Indian Journal of Cryogenics
  • Year: 2019
  • Volume: 44
  • Issue: 1

Development of a 1000 l liquid helium dewar at CrTD, BARC

  • Author:
  • Naseem A. Ansari1,, Mukesh Goyal1, Rajendran S. Menon1, Mohananand M. Jadhav1, Naveen Kumar1, D.S. Pilkhwal1
  • Total Page Count: 5
  • Published Online: Jan 1, 2019
  • Page Number: 45 to 49

1Cryo-Technology Division, Bhabha Atomic Research Centre, Mumbai, India

*Email:ahmed@barc.gov.in

Abstract

A liquid helium (LHe) Dewar, with 1000 L nominal capacity, is developed at Cryo-Technology Division (CrTD), Bhabha Atomic Research Centre (BARC), Mumbai. The Dewar is designed for a normal evaporation rate (NER) of less than 1 percent per day. The Dewar is being successfully used as a LHe receiver vessel connected to a helium liquefier cold box. The measured evaporation rate as per the reduction in the weight of the Dewar is about 2.81/day for liquid nitrogen (LN2) and 10 l/day for LHe.

Keywords

Liquid helium dewar, Helium liquefier, Multilayer super insulation, Thermal shields