Transmission and Distribution of Photosynthetically Active Radiation (PAR) for Biomass Production in Exploration Missions [7226-270], Phase II

Metadata Updated: May 2, 2019

Physical Sciences Inc. (PSI) proposes to develop a plant lighting system which collects, transmits and distributes photosynthetically active radiation (PAR) for biomass production in planetary and transit missions. In this system, solar light or electric lamp light is collected by reflector optics and focused at the end of an optical fiber cable. The light is filtered by a selective wavelength filter to reject the non-PAR spectra to minimize heat generation within the plant growth chamber. The PAR spectra are transmitted to the plant growth chamber where the light is uniformly distributed over the plant growth area at optimum intensities.

Key features of the proposed system are: (1) the PAR can be transmitted via a flexible optical fiber cable to plants away from the light source; (2) only the PAR will be transmitted to the plant, minimizing the thermal loading in the plant growth chamber, while the non-PAR spectra can be converted to electricity by means of low band-gap PV cells; (3) the low profile light diffuser makes more volume available for plant growth; and (4) the electric light source can be chosen for the best system efficiency and can be placed at the location best suited for thermal control.

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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 May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_6336
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id bb633a49-b409-42bd-bdef-75eb1bc6cb54
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2009-02-01
Homepage URL
Data Last Modified 2018-07-20
Program Code 026:027
Source Datajson Identifier True
Source Hash 593f1f352543f61d455cf906597ea07c2cf503bb
Source Schema Version 1.1

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