Inscrição na biblioteca: Guest
Arquivos
Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

ISBN Imprimir: 978-1-56700-497-7 (Flash Drive)
ISBN On-line: 978-1-56700-496-0

Experimental Investigation of Thermal Contact Conductance at High Interface Temperature

DOI: 10.1615/IHMTC-2019.1840
pages 1097-1102

Arun Chand
AVTAR (Aerodynamics Visualization and Thermal Analysis Reseach) Lab, Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India

Khursheed Anwar Khan
AVTAR (Aerodynamics Visualization and Thermal Analysis Reseach) Lab, Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India

Andallib Tariq
Aerodynamics Visualization and Thermal Analysis Research (AVTAR) Laboratory, Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Uttarakhand-247667, India

Resumo

A unique and precise experimental facility is designed and developed to characterise the interfacial heat transfer under high temperature. Steady-state experiments have been performed to evaluate the TCC in stainless steel (SS) contact under both ambient as well as vacuum operating condition (0.04 Pa). The difference in gas/gap conductance and spot conductance is reported under the interface temperature of 300 °C and varying contact pressure (1.7-7.7 MPa). The interfacial interactions for two geometrically identical cylinder arrangements have been studied under steady-state which are in contact at their flat surface and are subjected to axial force. Thermocouple as well as Infrared thermography technique, is employed for temperature measurements for better accuracy and thermal visualisation. The investigation demonstrates the trend of thermal contact conductance obtained over a limited range of parameter.