Heat exchangers are widely used in various industries. Finned tube Heat Exchanger is a Tube-in-tube type heat exchanger. The inner tube is of Stainless steel with fins on its outside surface. Hot water flows through inner tube and cold fluid flows through the outer tube. For hot water, a recirculation type water tank is provided, fitted with heaters and Digital temperature controller. Cold water at constant head condition is to be provided from laboratory overhead tank by the end user. 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. Flow rates of hot and cold water are measured using Rotameters. A magnetic drive pump is used to circulate the hot water from the re-circulation type water tank. Digital temperature indicator with multichannel switch is fitted in control panel to observe the temperature of hot and cold fluids at inlet and outlet of heat exchanger.

• An ENGLISH instruction manual consisting of experimental procedures, block diagram etc. will be provided along with the Apparatus.
• The whole set-up is well designed and arranged on a rigid structure painted with industrial PU Paint.

Experimentation/Learning Objectives

•To calculate the LMTD.

•To find Heat transfer rate.

•To find out overall heat transfer co-efficient.

Utilities Required

•Water supply: 5 lit/min (approx.)

•Floor Drain.

•Electricity Supply: 1 Phase, 220 V AC, 50 Hz, 32 amp MCB with earth connection (Earth voltage should be less than 5 volts)

•Floor area: 1.75 m x 1m.