Aerospace & Aviation

Highly underexpanded free jet boundary contours

Explorer xvii real time pcm telemetry data processing and display test stand

Solar energy thermionic converter design

Thermodynamic properties of neon

Ion exchange processes in upper atmosphere

Intensity profile of high-energy proton scattering in graphite, lead, copper, and aluminum

Theories of anisotropic plates and shells

Anisotropic cylindrical shells

Traveling wave tube in reentrant mode for frequency conversion & amplification serrodyne system

Hydromagnetic stability of velocity discontinuity between two inviscid, compressible fluids

Dynamic morphology of aurora polaris

Noise performance of traveling wave masers

Mariner ii spacecraft microwave radiometer experiment & venus space probe

Sensory stimulation & conditioned response

This paper reviews the basic features of the Brayton cycle and discusses the selection of such cycle parameters as working fluid, pressure, and temperature. System performance, weight, and reliability characteristics are then considered in order to determine the suitability of this type of system for the intended space applications. It is shown that the Brayton cycle can be considered suitable for low-power solar and intermediate-power nuclear applications where low specific weight is not a critical requirement. To achieve the low specific weights required for electrical propulsion missions, turbine-inlet temperatures in the 3000 R region at power levels in the 500–1000 kw range appear to be necessary.