INTRODUCTION

At our Vigyan Ashram, we have around 50-60 members always available in our campus .Everyday at the lunch we require approximately 200-250 rotis ,so it is not easy to make these rotis by hand. It require lots of time and effort.

So we are using the AUTOMATIC ROTI MAKING MACHINE that is driven by both electricity and L.P.G gas.

COMPONENTS OF ROTI MAKER

  • Frame and body
  • Gas burner (4 L.P.G burners)
  • Roti pressing mechanism consist of coil heaters.
  • 3 layer conveyor system consist of metal strips (that works as tawa) and steel mesh (that work as griddle).
  • Control unit for heaters showing temperatures.

Regulators for burners .

COST ESTIMATION OF PER ROTI

So I have done a simple cost performance of roti maker machine for cost of per roti , by having simple instruments like weighing balance (class 4) which is kind of less accurate and time watch etc

CHALLENGES/PROBLEMS IN ROTI MAKER

➢ In Roti pressing mechanism.
1. wire is burning all the time.
2. Detachment of roti from pressing mechanism is not proper due to temperature

➢ Required high amount of energy /efficiency is low because of following reasons.
1. High amount of LPG required for running 4 large burners.
2. We required power for conveying system (about 570w motor).
3. Heat energy waste in conduction through plates of conveyors.
4. Heat energy waste in surrounding.

➢ Due to not proper oxygen mixing with LPG gas the unburnt flame is used that reduce the efficiency, that is due to wrong placement of entering system of oxygen.

➢ The entering time of dough ball is very less this is due to constant speed of cam.

➢ Cost of the machine is very high about 1.88 lacks.

➢ According to machine capability of 500 rotis per hour, but we required only 200-300 rotis only so we under utilised this machine.

➢ This machine is kind of complex for use.