An Advanced Cooling System for In-Situ Resource Utilization

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,951.00
Award Year:
2010
Program:
SBIR
Phase:
Phase II
Contract:
NNX10CA71C
Award Id:
90677
Agency Tracking Number:
084391
Solicitation Year:
n/a
Solicitation Topic Code:
X7
Solicitation Number:
n/a
Small Business Information
P.O. Box 71, Hanover, NH, 03755
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
072021041
Principal Investigator:
Jeffrey Breedlove
Principal Investigator
(603) 643-3800
jfb@creare.com
Business Contact:
Robert Kline-Schoder
Vice President
(603) 640-2487
contractsmgr@creare.com
Research Institution:
n/a
Abstract
NASA plans to produce cryogenic oxygen and hydrogen to power regenerative fuel cells for lunar surface exploration. The oxygen and hydrogen will be produced by electrolysis of water from In Situ Resource Utilization (ISRU) reactors. The electrolysis products will be warm high-pressure gases, requiring significant cryocooler power to achieve the desired storage conditions. This power can be reduced by expanding the gases adiabatically from the electrolysis pressure to storage pressure. We propose to develop innovative turboalternators to maximize this effect and convert the extracted fluid power into useful electric power. Small flow rates and high fluid densities require turbine rotors that are extremely small and operate at high speeds. Cryogenic gas bearings and miniature rotor fabrication techniques are key features that create high efficiency in our approach. The gas bearings also enable reliable, long-life, maintenance-free operation. The proposed development will leverage decades of Creare experience with cryogenic gas-bearing turbomachines. In Phase I, we developed optimized turboalternator designs by conducting trade studies, specifying design details, analyzing performance, and demonstrating bearing operation with two-phase rotor flow. During Phase II, we will create a complete set of fabrication drawings, develop critical fabrication processes, fabricate a prototype turboalternator, and measure its performance at representative operating conditions.

* information listed above is at the time of submission.

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