ABSTRACT
Suppose diesel is sprayed into a diesel engine. The drops are assumed to instantaneously vaporize and mix with air. If reaction occurs as a homogeneous burn under finite kinetics, how much time does it take to burn? What will be the rate of temperature and pressure rise? Similarly, if natural gas along with air is premixed and injected into a gas turbine combustion chamber of prescribed volume V, how much is burned and what is the temperature? What is the maximum firing rate in a gas turbine before the flame blows out? These questions will be answered in this chapter. We analyze some simple engineering problems first for combustion within closed system at constant volume and pressure, and then for open systems, a plug flow reactor (PFR) or a perfectly stirred reactor (PSR). Finally, resistance concept is introduced for predicting burn rates of carbon particles and droplets.
