Computer Controlled – Experimental Water Cooling Tower

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Experimental water-cooling tower is a forced draft counter flow type cooling tower specially designed for the Engineering students to provide them insight about actual working of tower. In this system, air from a fan enters at the bottom of the tower and after passing through the mesh packing, discharges into the atmosphere via a duct. Airflow is controlled by a butterfly valve on the blower’s delivery line. Water is evenly distributed over the packing by nozzles at top of the tower. Water flow and temperatures can be measured and controlled with suitable instrumentation provided. A water tank at the bottom fitted with level gauge enables to show the exact evaporation loss. Front side acrylic sheet provides actual visualization of cooling tower operation. Air and water flow rates as well as inlet water temperatures can be varied to have different sets of readings. The present set-up has a facility to interface the system with computer which enables to log the experimental data using computer. The educational software and data-logging package has been developed for unit. The software environment base is of Lab view. This software is compatible to interfacing unit designed by Engineers. This software package provides a comprehensive educational software environment within which the investigations can be performed. This software is capable to tabulate the sample readings according to the requirement of experiment under study and results obtained can be compared. The real time data acquisition can be done by interfacing the set-up with computer using software. Software allows the user to have control on data logging, printing the stored data, preparing spread sheets in Excel etc.

Tower Material Stainless Steel Size: Cross-Section (150×150) mm, Height 750 mm
Packing Expanded wire mesh.
Air Circulation By forced draft fan, arrangement is done to vary air flow rate.
Air Flow Measurement Orifice meter with U-tube manometer.
Water Flow Measurement By Rotameter.
Hot Water Tank Material Stainless Steel, Double wall, insulated with ceramic fiber wool
Hot water circulation  Magnetic Pump
Heater Ni chrome wire heater
Temperature measurement By Temperature transmitter (4-20 mA)- 6 Nos.
Control panel comprises of  Digital Temp. Controller : PID Controller, (0-199.9°C), For hot water tank

With Standard make On/Off switch, Mains Indicator & fuse etc.