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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 847 records · Page 47
All sourcesNASA NTRSDOE OSTI
NASA NTRS1967

Propellant from spent tankage

Mission performance gains from using spent booster tankage as propellant source for electric propulsion spacecraft

SPACECRAFT PROPULSION↗
NASA NTRS1973

Effect of environment on insulation materials, volume 1

Twenty candidate multilayer insulation and insulation related materials were subjected to eight conditions that represent possible operational environments. These exposures include ground contaminants, various operational temperatures, space vacuum, space-vented propellants, and tank leakage. The objective of this program was to obtain and evaluate the data from these exposures to provide both a quantitative and qualitative description of the degradation to certain physical and thermal properties, and from this, to obtain a better understanding of the environmental effects on the insulation performance.

Parmley, R. T.↗
NASA NTRS1976

Space Shuttle Program - An overview

The Space Shuttle's unique design features include multiple re-uses of its major elements, large cargo carrying capacity, and the capability of deploying, servicing, and retrieving a variety of payloads. These design features, i.e., reusability and cargo flexibility, were incorporated to satisfy the objective of providing a transportation system which will lower the cost of delivering a variety of payloads to the earth orbit. The Space Shuttle System consists of a reusable manned Orbiter containing three main engines, two reusable Solid Rocket Boosters, and an expendable External Tank containing propellant for the Orbiter main engines. On a typical Space Shuttle mission, the Orbiter will remain in orbit for up to 7 days conducting on-orbit observations and operations, return to earth with personnel and payload, land horizontally on a runway, and be readied for another flight in as few as 14 days. Another mission class includes deploying, servicing, and recovering satellites.

Kloves, T. R.↗
NASA NTRS1981

Slosh dynamics of a spin-stabilized spacecraft comprising off-axis tanks filled partially with liquid propellant

The fundamental nonlinear equations of motion were derived and the specialized to a steady-state rotation of the vehicle about a given axis of rotation. A thrust about the spin axis was introduced. A perturbation solution was derived which linearizes the problem. The effect of the centrifugal and coriolis accelerations together with vorticity are implicitly taken into consideration in the formulation. A variational formulation of the associated boundary conditions is presented. For practical cases it is shown that the simple classical pendulum representation for slosh is not very appealing for a spinning spacecraft unless severe restrictions are allowed.

Fontenot, L. L.↗
NASA NTRS1984

Cryogenic Fluid Management Facility

The Cryogenic Fluid Management Facility (CFMF) is a reusable test bed which is designed to be carried into space in the Shuttle cargo bay to investigate systems and technologies required to efficiently and effectively manage cryogens in space. The facility hardware is configured to provide low-g verification of fluid and thermal models of cryogenic storage, transfer concepts and processes. Significant design data and criteria for future subcritical cryogenic storage and transfer systems will be obtained. Future applications include space-based and ground-based orbit transfer vehicles (OTV), space station life support, attitude control, power and fuel depot supply, resupply tankers, external tank (ET) propellant scavenging, space-based weapon systems and space-based orbit maneuvering vehicles (OMV). This paper describes the facility and discusses the cryogenic fluid management technology to be investigated. A brief discussion of the integration issues involved in loading and transporting liquid hydrogen within the Shuttle cargo bay is also included.

Eberhardt, R. N.↗