Solar Parabolic Reflector

By Alan S. Burford

A.S Engineering

A.A.S Computer Aided Drafting and Design (pending)

Material Thermal Conductivity(W/moC)

Admiralty (71 Cu - 28 Zn - 1 Sn) 111

Aluminum 202

Aluminum brass (76 Cu - 22 Zn - 2 Al) 100

Brass (70 Cu - 30 Zn) 99

Carbon Steel 45

Carbon-moly (0.5 Mo) 43

Chrome-moly steel (1 Cr - 0.5 Mo) 42

Chrome-moly steel (2 1/4 Cr - 0.5 Mo) 38

Chrome-moly steel (5 Cr - 0.5 Mo) 35

Chrome-moly steel (12 Cr - 1 Mo) 28

Copper 386

Cupro-nickel (90 Cu - 10 Ni) 71

Cupro-nickel (70 Cu - 30 Ni) 29

Inconel 19

Lead 35

Monel (67 Ni - 30 Cu - 1.4 Fe) 26

Nickel 62

Red Brass (85 Cu - 15 Zn) 159

Stainless Steel, type 316 (17 Cr - 12 Ni - 2 Mo)

16

Stainless Steel, type 304 (18 Cr - 8 Ni) 16

Titanium 19

Typical Floor Design

Conventional System

This parabolic solar concentrator dish collects about 3 square meters of sunlight. At 100% efficiency it should produce about 3000 watts of power or 10242 BTU per hour. In actuality it produces about 1873 watts or 6391 BTU per hour. This is a system efficiency of about 62%.Experiment date 9/25/07Ambient temp 65˚F 83 pounds of water(This is about 10 gallons at 8.33 pounds per gallon.)1 BTU raises 1 pound of water 1˚F 77˚F change of 83 pounds of water = 6391 BTUBTU / hour to Watts = BTU / hour x 0.293Watt-hours to BTU = Watts x 3.4141873 actual watts / 3000 potential watts = 62.4% efficiency

1873 watts of solar thermonuclear radiation was being collected at the focal point by the collector coil.

Example of Parabolic Dish

MY DESIGN

EXTRA FEATUREScan adjust to suns direction