Modified Ionic Liquid-Based Phase Change Materials as Effective Heat Exchangers, Phase II

Metadata Updated: May 2, 2019

Future manned mission venturing into deep space will require sophisticated thermal control systems to protect against extreme environments ranging from direct illumination by solar radiation to complete darkness. To manage these extremes, heat exchangers composed of phase change materials that can expand and contract without causing structural damage, will be essential. This project will further-engineer ionic liquid-based phase change materials (PCMs) to: (1) tune the melting point for ORION platform heat exchanger applications, (2) further-elevate thermal conductivity for both solid and liquid, and (3) evenly-regulate heat transfer among components. In Phase I, InnoSense LLC (ISL) developed effective PCM formulations and tested their thermal properties. These materials exhibited high heat of fusion (254-272 kJ/kg) with low volume expansion (4-6%) compared with the current standard, pentadecane (~6-7%). We demonstrated IonoTherm to have higher thermal conductivity, heat storage, thermal diffusivity and thermal inertia over pentadecane. Further, tests indicated that IonoTherm did not corrode metallic substrates, phase-separate or degrade. In Phase II, ISL will fine-tune the PCM formulation and evaluate it in a flight level prototype heat exchanger. A NASA prime contractor has teamed with ISL to transition ISL's IonoTherm, and perform independent testing during Phase II and beyond under simulated field conditions.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_93647
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id 85e90bc2-c4ce-48e4-9ea3-9da1ed908f0c
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2019-06-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash aca32ec5133bbf2f82323697a2e9d60e82d945be
Source Schema Version 1.1

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