Discuss the below:
Q: Atmospheric air of 40% relative humidity and temperature T8 = 300 K is in parallel flow over a series of water-filled trays, with U8 = 12 m/s. What is the rate at which energy must be supplied to ach of the first three trays to maintain the water at 300 K? You must solve the problem step by step.
![184_Trays.jpg](https://secure.tutorsglobe.com/CMSImages/184_Trays.jpg)