I went down a rabbit hole and ended up at an interesting site:
http://www.physics.byu.edu/research/energy/
Solar Funnel Cooker invented by Dr. Jones (1990's), including plans to build your own, discussed here: http://solarcooking.org/plans/funnel.htm . This paper explains how the same funnel can be used to make ice at night (with air temp about 50 F or less). Start with cardboard and foil cut to about 2 X 4 (0.6m X 1.2 m) OR start with Aluminized windshield reflector and cut so length is just twice the width (photo below, putting oven-safe plastic bag over painted-black canning jar on circular rack).
Dr. Jones has given several hundreds of the aluminized-mylar Solar Funnel Cookers to families in developing countries in Haiti, Bolivia, Kenya, Turkey and Ecuador, with the most recent solar-cookers given to folks in Mali (2006, see photo below) and Mozambique (2007). More will go to help refugees who have fled from Iraq and/or Kenya. Updates: http://solarcooking.org/saveheat.htm and especially http://solarcooking.org/research/McGuire-Jones.mht .
The latter paper compares the solar cooker made with windshield-reflector (OK) with the cardboard-and-aluminum-foil cooker (better), and it discusses a simple box cooker for low-sun days using just FOUR charcoal briquettes (see photos and data-graph below)...
Shall we be nice to refugees or no?
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- Level 34 Illuminated
- Posts: 5247
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- Level 34 Illuminated
- Posts: 5247
Re: Shall we be nice to refugees or no?
https://www.lds.org/refugees
I Was a Stranger—An Effort to Help Refugees
“For I was an hungered, and ye gave me meat; I was thirsty, and ye gave me drink; I was a stranger, and ye took me in; Naked, and ye clothed me; I was in prison, and ye came unto me.” Matthew 25:35-36
I Was a Stranger—An Effort to Help Refugees
“For I was an hungered, and ye gave me meat; I was thirsty, and ye gave me drink; I was a stranger, and ye took me in; Naked, and ye clothed me; I was in prison, and ye came unto me.” Matthew 25:35-36
- kittycat51
- captain of 1,000
- Posts: 1845
- Location: Looking for Zion
Re: Shall we be nice to refugees or no?
I was a bit confused by your OP title, and then you start talking about making ice? I thought maybe you hadn't taken your meds yet this morning.
:p :ymparty:
Nice save though.
In answer to your posts question...YES.
:p :ymparty:
Nice save though.
In answer to your posts question...YES.
- kittycat51
- captain of 1,000
- Posts: 1845
- Location: Looking for Zion
-
- Level 34 Illuminated
- Posts: 5247