Fundamentals of Thermal-Fluid Sciences
Námskeið VT SVT1003 Straum- og varmaflutningsfræði - Höfundar: Yunus Cengel, John Cimbala, Afshin Ghajar
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Námskeið
- VT SVT1003 Straum- og varmaflutningsfræði
Lýsing:
Fundamentals of Thermal-Fluid Sciences, Sixth Edition, is an abbreviated version of standard thermodynamics, fluid mechanics, and heat transfer texts, covering topics that the majority of engineering students will need in their professional lives. The text is well-suited for curriculums that have a common introductory course or a two-course sequence on thermal-fluid sciences. The book addresses tomorrow's engineers in a simple, yet precise manner, and it leads students toward a clear understanding and firm grasp of the basic principles of thermal-fluid sciences.
Annað
- Höfundar: Yunus Cengel, John Cimbala, Afshin Ghajar
- Útgáfa:6
- Útgáfudagur: 2021-01-05
- Hægt að prenta út 2 bls.
- Hægt að afrita 2 bls.
- Format:ePub
- ISBN 13: 9781264357642
- Print ISBN: 9781260597585
- ISBN 10: 1264357648
Efnisyfirlit
- Cover
- Title
- Copyright
- About the Authors
- Brief Contents
- Contents
- Preface
- Connect
- Chapter One: Introduction and Overview
- 1–1 Introduction to Thermal-Fluid Sciences
- Application Areas of Thermal-Fluid Sciences
- 1–2 Thermodynamics
- 1–3 Heat Transfer
- 1–4 Fluid Mechanics
- 1–5 Importance of Dimensions and Units
- Some SI and English Units
- Dimensional Homogeneity
- Unity Conversion Ratios
- 1–6 Problem-Solving Technique
- Step 1: Problem Statement
- Step 2: Schematic
- Step 3: Assumptions and Approximations
- Step 4: Physical Laws
- Step 5: Properties
- Step 6: Calculations
- Step 7: Reasoning, Verification, and Discussion
- Engineering Software Packages
- Equation Solvers
- A Remark on Significant Digits
- Summary
- References and Suggested Readings
- problems
- 1–1 Introduction to Thermal-Fluid Sciences
- Chapter Two: Basic Concepts of Thermodynamics
- 2–1 Systems and Control Volumes
- 2–2 Properties of a System
- Continuum
- 2–3 Density and Specific Gravity
- 2–4 State and Equilibrium
- The State Postulate
- 2–5 Processes and Cycles
- The Steady-Flow Process
- 2–6 Temperature and the Zeroth Law of Thermodynamics
- Temperature Scales
- 2–7 Pressure
- Variation of Pressure with Depth
- 2–8 Pressure Measurement Devices
- The Barometer
- The Manometer
- Other Pressure Measurement Devices
- Summary
- References and Suggested Readings
- Problems
- 3–1 Introduction
- 3–2 Forms of Energy
- Some Physical Insight into Internal Energy
- More on Nuclear Energy
- Mechanical Energy
- 3–3 Energy Transfer by Heat
- Historical Background on Heat
- 3–4 Energy Transfer By Work
- Electrical Work
- 3–5 Mechanical Forms Of Work
- Shaft Work
- Spring Work
- Work Done on Elastic Solid Bars
- Work Associated with the Stretching of a Liquid Film
- Work Done to Raise or to Accelerate a Body
- Nonmechanical Forms of Work
- 3–6 The First Law Of Thermodynamics
- Energy Balance
- Energy Change of a System, ΔEsystem
- Mechanisms of Energy Transfer, Ein and Eout
- 3–7 Energy Conversion Efficiencies
- Efficiencies of Mechanical and Electrical Devices
- Summary
- References and Suggested Readings
- Problems
- 4–1 Pure Substance
- 4–2 Phases of a Pure Substance
- 4–3 Phase-Change Processes of Pure Substances
- Compressed Liquid and Saturated Liquid
- Saturated Vapor and Superheated Vapor
- Saturation Temperature and Saturation Pressure
- Some Consequences of Tsat and Psat Dependence
- 4–4 Property Diagrams for Phase-Change Processes
- 1 The T-u Diagram
- 2 The P-u Diagram
- Extending the Diagrams to Include the Solid Phase
- 3 The P-T Diagram
- The P-u-T Surface
- 4–5 Property Tables
- Enthalpy—A Combination Property
- 1a Saturated Liquid and Saturated Vapor States
- 1b Saturated Liquid–Vapor Mixture
- 2 Superheated Vapor
- 3 Compressed Liquid
- Reference State and Reference Values
- 4–6 The Ideal-Gas Equation of State
- Is Water Vapor an Ideal Gas?
- 4–7 Compressibility Factor—A Measure of Deviation from Ideal-Gas Behavior
- Summary
- References and Suggested Readings
- Problems
- 5–1 Moving Boundary Work
- Polytropic Process
- 5–2 Energy Balance for Closed Systems
- 5–3 Specific Heats
- 5–4 Internal Energy, Enthalpy, and Specific Heats of Ideal Gases
- Specific Heat Relations of Ideal Gases
- 5–5 Internal Energy, Enthalpy, and Specific Heats of Solids and Liquids
- Internal Energy Changes
- Enthalpy Changes
- Summary
- References and Suggested Readings
- Problems
- 6–1 Conservation of Mass
- Mass and Volume Flow Rates
- Conservation of Mass Principle
- Mass Balance for Steady-Flow Processes
- Special Case: Incompressible Flow
- 6–2 Flow Work and the Energy of a Flowing Fluid
- Total Energy of a Flowing Fluid
- Energy Transport by Mass
- 6–3 Energy Analysis of Steady-Flow Systems
- 6–4 Some Steady-Flow Engineering Devices
- 1 Nozzles and Diffusers
- 2 Turbines and Compressors
- 3 Throttling Valves
- 4a Mixing Chambers
- 4b Heat Exchangers
- 5 Pipe and Duct Flow
- 6–5 Energy Analysis of Unsteady-Flow Processes
- Summary
- References and Suggested Readings
- Problems
- 7–1 Introduction to the Second Law
- 7–2 Thermal Energy Reservoirs
- 7–3 Heat Engines
- Thermal Efficiency
- Can We Save Qout?
- The Second Law of Thermodynamics: Kelvin–Planck Statement
- 7–4 Refrigerators and Heat Pumps
- Coefficient of Performance
- Heat Pumps
- Performance of Refrigerators, Air Conditioners, and Heat Pumps
- The Second Law of Thermodynamics: Clausius Statement
- Equivalence of the Two Statements
- 7–5 Reversible and Irreversible Processes
- Irreversibilities
- Internally and Externally Reversible Processes
- 7–6 The Carnot Cycle
- The Reversed Carnot Cycle
- 7–7 The Carnot Principles
- 7–8 The Thermodynamic Temperature Scale
- 7–9 The Carnot Heat Engine
- The Quality of Energy
- 7–10 The Carnot Refrigerator and Heat Pump
- Summary
- References and Suggested Readings
- Problems
- 8–1 Entropy
- A Special Case: Internally Reversible Isothermal Heat Transfer Processes
- 8–2 The Increase of Entropy Principle
- Some Remarks About Entropy
- 8–3 Entropy Change of Pure Substances
- 8–4 Isentropic Processes
- 8–5 Property Diagrams Involving Entropy
- 8–6 What is Entropy?
- Entropy and Entropy Generation in Daily Life
- 8–7 The T ds Relations
- 8–8 Entropy Change of Liquids and Solids
- 8–9 The Entropy Change of Ideal Gases
- Constant Specific Heats (Approximate Analysis)
- Variable Specific Heats (Exact Analysis)
- Isentropic Processes of Ideal Gases
- Constant Specific Heats (Approximate Analysis)
- Variable Specific Heats (Exact Analysis)
- Relative Pressure and Relative Specific Volume
- 8–10 Reversible Steady-Flow Work
- Proof that Steady-Flow Devices Deliver the Most and Consume the Least Work When the Process Is Reversible
- 8–11 Isentropic Efficiencies of Steady-Flow Devices
- Isentropic Efficiency of Turbines
- Isentropic Efficiencies of Compressors and Pumps
- Isentropic Efficiency of Nozzles
- 8–12 Entropy Balance
- Entropy Change of a System, ΔSsystem
- Mechanisms of Entropy Transfer, Sin and Sout
- 1 Heat Transfer
- 2 Mass Flow
- Entropy Generation, Sgen
- Closed Systems
- Control Volumes
- Summary
- References and Suggested Readings
- Problems
- 9–1 Basic Considerations in the Analysis of Power Cycles
- 9–2 The Carnot Cycle and its Value in Engineering
- 9–3 Air-Standard Assumptions
- 9–4 An Overview of Reciprocating Engines
- 9–5 Otto Cycle: The Ideal Cycle for Spark-Ignition Engines
- 9–6 Diesel Cycle: The Ideal Cycle for Compression-Ignition Engines
- 9–7 Brayton Cycle: The Ideal Cycle for Gas-Turbine Engines
- Development of Gas Turbines
- Deviation of Actual Gas-Turbine Cycles from Idealized Ones
- 9–8 The Brayton Cycle with Regeneration
- 9–9 The Carnot Vapor Cycle
- 9–10 Rankine Cycle: The Ideal Cycle for Vapor Power Cycles
- Energy Analysis of the Ideal Rankine Cycle
- 9–11 Deviation of Actual Vapor Power Cycles From Idealized Ones
- 9–12 How Can We Increase The Efficiency of The Rankine Cycle?
