Wood sawdust at 25 C temperature containing 40 Agrical moisture is given to the dryer at 579 m/hr at alow speed and separated from the dryer at 50 C as 15% moisture and 85% dry wood chips by weight. The air enters the dryer with wood sawdust in parallel flow at 110C and leaves the dryer at 50C. Establish the energy balance. Calculate the amount of air required for drying. Data: latent 2383 kj/kg of water at 30 C The specificicide of wood chips 2.38 kj/kg C The specific heat of air is 1.05 kj/kg C Specific fog of water-4.184k/kg "C