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. Heat exchanger is a device in which heat is transferred from one fluid to another. The apparatus consists of a concentric tube heat exchanger. Hot water flows through inner tube in one direction only and cold-water flows through the outer tubes. Direction of cold fluid flow can be changed from parallel or counter to hot water so that unit can be operated as parallel or counter flow heat exchanger. For hot water, a recirculation type water tank is provided, fitted with heaters. A special arrangement is provided to control the heat input to 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 recirculation type water tank. It has an interfacing unit designed by Engineers along with Lab view 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