NASA SBIR 2014 Solicitation


PROPOSAL NUMBER: 14-1 H3.01-9240
SUBTOPIC TITLE: Thermal Control for Future Human Exploration Vehicles
PROPOSAL TITLE: Variable Heat Rejection Loop Heat Pipe radiator

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Advanced Cooling Technologies, Inc.
1046 New Holland Avenue
Lancaster, PA 17601 - 5688
(717) 295-6061

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
William Anderson
1046 New Holland Ave.
Lancaster, PA 17601 - 5688
(717) 295-6104

CORPORATE/BUSINESS OFFICIAL (Name, E-mail, Mail Address, City/State/Zip, Phone)
William Anderson
1046 New Holland Avenue
Lancaster, PA 17601 - 5688
(717) 295-6104

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 3
End: 5

Technology Available (TAV) Subtopics
Thermal Control for Future Human Exploration Vehicles is a Technology Available (TAV) subtopic that includes NASA Intellectual Property (IP). Do you plan to use the NASA IP under the award?

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Thermal control systems are sized for the maximum heat load in the warmest continuous environment. This design process results in a larger radiator surface area than is needed for portions of a mission where the heat load is lower or the environment is colder. Now that NASA is refocusing its human missions to the much colder areas of exploration beyond Low Earth Orbit (LEO), the need for a variable heat rejection thermal control system increases. This SBIR project by ACT will develop a Variable Heat Rejection multi Loop Heat Pipe (VHR/mLHP) Radiator where the variable heat rejection feature will be provided by independently controlling the heat load for each LHP by heating and cooling the compensation chamber The proposed approach will use a series of individually controlled loop heat pipes (LHPs) receiving heat from a single phase pumped loop to perform the function of variable heat rejection while still closely controlling the loop setpoint temperature. This technology development effort has three main objectives that build on mature LHP technology: optimization of the liquid/LHP heat exchanger, investigation of the use of heaters or thermoelectrics for temperature control and shutdown of the individual LHPs, and characterization of the system performance when multiple LHPs are assembled in series. The purpose of this program is to develop a holistic approach for a variable heat rejection system design consisting of multiple heat exchangers and multiple individually controlled LHPs which can achieve high turn down ratios for variable heat rejection while increasing the system reliability and reducing the system power and mass. The proposed concept is flexible, as various configurations could be obtained to meet different mission parameters. The main advantage of this technology development effort is that it leverages already proven technologies to integrate a novel system that can achieve robust variable heat rejection.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The immediate NASA application of this technology is in the development of future human exploration vehicles, designed for deep space missions. These missions require thermal control systems capable of operating at fractions of their design heat load in the cold environment of deep space. In addition to manned exploration vehicles, this technology could be used as the thermal control system for any spacecraft or satellite designed to operate in deep space. The flexibility of the proposed concept allows for thermal control systems that can meet specific mission needs by varying the configuration of the LHPs. The proposed VHR/mLHP radiator is well-aligned with the NASA Strategic Roadmap (TA14 Thermal Management Systems) as it can be applied to a broad range of spacecraft and satellites that need variable heat rejection.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The technology developed in this SBIR is directly applicable to military, scientific or commercial satellites where precise temperature control is required. The proposed concept is commercially attractive, as it builds upon proven technologies and offers high-reliability, minimal mass and low power. The flexibility of the system means that meeting the specific needs of a satellite design or mission profile can be achieved by varying the configuration of the LHPs.

TECHNOLOGY TAXONOMY MAPPING (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.)
Heat Exchange
Passive Systems

Form Generated on 04-23-14 17:37