Department of Process Engineering

https://www.univ-soukahras.dz/en/dept/gp

Lecturer	Naima HABACHE
Information	Master - chemical engineering Department of Process Engineering Website : https://www.univ-soukahras.dz/en/module/4576 Semester : S2 Unit : UEF 1.2.1 Credit : 6 Coefficient: 3
Content	Chapter 1: Humidification (6 weeks) Principle. Applications. Moisture levels. Equipment used (cooling tower, air cooler). Humid air diagrams. Humidity thermometer. Moist air mixture (calculation of the moisture content of the mixture, Mollier diagram (enthalpy, absolute humidity). Sizing a cooling tower. Chapter 2: Drying (3 weeks) Different types of dryers. Choice of dryers. Drying methods (continuous, discontinuous, counter-current, co-current, convection, conduction, etc.). Drying mechanisms. Material and enthalpy balances in a dryer. Calculation of drying speed and duration. Chapter 3: Evaporation (3 weeks) Introduction. Main factors influencing evaporation. Heat and material balance at the evaporator (simplified). Different types of evaporator and different circulations. Calculation of the exchange surface (simplified or multiple-effect evaporator). Comparison between counter-current and co-current multiple-effect evaporation.) Different types of evaporation processes (compression, ejecto-compression, heat pump, absorption systems). Ancillary equipment (condensers, gas-liquid separator). Chapter 4: Crystallization (3 weeks) Some fundamental aspects. The different stages of crystallisation. Effect of impurities on crystal formation. Crystallisation reactors (batch and continuous). Adsorption of a solute in the liquid phase in a fixed bed tower (percolation).
Evaluation	Continuous assessment: 40%; Exam: 60%.