Thermofluid modeling for energy efficiency applications / edited by M. Masud K. Khan, Nur M.S. Hassan.

Format:

Book

Contributor:

Khan, M. Masud K., editor.

Hassan, Nur M. S., editor.

Language:

English

Subjects (All):

Computational fluid dynamics.

Physical Description:

1 online resource (0 p.)

Edition:

1st edition

Place of Publication:

Amsterdam, Netherlands : Academic Press, 2016.

Language Note:

English

System Details:

text file

Summary:

Thermofluid Modeling for Sustainable Energy Applications provides a collection of the most recent, cutting-edge developments in the application of fluid mechanics modeling to energy systems and energy efficient technology. Each chapter introduces relevant theories alongside detailed, real-life case studies that demonstrate the value of thermofluid modeling and simulation as an integral part of the engineering process. Research problems and modeling solutions across a range of energy efficiency scenarios are presented by experts, helping users build a sustainable engineering knowledge base. The text offers novel examples of the use of computation fluid dynamics in relation to hot topics, including passive air cooling and thermal storage. It is a valuable resource for academics, engineers, and students undertaking research in thermal engineering. Includes contributions from experts in energy efficiency modeling across a range of engineering fields Places thermofluid modeling and simulation at the center of engineering design and development, with theory supported by detailed, real-life case studies Features hot topics in energy and sustainability engineering, including thermal storage and passive air cooling Provides a valuable resource for academics, engineers, and students undertaking research in thermal engineering

Contents:

