Design and Experimental Investigation of Solar Cooker with Thermal Energy Storage
| dc.contributor.advisor | Abdulkadir, Aman (PhD) | |
| dc.contributor.author | Muluken, Biadgelegn | |
| dc.date.accessioned | 2020-12-01T05:18:56Z | |
| dc.date.accessioned | 2023-11-18T06:32:19Z | |
| dc.date.available | 2020-12-01T05:18:56Z | |
| dc.date.available | 2023-11-18T06:32:19Z | |
| dc.date.issued | 2018-11 | |
| dc.description.abstract | Cooking is the major necessity for people all over the world. It accounts for a major share of energy consumption in developing countries. Therefore, there is a critical need for the development of alternative and affordable methods of cooking. Solar cooking is a novel and eco-friendly method of harnessing sun’s energy. Solar cookers can be of a great use in saving fuel and enabling in eco-friendly cooking of food. Solar energy is available during daytime only and also intermittent. So, thermal storage is important for indoor solar cooking requirements and will ensure continuity of service, reduce the use of conventional energy, and give a reasonable cooking time compared with conventional cooking. The solar cooker designed for this study is1.5 aperture area of compound parabolic dish concentrator integrated with thermal storage media (1.5litter of oil and 0.74kg of rock) as an absorber (area of 0.4 )to increase the duration of the effective energy storage period without tracking and utilize thermal energy for night cooking. The overall system is designed with an assumption to cook 1kg of rice in 45minutes requiring power of 522W which is obtained from the stored energy from the sun. Therefore, the numerical simulation, experimental test, and validation of the two results are done. An absorber with thermal storage is simulated by COMSOL software to show temperature distribution. As it is shown in the simulation section, the temperature of TES could reach365K after 6hours. Where as in the experimental result, due to so many losses the energy reduced in some extent and it reaches 354K. Even if it has low energy, it can cook the required food by placing TES in the insulated tank during discharging. Therefore, there were deviations between experiment and simulation because the model did not account the basic losses and frustration of solar radiation in case of numerical simulation. The model of the TES system was validated with experimental results and a brief reason was found between experiment and simulation for the charging cycle. The discharging of TES is started after it is lifted from solar collector and it is placed on the insulated tank and loaded by pot with water. This is maximum temperature of water reached after 40 minutes is 355K (82℃). | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/23749 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Solar Cooker | en_US |
| dc.subject | hermal Energy Storage | en_US |
| dc.title | Design and Experimental Investigation of Solar Cooker with Thermal Energy Storage | en_US |
| dc.type | Thesis | en_US |