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Heat and mass transfer in a cryogenic tank in case of active-pressurization

Scheufler, Henning and Gerstmann, Jens (2022) Heat and mass transfer in a cryogenic tank in case of active-pressurization. Cryogenics, 121, p. 103391. Elsevier. doi: 10.1016/j.cryogenics.2021.103391. ISSN 0011-2275.

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Official URL: https://www.sciencedirect.com/science/article/pii/S0011227521001491


Predicting the pressurant requirements is one of the key challenges for cryogenic propulsion systems. In this context, a numerical model to simulate the tank pressurization that considers evaporation and condensation phenomena was developed and applied. The novel solver combines a gradient-based phase change model with a weakly compressible multiphase solver of OpenFOAM based on the pressure implicit method with splitting of operator (PISO) algorithm. To maintain a sharp interface the mass source terms are applied to the cells adjacent to the interface. First, the model is validated against two analytical solutions: the one-dimensional phase change problem and secondly, the growth of a vapor bubble in a superheated liquid in the absence of gravity. In a second step, the validated model was applied to a cryogenic pressurization experiment. The measured pressure behavior could be confirmed with the numerical model being in a good approximation. With the numerical model further insights into the physical behavior could be achieved. The condensation and evaporation effects have a significant impact on the pressure development during and after the pressurization. The mass flows due to phase change occurring at the vapor-liquid interface depend on interface location and time. Directly at the wall, evaporation becomes dominant while condensation occurs at the center area of the liquid surface.

Item URL in elib:https://elib.dlr.de/147819/
Document Type:Article
Title:Heat and mass transfer in a cryogenic tank in case of active-pressurization
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:January 2022
Journal or Publication Title:Cryogenics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:p. 103391
Keywords:Pressurization, Phase change, CFD, Propellant management
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Project TRANSIENT, R - Lead Project - Upper Level Research Network
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Transport and Propulsion System
Deposited By: Scheufler, Henning
Deposited On:21 Dec 2021 09:43
Last Modified:04 Nov 2022 09:03

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