Irreversible Phenomena

Ideals are simple and able to be easily understood, but never exist in reality. In this book a theory based on the second law of thermodynamics and its applications are described. In thermodynamics there is a concept of an ideal gas which satisfies a mathematical formula PV = RT. This formula can appro- mately be applied to the real gas, so far as the gas has not an especially high pressure and low temperature. In connection with the second law of thermo- namics there is also a concept of reversible and irreversible processes. The reversible process is a phenomenon proceeding at an infinitely low velocity, while the irreversible process is that proceeding with a finite velocity. Such a process with an infinitely slow velocity can really never take place, and all processes observed are always irreversible, therefore, the reversible process is an ideal process, while the irreversible process is a real process. According to the first law of thermodynamics the energy increase dU of the thermodynamic system is a sum of the heat dQ added to the system and work dW done in the system. Practically, however, the mathematical formula of the law is often expressed by the equation , or some similar equations derived from this formula, is applied to many phenomena. Such formulae are, however, th- retically only applicable to phenomena proceeding at an infinitely low velocity, that is, reversible processes or ideal processes.

Theory and its applications of irreversible phenomena in ignitions, combustion and detonation waves are explained Relative simple theory can easily applied to the practical calculation and industrial purposes Includes supplementary material: sn.pub/extras

Inhalt
Classical Ignition Theories.- Stochastic Theory of Irreversible Phenomena.- Nucleation in Phase Transition.- Shock Tubes.- Stochastic Ignition Theory.- Ignition in a Fuel Spray.- Ignition by Electric Sparks.- Nonequilibrium State.- Interaction Between Combustion and Pressure or Shock Waves.- Gaseous Detonation Waves.- Industrial Applications of Detonation Waves.