Summary of " Performance and testing of a hot box storage solar cooker"

The general thrust of this article is that it is possible to cook into the evening using a solar cooker that has a used motor oil storage component as part of its design. The storage unit basically consists of a sealed volume of motor oil that sits in the bottom of the cooker. Adding this unit does not significantly affect the cooking temp during the hours of direct sunlight. The solar cooker with storage component was 23C higher than without from 1700 to 2400 h. Cooking trials seemed to indicate that the evening meal could be fully cooked between 1730 h and 2000 h using storage. I see this storage device as a potential add on and improvement which could be purchased by families as an incremental improvement to the product. alternatively this storage unit could be as simple as a sealed standard sized tin can around which the stove has been designed.