- Lowering the Condenser Pressure (Lowers Tlow,avg)
- Superheating the Steam to High Temperatures (Increases Thigh,avg)
- Increasing the Boiler Pressure (Increases Thigh,avg)
- 9–13 The Ideal Reheat Rankine Cycle
- 9–14 Refrigerators and Heat Pumps
- 9–15 The Reversed Carnot Cycle
- 9–16 The Ideal Vapor-Compression Refrigeration Cycle
- 9–17 Actual Vapor-Compression Refrigeration Cycle
- 9–18 Heat Pump Systems
- Summary
- References and Suggested Readings
- Problems
- Chapter Ten: Introduction and Properties of Fluids
- 10–1 The No-Slip Condition
- 10–2 Classification of Fluid Flows
- Viscous Versus Inviscid Regions of Flow
- Internal Versus External Flow
- Compressible Versus Incompressible Flow
- Laminar Versus Turbulent Flow
- Natural (or Unforced) Versus Forced Flow
- Steady Versus Unsteady Flow
- One-, Two-, and Three-Dimensional Flows
- Uniform Versus Nonuniform Flow
- 10–3 Vapor Pressure and Cavitation
- 10–4 Viscosity
- 10–5 Surface Tension and Capillary Effect
- Capillary Effect
- Summary
- References and Suggested Reading
- Problems
- 11–1 Introduction to Fluid Statics
- 11–2 Hydrostatic Forces on Submerged Plane Surfaces
- Special Case: Submerged Rectangular Plate
- 11–3 Hydrostatic Forces on Submerged Curved Surfaces
- 11–4 Buoyancy and Stability
- Stability of Immersed and Floating Bodies
- Summary
- References and Suggested Reading
- Problems
- 12–1 The Bernoulli Equation
- Acceleration of a Fluid Particle
- Derivation of the Bernoulli Equation
- Force Balance Across Streamlines
- Unsteady, Compressible Flow
- Static, Dynamic, and Stagnation Pressures
- Limitations on the Use of the Bernoulli Equation
- Hydraulic Grade Line (HGL) and Energy Grade Line (EGL)
- Applications of the Bernoulli Equation
- 12–2 Energy Analysis of Steady Flows
- Special Case: Incompressible Flow with No Mechanical Work Devices and Negligible Friction
- Kinetic Energy Correction Factor, α
- Summary
- References and Suggested Reading
- Problems
- 13–1 Newton’s Laws
- 13–2 Choosing a Control Volume
- 13–3 Forces Acting on a Control Volume
- 13–4 The Reynolds Transport Theorem
- An Application: Conservation of Mass
- 13–5 The Linear Momentum Equation
- Special Cases
- Momentum-Flux Correction Factor, β
- Steady Flow
- Flow with No External Forces
- Summary
- References and Suggested Reading
- Problems
- 14–1 Introduction
- 14–2 Laminar and Turbulent Flows
- Reynolds Number
- 14–3 The Entrance Region
- Entry Lengths
- 14–4 Laminar Flow in Pipes
- Pressure Drop and Head Loss
- Effect of Gravity on Velocity and Flow Rate in Laminar Flow
- Laminar Flow in Noncircular Pipes
- 14–5 Turbulent Flow in Pipes
- Turbulent Velocity Profile
- The Moody Chart and Its Associated Equations
- Types of Fluid Flow Problems
- 14–6 Minor Losses
- 14–7 Piping Networks and Pump Selection
- Series and Parallel Pipes
- Piping Systems with Pumps and Turbines
- Summary
- References and Suggested Reading
- Problems
- 15–1 Introduction
- 15–2 Drag and Lift
- 15–3 Friction and Pressure Drag
- Reducing Drag by Streamlining
- Flow Separation
- 15–4 Drag Coefficients of Common Geometries
- Biological Systems and Drag
- Drag Coefficients of Vehicles
- Superposition
- 15–5 Parallel Flow Over Flat Plates
- Friction Coefficient
- 15–6 Flow Over Cylinders and Spheres
- Effect of Surface Roughness
- 15–7 Lift
- Finite-Span Wings and Induced Drag
