Page 547 - Advanced thermodynamics for engineers
P. 547

Index    541




                 Otto cycle with, 360f                     universal, 95, 179
                 reciprocating engines, 359–364          Gas exchange processes, 44–45
               Froude efficiency, 402                     Gas turbine, aero-engines. See Aircraft gas turbines
               Fuel cells, 321, 497, 508–512             Gas turbines, 381
                 activation losses, 518–519                basic jet engine, 383–384
                 catalyst loadings, 501                    CCGT, 381
                 cell voltage efficiency, 522               closed cycle, 382f
                 coefficients to defining losses, 523t       combustion in, 415–420
                 efficiency, 515–516                        cycle, 382–384
                 fluorinated polymer, 500                   cycle analysis, 384–401
                 fuel crossover and internal currents losses, 519–520  efficiency, 386, 395f
                 hydrogen, 498f                            heat exchanger, 389–396
                 hydrogen sources, 523                     heat exchanger effectiveness, 389
                  AR, 524–525                              ICR, 381
                  POX reforming, 524                       intercooling, 396–401
                  steam reforming, 524                     isentropic temperature ratio, 387–388
                 hydrogen–oxygen, 511–512                  maximum net work, 388
                 ions in cell, 517f                        maximum pressure ratio, 386–387
                 lanthanum manganite, 503                  mean temperature, energy addition, 388
                 mass transfer losses, 521                 mean temperature, energy rejection, 388
                 methanol fuel processor, 501              net shaft power output, 401
                 Ohmic losses, 520–521                     net thrust, 410
                 overall response, 522                     open cycle, 382f
                 PEM, 519–520                              power density, 381
                 platinum-ruthenium alloy catalysts, 501   power/bulk ratio, 381
                 power densities, 500                      power/weight ratio, 381
                 space shuttle, 500                        reheat, 396–401
                 sulphonic acid, 500                       road vehicles, 395
                 temperature effect on operation, 512–515  simple gas turbine cycle analysis, 384–401
                 theory, 503–504                           types, 382
                  electric cells, 504–507                  work ratio, 386
                  electrochemical potential, 507–508     Gasoline, 238t
                 thermodynamics in steady state, 516–518  Gasoline direct injection (GDI), 354–355
                 types, 498–503, 499f                    Gay-Lussac’s law. See Charles’ law
                 yttria-stabilised zirconia, 502–503     Gibbs, 26
               Fuel injection, 320, 323–324, 355         Gibbs energy, 24–25, 171, 247–249
                 diesel, 354                               with composition, 258–260
                 spark ignition, 352                       of ideal gas, 182–183
               Fuel-air ratio. See Air-fuel ratio          and phases, 26–27
               Fuel(s), 209–211                            significance of minimum, 28–29
                 crossover and internal current losses, 519–520  use and significance, 25
                 structure, 209                          Gibbs function. See Gibbs energy
               Functional relationships, 141             Gibbs potential. See Gibbs energy
                                                         Gibbs rule. See Two-property rule
               G                                         Gibbs–Dalton law, 195–196
               Galvanic cell, 507, 508f                  Gibson scale, 335t
               Gas                                       Glassman, 317–318
                 ideal, 112, 135, 146–147, 151           Global warming, 319–320
                 superheated, 43–44, 423                 Governing
                 van der Waals, 146–147, 151–152, 171      equations, 313
               Gas constant, 65, 67                        qualitative, 324, 338
                 specific, 96, 111–112                      quantitative, 323–324
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