NASA SBIR 2004 Solicitation


SUBTOPIC TITLE:Thermal Materials and Management
PROPOSAL TITLE:Non-Toxic, Low Freezing, Drop-in Replacement Heat Transfer Fluids

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Mainstream Engineering Corporation
200 Yellow Pl
Rockledge ,FL 32955 - 5327
(321) 631 - 3550

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Michael   Rizzo
200 Yellow Place
Rockledge, FL  32955 -5327
(321) 631 - 3550

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Drop-in heat transfer fluids replacements for ITCS and EVA suits were down-selected and characterized in Phase I for various metrics including density, heat capacity, viscosity, freezing point, freezing expansion, toxicity, NFPA rating, flash point, materials compatibility, heat transfer coefficients, and several Figures of Merit related to heat transfer, pressure drop, and pump work. Optimized solutions had freezing points of about -30 C and freezing volume expansions 50%-75% less than water. The toxicity of the fluids is predicted to be "low" and also compatible with SS, BNi-2, PTFE and pEVA. The heat transfer Figures of Merit were 75-100 relative to water ("100"), and better than propylene glycol and organic heat transfer fluids. The pump work metric was only about 60% higher than water. We also identified a superior pH buffering agent to compensate for CO2 absorption and demonstrated a biocide "package" to prevent any microbial growth. The Phase II effort will optimize and comprehensively characterize these fluids (including toxicity), perform life testing, and deliver fluids to NASA at the end of the project.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Potential NASA applications include heat transfer fluids for ITCS and EVA suits.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Commercial applications include automotive coolants (antifreeze), Stationary Industrial and Process Refrigeration secondary cooling loops, electronics cooling, fuel cells, and industrial process coolants for chemical production.

Form Printed on 08-01-05 13:52