automation of milk process in dairy field using plc and scada

MASTER OF TECHNOLOGYMASTER OF TECHNOLOGY
ININ
INSTRUMENTATION ENGINEERINGINSTRUMENTATION ENGINEERING

By
B.NASAR BABU
Regd. No: 1220512104
Under the guidance of
Mrs. N. JYOTHI
Associate Professor
Department of Electronics & Instrumentation Engineering
GITAM UNIVERSITY
VISAKHAPATNAM

 The main Objective of the Project is to Control and Monitor the
Pasteurization and Homogenization Process of Milk
 In order to increase product quality and to minimize energy consumption
and impact on the environment, it is necessary to optimize the food
process design and operation. Therefore, the aim of this work was to
study the optimization feasibility of the milk pasteurization process using
programmable logic controller (PLC) & Supervisory Control and Data
Acquisition System (SCADA)
 Principle idea of this project is to show automation of milk pasteurization
& homogenization using Allen Bradley RS Logix 500 software and
Wonder ware Intouch 9.5 software.
B.NASAR BABU, EIE, GIT, GITAM UNIVERSITY AUTOMATION OF MILK PROCESSING IN DAIRY FIELD

 Raw Milk Reception Dock (RMRD) is
the primary point of liquid milk entry
in dairies in India
 The collection process starts from the
villages, groups of which are assigned
to distinct Milk Truck Routes
 Here the milk is weighed and tested
and also generates the receipt statement
according to the measured parameters

 Milk analyzers measure fat contents,
solids nonfat (SNF), milk density,
protein and added water.
 Measured milks: cow, sheep,
buffalo, and goat milk
 Measuring time: 40 sec.
 Measurements per hour: 65-70

Parameter Range Resolution
Fat 0~ 15% 0.01%
SNF 0~ 15% 0.01%
Added Water 0~ 100% 1.0%
Repeatability — ± 0.05%
Accuracy* — ±0.10%
Sample Volume — 20 ml
Power Supply — 220 Volts AC ± 5% /12 Volts DC
Power Consumption — 30 Watt
Ambient Temperature — 15 ~35°C
Dimension — 95 x 300 x 250 mm
Weight — 3.0 kgs
Ports - RS 232 Serial / Printer

 Plate heat exchanger (PHE)
 Pasteurizers
 Homogenizer
 Storage tankers / silo’s
 Raw Product Booster Pump and Auxiliary
Pumps
 Holding Tube

 A plate heat exchanger is a type of heat exchanger that uses
metal plates to transfer heat between two fluids.

 A Process named after scientist Louis Pasteur which uses the
application of heat to destroy human pathogens in foods.
 690
C & 30 Minutes Vat Pasteurization
 850
C & 10 Seconds high temperature short time pasteurization
(HTST)
 800
C & 15 – 20 Seconds high temperature short time
pasteurization (HTST) type equation here

B.NASAR BABU, EIE, GIT, GITAM UNIVERSITY
AUTOMATION OF MILK
PROCESSING IN DAIRY FIELD
AUTOMATION OF MILK
PROCESSING IN DAIRY FIELD

 High-pressure homogenizers are
generally needed when high efficiency
homogenization is required
Cream Distribution before and After Homogenizer

 It is a stainless steel storage
tank
 Inside the storage tank
thermocol are insulated like
a sandwich
 It wont allow outside
temperature to inside & vice
versa

Automation
which is a set of technologies that results in the operation of industrial machines and systems with out significant
human intervention and achieve superior performance compare to manual operation
 Self Diagnosis
 Less Time
 Low Errors
 Human Effort will be Low
 Higher productivity
Programmable Logic Controllers ( Industrially Hardened Micro Computers )Programmable Logic Controllers ( Industrially Hardened Micro Computers )
 Ease of programming and reprogramming
 Immediate Documentation
 Rugged Construction & Modular Design
 Centrally available Diagnosis
 Moderate to Low initial investment cost

 SCADA stands for Supervisory Control and Data Acquisition. As the name indicates, it is not a
full control system, but rather focuses on the supervisory level. As such, it is a purely software
package that is positioned on top of hardware to which it is interfaced, in general via
Programmable Logic Controllers (PLCs), or other commercial hardware modules.
 Features of SCADA:
 Dynamic process Graphic
 Alarm summery
 Alarm history
 Real time trend
 Historical time trend
 Security (Application Security)
 Data base connectivity

Ladder Logic (2/4)

Ladder Logic (3/4)

Ladder Logic (4/4)

ConclusionConclusion
 The automation of Milk Processing in the Dairy Field is Controlled and Monitored the
Pasteurization and Homogenization Process of Milk by using PLC ( Allen Bradely ) and
SCADA ( Intouch ) Effectively
 Conventional method of control and maintenance of Processing of Milk are now affectively
replaced with state of the Microprocessor based PLC System, which made the control and
maintenance easy, efficient and flexible.

automation of milk process in dairy field using plc and scada

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