A modified concentrating type solar oven for outdoor cooking

Conference · Thu Dec 01 04:00:00 EST 1983 · Alternative Energy Sources; (United States)

OSTI ID:6453230

Khalifa, A M.A.

Solar cookers offer a partial solution to many problems for the poor developing areas of the world. In these regions energy used for cooking sometimes comprises four fifths of the total energy demand. Solar cookers are generally four catagories: direct focusing, oven, ovenfocusing and indirect types. The direct focusing types failed to boil water under windy conditions due to excessive convection losses from the bare cooking pot placed at the concentrator focus. The oven type cookers, such as Telkes oven, observe the rules of energy conservation and thus are more efficient and less affected by windy weather. However, this oven suffers from two major problems. First, tilting the oven could cause food spillage unless a hinged support is used for the pot. This adds complication to the design of Telkes oven. Second, the solar radiation is added to the pot from the top for high solar altitude angles. This leads to poor heat transfer to the food inside the pot. The advantages of concentrating and oven cookers can be obtained by widding of a point focus concentrator to a new oven type receiver. In this paper the concept and design details of such an oven are introduced. Theoretical and experimental analyses of the developed cooker are given.

• Research Organization: King Abdulaziz Univ., Jeddah
• OSTI ID: 6453230
• Report Number(s): CONF-831205-
• Conference Information: Journal Name: Alternative Energy Sources; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140909* -- Solar Thermal Utilization-- Miscellaneous Solar Applications-- (1980-)
CONVECTION
DESIGN
ENERGY LOSSES
ENERGY TRANSFER
EQUIPMENT
FOCUSING
FOOD PROCESSING
HEAT LOSSES
HEAT TRANSFER
LOSSES
MASS TRANSFER
PERFORMANCE TESTING
PROCESSING
SOLAR CONCENTRATORS
SOLAR COOKERS
SOLAR EQUIPMENT
TESTING