Track 1 Session 10

9:10 to 10:10 a.m. Thursday, June 17, 2010

HALT/HASS System Design

There are many ways to design a system that will support HALT/HASS chambers. Some ways are better than others and this presentation will cover all important considerations that should be made in the system design — from understanding liquid nitrogen and the costs associated with supplying a chamber with LN2 to actually sizing the right storage tank for your system and designing the vacuum jacketed pipe. We will discuss the importance of utilizing vacuum insulation technology and the cost savings associated with it. Transferring liquid at -300°F to ensure good quality cooling power is instrumental in the operation of the HALT/HASS system and using vacuum technology ensures the chamber will see cold liquid. This presentation is focused on reducing the overall cost of ownership of the HALT/HASS system.

Key Words: HALT/HASS System Design, Vacuum Technology

Dave Vaughan

Chart Inc.

New Prague, Minnesota