Accession Number : ADA017502

Title :   Lubricant Reservoir Systems: Thermal Considerations.

Descriptive Note : Interim rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF CHEMISTRY AND PHYSICS LAB

Personal Author(s) : Dormant,Leon M. ; Feuerstein,Seymour

Report Date : 09 OCT 1975

Pagination or Media Count : 18

Abstract : The thermal conditions necessary to ensure that porous nylon lubricant reservoirs properly function as lubricant replenishment sources are derived by thermodynamic methodology. The porous nylon must be warmer than its surroundings by at least an amount delta T, which may be expressed by the relation delta T=-2 gamma V T sub B rH where T sub B is the system temperature, r is the nylon pore radius, and gamma, V, and H are the surface tension, the molar volume, and the molar heat of vaporization of the liquid lubricant, respectively.

Descriptors :   *Oil reservoirs, *Lubricants, *Reservoirs, *Bearings, Thermodynamics, Lubrication, Replenishment, Nylon, Capillarity, Transport properties, Temperature control, Gradients, Heat, Methodology, Porous materials, Surface properties, Surface temperature, Interfacial tension, Heat of vaporization, Spacecraft, Spaceborne, Feeding, Surfaces, Pressure, Mechanical components, LaPlace transformation, Temperature

Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE