DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Design and Flight Performance of the Combined Thermal Control System of the BOLIDE Experiment in Balloon Mission PMC Turbo/2018

Baturkin, Volodymyr and Kaifler, Bernd and Rempel, Dimitry and Kaifler, Natalie and Spröwitz, Tom and Henning, Fabian and Roßi, Philipp (2019) Design and Flight Performance of the Combined Thermal Control System of the BOLIDE Experiment in Balloon Mission PMC Turbo/2018. In: Collections. International Conference on Environmental Systems (133). 50 International Conference on Environmental Systems ICES -2020, 2020-07-12 - 2020-07-16, Lisbon, Portugal.

[img] PDF - Only accessible within DLR

Official URL: https://ttu-ir.tdl.org/handle/2346/86433


The Polar Mesospheric Cloud Turbulence experiment (PMC Turbo) is intended to observe and quantify the dynamics of small-scale gravity waves and instabilities in the upper mesosphere. The instruments aboard a stratospheric balloon include seven high-resolution cameras and a Rayleigh lidar (BOLIDE). BOLIDE provided profiles of atmospheric temperature up to 85 km altitude throughout the flight and consists of a laser, the electronic/optical equipment housed in a sealed electronics box, and a stand-alone telescope. Flight duration was ~5.9-days from Esrange/Sweden to northern Canada in July 2018 at altitude 38±2 km. Experiment BOLIDE uses two types of thermal control systems (TCS), an active one for the equipment in the electronic box and a passive system for the telescope. The most demanding component of BOLIDE is the laser, which generates 150 W of heat and operates at temperature level +10…+26 oC. Active combined TCS included the liquid cooling of the laser installed on a cold plate and forced gas convection inside the sealed cabinet for cooling of units distributed on three levels. The heat from the laser and circulating gas is removed by circulating liquid via heat exchanging surfaces and is transferred to the radiator. The closed liquid loop consists of a tank, vain pump, connecting lines, heat exchangers, cold plate, temperature-regulating electronics and a 1.6 sq.m one-sided radiator with a total capacity of rejecting 450 W into space. The proposed TCS design allows modification of the inner layout of components in the electronics box, adding/removal/replacement of the units, isolation from external thermal disturbances, and protecting the instrument in a clean gas atmosphere. An overview of the TCS for the BOLIDE experiment, the approaches used in the thermal mathematical model as well as details of the elaborated solutions and flight data are presented in this paper.

Item URL in elib:https://elib.dlr.de/135694/
Document Type:Conference or Workshop Item (Speech)
Title:Design and Flight Performance of the Combined Thermal Control System of the BOLIDE Experiment in Balloon Mission PMC Turbo/2018
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kaifler, BerndDLR, IPAhttps://orcid.org/0000-0002-5891-242XUNSPECIFIED
Kaifler, NatalieDLR, IPAhttps://orcid.org/0000-0002-3118-6480UNSPECIFIED
Spröwitz, TomUNSPECIFIEDhttps://orcid.org/0000-0001-5369-6919UNSPECIFIED
Date:November 2019
Journal or Publication Title:Collections. International Conference on Environmental Systems
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
EditorsEmailEditor's ORCID iDORCID Put Code
Series Name:ICES-2020-133
Keywords:balloon, high altitude, optics, lidar, thermal control, liquid cooling
Event Title:50 International Conference on Environmental Systems ICES -2020
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Start Date:12 July 2020
Event End Date:16 July 2020
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Vorhaben Carbotherm (old), R - Middle Atmosphere
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Space Systems > Mechanic and Thermal Systems
Institute of Atmospheric Physics > Lidar
Deposited By: Baturkin, Volodymyr
Deposited On:07 Aug 2020 11:34
Last Modified:24 Apr 2024 20:38

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.