Experimental and analytical studies on a foam insulated rigid type transfer line for use with liquid nitrogen

Patidar, Jyotish and Sumanth, R A and Behera, Upendra and Kasthurirengan, Srinivasan (2017) Experimental and analytical studies on a foam insulated rigid type transfer line for use with liquid nitrogen. In: 26th International Cryogenic Engineering Conference / International Cryogenic Materials Conference, MAR 07-11, 2016, Indian Cryogen Council, New Delhi, INDIA.

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Abstract

The transfer line is one of the important components of any cryogenic system needed to transport the cryogenic fluid from one location to another. Towards our efforts to develop a long rigid-type transfer line for liquid nitrogen (LN2) to transfer this fluid from a 5000 litre capacity vertical storage tank to the Helium liquefier (Linde Model 1610) located at a distance of nearly 50 m, we designed and fabricated several units of straight section transfer lines of length 6.5 m and they were integrated to make the long length transfer line. Each unit was fabricated with 0.5 inch dia. copper inner tube supported by spacers within 2 inch dia. PVC outer tube. Each section was foam insulated after the necessary instrumentation for temperature measurements. The individual sub units were integrated together with a small bellow section in between to take care of thermal contraction during use. We present here the analytical and experimental studies of the cool down and mass flow characteristics of a single foam insulated unit. These experimental studies are representative results of the performances of the long length rigid foam insulated transfer line.

Item Type:	Conference Proceedings
Series.:	IOP Conference Series-Materials Science and Engineering
Publisher:	IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Additional Information:	Copy right for this article belongs to the IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited:	20 May 2017 07:21
Last Modified:	20 May 2017 07:21
URI:	http://eprints.iisc.ac.in/id/eprint/56969

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