Low-T, Low-Q Cryocoolers for Science Instruments

Metadata Updated: February 28, 2019

The purpose of the planned research is to advance the current space science instruments through the development of light weight and low power cryocoolers. Currently, space science instruments are limited in mission goals due to shortcomings in state-of-the-art coolers. Therefore, the goals of this project are to (a) thoroughly design, theoretically demonstrate, and parametrically study complete single or multi-stage cryocoolers at 35K, 10-6K, and 2K; (b) perform component-level and system-level, two-dimensional and three-dimensional computational fluid dynamics simulations; (c) conduct experimental tests for separate-effects measurements, heat load curve development, loss scaling, tilt sensitivity testing, and space instrument integration testing.

The research will take place in three stages. These include a stage for theoretical design and development, computational simulation, and experimental testing. The theoretical design will begin will analyzing the regenerator filler material. The factors influencing the selection include thermo-physical properties, manufacturability, cost, toxicity, and life cycle. The material selection as well as geometrical considerations will be taken into consideration. The next step of the theoretical design will involve the use of industry standard techniques as well as various software to design three single-stage or multi-stage cryocoolers that can achieve 35K, 10-6K, and 2K cold end temperatures at low powers. This analysis will provide insight on the feasibility of the models.

The next step is to fully validate the theoretical models using computational simulations in ANSYS FLUENT. The simulations will provide a deeper understanding about the multidimensional flow effects that could have a substantial influence on the designs. After the simulations are completed, a series of experiments will be conducted to test various effects such as heat load curve development, loss scaling, tilt sensitivity, and space instrument integration. These experiments will conducted in our laboratory using low temperature cryocoolers currently available.

The impacts and scientific strides resulting from this project would be multifold and will result in innovative advanced space technology for scientific exploration and discovery. Development of low power 35K, 10-6K and 2K cryocoolers is required to cool the next generation of science instruments. 35K coolers are needed for mercury cadmium telluride long wave IR detectors. 10K - 6K coolers are needed for arsenic-doped silicon detectors which operate in the IR spectrum. 2K coolers are needed as the upper stage for lower temperature Adiabatic Demagnetization Refrigeration (ADR) systems for X-ray spectrometers. The comprehensive design, optimization, theoretical characterization, and experimental testing of space science instrument cryocooler would be novel and innovative. Furthermore, not only will this project contribute to the accomplishment of the thermal management needs of NASAs Grand Challenges and build on existing OCT funded projects, but would also result in the advancement of the forthcoming educational and research objectives.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_91179
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 2de252b7-e784-46a3-b885-0cbf35420533
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-10-01
Homepage URL https://techport.nasa.gov/view/91179
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 97e205aaeb30f88c3b6e37ab56dff015f99e552b
Source Schema Version 1.1

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