any hydrocarbons formed from gaseous contaminants released by the envelope and the absorber during operation.
Claims6
A solar collector which comprises an evacuated transparent envelope;
- an absorber arranged within said envelope;
- a duct arranged at least partially within said envelope and containing a heat-transport medium, said absorber being associated with said duct so as to transfer heat derived from incident solar radiation to the heat transport medium in said duct during operation;
- a getter positioned within the envelope;
- a heating element arranged within said envelope separate and apart from said getter;
- and means to heat said heating element to a temperature of 500.degree. to 2000.degree. C. in order to crack any hydrocarbons formed from gaseous contaminants released by said envelope and said absorber during operation.
2 more elements
Dependencies are inferred from the claim text.