how does a solar cooker? Also find out the type of mirror used in solar cooker?
Answers
Explanation:
Concave mirrors are the best mirrors to use in these cookers. This is because they are the only types of mirrors that reflect sunlight in towards a single focal point. If you use a convex mirror for your cooker, it will not work since they do not have a focal point
Concave mirrors are used
How do solar cookers work?
Solar cookers use reflectors to absorb and focus sunshine
Solar cookers come in all shapes and sizes but they all work on the same principle. Large reflectors are used to absorb sunlight and then focus it on a small area.
The power of the sun's rays striking the earth can produce energy levels of up to a kilowatt on each square meter of the planet's surface. This is the equivalent of just half the energy output of a modern electric hot plate. That is why sunlight first needs to be collected and concentrated on a small area if it is to be used for cooking.
Reflectors or mirrors are the best way to do it. Solar cookers can be outfitted with reflectors ranging from high-quality ones such as anodized aluminum plates, which reflect 95 percent of the sun's radiation, to inexpensive tin foils, which reflect just 50 percent. The latter, however, requires longer cooking times.
A solar cooker that uses a parabolic reflector with a diameter of one and a half meters can absorb energy levels of up to two thousand watts during periods of intense sunshine. It then concentrates it onto a cooking surface.
Solar cookers in India
Depending on the quality of the reflector, between 750 to 1500 watts of energy is produced on the cooking surface, allowing for three liters of water to boil in 10 to 20 minutes.
Solar oven produces enough heat to melt metal
By contrast, a reflector with a diameter of half a square meter can produce just 200 watts in a simple cooking pot with a tin lid. That means it would take at least an hour to get those three liters of water up to a boil.
Another option is to use a solar oven, like the one developed at the Cologne-based German Aerospace Center, which boasts a high level of energy efficiency. A massive reflector with an area of 57 square meters absorbs sunlight and focuses it on a small surface measuring just a few square centimeters.
Mark it as the brainliest