Computer Controlled – Shell & Tube Heat

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Present set-up is computer controlled with data logging facility. When the equipment is interfaced to computer, the end user has an access of every input and output of the setup and can log data of experiments. Shell and Tube Heat Exchanger are popular in process industries because they occupy less space and offer reasonable temperature drop. The apparatus consists of fabricated shell, inside which tubes with baffles on outer side are fitted. The present set up is 1-2 heat exchangers, with cold water flows through shell and hot water inside the tubes. For hot water, a recirculation type water tank is provided, fitted with heaters. A special arrangement is provided to control heat input the heater. Cold water at constant head condition is to be provided from laboratory overhead tank by the end user. Flow rates of hot and cold water are measured using flow sensors. A magnetic drive pump is used to circulate the hot water from the re-circulation type water tank. It has an interfacing unit designed by Engineers along with Labview software. This educational software allows/enables user to log the real time experimental data and tabulate the experimental/sample reading according to the requirement of experiment. User have a control on data logging, printing the stored data and preparing spread sheets in Excel. Flexible graph plotting facility is also available in the software.

System Water to Water. (1 – 2 shell & tube type)
Shell  Material Stainless steel. Insulated with ceramic wool and cladded with aluminum foil. Dia. 220 mm, Length 500 mm (Approx.) 25% cut baffles at 100 mm distance 4 Nos.
Tube D 13mm, OD 16mm approx., Length 500mm (24 Nos.)
Water Flow Measurement  low Sensor (2Nos.) one each for cold & hot fluid.
Hot Water Tank Made of Stainless steel (Insulated with ceramic wool)
Hot Water Circulation Magnetic Pump
Heaters  Nichrome wire heater (2 Nos.). Special arrangement to control heat input.
Control panel comprising of : Digital Temp. Controller : PID Controller, 0-199.9°C, (For Hot Water Tank)

Temperature measurement : Temperature Transmitter – 4Nos. with 4-20 mA Output.

Non Contact type. With Standard make On/Off switch, Mains Indicator etc.