Asfaw Arkbom Hailu
Sustanable Energy Center of Excellence, Addis Ababa Science and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia.
Nuclear Technology Center of Excellence, Addis Ababa Science and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia.
Heliyon. 2024 Jun 29;10(13):e33733. doi: 10.1016/j.heliyon.2024.e33733. eCollection 2024 Jul 15.
A laboratory setup with two axis of manual sun-tracking was designed and built. To get the predicted values for a solar injera stove, a 20-min heating time to prepare it for baking, 3.1 kWh power in the first hour, and 5.8 kWh (with only an 87 percent increase) in the second hour were acquired to bake 9 and 28 injera using electric injera stove, respectively. The temperature distribution on the clay surface was the range of 180 °C-220 °C. Solar injera baking stove was designed and built using the average energy required to bake one injera from an electrical injera stove. The laboratory setup was put to the test, temperatures at the receiver's surface ranging from 315 to 318 °C and an average solar radiation of 1000 W/m was obtained on the first test. The injera stove inlet reached a maximum temperature of 180.92 °C with a pressure of 14.5 bars during a pressurized hot water production and circulation test (load test). The surface temperature of the solar injera stove clay plate reached a maximum of 62.69 °C. Temperature of more than 60 °C was maintained on the surface of the solar injera stove plate for nearly 2 h.
设计并搭建了一个具有双轴手动太阳跟踪功能的实验室装置。为了获取太阳能英吉拉烤炉的预测值，使用电英吉拉烤炉分别烤制9个和28个英吉拉时，得到了准备烘焙所需的20分钟加热时间、第一小时3.1千瓦时的功率以及第二小时5.8千瓦时（仅增加87%）的功率。黏土表面的温度分布范围为180℃至220℃。太阳能英吉拉烤炉是根据电英吉拉烤炉烤制一个英吉拉所需的平均能量设计并建造的。对实验室装置进行了测试，在首次测试中，接收器表面的温度为315至318℃，平均太阳辐射为1000W/m²。在加压热水生产和循环测试（负载测试）期间，英吉拉烤炉入口处的最高温度达到180.92℃，压力为14.5巴。太阳能英吉拉烤炉黏土板的表面温度最高达到62.69℃。太阳能英吉拉烤炉板表面温度在60℃以上维持了近2小时。
