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A Compact, Light-weight, Reliable and Highly Efficient Heat Pump for, Phase I

Completed

Description

RTI proposes to develop an efficient, reliable, compact and lightweight heat pump for space applications. The proposed effort is expected to lead to (at the end of Phase II) a microclimate system that can remove 300 Watts of heat (in the cooling mode) requiring 92 Watts of electrical power. In the heating mode, the same system would provide up to 392 Watts of heat. The system is expected to weigh around 3.5 pounds (not including the power source) within a volume of about 1000 cc or 1 L. The design is based on a recently developed portable cooler for the Army. The performance of this system cannot be matched simply by using smaller versions of conventional designs, and is accomplished with recent advances in miniaturization and MEMS. Key technological innovations include use of a Wankel compressor with solid lubricants, system configuration for compact design, and design of condenser and evaporator for microgravity application. Phase I effort will concentrate on thermodynamic cycle, compressor, and solid lubrication. Design of the rest of the system, components and system testing and system integration would be undertaken in Phase II.

Benefits

Potential NASA Commercial Applications: The heat pump can also be useful to the Air Force for usage by flight-line maintenance and aircrew personnel, to the Army for dismounted soldiers as part of the Objective Force Warrior systems, and to fire departments across the country for usage by emergency and NBC cleanup personnel. The proposed system while used as a cooling unit has also immense commercial applications in cooling of computer chips/boards/systems and medical applications for patients with illnesses such as multiple sclerosis.

Details

Technology areaThermal Management Systems > Thermal Control Components and Systems > Heat Rejection and Storage
ProgramSmall Business Innovation Research/Small Business Tech Transfer (SBIR/STTR)
Lead organizationJohnson Space Center, Houston, TX
Start date2004-01-16
End date2005-01-17

Project contacts

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How to get involved

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

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