Front Cover

Thermofluid Modeling for Energy Efficiency Applications

Copyright Page

Contents

List of Contributors

Preface

1 Performance Evaluation of Hybrid Earth Pipe Cooling with Horizontal Piping System

1.1 Introduction

1.2 Earth Pipe Cooling Technology

1.3 Green Roof System

1.4 Experimental Design and Measurement

1.5 Model Description

1.5.1 Modeling Equation

1.5.2 Geometry of the Model

1.5.3 Mesh Generation

1.5.4 Solver Approach

1.6 Results and Discussion

1.7 Conclusion

Acknowledgments

References

2 Thermal Efficiency Modeling in a Subtropical Data Center

2.1 Introduction

2.2 CFD Modeling of Data Center

2.2.1 Simulation Approach

2.2.2 Modeling Equations

2.3 Data Center Description

2.4 Results and Discussion

2.4.1 Experimental

2.4.2 Simulations Results

2.4.2.1 Data Center Room and Rack Thermal Maps

2.4.2.2 Static Pressure Map

2.4.2.3 Air Flow Paths

2.5 CRAC Performance

2.6 Conclusions and Recommendations

Nomenclature

3 Natural Convection Heat Transfer in the Partitioned Attic Space

3.1 Introduction

3.2 Problem Formulation

3.3 Numerical Approach and Validation

3.4 Results and Discussions

3.4.1 Development of Coupled Thermal Boundary Layer

3.4.2 Effect of Geometry Configuration

3.4.3 Effect of Rayleigh Number

3.5 Conclusions

4 Application of Nanofluid in Heat Exchangers for Energy Savings

4.1 Introduction

4.2 Types of Nanoparticles and Nanofluid Preparation

4.3 Application of Nanofluid in Heat Exchangers

4.4 Physical Model and Boundary Values

4.5 Governing Equations

4.6 Thermal and Fluid Dynamic Analysis

4.7 Thermophysical Properties of Nanofluid

4.7.1 Thermal Conductivity

4.7.2 Dynamic Viscosity

4.7.3 Density

4.7.4 Specific Heat

4.8 Numerical Method.

4.9 Code Validation

4.10 Grid Independence Test

4.11 Results and Discussions

4.11.1 Heat Transfer Coefficient for Different Volume Fraction of Nanofluid

4.11.2 Heat Transfer Coefficient for Different Nanofluids at the Same Volume Fraction

4.11.3 Pumping Power

4.12 Case Study for a Typical Heat Exchanger

4.13 Conclusions

Greek symbols

Subscripts

Dimensionless parameter

5 Effects of Perforation Geometry on the Heat Transfer Performance of Extended Surfaces

5.1 Introduction

5.2 Problem Description

5.3 Governing Equations

5.4 Numerical Model Formulation

5.4.1 Geometric Configuration and Computational Procedure

5.4.2 Validation of the Numerical Simulation

5.5 Results and Discussions

5.5.1 Nusselt Number Variation with the Reynolds Number

5.5.2 Effects of Drag Force

5.5.3 Heat Removal Rate at Various Reynolds Numbers

5.6 Conclusions

6 Numerical Study of Flow Through a Reducer for Scale Growth Suppression

6.1 Introduction

6.2 The Bayer Process

6.2.1 Bayer Process Scaling

6.3 Fundamentals of Scaling

6.4 Particle Deposition Mechanisms

6.5 Fluid Dynamics Analysis in Scale Growth and Suppression

6.6 Target Model

6.7 Numerical Method

6.8 Grid Independence Test

6.9 Results and Discussion

6.9.1 Variation of Fluctuating Velocity Components along Radius

6.9.2 Variation of Fluctuating Velocity Components Along Reducer Wall

6.9.3 Variation of Turbulent Kinetic Energy Along Radius

6.10 Conclusions

7 Parametric Analysis of Thermal Comfort and Energy Efficiency in Building in Subtropical Climate

7.1 Introduction

7.2 Climate Condition

7.3 Envelope Construction

7.3.1 Conventional Construction Systems

7.3.2 Novel Construction Systems.

7.4 Simulation Principles

7.4.1 Model Development

7.5 Results and Analysis

7.6 Conclusions

8 Residential Building Wall Systems: Energy Efficiency and Carbon Footprint

8.1 Introduction

8.1.1 Thermal Comfort

8.1.2 Thermal Insulation

8.1.3 Lag Time

8.1.4 R-Value

8.1.5 Thermal Masses

8.2 Design Patterns of Australian Houses

8.2.1 Timber Weatherboard House

8.2.2 Fibro Cement Weatherboard House

8.2.3 Double Brick Veneer House

8.2.4 Single Brick Veneer House (Conventional House)

8.3 House Wall Systems

8.3.1 House Wall Configuration

8.3.2 Conventional House Wall

8.4 Energy Star Rating and Thermal Performance Modeling Tools

8.5 Results

8.5.1 Conventional House Wall (Benchmark)

8.5.2 New House Wall

8.5.3 Inner and Outer Insulation Positions

8.6 Discussion

8.6.1 Industrial Implications

8.7 Concluding Remarks

9 Cement Kiln Process Modeling to Achieve Energy Efficiency by Utilizing Agricultural Biomass as Alternative Fuels

9.1 Introduction

9.2 Cement Manufacturing Process

9.2.1 Kiln

9.3 Alternative Fuels

9.4 Agricultural Biomass

9.4.1 Agricultural Biomasses in Australia

9.4.2 Selection of Agricultural Biomass

9.4.3 Chemical Composition of Alternative Fuels

9.5 Model Development and Validation

9.5.1 Model Principle

9.5.2 Model Assumption

9.5.3 Model Validation

9.5.4 Modified Kiln Model

9.6 Simulation Results and Discussion

9.7 Conclusion

10 Modeling and Simulation of Heat and Mass Flow by ASPEN HYSYS for Petroleum Refining Process in Field Application

10.1 Introduction

10.2 Heating Furnace

10.2.1 Burner

10.2.2 Furnace Tube/Coil System

10.2.3 Furnace Wall System

10.2.4 Flue Gas Venting System

10.2.5 Blower, Fire Watch Door, Explosion-Proof Door

10.2.6 Control System.

10.2.7 Furnace Drying Technique

10.3 Distillation Unit

10.4 Simulation and Optimization of the Refining Processes

10.4.1 ASPEN™ HYSYS Working Phenomena

10.4.2 Techniques Used for This Simulation

10.4.3 Basic Assumptions

10.4.4 Simulation for the Case Study Plant

10.4.5 Heat and Material Balance

10.4.6 Energy Usage Analysis

10.4.7 Energy Management

10.4.7.1 Short-Term Measures

10.4.7.2 Medium-Term Measures

10.4.7.3 Long-Term Measures

10.5 Conclusion

11 Modeling of Solid and Bio-Fuel Combustion Technologies

11.1 Introduction

11.2 Different Carbon Capture Technologies

11.3 Status of Coal/Biomass Combustion Technology

11.4 Modeling of Coal/Biomass Combustion

11.4.1 Fundamentals of Combustion Modeling

11.4.2 Recent Numerical Activities in Combustion

11.5 Modeling of Packed Bed Combustion

11.5.1 Recent Numerical Models

11.5.2 Modeling Methodology

11.6 Modeling of Slagging in Combustion

11.6.1 Fundamentals of Slagging

11.6.2 Processes Involved in Slagging

11.6.3 Recent Numerical Works

11.7 Example A: Lab-Scale Modeling for Coal Combustion

11.7.1 Experimental Study Considered

11.7.2 Furnace Description and Operating Conditions

11.7.3 Effect of Different Performance Parameters

11.8 Example B: Lab-Scale Modeling for Coal/Biomass Co-Firing

11.8.1 Experimental Study Considered

11.8.2 Investigated Cases

11.8.3 Outcome of the Investigation

11.9 Conclusion

Greek Symbols

List of Abbreviations

12 Ambient Temperature Rise Consequences for Power Generation in Australia

12.1 Introduction

12.1.1 Energy Use Projection for Australia up to Year 2035

12.1.2 Projected Power Generation in Australia up to the Year 2100

12.1.3 The Rise of Ambient Temperature in Australia up to the year 2100.

12.1.3.1 Impact of Ambient Temperature Change in Australia

12.1.3.2 Impact of Ambient Temperature Change on Energy and Infrastructure in Australia

12.1.4 Australian Ambient Temperature Change Scenario and Model Analysis

12.1.4.1 Scenario Analysis

12.1.4.2 Model Analysis

12.1.5 Impact of Ambient Temperature Rise on Power Generation in Australia's States and Territories

12.1.5.1 Impact on Power Generation in New South Wales

12.1.5.2 Impact on Power Generation in Victoria

12.1.5.3 Impact on Power Generation in Queensland

12.1.5.4 Impact on Power Generation in South Australia

12.1.5.5 Impact on Power Generation in Western Australia

12.1.5.6 Impact on Power Generation in the Northern Territory

12.1.5.7 Impact on Power Generation in Tasmania

12.2 Overall Impact on Power Generation in Australia

12.3 Reduction of Power Generation Efficiency in Australia from 2030 to 2100

12.4 Concluding Remarks

Index

Back Cover.

Notes:

Description based upon print version of record.

Includes bibliographical references at the end of each chapters and index.

Description based on online resource; title from PDF title page (ebrary, viewed December 1, 2015).

ISBN:

9780128025895

0128025891

9780128023976

012802397X

OCLC:

932328780