Hi,
I want to construct a mass and energy balance on a drying unit and I'm having some difficulties. See below for details
FEED------> (DRYER) -------> Product
seaweed:30 seaweed: 30
water:70 water: 0
tot:100 kg/hr tot: 30 kg/hr
So basically lets say hot air at 150 degrees Celsius is fed into the dryer and evaporates the water. Essentially the hot air needs to evaporate 70 kg/hr of water from the feed. The feed water content is 70% and gets reduced to 0% in the product stream. I want to perform a material balance to know the mass of air needed to dry this amount of water per hour. Lets also say the feed is initially at room temperature 25 degrees Celcius. Do I need some other variables to be known for the balance to solve? I want to find the mass of air entering assuming 0% water in the air and the mass of air leaving with x amount of water in the outlet of the air. Also what is the energy content in the air inlet and outlets, how much energy is required to dry the feed.
Any help would be greatly appreciated.
Thanks