Entropy Generation Minimization: The Method of Thermodynamic Optimization of Finite-Size Systems and Finite-Time Processes, 1st Edition (Hardback) book cover

Entropy Generation Minimization

The Method of Thermodynamic Optimization of Finite-Size Systems and Finite-Time Processes, 1st Edition

By Adrian Bejan

CRC Press

400 pages

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pub: 1995-10-20
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Description

This book presents the diverse and rapidly expanding field of Entropy Generation Minimization (EGM), the method of thermodynamic optimization of real devices. The underlying principles of the EGM method - also referred to as "thermodynamic optimization," "thermodynamic design," and "finite time thermodynamics" - are thoroughly discussed, and the method's applications to real devices are clearly illustrated.

The EGM field has experienced tremendous growth during the 1980s and 1990s. This book places EGM's growth in perspective by reviewing both sides of the field - engineering and physics. Special emphasis is given to chronology and to the relationship between the more recent work and the pioneering work that outlined the method and the field.

Entropy Generation Minimization combines the fundamental principles of thermodynamics, heat transfer, and fluid mechanics. EGM applies these principles to the modeling and optimization of real systems and processes that are characterized by finite size and finite time constraints, and are limited by heat and mass transfer and fluid flow irreversibilities.

Entropy Generation Minimization provides a straightforward presentation of the principles of the EGM method, and features examples that elucidate concepts and identify recent EGM advances in engineering and physics. Modern advances include the optimization of storage by melting and solidification; heat exchanger design; power from hot-dry-rock deposits; the on & off operation of defrosting refrigerators and power plants with fouled heat exchangers; the production of ice and other solids; the maximization of power output in simple power plant models with heat transfer irreversibilities; the minimization of refrigerator power input in simple models; and the optimal collection and use of solar energy.

Table of Contents

List of Symbols

Thermodynamics Concepts and Laws

Definitions

Closed Systems

Open Systems

The Momentum Theorem

Useful Steps in Problem Solving

The Temperature-Energy Interaction Diagram, and the Entropy Interaction-Energy Interaction Diagram

Problems

Entropy Generation and Exergy Destruction

The Gouy-Stodola Theorem

Systems Communicating with More than One Heat Reservoir

Adiabatic Systems

Exergy Analysis of Steady Flow Processes

Exergy Analysis of Non-Flow Processes

Characteristic Features of Irreversible Systems and Processes

Problems

Entropy Generation in Fluid Flow

Relationship between Entropy Generation and Viscous Dissipation

Laminar Flow

Turbulent Flow

The Transition

Buckling Theory of Turbulent Flow

Entropy Generation in "Isothermal" Turbulent Flow

The Bernoulli Equation

Entropy Generation in Heat Transfer

The Local Rate of Entropy Generation in Convective Heat Transfer

Fluid Friction vs. Heat Transfer Irreversibility

Internal Flows

External Flows

Conduction Heat Transfer

Convective Mass Transfer

General Heat Exchanger Passage

Heat Transfer Augmentation Techniques

Problems

Heat Exchangers

Counterflow Heat Exchangers

Heat Exchangers with Negligible Pressure Drop Irreversibility

The Three-Part Structure of Heat Exchanger Irreversibility

Two-Phase-Flow Heat Exchangers

Other Heat Exchanger Entropy Generation Studies

Distribution of Heat Exchanger Area on the Absolute Temperature Scale

Distribution of Heat Transfer Area in Counterflow Heat Exchangers

Problems

Insulation Systems

Power Plants and Refrigeration Plants as Insulation Systems

The Generation of Entropy in an Insulation with Fixed Geometry

Optimum Continuous Cooling Regime

Counterflow Heat Exchangers as One-Dimensional Insulations

Parallel Insulations

Intermediate Cooling or Heating of Insulation Systems for Power and Refrigeration Plants

Problems

Storage Systems

Sensible Heat Storage

Optimum Heating and Cooling Processes Subject to Time Constraint

Hot Storage vs. Cold Storage

Latent Heat Storage

Power Generation

Model with Bypass Heat Leak and Two Finite-Size Heat Exchangers

Power Plant Viewed as an Insulation Between Heat Source and Ambient

Combined-Cycle Power Plant

Optimal Combustion Chamber Temperature

Other Power Plant Optimization Studies

Why Maximum Power Means Minimum Entropy Generation Rate

Maximum Power from Fluid Flow

Problems

Solar-Thermal Power Generation

Models with Collector Heat Loss to the Ambient

Collector-Ambient Heat Loss and Collector-Engine Heat Exchanger

Collector-Ambient Heat Loss and Engine-Ambient Heat Exchanger

Storage by Melting

Extraterrestrial Solar Power Plant

Nonisothermal Collectors

Time-Varying Conditions

Other Areas of Solar Power Conversion Study

Problems

Refrigeration

Refrigeration Plant Model with Heat Transfer Irreversibilities

Model with Heat Leak in Parallel with Reversible Compartment

Model with Cold End Heat Exchanger and Room Temperature Heat Exchanger

Minimization of the Heat-Leak Entropy Generation

Problems

Time-Dependent Operation

Defrosting Refrigerators

Cleaning the Heat Exchanger of a Power Plant

Power Plants Driven by Heating from a Bed of Hot Dry Rock

Maximum Rate of Ice Production

Problems

Appendices

Local Entropy Generation Rate

Variational Calculus

Author Index

Subject Index

About the Series

Mechanical and Aerospace Engineering Series

Learn more…

Subject Categories

BISAC Subject Codes/Headings:
SCI013060
SCIENCE / Chemistry / Industrial & Technical
SCI065000
SCIENCE / Mechanics / Dynamics / Thermodynamics
TEC009070
TECHNOLOGY & ENGINEERING / Mechanical