Heat-transfer and flow-friction characteristics of woven-screen and crossed-rod matrices

  title={Heat-transfer and flow-friction characteristics of woven-screen and crossed-rod matrices},
  author={L. S. Tong and Alexander London},
Abstract : Woven-screen or crossed-rod types of matrices may be of interest as fuel-element geometries for certain types of nuclear reactors as well as in many other heat-transfer and mass-transfer systems. Basic heat-transfer and flow- friction design data for these geometries are presented graphically, in nondimensional form, for a range of Reynolds numbers from 5 to 100,000 and matrix porosities from 0.60 to 0.83. Algebraic equations which adequately represent these data are also given and… 

Simulations of Flow and Heat Transfer Inside Regenerators Made of Stacked Welded Screens Using Periodic Cell Structures

A micro-macro combined approach is presented for modeling the flow and thermal fields through a porous medium when the cell structure is well defined. This approach entailed modeling regenerators

Thermal/fluid characteristics of isotropic plain-weave screen laminates as heat exchange surfaces

A simple-to-fabricate woven mesh, consisting of bonded laminates of two-dimensional plain-weave conductive screens is described. Geometric equations show that these porous matrices can be fabricated

Thermal/fluid characteristics of 3-D woven mesh structures as heat exchanger surfaces

  • R. WirtzJ. XuJi-Wook ParkD. Ruch
  • Physics, Engineering
    ITherm 2002. Eighth Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (Cat. No.02CH37258)
  • 2002
The present work demonstrates the fabrication methodology of a 3-D, aluminum wire filament, bonded mesh deployed as a heat exchange surface. A model of the effective thermal conductivity of the mesh

Stirling engine nodal analysis program

A general-purpos e program for the nodal analysis of Stirling-cycl e devices or other cyclic, regenerative machines is described. It employs finite-difference, explicit-forw ard solutions and is

Development of a high performance heat sink based on screen-fin technology

  • Chen LiR. Wirtz
  • Engineering
    Ninteenth Annual IEEE Semiconductor Thermal Measurement and Management Symposium, 2003.
  • 2003
In this paper, we describe a novel high-performance heat sink based on screen-fin technology. The structural features of the heat sink are presented. The apparatus to measure both the pressure drop

Comparison of performance of heat regenerators: Relation between heat transfer efficiency and pressure drop

Heat regenerators transfer heat from one gas to another, with an intermediate storage in solids. The heat transfer surface for gas flow application should provide at the same time high surface area