Vol. 1 No. 1 (2023): Dynamic Science and Engineering Infrastructure-base for Achieving Innovations

Performance Evaluation of Box-Type Solar Cookers Using Different Insulation Materials

Muhammad Ishaq
University of Maiduguri
cover page

Published 2023-10-11


  • Solar cooker ,
  • Insulation material,
  • stagnation test,
  • cooking power,
  • figure of merit

How to Cite

Ishaq, M., Oluwole , F. A., Amulah , N. C., & Bello, A. (2023). Performance Evaluation of Box-Type Solar Cookers Using Different Insulation Materials. Nigerian Journal of Science and Engineering Infrastructure, 1(1). Retrieved from https://njsei.naseni.gov.ng/index.php/nsjei/article/view/59


This study investigates the thermal performance of solar box cookers developed using sawdust, chicken feather, and groundnut shell, respectively as insulation materials. Stagnation tests and load tests were carried out to evaluate the cooker performance by determining first figure of merit (F1), cooking power, standardized cooking power and the thermal efficiency of the developed cookers. The F1 values for cookers A (which served as the control), B (sawdust), C (chicken feather) and D (groundnut shell) were found to be 0.099 °C m2/W, 0.129 °C m2/W, 0.114°C m2/W and 0.111°C m2/W, respectively. The standardized cooking power at 500C temperature difference for cookers B, C, and D were 42. 25W, 37.26W and 35. 25 W, respectively. Statistical analysis showed that the regression for cookers B and D have a good fit. Cooker C, however, has an R2 value of less than 75%; the variation in the cooking power, therefore, cannot be explained by temperature difference. The overall thermal performance of the cookers B, C, D were reported as 25. 46%, 23.51% and 24.0%, respectively. The study concludes that effective utilization of a material with good thermal insulation property contributes significant roles in improving the cooking performance of the cooker.