Design of Injera Processing Machine
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Date
2019
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Publisher
Addis Ababa University
Abstract
The present work emphasis in asserting a solution to the laborious Injera making system which
are faced by most of the communities in and around Ethiopia. The main downside of the present
existing Injera making processes is the source of power and energy consumption, tedious labor
with little or no hygiene control and the production efficiency, which is predominantly because
of the use of electric source or conventional fire wood for mitad and unskilled labors.
The proposed machines have been achieved by integrating the dough preparation and the
baking operations to work simultaneously for continuous Injera production. The dough is
prepared in a mixer container which are connected to a baking conveyor unto which the precise
quantity of dough is squeezed on to the baking chamber through the conveyor. The baking
conveyor are controlled to operate in-steps with controlled speed and appropriate delay for
injera to bake, which is achieved by using a stepper motor with a control unit. The component
design and the assembly has been done by CATIA and the real time simulation has been
performed by ANSYS.
This machine is highly recommended to save energy, minimize individual energy bill per
month and minimize operation costs of hotels and restaurants. Therefore, this injera baking
machine saves labor, energy and it is hygienic.
Description
Keywords
Mitad, Injera, Batter, Baking, Efficiency, PLC control system