DESCRIPTION:

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. Flow rates of hot and cold water are measured using Rotameters. A magnetic drive pump is used to circulate the hot water from a re-cycled type water tank, which is fitted with heaters and Digital Temperature Controller.

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 of NATIONAL INSTRUMENTS, USA. This software is compatible to interfacing unit designed by “Lab Smith”. 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.

EXPERIMENTATION:

• To calculate the Rate of Heat Transfer
• To calculate the LMTD.
• To calculate the Overall heat transfer co-efficient.
• To compare the performance of Parallel and Counter flow heat exchanger.

UTILITIES REQUIRED:

• Water supply 5 lit/min (approx.) and drain.
•  Electricity Supply: 1 Phase, 220 V AC, 3 kW.
•  Floor area: 2 m x 0.6m
•  Computer System: Pentium IV with DVD Drive, Windows 7, MS-Office pre-loaded. One USB slot required in PC for DATA ACQUISITION CARD.

TECHNICAL DETAILS : 

Ordering Details:

JIHT-1011

COMPUTER CONTROLLED - PARALLEL FLOW COUNTER FLOW

 HEAT EXCHANGER (With Data Logging Facility)