The Heat Pipe

Thermal hydraulic design features for the BNCT application. Final report

“…As expected, the smaller the Reynolds number, the smaller the pressure head loss. The qualitative behavior of the overall pressure distribution along the heat pipe is quite close to results presented by Tien and Rohani (1974) and Winter and Barsch (1971). Figure 7 demonstrates the variations for the mean vapor temperature along the longitudinal direction at different injection Reynolds numbers.…”

“…A comprehensive review of the physical phenomena and applications of heat pipes is given by Tien (1975), Winter and Barsch (1971). Tien and Rohani (1974) also presented the numerical results displaying vapor pressure distributions and heat pipe performance for axisymmetrical heat pipes, and general trends for pressure drop in the evaporator section and pressure recovery in the condenser section.…”

Scenarios constructed for nominal flow in the presence of a repository at Yucca Mountain and vicinity

“…The final branch on the "Hot Repository" limb, Path a, considers the development of sustained heat pipes. The "heat pipe" in the repository is a natural analog to an engineered heat transfer device in which the working fluid functions in both liquid and vapor phases (Winter and Barsch, 1971). The engineered version of this device efficiently transfers energy by vaporizing a working fluid at one end cf a closed cylinder and condensing it at the other, recovering the latent heat of vaporization on condensation.…”

On the minimal topology in the class of topological vector groups onR1

“…the type of wick and working fluid employed, and'environmental factors such as its orientation with respect to the gravitational field. These place limits on the heat pipe's performance (Winter and Barsch 1971) and hence define an operating region outside of which failure will occur. Failure usually manifests itself as burn-out of the evaporator section with, in some cases, catastrophic results.…”