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What are solar ovens?

2 posts
07/02/2017 20:05
I intend spending more time on my boat, and obviously I'm keen to keep the expenses down. Someone suggested I get and use a 'Solar Oven' Sounds great, but I failed to ask them exactly what they are, how efficient they are and of course how much they are.
Any information would be greatly appreciated.
52 posts
15/02/2017 23:45
Solar cooking is done by means of the suns UV rays.

A solar cooker lets the UV light rays in and then converts them to longer infrared light rays that cannot escape. Infrared radiation has the right energy to make the water, fat and protein molecules in food vibrate vigorously and heat up.

It is not the sunís heat that cooks the food, nor is it the outside ambient temperature, though this can somewhat affect the rate or time required to cook, but rather it is the suns rays that are converted to heat energy that cook the food; and this heat energy is then retained by the pot and the food by the means of a covering or lid.

This occurs in much the same way that a greenhouse retains heat or a car with its windows rolled up. An effective solar cooker will use the energy of the sun to heat a cooking vessel and efficiently retain the energy (heat) for maximum cooking effectiveness.
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