ENTROPY ANALYSIS IN THERMAL ENGINEERING SYSTEMS

Description

Entropy Analysis in Thermal Engineering Systems is a thorough reference on the latest formulation and limitations of traditional entropy analysis. Yousef Haseli draws on his own experience in thermal engineering as well as the knowledge of other global experts to explain the definitions and concepts of entropy and the significance of the second law of thermodynamics. The design and operation of systems is also described, as well as an analysis of the relationship between entropy change and exergy destruction in heat conversion and transfer. The book investigates the performance of thermal systems and the applications of the entropy analysis in thermal engineering systems to allow the reader to make clearer design decisions to maximize the energy potential of a thermal system. Includes applications of entropy analysis methods in thermal power generation systems Explains the relationship between entropy change and exergy destruction in an energy conversion/transfer process Guides the reader to accurately utilize entropy methods for the analysis of system performance to improve efficiency Cover......Page 1 ENTROPY ANALYSIS IN THERMAL ENGINEERING SYSTEMS ......Page 3 Copyright......Page 4 Dedication......Page 5 Preface......Page 6 Acknowledgments......Page 10 Thermodynamic properties......Page 11 Conservation of mass......Page 12 First law of thermodynamics......Page 13 Second law of thermodynamics......Page 15 Entropy generation......Page 17 Entropy generation in closed systems......Page 18 Combined first and second laws......Page 20 References......Page 21 Introduction......Page 22 Charles' law......Page 23 Experiments of Rumford and Davy......Page 24 Between 1800 and 1849......Page 25 Carnots contribution......Page 26 Poissons equations......Page 29 Experiments of Joule......Page 30 Absolute temperature scale......Page 31 Theoretical developments......Page 32 Remarks......Page 35 References......Page 36 The common tutorial method......Page 38 Proof of corollaries......Page 39 Shortcomings of the proof......Page 40 Carnot efficiency......Page 42 Clausius inequality......Page 44 Derivation of the Carnot efficiency......Page 45 Derivation of the Clausius integral......Page 47 Definition of entropy......Page 50 Carnot cycle on T-S diagram......Page 51 References......Page 52 Introduction......Page 53 Pressure drop......Page 54 Expansion......Page 56 Mixing......Page 58 Interpretation of entropy......Page 60 References......Page 62 Introduction......Page 63 Thermodynamic power cycles......Page 64 Stirling cycle......Page 65 Brayton cycle......Page 66 Otto cycle......Page 67 Atkinson cycle......Page 68 Diesel cycle......Page 69 Miller cycle......Page 70 Efficiency comparison......Page 72 References......Page 74 Introduction......Page 75 Curzon-Ahlborn engine......Page 76 Novikovs engine......Page 80 Modified Novikovs engine......Page 82 Carnot vapor cycle......Page 85 References......Page 90 Introduction......Page 92 Brayton cycle......Page 93 Otto cycle......Page 98 Atkinson cycle......Page 100 Diesel cycle......Page 104 Isentropic compression and expansion......Page 106 Fixed heat input......Page 109 Specific entropy generation......Page 110 Proof that wrev is relatively constant......Page 112 Gas turbine cycle......Page 117 Enthalpy and entropy flows......Page 118 Determination of SEG......Page 120 Illustrative example......Page 121 Determination of SEG......Page 123 Numerical example......Page 124 Combined cycle......Page 126 Thermodynamic model......Page 127 Illustrative example......Page 129 Modified design......Page 131 Organic Rankine cycle......Page 133 References......Page 136 Introduction......Page 137 Maximum conversion efficiency......Page 138 Fuel cell operating on methane......Page 141 Numerical example......Page 142 Open circuit voltage......Page 143 Second issue......Page 145 SOFC model......Page 148 Illustrative example......Page 150 References......Page 153 Introduction......Page 154 Definition of equilibrium......Page 155 Experimental examination of theory......Page 156 Thermodynamics of chemical reaction......Page 159 Exothermic reaction......Page 160 Gibbs function......Page 161 Reaction advancement......Page 163 Methane steam reforming......Page 164 Kinetic model......Page 166 Semiempirical model......Page 168 References......Page 172 Thermal exergy......Page 174 Flow exergy......Page 176 Chemical exergy......Page 177 A simple relation for chemical exergy......Page 180 Maximum efficiency......Page 182 Minimum exhaust temperature......Page 184 Entropy vs exergy......Page 185 Limitation of the second law......Page 186 References......Page 187 Nomenclature......Page 189 Subscripts......Page 190 Superscripts......Page 191 Appendix B: Effect of fuel type on SEG......Page 192 Appendix C: Determination of xi at minimum Gmf......Page 193 Reference......Page 194 Index......Page 195 Back Cover......Page 200