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مکانیک::
اجاق سهمی خورشیدی
Moreover, an economic study is performed for different scenarios in Lebanon (home, hotel, restaurant and snack) and for several categories of solar cookers (solar box cooker, solar panel cooker, parabolic solar cooker and evacuated tube solar cooker with thermal storage).
Fig. 6 shows a schematic drawing of the parabolic solar cooker.
Parabolic solar cooker is characterized by short cooking time due to the high temperature that it can be achieved.
For example, four cooking units can be placed in solar box cooker while only one pot can be located in a parabolic solar cooker.
On the other hand, regardless to the cooking site, parabolic solar cooker and indirect evacuated solar cooker have the highest payback period due to the fact that they have high cost, and solar parabolic cooker accommodates one cooking pot which requires more than one cooker in some scenarios and thus increases its cost.
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