The present work reports the thermal performance of a box-type solar cooker insulated with kapok
wool, a local plant with a low thermal conductivity. The experimental results obtained indicate that
the absorber plate reached a maximum temperature of 155.2 °C. Moreover, the maximum power of
the cooker was 87.5 W with an efficiency of 35.45 %. The first and second figure of merit
parameters performed are 0.15 and 0.298 respectively. The cooking test carried out on eggs and
rice was conclusive. And it appears that this solar cooker can cook an average of 464 meals per
year thanks to the solar energy available in Burkina Faso corresponding to a reduction of 67.62 %
in household fuel wood consumption.

Solar cookers; fuel wood; performance; solar energy.