DEVELOPMENT AND EVALUATION OF A BACK-UP STOVE FOR SOLAR “KILISHI” DRYER

Publication Date : 01/02/2011


Author(s) :

YAHAYA, B., UMAR, A.A..


Volume/Issue :
Volume 6
,
Issue 1
(02 - 2011)



Abstract :

The back-up stove is used as a back-up heat source for solar “Kilishi” Dryers in the night or when there is low solar radiation. The stove is made up of the following parts: Burner, Ash-tray, Heat-exchanger and Chimney. Hot air from the burner entered the heat-exchanger through one end of the shell side and leave at the other end to the chimney. Fresh air is blown into the heat-exchanger through one end of the tube side and leave at the other end to the drying chamber. Each component of the stove was designed using appropriate design equation. 2 mm thick galvanizes steel sheet was used for the construction. The stove was tested and the following parameters were measured and recorded: The relative humidity and temperature of air at the inlet, inside and outlet of the drying chamber at 1 hour interval. The meat was weighted at 2 hours interval from which the moisture content of the meat was calculated. These results were used to evaluate the performance of the stove and the average efficiency was found to be 8.8% and the drying time was eight hours.


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