Performance improvement of cryosorption pump by enhancing thermal conductivity of epoxy-aluminum composite

Verma, Ravi and Nagendra, H N and Kumar, V B Mahesh and Vivek, G A and Kasthurirengan, Srinivasan and Shivaprakash, N C and Behera, Upendra (2019) Performance improvement of cryosorption pump by enhancing thermal conductivity of epoxy-aluminum composite. In: COMPOSITES PART B-ENGINEERING, 176 (1).

PDF com_par_eng_.pdf - Published Version Restricted to Registered users only Download (1MB) | Request a copy

Abstract

Cryosorption pumps are only possible solution to pump helium gas in Tokamak. In this paper, we report the performance improvement of cryosorption pump, whose pumping speeds are increased by enhancing the thermal conductivity of epoxy by mixing fine aluminium powder as filler into it. From experimental studies it is found that 35% volume fraction of filler in epoxy adhesive is optimum for the improved thermal conductivity without reduction of the bonding strength. The pumping speed of cryosorption pump is increased by 3.60 times for helium gas when compared to identical commercial cryosorption pump.

Item Type:	Journal Article
Publication:	COMPOSITES PART B-ENGINEERING
Publisher:	ELSEVIER SCI LTD
Additional Information:	copyright to this article belong to ELSEVIER SCI LTD
Keywords:	Resins; Adhesion; Thermal properties; Mechanical testing; Epoxy-aluminium composite
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	04 Dec 2019 11:18
Last Modified:	04 Dec 2019 11:18
URI:	http://eprints.iisc.ac.in/id/eprint/63886

Actions (login required)

View Item