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Commercial Sterilization Systems
The ChemEng Student > Lessons > Commercial Sterilization Systems

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Course Content
Section 1: Introduction
0/11
Introduction to Conduction
Introduction to Thermal Diffusivity
Introduction to Convection
Introduction to Radiation
Convective Heat Transfer
Types of Flow Regimes
Log Mean Temperature Differance
Conduction & Convection Together
Exercise 1: Convective Heat Transfer
Introduction to Thermal Conductivity
Additional Learning Material
Section 2: Intermediate
0/11
Dropwise & Filmwise Condensation
Nusselt Analysis Modelling
Exercise 2: Nusselt Analysis
Condensation in Horizontal Tubes
Exercise 3: Condensation in Horizontal Tubes
Multi-Component Condensation
Introduction to Forced Boiling
Rating of a heat Exchanger Analysis
What is NTU Effectiveness
Introduction to Pool Boiling
Heat Exchanger Design Procedure
Section 3: Heat Integration
0/18
Introduction to Heat Integration
Process Stream Analysis
What is Heat Duty
Overall heat Transfer Coefficient & Area
Temperature Enthalpy Diagrams
Hot Composite Curve
Cold Composite Curve
Heat Exchanger Network Diagram
Exercise 4: Heat Exchanger Network Diagram
Exercise 5: Maximum Energy Recovery
What is a Problem Table
The Grand Composite Curve
Exercise 6: Grand Composite Curve
What is a Threshold Problem
What is Stream Splitting
What are Paths
What are Loops
Additional Learning Material
Section 4: Nodal Network Diagrams
0/6
Introduction to Nodal Networks
The Energy Balance Method
Exercise 7: Energy Balance Method
Formulation of a Matrix
Exercise 8: Formulation of a Matrix
Additional Learning Material
Section 5: Boundary Layer Analysis
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The Velocity Boundary Layer
The Thermal Boundary Layer
Local & Average Convection Coefficients
Exercise 9: Local & Average Convection Coefficients
Laminar & Turbulent Flow
Exercise 10: Laminar & Turbulent Flow
The Boundary Layer Equations
External Flow Systems
Convective Heat & Mass transfer Equations
Exercise 11: Convective Heat & Mass Transfer
Cylinder in Cross Flow Systems
Internal Flow in Pipes
Internal Flow in Pipes Energy Balance
Section 6: Thermal Analysis
0/11
What is the Entry Region
Convection Correlation of Turbulent Flow
Further Pool Boiling
Critical & Minimum Heat Flux
External Forced Convection Boiling
Delay of the Critical Flux
Exercise 12: Delay of Critical Flux
Two-Phase Flow Systems
Exercise 13: Two-Phase Systems
Heat Exchanger Analysis
NTU Analysis Summary
Section 7: Radiation
0/17
Introduction to Radiation
Emissions from Real Systems
Radiation Heat Flux
Exercise 14: Radiation Heat Flux
Radiation Between Surfaces
Determining the View Factor
Exercise 15: View Factors
Radiation Between Grey Surfaces
Exercise 16: Radiation Between Grey Surfaces
Radiation Exchanger Between Enclosures
Three Surface Enclosure
Exercise 17: Three Surface Enclosure
Gas Emission & Absorption
Correction Factor for Gas Emissivity
Mean Beam Length
Gas Absorptivity of CO2 & H2O
Exercise 18: Gas Absorptivity
Section 8: Freezing Process
0/12
Introduction to Freezing
What are Indirect Systems
What are Direct Systems
Frozen Food properties
Determining the Freezing Time
What is Plank’s Method
Exercise 19: Plank’s Method
What is Pham’s Method
Exercise 20: Pham’s Method
Predicting Freezing Time Finite Shapes
Exercise 21: Predicting Freezing Time
Determining The Thawing Time
Section 9: Thermal Food Systems
0/9
Commercial Sterilization Systems
Microbial Survival Curves
Exercise 22: Microbial Survival Curves
Influence of External Agents
What is Thermal Resistance
Exercise 23: Thermal Resistance
Thermal Death Time
General Process Calculation Method
Exercise 24: The Death Rate
Course Assessment Quiz
0/1
Heat Transfer Quiz
Heat Transfer
About Lesson

What you will learn

In this lesson, we will look at the different commercial sterilization systems and why we use them within the food industry. This is an important feature of heat transfer that is often overlooked however, this has real-world applications within industry.

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