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photovoltaic array for martian surface powerMissions to Mars will require electric power. A leading candidate for providing power is solar power produced by photovoltaic arrays. To design such a power system, detailed information on solar-radiation availability on the Martian surface is necessary. The variation of the solar radiation on the Martian surface is governed by three factors: (1) variation in Mars-Sun distance; (2) variation in solar zenith angle due to Martian season and time of day; and (3) dust in the Martian atmosphere. A major concern is the dust storms, which occur on both local and global scales. However, there is still appreciable diffuse sunlight available even at high opacity, so that solar array operation is still possible. Typical results for tracking solar collectors are also shown and compared to the fixed collectors. During the Northern Hemisphere spring and summer the isolation is relatively high, 2-5 kW-hr/sq m-day, due to the low optical depth of the Martian atmosphere. These seasons, totalling a full terrestrial year, are the likely ones during which manned mission will be carried out.
Document ID
19920024655
Document Type
Conference Paper
Authors
Appelbaum, J.
(Tel-Aviv Univ. OH., United States)
Landis, G. A.
(Sverdrup Technology, Inc., Brook Park)
Date Acquired
September 6, 2013
Publication Date
August 1, 1992
Subject Category
SOLAR PHYSICS
Report/Patent Number
NAS 1.15:105827
NASA-TM-105827
E-7262
Meeting Information
Congress of the International Astronautical Federation(Washington, DC)
Funding Number(s)
CONTRACT_GRANT: NAS3-25266
CONTRACT_GRANT: NAGW-2022
PROJECT: RTOP 506-41-11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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