Hybrid Car – More Fun with Less Gas

First panel

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Posted by Father Haskell on December 25, 2008, 5:19 am
28 x 30 thermosiphon box, scrap 2 x 4 frame, salvaged
double pane window sash.  Absorber = 1/4" plywood wrapped
with aluminum flashing sprayed barbecue black (smells
remarkably similar to Kingsford briquettes).

No sun to test, substituted a 500 watt halogen work lamp.
Shop temp = 60 F.  Plate temperature after 5 minutes
at 1 ft distance from lamp read 140, air temperature
110, using a quick read oven thermometer.

To put that in practical terms, a fender washer tied
to another string and lowered into the hot spot
became too painful to hold in less than 3 minutes.

Should be even more interesting tomorrow, with
actual sun.

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