NASA SBIR 2005 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER:05 X3.03-8000
SUBTOPIC TITLE:Cryo & Thermal Management
PROPOSAL TITLE:Methane Liquid level Sensor

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Advanced Technologies Group, Inc.
641 SE Central Parkway
Stuart ,FL 34994 - 3984
(772) 283 - 0253

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
John   Justak
jjustak@advancedtg.com
641 SE Central Parkway
Stuart, FL  34994 -3984
(772) 283 - 0253

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
Advanced Technologies Group, Inc. proposes the development of a Methane Liquid-Level Sensor, (MLS) for In-Space cryogenic storage capable of continuous monitoring of liquid quantities to better than 1% accuracy. The proposed sensor builds on previous liquid hydrogen sensor development successes and patents. It can be utilized to measure cryogenic propellants, and sub-critical cryogenic fluids in use on a wide range of space applications and in ground applications to monitor fluids ranging from liquid methane to MMH and N2O4. The MLS can also indicate the presence of contaminants such as nitrogen used to purge the system. The current methods use either wire resistance measurements, capacitance or point sensors, combined with pressure and temperature measurements. The MLS will be lighter, require less energy to operate, and provide less heat leak than existing technologies. Current techniques will not function correctly in boiling or stratified liquid cryogens or in reduced gravity. During phase I, Proof-of Concept experiments will be performed with liquid methane. Commercial applications in the Power/fuel industry have been identified.

POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
Within the past few years, many technical reviews have indicated the need for advances in zero-g level sensor techniques. The absorption meter design lends itself well to a potentially low cost design. The tank could easily be made from any of the currently used metallic alloys used for the manufacture of cryogenic storage, and depending on the specific wavelength of light used for the optical attenuation measurement, inexpensive solid state electronics could make up the balance of the instrument . Test stands across the country constantly have troubles determining the levels of cryogen remaining in the tank. Level sensors fail and the crews must rely upon flow rate versus time calculations to determine the amount of cryogen remaining. This guess work would be eliminated with this sensor development.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
Advanced Technologies Group has recently been investigating a liquid methane sensor for future automotive and storage tank facilities. LNG is composed primarily of methane. LNG producing facilities are receiving a lot of attention as possible replacement fuels for diesel.

Advanced Technologies Group has recently been investigating a liquid oxygen sensor for home health care, in the area of oxygen therapy. The liquid methane sensor and the lox sensor are very similar. Currently, several home health liquid oxygen tanks utilize differential pressure measurements to determine liquid oxygen level remaining in the tank. This method is expensive, less accurate, and it biggest detriment to the system is the amount of heat leak introduces through the extra tubing.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

TECHNOLOGY TAXONOMY MAPPING
Biomass Production and Storage
High Energy Propellents (Recombinant Energy & Metallic Hydrogen)
Instrumentation
Optical
Photonics
Pilot Support Systems
Power Management and Distribution
Propellant Storage
Tankage
Testing Facilities


Form Printed on 09-19-05 13:12