Stoves and furnaces – Heaters – Surface
Patent
1977-01-25
1979-04-17
Yeung, James
Stoves and furnaces
Heaters
Surface
237 1A, 350288, 350299, 126400, F24J 302
Patent
active
041495217
ABSTRACT:
A fixed, linear, ground-based primary reflector having an extended curved sawtooth-contoured surface covered with a metalized 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.
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Fletcher James C. Administrator of the National Aeronautics and Space
Miller Charles G.
Stephens James B.
Grifka Wilfred
Manning John R.
Mott Monte F.
Yeung James
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