Outdoor air (cp 5 1.005 kJ/kg8C) is to be preheated by hot
Chapter 8, Problem 881(choose chapter or problem)
Outdoor air (cp 5 1.005 kJ/kg8C) 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 101 kPa and 308C at a rate of 0.5 m3 /s. The combustion gases (cp 5 1.10 kJ/kg8C) enter at 3508C at a rate of 0.85 kg/s and leave at 2608C. Determine the rate of heat transfer to the air and the rate of exergy destruction in the heat exchanger.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer