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Future Solar BBQ

The idea of this event is to organize a solar barbecue one day this summer (hopefully there will be a summer this year).

Note: This event has already been postponed for 2 consecutive years. :-(

Summary

1. Organization
- making a list and finding or making plans of the ovens/furnaces/deathrays to be built
- organizing the necessary material
- building one group per oven

2. Building
- Meet one or two days to build the ovens

3. The BBQ
- Make a solar BBQ-Party on one week-end
- Make this event open for everyone, not only the people that built the ovens

Organization

Please add your availabilities for a building date and for the BBQ.

Building

[solar-bbq-building-date]
NomSat 17.7Sun 18.7Sat 24.7Sun 25.7Sat 31.7Sun 01.8Sat 07.8Sun 08.8Sat 14.8Sun 15.8
Falko Henschke2010-07-11 20:48:172010-07-11 20:48:172010-07-11 20:48:172010-07-11 20:48:17    2010-07-11 20:48:172010-07-11 20:48:17
Erik Rossen        2011-06-30 17:37:492011-06-30 17:37:49
Laure      2010-08-01 22:19:372010-08-01 22:19:372010-08-01 22:19:372010-08-01 22:19:37
Freddy & Cécile  2011-07-19 14:57:472011-07-19 14:57:47  2011-07-19 14:57:472011-07-19 14:57:472011-07-19 14:57:472011-07-19 14:57:47
Woopie     2011-10-22 10:20:04    
 112212244

The BBQ

[solar-bbq-date]
NomSat 14.8Sun 15.8Sat 21.8Sun 22.8Sat 28.8Sun 29.8
Falko Henschke2010-07-11 20:48:282010-07-11 20:48:282010-07-11 20:48:282010-07-11 20:48:282010-07-11 20:48:282010-07-11 20:48:28
Erik Rossen2010-07-12 11:20:222010-07-12 11:20:222010-07-12 11:20:222010-07-12 11:20:222010-07-12 11:20:222010-07-12 11:20:22
Paul Bristow    2011-07-01 14:20:192011-07-01 14:20:19
 222233

The ovens

Description Team Members
Oven 1 satellite dish grill Falko
Oven 2 fresnel-lens grill Erik
Oven 3 no description yet

Here are some of the design ideas:

Oven 1

Old satellite dish + aluminium foil = big parabolic mirror This solution seems to be the most cost-efficient alternative to concentrate sun light. Let's see if it actually works.

Oven 2 - The fresnel-lens grill

The simplest box-shaped solar ovens allow one to cook to near-boiling temperatures, but they do not permit a nice grilled texture, typical of a BBQ. This oven based on a fresnel lens is meant for “high-speed” cooking and grilling.

The photos and video below show a preliminary test of grilling a merguez sausage for 5 minutes on a black cast-iron frying pan using a 1-metre diameter acrylic fresnel lens. The result is not very different from frying over an electric range. The merguez tasted the same as always, but it was a little dry. I think it would have been better if I had cooked for only 3-4 minutes.

The main challenge will be to build a practical frame for holding the lens and the cooking stage.

solarbbq-merguez-and-fresnel-lens-before.jpg solarbbq-merguez-after.jpg Video of frying a merguez with a Fresnel lens

Oven 3

events/solar_bbq.txt · Dernière modification: 2012/04/11 13:46 par rossen