Applying the First Law to Reacting SystemsFigure P13.55 provides data for a boiler and air...

Applying the First Law to Reacting Systems

Figure P13.55 provides data for a boiler and air preheater operating at steady state. Methane (CH4) entering the boiler at 25°C, 1 atm is burned completely with 170% of theoretical air. Ignoring stray heat transfer and kinetic and potential energy effects, determine the temperature, in °C, of the combustion air entering the boiler from the preheater.

Fig. P13.55