Designing for Powered Flight on Titan: Preliminary Testing and Analysis of a Thermal Control Design for the Dragonfly Battery Module

Date

7/10/2022

Journal Title

Journal ISSN

Volume Title

Publisher

51st International Conference on Environmental Systems

Abstract

Dragonfly is a rotorcraft lander that will explore a variety of surface locations on Saturn's moon Titan. During powered flight, the Dragonfly lander will draw power from a 24-cell battery system. Due to the cryogenic atmosphere on Titan, the Dragonfly lander will be insulated with Rohacell around the exterior surfaces � however, this poses a unique design challenge for powered flight, as the battery and other components need to be kept cool while they dissipate significant heat during this phase. In order to assess a thermal control design to cool the battery system during powered flight within the insulated lander, a sub-scale 9-cell thermal module was tested at the Johns Hopkins Applied Physics Laboratory. The results demonstrate the importance of having both passive and active thermal controls.

Description

Krithika Balakrishnan, Johns Hopkins Applied Physics Laboratory, US
G. Allan Holtzman, Johns Hopkins Applied Physics Laboratory, US
James E. Parkus, Johns Hopkins Applied Physics Laboratory, US
Robert F. Coker, Johns Hopkins Applied Physics Laboratory, US
Daniel Y. Jeong, Johns Hopkins Applied Physics Laboratory, US
Carl J. Ercol, Johns Hopkins Applied Physics Laboratory, US
ICES101: Spacecraft and Instrument Thermal Systems
The 51st International Conference on Environmental Systems was held in Saint Paul, Minnesota, US, on 10 July 2022 through 14 July 2022.

Keywords

Thermal, Battery, Testing, Power, Control

Citation