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26th National Symposium on Cryogenics and Superconductivity

22-24 February 2017
VECC
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DEVELOPMENT OF AN EXPERIMENTAL SETUP FOR EFFECTIVE THERMAL CONDUCTIVITY STUDIES OF INSULATIONS BETWEEN 77K AND 300K
 
Content: Thermal insulation is an important aspect of any cryogenic system. The choice of a given insulation for a specific application depends on various factors, such as effectiveness of the insulation, the cost, easiness of application etc. The data on the thermal conductivities of several insulations at cryogenic temperatures are not available in the literature. Towards the above, we have designed and fabricated an experimental set up to determine the effective thermal conductivity of cryogenic insulations between 77 K and 300 K. In this set up, the insulation under study is positioned between a heater and a 77 K surface formed by a liquid nitrogen vessel, inside a vacuum chamber. The effective thermal conductivity of the insulation is determined by the measurements of temperature of the heater, applied heat load and the evaporation rate of liquid nitrogen from the LN2 vessel. The design, fabrication of the setup and the preliminary experimental results of thermal conductivities of some sample insulations are presented here.
Id: 49
Place: VECC 
1/AF, Bidhan Nagar Kolkata - 700008

Room: Meghnad Saha Auditorium, SINP-VECC Campus
Starting date:
--not yet scheduled--   
Duration: 00'
Primary Authors: Mr. SKARIA, Mathew (Department of Mechanical Engineering TKM College of engineering, Kollam.Kerala.691 005)
Co-Authors: Prof. SHAFI, K.A. (Department of Mechanical Engineering TKM College of engineering, Kollam.Kerala.691 005)
Dr. THOMAS, Rijo Jacob (Department of Mechanical Engineering TKM College of engineering, Kollam.Kerala.691 005)
Mr. VASUDEVAN, K. (Department of Mechanical Engineering TKM College of engineering, Kollam.Kerala.691 005)
Mr. MUHAMMED, Anshad D. (Department of Mechanical Engineering TKM College of engineering, Kollam.Kerala.691 005)
Prof. KASTHURIRENGAN, Srinivasan (CCT IISc Bangalore 560012)
Presenters: Mr. SKARIA, Mathew
Material: paper
 
Included in session: Poster Session 1: Abstract ID 1,2,3,8,9,15,16,21,23,25,27,28,29,30,42,44,46,47,49,50,51,58,61,65,79,81,82,87,96,97,98, 106,126,130,189
Included in track: Cryogenics Storage and transfer lines / Space Research / Cryogenic Test & Test Facilities