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Test Readiness Report Pressure loss tests with LN2 on pleated screen samples

Fischer, Alexander (2011) Test Readiness Report Pressure loss tests with LN2 on pleated screen samples. Project Report. RYTA-CUST-TRR-05-A. DLR Bremen. 233 S. (Unpublished)

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The current focus on research of advanced cryogenic upper stage technologies is the development of Propellant Management Devices (PMD). Main elements of a PMD are metallic screens. These screens are used for multiple purposes, such as to filter the propellant and oxidizer for example. But there is another major task for such screens: they are able to detain gas bubbles in a liquid flow. This is important to provide a pure liquid flow of propellant and oxidizer to the spacecraft’s engine. Regarding to this the Bubble Point becomes important. It describes the maximum pressure difference across a screen, when gas bubbles can break through. It is of importance, that in a feed line system the pressure drop across a metallic screen device never becomes higher than the Bubble Point of the used screen. Otherwise a gas-free fluid flow cannot be provided. For that reason it is important to know the pressure loss behaviour of metallic screen elements. DLR Bremen provides in cooperation with EADS Astrium Bremen tests for screen samples of metallic screens. As test liquids liquid nitrogen and water are used. This document describes the experiment setup for LN2.

Item URL in elib:https://elib.dlr.de/104998/
Document Type:Monograph (Project Report)
Title:Test Readiness Report Pressure loss tests with LN2 on pleated screen samples
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:11 October 2011
Refereed publication:No
Open Access:No
Number of Pages:233
Keywords:LN2, pressure loss, pleated Screen samples, PMD
Institution:DLR Bremen
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Transport and Propulsion System
Deposited By: Behnke, Manuela
Deposited On:02 Aug 2016 11:58
Last Modified:02 Aug 2016 11:58

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