DESCRIPTION:

This apparatus is designed to determine the thermal conductivity of insulating powder. The apparatus consists of two thin walled concentric copper spheres. Inner sphere houses Nichrome Wire heater. Insulating powder is filled between the two spheres. Heat flows radially outwards. Temperature sensors at proper positions are fitted to measure surface temperatures of spheres. Heat input to the heater is given through a variac and measured by Digital Voltmeter & Digital Ammeter. By varying the heat input rates, data can be obtained.

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 NSTRUMENTS, 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:

•  Determination of thermal conductivity of insulating powder.
•  Comparison of thermal Conductivity of insulating powder at different temperatures.

UTILITIES REQUIRED:

• Electricity Supply: 1 Phase, 220 V AC, 2 Amp.
• Table for set-up support.
• 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-531

THERMAL CONDUCTIVITY OF INSULATING POWDER

(With Data Logging Facility)