7-128 Air (cp = 1.005 kJ/kg · °C) is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. Air enters the heat exchanger at 95 kPa and 20°C at a rate of 1.6 m3/s. The combustion gases (cp = 1.10 kJ/kg · °C) enter at 180°C at a rate of 2.2 kg/s and leave at 95°C. Determine a) the rate of heat transfer to the air, b) the outlet temperature of the air, and c) the rate of entropy generation. | |
| View Solution | |
| << Back | Next >> |