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

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX17CJ04C
Agency Tracking Number: 155713
Amount: $750,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2017
Solicitation Year: 2016
Solicitation Topic Code: Z2.01
Solicitation Number: N/A
Small Business Information
2531 West 237th Street, Suite 127, Torrance, CA, 90505-5245
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Kevin Yu
 Principal Investigator
 (310) 530-2011
Business Contact
 Kisholoy Goswami
Title: Business Official
Phone: (310) 530-2011
Research Institution
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.

* Information listed above is at the time of submission. *

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