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Power converter apparatus |
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Power factor correction for variable speed drive |
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Wiring system for electrically operated devices comprising heating resistances |
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Reference point potential compensating circuit for use with phase controller |
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Manual control device for a watch movement |
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Demand drive component |
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Thermoforming apparatus |
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Solar reflector collector
| Details |
Inventors: Scott, William J.;
Assignee:
Primary Examiner: O'Dea; William F.
Assistant Examiner: Jones; Larry
Attorney, Agent or Firm: Haefliger; William W.
A highly efficient solar reflector collector comprises: (a) a receptacle, (b) a first translucent panel in the receptacle to pass solar radiation into the receptacle interior (c) auxiliary panel means extending within the receptacle to form first and second chambers at opposite sides of the second panel means and within the receptacle, (d) heat reflecting material in the receptacle facing said panels, and (e) fluid passing tubing stretches in said chambers to receive solar radiation transmitted through said panels and to receive radiation reflected from said material, the tubing stretches extending in such close relation as to radiate heat between themselves while passing radiation therebetween for impingement on and reflection from said reflecting material. |
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DETAILED DESCRIPTION In the drawings, a solar reflector collector 10 comprises a receptacle 11 having a bottom wall 12, side walls 13 and end walls 14. The receptacle is shown as rectangular, but may have other shapes; also, the wall material may consist of wood or other insulative substance such as plastic. A first translucent panel 15 extends across the top of the receptacle and may for example be retained in position against the wall rims 13a and 14a as by a seal or retainer 16, as shown. Second and third translucent panels 17 and 18 extend across the interior of the receptacle in closely spaced parallel relation, to provide a vapor chamber 19 therebetween. An upper heating chamber 20 is formed between panels 15 and 17, and a lower, super-heating chamber 21 is formed beneath panel 18, the vertical height of chamber 21 being such as to accommodate multiple (as for example two) layers of tubing stretches, whereas the vertical height of chamber 20 typically being less than that of chamber 21 to accommodate a lesser number (as for example one) layers of tubing stretches. Longitudinally extending, laterally spaced upright supports 22 in chamber 21 support panel 18, and spacers 22a in chamber 19 support panel 17. The bottom and side walls of the receptacle are typically lined with reflective material, as for example sheeting such as aluminum foil at 23-25. Accordingly, sunlight entering the receptacle and striking the reflective material at an angle will be reflected, ordinarily to impinge ultimately on the infra-red radiation absorbing tubing stretches which may be darkened to efficiently absorb such solar radiation. Note that the tubing stretches are strategically located within the chambers 20 and 21 to "capture" a maximum amount of the radiation entering the receptacle, whether by direct impingement on the pipe or tubing stretches without prior reflection, or by indirect impingement after such reflection or after multiple reflection from different reflective areas. Also, the stretches radiate infra-red rays for direct impingement on other pipe stretches or indirect impingement on other pipe stretches after reflection, so that virtually no heat is lost once it enters the receptacle
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