Quizzes & Puzzles3 mins ago
radiators
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shouldnt radiators be called convectors seeing as they actually work on convection and they dont radiate heat out from them? and also, how does an oven work? because it cant be convection because the grill is at the top and that would mean the food gets cooked in cold air?
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For more on marking an answer as the "Best Answer", please visit our FAQ.Yes, radiators should be called 'convectors' - proportionally, very little energy is radiated.
An oven cooks by conduction - food is heated from the outside in, hence "cooked through".
Grills cook by a combination of conduction and radiation. The (proportionally) greater amount of energy radiated out by a grill, compared with, say, an oven, means that items will 'char' quickly. So that bread toasts, cheese melts and browns, and sausages turn black when I forget about them.
The 'glow' from a grill, whether gas or electric, is an indication that energy is being radiated.
Grills cook by a combination of conduction and radiation. The (proportionally) greater amount of energy radiated out by a grill, compared with, say, an oven, means that items will 'char' quickly. So that bread toasts, cheese melts and browns, and sausages turn black when I forget about them.
The 'glow' from a grill, whether gas or electric, is an indication that energy is being radiated.