Appendix C - Appendix A Explanations of the variables in...

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Appendix A Explanations of the variables in equations I. ambient g g sb sb g io T A U A U g A I T + + = ) )( )( ( 0 α τ 1. io T - The temperature inside the oven 2. o I - Incident solar power density ( 2 meters watts ) 3. g A - Area of the glazing 4. - Transmissivity of the glazing 5. - Absorptivity of the black paint 6. g – gain of the reflectors 7. sb U - Overall heat transfer coefficient through the side and bottom 8. sb A - Overall area that the power flows through the side and bottom 9. g U - Overall heat transfer coefficient through the glazing 10. ambient T - The ambient temperature outside of the box II. COST T T PI ambient io - = 1. PI = Performance Index 2. Appendix B Prices of the various materials used in the solar oven project $2.25 for each 1.2 m by 1.2 m sheet of cardboard $0.25 for each 8½ by 11 sheet of transparency
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$0.25 for metal plate inside the oven $0.10 cost of assembly of each cardboard part. Appendix C Dimensions of the solar oven I. Cooking Chamber 5cm 15cm The internal cooking chamber had a dimension of 15cm x 15cm x 5cm. This gives the cooking chamber a volume of 1125 3 cm . It was constructed using six pieces of cardboard that was cut to the proper dimensions. This was cover with copper foil and painted black.
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Appendix C - Appendix A Explanations of the variables in...

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