Conveners
C3Or3C: Instrumentation, Visualization, and Controls III
- Amar Karki (Scientific Instruments)
- Austin Capers (Scientific Instruments)
SLAC National Accelerator Laboratory has upgraded to LCLS-II, featuring a 4 GeV superconducting linear accelerator composed of 37 cryomodules and two large helium refrigeration systems with a cooling capacity of 4 kW at 2.0 K. In this paper, we provide an overview of the instrumentation and controls for the Cryoplant, Cryodistribution, and Cryomodules, spanning from the instruments themselves,...
SLAC National Accelerator Laboratory has upgraded to LCLS-II, featuring a 4 GeV superconducting linear accelerator composed of 37 cryomodules and two large helium refrigeration systems with a cooling capacity of 4 kW at 2.0 K. This paper focuses on the Helium Refrigeration System (HRS) controls and automation. It presents the various automated functions, sequences, control logics and machine...
Cryogenic fluid flow is a critical measurement parameter but is difficult to properly measure due to the extreme environmental conditions and the frequent presence of multiphase flow during saturated liquid transfers. Multiphase flow proves challenging for most flow measurement methodologies; furthermore, additional measurements of volume fraction, quality, and slip velocity are often...
The Coriolis mass flowmeter (CMF) has the advantages of a simple structure and high measurement precision. Compared with liquid nitrogen (LN2) and water, the density of liquid hydrogen (LH2) is more than one order of magnitude smaller, which leads to significantly different flow-induced vibration (FIV) characteristics in the CMF. The fluid-structure interaction (FSI) theory model for the U...
