Now showing items 1-3 of 3

  • A cryogenic Couette viscometer for the measurement of dissipation and heat transfer during solidification 

    Leachman, Jacob; Pfotenhauer, J. M.; Nellis, G. F.; Steiner, T. J. (Transactions of the Cryogenic Engineering Conference–CEC: Advances in Cryogenic Engineering, 2010)
    Viscous dissipation and the convection heat transfer coefficient are two key flow parameters that control the operation of twin‐screw solidifying extruders. This type of extruder is used to produce hydrogenic pellets that ...
  • Dynamic Shear Stress and Heat Transfer of Solid Hydrogen, Deuterium, and Neon 

    Leachman, Jacob; Pfotenhauer, J. M.; Nellis, G. F. (Journal of Applied Physics, 2012)
    Solidifying and solid cryogens in steady shear are of fundamental importance to the fueling of fusion energy reactors. We present steady-state measurements of the dynamic shear stress, thermal-conductivity, and heat transfer ...
  • Thermophysical property modeling of a hydrogenic pellet production system 

    Leachman, Jacob; Pfotenhauer, J. M.; Nellis, G. F. (Transactions of the Cryogenic Engineering Conference–CEC: Advances in Cryogenic Engineering, 2010)
    Solid hydrogenic pellets are used as fuel for fusion energy machines like the ITER device. This paper discusses the numerical modeling of a Pellet Production System (PPS) that is used to generate these pellets. The PPS ...