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Part B Think about the design that worked the best. Could you improve the best design and raise its internal temperature? Think about what materials you could use to improve the design. Here are some things to consider: How does the size of the reflective surface affect the temperature of the oven? Would insulating the oven help it retain heat, or would more heat be lost? Would a tighter or a looser cover heat the oven faster? How about no covering at all? Describe how you plan to improve the efficiency of the best oven design.

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fayahsavaughn

Answer:

One reason for Jennelle's designs working better is because her aluminum foil sunlight reflector was larger. So. the size of the reflective surface does affect the temperature of the oven. For any given design, the larger the insolated area, the greater the power. Meaning a smaller cooker only collects a small amount of sunlight; no matter how good the design. 

That is one reason why the parabolic solar oven design works so well. Parabolic solar cookers use a parabolic-shaped reflector to direct sunlight to a small area in order to generate heat for cooking. They are able to reach temperatures as high as 400°F. 

Insulating the oven would help it retain heat. Insulation lets you collect more heat and light energy, which allows you to raise the temperature to even higher levels. So, insulation is anything that lets you "hold on to" that collected heat and lose less of it.

A tighter cover would heat the oven faster rather than a looser cover. The parabolic design doesn't have a cover, although the food itself is usually in a pot or container.  

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