Curnutt Furnace Update: Free Steam, Winter Heat
by Sean Capogreco

October 2004
End of Summer
10/27/04
-- This summer's season of building was exhaustive, expensive, time
consuming, yet lots of fun and tremendously educational.
The dish that I referenced in July is mostly completed, now I am
adding fine tuning adjustments and modifying the plumbing. It is not
difficult at all to make steam for free. With winter inbound I'm curious
the savings I can generate through winter heating utilities.
As far as my current dish stands I've been able to make temperatures
into the 930f range and steam pressures up to 40 lbs. Short term goals
are a nose wheel and auto tracking control.
Record Temperature
12/05/04 -- Same batch of mirrors now reaches 1060F on a clear day.
Soon to add another 11 Sq feet bringing the total collected area from 37
Sq feet to 48.
As winter set in Skies are clearer and guess what? The sun being
closer in wintertime must be lending itself to generate higher
temperatures when we need them.
Ambient temperature makes NO DIFFERENCE.

Figure 48d |

Figure 48e |

Figure 48f |

Figure 48g |

Roasting marshmallows
This is fun.
Sean Capogreco