- Summary
- References and Suggested Reading
- Problems
- Chapter Sixteen: Mechanisms of Heat Transfer
- 16–1 Introduction
- 16–2 Conduction
- Thermal Conductivity
- Thermal Diffusivity
- 16–3 Convection
- 16–4 Radiation
- 16–5 Simultaneous Heat Transfer Mechanisms
- Summary
- References and Suggested Reading
- Problems
- 17–1 Steady Heat Conduction in Plane Walls
- Thermal Resistance Concept
- Thermal Resistance Network
- Multilayer Plane Walls
- 17–2 Thermal Contact Resistance
- 17–3 Generalized Thermal Resistance Networks
- 17–4 Heat Conduction in Cylinders and Spheres
- Multilayered Cylinders and Spheres
- 17–5 Critical Radius of Insulation
- 17–6 Heat Transfer from Finned Surfaces
- Fin Equation
- Fin Efficiency
- Fin Effectiveness
- Proper Length of a Fin
- Summary
- References and Suggested Reading
- Problems
- 18–1 Lumped System Analysis
- Criteria for Lumped System Analysis
- Some Remarks on Heat Transfer in Lumped Systems
- 18–2 Transient Heat Conduction in Large Plane Walls, Long Cylinders, and Spheres with Spatial Effects
- Nondimensionalized One-Dimensional Transient Conduction Problem
- Approximate Analytical Solutions
- 18–3 Transient Heat Conduction in Semi-Infinite Solids
- Contact of Two Semi-Infinite Solids
- 18–4 Transient Heat Conduction in Multidimensional Systems
- Summary
- References and Suggested Reading
- Problems
- 19–1 Physical Mechanism of Convection
- Nusselt Number
- 19–2 Thermal Boundary Layer
- Prandtl Number
- 19–3 Parallel Flow Over Flat Plates
- Flat Plate with Unheated Starting Length
- Uniform Heat Flux
- 19–4 Flow Across Cylinders and Spheres
- 19–5 General Considerations for Pipe Flow
- Thermal Entrance Region
- Entry Lengths
- 19–6 General Thermal Analysis
- Constant Surface Heat Flux (qs = constant)
- Constant Surface Temperature (Ts = constant)
- 19–7 Laminar Flow in Tubes
- Constant Surface Heat Flux
- Constant Surface Temperature
- Laminar Flow in Noncircular Tubes
- Developing Laminar Flow in the Entrance Region
- 19–8 Turbulent Flow in Tubes
- Developing Turbulent Flow in the Entrance Region
- Turbulent Flow in Noncircular Tubes
- Flow Through Tube Annulus
- Heat Transfer Enhancement
- Summary
- References and Suggested Reading
- Problems
- 20–1 Physical Mechanism of Natural Convection
- 20–2 Equation Of Motion and the Grashof Number
- The Grashof Number
- 20–3 Natural Convection Over Surfaces
- Vertical Plates (Ts = constant)
- Vertical Plates (qs = constant)
- Vertical Cylinders
- Inclined Plates
- Horizontal Plates
- Horizontal Cylinders and Spheres
- 20–4 Natural Convection Inside Enclosures
- Effective Thermal Conductivity
- Horizontal Rectangular Enclosures
- Inclined Rectangular Enclosures
- Vertical Rectangular Enclosures
- Concentric Cylinders
- Concentric Spheres
- Combined Natural Convection and Radiation
- Summary
- References and Suggested Reading
- Problems
- 21–1 Introduction
- 21–2 Thermal Radiation
- 21–3 Blackbody Radiation
- 21–4 Radiative Properties
- Emissivity
- Absorptivity, Reflectivity, and Transmissivity
- Kirchhoff’s Law
- The Greenhouse Effect
- 21–5 The View Factor
- 21–6 View Factor Relations
- 1 The Reciprocity Relation
- 2 The Summation Rule
- 3 The Superposition Rule
- 4 The Symmetry Rule
- View Factors Between Infinitely Long Surfaces: The Crossed-Strings Method
- 21–7 Radiation Heat Transfer: Black Surfaces
