Study to establish criteria for a solar cell array for use as a primary power source for a lunar-based water electrolysis system Monthly progress report, 1 Jul. - 31 Aug. 1967

Preliminary investigations on large solar cell arrays for lunar-based water electrolysi

Large Solar Arrays -The Emerging Space Power Workhorse

The solar array/secondary battery system has emerged as the space power workhorse . Previously considered only for applications of up to 1 KW e , arrays of up to 3 KWe have been flown. Even larger arrays (10 KWe ) are being developed for Apollo Telescope Mount (ATM) and the wet Orbital Workshop. An Earth Orbiting Space Laboratory (EOSL) , in the planning state for a 1973- 1975 flight readiness date, is considering the use of a 38 KWe solar array system. A 50 KW e array is under development for an electric propulsion mission and a 45 KWe array is in the conceptual design phase for a lunar surface application. Finally, a study has been initiated to assess the practicability and cost effectiveness of utilizing a 1 MWe array for earth orbital applications. An intense technology development program has been underway for several years. The emphasis has been on solving problems that relate directly toward utilization of large solar arrays. These have included light weight structures, improved power distribution and cost reduction techniques. This paper discusses the various approaches being taken by both government and industry to resolve these problems

Study to establish criteria for a solar cell array for use as a primary power source for a lunar-based water electrolysis system, phase 3 Final technical report, 15 Nov. 1969 - 15 Dec. 1970

Environmental testing of silicon cell spalling and experimental confirmation of mathematical mode

Study to establish criteria for a solar cell array for use as a primary power source for a lunar-based water electrolysis system, phase 1 Final technical report, 1 Jul. 1967 - 30 Jun. 1968

Parametric performance and design criteria for assessing feasibility of large solar array and fuel cell systems as primary power source for lunar-based water electrolysis syste

Study to establish criteria for a solar cell array for use as a primary power source for a lunar-based water electrolysis system, phase 4

Establishing solar cell array criteria for use as primary power source in lunar-based water electrolysis syste

A study on various methods of supplying propellant to an orbit insertion rocket engine

Various types of pumps and pump drives were evaluated to determine the lightest weight system for supplying propellants to a planetary orbit insertion rocket engine. From these analyses four candidate propellant feed systems were identified. Systems Nos. 1 and 2 were both battery powered (lithium-thionyl-chloride or silver-zinc) motor driven pumps. System 3 was a monopropellant gas generator powered turbopump. System 4 was a bipropellant gas generator powered turbopump. Parameters considered were pump break horsepower, weight, reliability, transient response and system stability. Figures of merit were established and the ranking of the candidate systems was determined. Conceptual designs were prepared for typical motor driven pumps and turbopump configurations for a 1000 lbf thrust rocket engine

Large Solar Arrays -The Emerging Space Power Workhorse

This Article will be published in Vol. II No other information or file available for this session