Izvorni znanstveni članak

https://doi.org/10.37798/2024733521

Evaluation and Modeling the Performance of Rice Husk Gasifier Cook Stove for Household Energy Use

Mersha A. Fetene ; Ethiopian Institute of Agricultural Research, Agricultural Engineering Research
Dessye B. Tikuneh ; Ethiopian Institute of Agricultural Research, Agricultural Engineering Research *

* Dopisni autor.

Sažetak

The study evaluates the Belonio-type gasifier stoves with rice husk as sustainable energy sources and waste management options for Ethiopian households. It compares the performance of insulated and non-insulated types to determine reactor design parameters. It predicts a mathematical model for the optimal performance of the gasifier stoves, where the insulated stove showed a lower start-up time. Still, there was no significant difference at a 5% probability level. The temperature change was also insignificant, as heat transfer and temperature change started when the husk was ignited. At room temperature, the maximum and minimum flame temperatures were 1,190.30 oC and 27.33 oC respectively, whereas the average temperature was 758.916 oC for the non-insulated gasifier stove. The insulated gasifier stove also observed maximum and average temperatures of 518.30 oC and 289.014 oC, respectively, at the same room temperature. The fuel consumption rate has a significant effect on the type of gasifier stove, with the maximum rates being 3.820 and 2.099 kg/hr for non-insulated and insulated types of gasifier stoves, respectively. The average specific gasification rates for insulated and non-insulated types of stoves are 106.45 and 120.63 kg/m2h, respectively. The fuel or rice husk holding capacity of each type of stove is significant at a 5% level, with the amount of rice husk and biochar produced being 1.18 kg and 0.27 kg for insulated stoves, and 2.511 kg and 0.688 kg for non-insulated stoves, respectively. Multiple regression analysis was used to model the relationship between time elapsed and temperature and heat energy. The cubic polynomial model was found to be the best predictive model for all variables that can be used to predict the optimal combination of variables. Hence, it can be concluded that the stove is very acceptable with a high prospect for adoption for household energy use.

Ključne riječi

Energy; insulated; non-insulated; heat; temperature; time; boiling; relation

Hrčak ID:

327843

URI

https://hrcak.srce.hr/327843

Datum izdavanja:

1.9.2024.

Posjeta: 447 *