Present Cci

7/28/2019 Present Cci

1/22

FACULTY OF ELECTRICAL ENGINEERING

UNIVERSITI TEKNOLOGI MARA

ESE 623

COOKING PROCESS IN MAKING TORTILLA CHIPSADRIE AFFENDI AB RAHMAN2009857008

AHMAD AQWA OTHMAN 2009414186

SITI RAHILA YAHAYA2009869438

ABDUL RAHIM MUHAMMAD DIN 2009212028


2/22

INTRODUCTION

We have choose literature review for this assignment.

This literature review about how the tortilla chips are

made.

As example in Malaysia, Kraft Foods Company hasbeen working in this product by the name of chachos

but we focused on the Toms Snacks Company brand

tortilla chips product that located in North Carolina,

USA The reason we focused on this company is because

they used original corn kernels and undergo a process

that turns the maize into the corn dough that called

MASA


3/22

COMPANY BACKGROUND

From video that we choose for this assignment, we

find the company that produced the tortilla chips.

The company is Toms Snacks Company .

We find the website of the company to know furtherabout this company.

http://toms-snacks.com/our-snacks/corn-and-

tortilla/nacho/ http://www.youtube.com/watch?v=Jpp09vrAIIk
http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://localhost/var/www/apps/conversion/tmp/scratch_6/How%20It_s%20Made-%20Tortilla%20Chips.flv%20-%20YouTube.flvhttp://localhost/var/www/apps/conversion/tmp/scratch_6/How%20It_s%20Made-%20Tortilla%20Chips.flv%20-%20YouTube.flvhttp://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/http://toms-snacks.com/our-snacks/corn-and-tortilla/nacho/


4/22

PROCESSES FLOW


5/22

COOKING RAW CORN PROCESS

We observed in the mass production of tortilla chips and

focused on the nixtamalization and masa production

process and highlight at the cooking of raw corn kernels

inside a large cooking kettle with a mixture of a boiling water

and quicklime.

The 300kg of raw corn kernels will be prefilled inside a

hopper valve before it is inserted into the large cooking

kettle that contain almost to 90kg of boiling water


6/22

NIXTAMALIZATION AND MASA PRODUCTION

PROCESS


7/22

SCHEMATIC DIAGRAM


8/22

FLOWCHART OF THE PROCESS


9/22

SENSORS

Temperature sensor Thermistor

Thermistor is the best temperature sensor used in the

Hamilton steam kettle considering the environment and the

range temperature suitable for the process of cooking cornAdvantages of Thermistor

Interchangeability

Small size

Rugged, stable, reliable


10/22

SENSORS

Weight sensor -Load cell

Specific weight need to be measure for entering the corn in

the kettle tank because the kettle should not be overload.

When the corn inserted into hopper valve 2, the straingauge will stretched and the resistance will increases. Its

explained by diagram below:

No strain

Strain

applied


11/22

SENSORS

Tension Load Cell

This type load cell suitable to measure the raw corn in the

hopper valve 2 by measure the tension from initial position

to actual position after hopper valve 1 enter the HV 2.


12/22

ACTUATORS

Pneumatic Actuator For Steam Flow The steam valve is used to control the flow of the steam

from the supply to flow though the jacket around the tank.

This steam is supplied to the jacket as a heat exchangerto heating and control the temperature of the water to

cook the corn in the tank.

It is using a pilot operated control valve to control the

steam for water heating applications.

The pressure is applied to the dome from the upstream

side through the pitot tube.


13/22

ACTUATORS

The upstream pressure will push the piston to open the

valve while downstream will push the piston downward to

close the valve.

Since it is using a pressure to control the movement of

the piston, the system is using a pneumatic actuator tocontrol the opening and closing of the valve.


14/22

ACTUATORS

Pneumatic Actuator For Water Inlet Since the product type to be controlled is water, it is

using a quick opening valve to control the flow of the

water. . It is using a fully open and fully closed of the valve plug

to either let or block the flow.

This type of valve allows 90% maximum flow rate and

30% travel of stem. When the pressure is applied, the diaphragm going to

elongate and the spring will push the valve stem.


15/22

ACTUATORS

The movement of the stem will push the plug from the

seat to let the water flow through the pipe.


16/22

ACTUATORS

Hydraulic Actuator Outlet Valve This outlet valve is to transfer the cooked corn to the soft

tank for soak the kernels for 12 hours.

The selection of a correct valve is very importantbecause usually the slurry product will make the products

jam and prevent valve to close.

Therefore, the most suitable valve for the slurry product

is a dome valve. The valve only takes a movement tocompletely open and prevent the jam product since the

plug is a dome shape.


17/22

ACTUATORS

It is using a hydraulic actuator since the product to

transfer has a very huge weight.

It is also the best actuator selection because it is an

excellent for heat removal since it is a heating process

system.


18/22

ACTUATORS

Electromagnetic Actuator There are two hopper valve used in this process that is

Hopper Valve 1 and Hopper Valve 2.

HV 1 use for entering specific amount of raw corn to theHV 2

The most suitable actuator to control this type of valve is

a linear solenoid which is of the electromagnetic actuator.

Solenoids basically consist of an electrical coil woundaround a cylindrical tube with a plunger that is free to

move or slide in and out of the coils body.


19/22

ACTUATORS

When the current is supplied through the coils windings,

it will cause an electromagnet and the plunger which is

located inside the coil is attracted towards the centre of

the coil.

The spring will push the plunger to close the valve.


20/22

CONTROLLER

PLC Controller In this corn cooking process, it better to use PLC

because it is most common due to its ruggedness, ease

of maintenance, price, and safety. Steam jacketed kettle automation process can be easily

handled by the Siemens Braumat package which utilizes

the Simatics PCS 7 DCS.


21/22

CONTROLLER

This process using Siemens S7-300 PLC modules that

have advantages that suitable with our process.

Allow quick installation and implementation for common

processes such as heating circuit monitoring without

additional transformer, PID control, synchronous heating,freely configurable controller inputs, and measuring.


22/22

RECOMMENDATION

Recommendation for this process is to make

automatically done with the valves of

inserting raw corn, water and the anti-

bacterial into the tank.

The purpose is for safety precaution from hot

temperature of the steam jacket and avoid

the worker approaching the tank.

Documents

Present Cci