About Air Conditioning and ventilation
Physical Properties of air; composition of air, air pressure, air temperature, air humidity, heat contents of air, measurement of humidity. Principles of air conditioning, comfort and industrial air-conditioning. Basic heat transfers and mass transfer, application to textile industry. Refrigeration equipment, primary and secondary refrigerants, Psychometric chart and its use, calculation of requirements, complete calculation of the simple air-conditioning system. Air distribution systems, duct design, distribution equipment. Design of an air conditioning plant for a textile industry. Humidification: Humidity, measurement of humidity, automatic temperature and humidity control; pneumatic, electric and hydraulic systems. Dehumidification. Equipment selection and design, humidifiers, dehumidifiers, fans and diffusers, prevention of noise and vibration, cooling towers. Ventilation Hygienic aspects of ventilation; aims of ventilation, Industrial health hazards (dust, high temperature, high humidity, deleterious gases, and liquids), types of ventilation: general air change ventilation, local ventilation, cleaning air of suspended matter: dry cleaning, wet cleaning. System of air change in textile mill ventilation: upper-level delivery, low-level delivery, active system of delivery, dustless system of delivery, features of air delivery and removal from windowless buildings. Equipment. Ventilating, humidifying and air conditioning installations employed in textile mills processing different Fibers Illumination Introduction, requirement of illumination in the different sections of textile Industry, effect of illumination on working efficiency. Practical: Practical work will be based on the contents of the course.