Conveners
C2Po1D: Thermophysics III: Numerical Studies
- Takehiro Himeno (The University of Tokyo)
- Justin Pesich (NASA Glenn Research Center)
In order to develop higher power density motors and generators for aircraft applications, the higher magnetic field generated by stators is needed to create larger torque. The current density of conductors of stators should also be higher to generate a large magnetic field. Therefore, cryogenic liquid cooling for stators is needed to prevent overheating problems. The Ohio State University...
Abstract The PIP-II Cryogenic Distribution System (CDS) connects the helium plant to the superconducting linac consisting of 23 cryomodules. The regulation of the helium stream flowing by the PIP-II CDS is carried out by means of control valves located in the Distribution Valve Box. The cryomodules are supplied of helium from individual Bayonet Cans. The entire CDS process lines are shielded...
Exergy analysis was applied to the evaluation of helium internal purifier in this paper. The important operating parameters has been given to determine the exergy destructions in components as well as in the entire cycle of internal purifier. The analysis results show that the recovery of liquefied air energy can improve the performance of purifier and the exergy destruction of different heat...
Abstract：In order to investigate the heat transfer mechanism of helium-based pulsating heat pipe, a two-dimensional numerical model of a four-turn helium-based pulsating heat pipe was developed. The model was numerically solved based on the Volume of Fluid (VOF) method, and the initial state and operating state of the helium-based pulsating heat pipe were simulated. The initial state is a...
The specific heat of helium rises rapidly below 20 K, resulting in increased loss of the regenerator. The adsorption regenerator using the adsorbed helium as the regenerator material is the effective method to improve the performance of 4 K cryocoolers. In this paper, we use Grand Canonical Monte Carlo method to simulate the adsorption of helium on the MOF-5 below 20 K, and the effect of...
Modeling of condensation of gases including O2 and CH4, in the presence of high concentrations of noncondensables, is needed for the design and analysis of ISRU systems. The objective of this study is to provide the Generalized Fluid System Simulation Program (GFSSP) computer code with the capability of scoping analysis of condensation in the presence of noncondensables in internal flow...
