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Vol. 129, Issue 6, June 2011, pp.42-56

 

Bullet

 

 

Design and Development of Embedded System for the Measurement of Thermal Conductivity of Liquids
by Transient Hot Wire Method

 

*Nagamani GOSALA, **Raghavendra Rao KANCHI

* Department of ECE, Aurora Engineering College, Bhongir

** Department of Physics, Sri Krishnadevaraya University

Andhra Pradesh, India

E-mail: manigowd@gmail.com

 

 

Received: 4 May 2011   /Accepted: 20 June 2011   /Published: 30 June 2011

Handbook of Laboaratory Measurements book

 

Abstract: Thermal conductivity of polymers is an important property for both polymer applications and processing industry. The successful application of thermal insulating fluids in the last several years has demonstrated that such fluids can effectively control the heat loss. Understanding and controlling the thermal environment for oilfield operations has been a concern and research topic. As a consequence of this trend, there is huge demand for new methods of instrumentation to evaluate the performance of material properties and characterization. The main aim of the present study is the development of hardware and software for measuring the thermal conductivity of liquids using transient hot wire method. Because of the relatively short experimental times and large amounts of parametric data involved in the measurement process, embedded control of the measurement is essential. The experimental implementation requires a suitable temperature sensing, automatic control, data acquisition, and data analysis systems accomplished using an embedded system that has been built around the ARM LPC 2103 mixed signal controller.

 

Keywords: RTD temperature sensor PT 100, Platinum wire as heating source, LPC 2103 ARM processor, Keil μVision3

 

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