RT Journal Article T1 Performance of solar funnel cookers using intermediate temperature test load under low sun elevation A1 Apaolaza-Pagoaga, Xabier A1 Sagade, Atul A1 Rodrigues-Ruivo, Celestino A1 Carrillo-Andrés, Antonio K1 Energía solar - Aplicaciones AB Solar funnel cookers can be designed as attractive and affordable low-cost devices accessible to people in allcontinents of the world regardless of their walk-in life. The present work is aimed to investigate the applicabilityof funnel cookers to attain the temperature in excess of the boiling point of water. It widens their acceptability forcooking and opens new opportunities for technological developments in such designs of solar cookers. Twoidentical designs of funnel cookers, FC1 and FC2, have been tested with appropriately sized identical cookingpots and glass enclosure to serve the purpose. Cooker FC2 is tested with a glass enclosure only, while a glassenclosure is not used in FC1. Glycerine is used as a test load. Cooker Opto-thermal Ratio (COR) as a thermalperformance parameter and overall cooking efficiency are used to compare the performance of the two funnelcookers. It is shown that the temperature of the test load in the cooker FC2 can reach 140 to 150 ◦C. So, thisfunnel cooker design can be preferred for cooking food at a relatively high temperature over the boiling point ofwater. The experimental results show that: i) the mean values of the Cooker Opto-thermal Ratio for cookers FC2and FC1 are estimated to be 0.157 and 0.110 (m2◦C)/W, respectively, and ii) the values of the overall cookingefficiency for cookers FC2 and FC1 are estimated to be 11.8% and 10.2%, respectively. PB Elsevier YR 2021 FD 2021-08-11 LK https://hdl.handle.net/10630/29967 UL https://hdl.handle.net/10630/29967 LA eng NO Xabier Apaolaza-Pagoaga, Atul A. Sagade, Celestino Rodrigues Ruivo, Antonio Carrillo-Andrés, Performance of solar funnel cookers using intermediate temperature test load under low sun elevation, Solar Energy, Volume 225, 2021, Pages 978-1000, ISSN 0038-092X, https://doi.org/10.1016/j.solener.2021.08.006. (https://www.sciencedirect.com/science/article/pii/S0038092X21006587) DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026