- 21–8 Radiation Heat Transfer: Diffuse, Gray Surfaces
- Radiosity
- Net Radiation Heat Transfer to or from a Surface
- Net Radiation Heat Transfer Between Any Two Surfaces
- Methods of Solving Radiation Problems
- Radiation Heat Transfer in Two-Surface Enclosures
- Radiation Heat Transfer in Three-Surface Enclosures
- Summary
- References and Suggested Reading
- Problems
- 22–1 Types of Heat Exchangers
- 22–2 The Overall Heat Transfer Coefficient
- Fouling Factor
- 22–3 Analysis of Heat Exchangers
- 22–4 The Log Mean Temperature Difference Method
- Counterflow Heat Exchangers
- Multipass and Crossflow Heat Exchangers: Use of a Correction Factor
- 22–5 The Effectiveness–Ntu Method
- Summary
- References and Suggested Reading
- Problems
- Table A–1 Molar mass, gas constant, and critical-point properties
- Table A–2 Ideal-gas specific heats of various common gases
- Table A–3 Properties of common liquids, solids, and foods
- Table A–4 Saturated water—Temperature table
- Table A–5 Saturated water—Pressure table
- Table A–6 Superheated water
- Table A–7 Compressed liquid water
- Table A–8 Saturated ice–water vapor
- Figure A–9 T-s diagram for water
- Figure A–10 Mollier diagram for water
- Table A–11 Saturated refrigerant-134a—Temperature table
- Table A–12 Saturated refrigerant-134a—Pressure table
- Table A–13 Superheated refrigerant-134a
- Figure A–14 P-h diagram for refrigerant-134a
- Table A–15 Properties of saturated water
- Table A–16 Properties of saturated refrigerant-134a
- Table A–17 Properties of saturated ammonia
- Table A–18 Properties of saturated propane
- Table A–19 Properties of liquids
- Table A–20 Properties of liquid metals
- Table A–21 Ideal-gas properties of air
- Table A–22 Properties of air at 1 atm pressure
- Table A–23 Properties of gases at 1 atm pressure
- Table A–24 Properties of solid metals
- Table A–25 Properties of solid nonmetals
- Table A–26 Emissivities of surfaces
- Figure A–27 The Moody chart
- Figure A–28 Nelson–Obert generalized compressibility chart
- Table A–1E Molar mass, gas constant, and critical-point properties
- Table A–2E Ideal-gas specific heats of various common gases
- Table A–3E Properties of common liquids, solids, and foods
- Table A–4E Saturated water—Temperature table
- Table A–5E Saturated water—Pressure table
- Table A–6E Superheated water
- Table A–7E Compressed liquid water
- Table A–8E Saturated ice–water vapor
- Figure A–9E T-s diagram for water
- Figure A–10E Mollier diagram for water
- Table A–11E Saturated refrigerant-134a—Temperature table
- Table A–12E Saturated refrigerant-134a—Pressure table
- Table A–13E Superheated refrigerant-134a
- Figure A–14E P-h diagram for refrigerant-134a
- Table A–15E Properties of saturated water
- Table A–16E Properties of saturated refrigerant-134a
- Table A–17E Properties of saturated ammonia
- Table A–18E Properties of saturated propane
- Table A–19E Properties of liquids
- Table A–20E Properties of liquid metals
- Table A–21E Ideal-gas properties of air
- Table A–22E Properties of air at 1 atm pressure
- Table A–23E Properties of gases at 1 atm pressure
- Table A–24E Properties of solid metals
- Table A–25E Properties of solid nonmetals
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- Höfundur : 6563
- Útgáfuár : 2021
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