Dynamic Analysis of Large-Scale Transfer Operations for Liquid Hydrogen

Abstract

Transfer operations from onshore tanks to ship are a crucial component that needs to be understood and optimized to allow for large-scale seaborne transport of liquid hydrogen (LH2). In this work, we present a dynamic model that includes the main components required for loading operations of LH2. An important aspect for scaling-up is to quantify the effect of heat ingress in the pipelines. We implement a detailed pipeline model that we use to compare different insulation alternatives. Due to the nature of loading operations, the dynamic analysis, control strategy and controller tunings play an important role in the dynamic behaviour of the system. Here, we systematically analyse the dynamic behaviour of the system and develop a control strategy for LH2 loading operations. We implement this control strategy in the simulation model for LH2 loading. Keywords: Liquid hydrogen, Dynamics, Process control, Loading, Transfer operations, PID control

Dynamic Analysis of Large-Scale Transfer Operations for Liquid Hydrogen