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... Thermal losses were assessed through an energy balance on hot water exchanges with the environment. Results indicate low thermal losses, prolonged heat retention (approximately 60 hours), and significant energy savings in cooking (30% to 75%), emphasizing the pressure cooker's potential for efficient energy management in the restaurant sector (Ouedraogo et al., 2020). ...
This research study focuses on fostering a transformative journey from knowledge to innovation among students by enhancing their research experiences. The process involves converting initial conceptual ideas into tangible projects, which are subsequently developed into design patents, culminating in the creation of market-ready products. The study draws inspiration from the exploration of the critical radius of insulation, undertaken during the sixth semester of a mechanical engineering undergraduate program. This concept was practically applied to mitigate heat losses in household pressure cookers. Notably, a gap in the availability of such products in the Indian market was identified through extensive literature review, leading to the student’s engagement in this project. Encouraged by their mentors, the students presented their innovation to the university innovation, incubation, and research center, successfully obtaining financial backing. This paper comprehensively recounts the entirety of the student’s research journey. It commences with the translation of theoretical curriculum knowledge into actionable research ideas. The subsequent phases encompass various research methodologies, including theoretical analysis and simulation studies. The journey progresses with the execution of experimental approaches, effectively translating findings into design patents and, ultimately, tangible market-ready products. Overall, this research emphasizes the crucial role of research experiences in bridging the gap between theoretical learning and practical application. It underscores the significance of nurturing student’s innovative capabilities within the structured curriculum, contributing to their holistic development as future contributors to academia and industry alike. Keywords—Idea; Energy; Patent; Research; Transformation.
... The box was insulated with kapok wool and an air gap at the bottom of the cooker between the absorber plate and the inner box. Kapok wool is a vegetable insulator available locally with interesting properties (Conductivity varying between 0.03 and 0.06 W/m.K) [19][20][21]. The thickness of insulation at the bottom of the cooker is 6 cm and the angle of inclination of the opening surface with respect to the horizontal is 13° as shown in Fig. 1 and 2 of the built solar cooker. ...
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.
... The box was insulated with kapok wool and an air gap at the bottom of the cooker between the absorber plate and the inner box. Kapok wool is a vegetable insulator available locally with interesting properties (Conductivity varying between 0.03 and 0.06 W/m.K) [19][20][21]. The thickness of insulation at the bottom of the cooker is 6 cm and the angle of inclination of the opening surface with respect to the horizontal is 13° as shown in Fig. 1 and 2 of the built solar cooker. ...
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.
... Because of its very interesting thermophysical properties, we have recently used kapok wool in the thermal insulation of a pressure cooker intended for cooking and meals conservation. The experimental study by Drissa Ouedraogo et al. [7] which followed showed that the device makes it possible to achieve enormous energy savings (between 30% and 75%) in the cooking of local dishes, and its constant time is about 60 hours. However, even if these results are mainly due to the thermophysical properties of kapok wool, the influence of other parameters such as the thickness and density of the insulating matrix on the performance of the device was not elucidated during this study. ...
