Heating systems – Miscellaneous – Special liquid
Patent
1975-07-24
1977-12-27
Sprague, Kenneth W.
Heating systems
Miscellaneous
Special liquid
60641, 62 4, 126271, 126263, 165 2, F24J 302
Patent
active
040650537
ABSTRACT:
A fixed, linear, ground-based primary reflector having an extended curved-sawtooth contoured surface covered with a metallized polymeric reflecting material, reflects solar energy to a movably supported collector that is kept at the concentrated line focus of the reflector primary. The primary reflector may be constructed by a process utilizing well-known freeway paving machinery. The solar energy absorber is preferably a fluid-transporting pipe. Efficient utilization leading to high temperatures from the reflected solar energy is obtained by cylindrical shaped secondary reflectors that direct off-angle energy to the absorber pipe. To obtain higher temperature levels, refocusing secondary reflectors, that cause a series of discrete spots of highly concentrated solar energy to fall on the fluid-transporting pipe, are utilized. A seriatim arrangement of cylindrical secondary reflector stages and spot-forming reflector stages produces a high temperature solar energy collection system of greater efficiency.
REFERENCES:
patent: 1047554 (1912-12-01), Nichols
patent: 2864671 (1958-12-01), Mohlman
patent: 3075361 (1963-01-01), Lindberg, Jr.
patent: 3182654 (1965-05-01), Culling
patent: 3868823 (1975-03-01), Russell, Jr. et al.
Fletcher James C.
Miller Charles G.
Stephens James B.
Grifka Wilfred
Manning John R.
Mott Monte F.
Sprague Kenneth W.
Yeung James C.
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