3.51 A tray dryer is fed with 2000 kg of wet orthonitroaniline containing 15% water. The dried product contains 98.5% orthonitroaniline and rest water. Find the percentage of original water that is removed in dryer.

In distillation, what is meant by reflux, boilup, rectification section, and stripping section?

List 4 key difference between closed cell and open cells spray foam insulation

During flour milling, wheat grains are taken at a rate of 4 t/h and goes to the cleaning system. As a result of cleaning, 2% is removed in the form of foreign material and chaff. The cleaned grain is then tempered (moisture adjusted from initial to higher moisture to make the bran layer rubbery) before they pass through roller breaks. If the initial moisture content of of the grain is 13.2%, determine the weight of tempered grains if the tempering moisture is 14.5%. Determine the amount of water adsorbed during tempering per tonne of tempered grain. (Moistures are given in wet basis). Also, determine the amount of foreign material/chaff generated per tonne of tempered grain.