THE PERFORMANCE OF A BOX-TYPE SOLAR COOKER WITH AUXILIARY HEATING

In Bangladesh it is very difficult to use solar cookers during the mon ths when the days are generally cloudy and at times solar cooking beco mes impossible. To overcome such problems for a box-type solar cooker, we have used an auxiliary source of energy inside it. This is done wi th the help of a built-in heating coil inside the cooker or a retrofit electric bulb in a black painted cylinder. It is found that the use o f auxiliary sources allows cooking on most cloudy days. (C) 1997 Elsev ier Science Ltd.