A5058819911- Aerogels and thermal insulation
- Magnetic Properties of Alloys
- Surface Modification and Superhydrophobicity
- Metallurgical and Alloy Processes
- Gas Dynamics and Kinetic Theory
- Magnetic and transport properties of perovskites and related materials
- Rare-earth and actinide compounds
- Spectroscopy and Laser Applications
- Advanced Thermodynamics and Statistical Mechanics
- Phase Equilibria and Thermodynamics
- Gas Sensing Nanomaterials and Sensors
- Magnetic properties of thin films
- Numerical methods in inverse problems
- Radiative Heat Transfer Studies
- Powder Metallurgy Techniques and Materials
- Advanced Sensor and Energy Harvesting Materials
Lawrence Berkeley National Laboratory
1994-1995
University of California, Berkeley
1994-1995
In this paper, three periodic structures are used to derive the apparent conductivity of a porous medium and specific application is made aerogel. The characteristics structure determined using results for porosity surface area obtained from nitrogen adsorption-desorption measurement. 10 refs., 2 figs., tabs.
Technical Briefs Mean Free Path and Apparent Thermal Conductivity of a Gas in Porous Medium S. Q. Zeng, Zeng Lawrence Berkeley Laboratory, University California Berkeley, CA 94720; Department Mechanical Engineering, California, 94720 Search for other works by this author on: This Site PubMed Google Scholar A. Hunt, Hunt R. Greif Author Article Information J. Heat Transfer. Aug 1995, 117(3): 758-761 (4 pages) https://doi.org/10.1115/1.2822642 Published Online: August 1, 1995 history Received:...
Silica aerogel is a network of short bonded chains silica particles, which are fused together. Particles diameters 2-5 nm and pores diameter 10-100 produce solid-gas matrix in the volume fraction solid can be less than 5 percent. The small pore size effectively limits motion gas molecules hence reduces apparent conductivity to very low level. In this paper, we establish model for determination terms sizes. We use method adsorption-desorption determine distribution aerogel. thermal measured...
Technical Briefs Approximate Formulation for Coupled Conduction and Radiation Through a Medium With Arbitrary Optical Thickness S. Q. Zeng, Zeng Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720; Department Mechanical Engineering, California at 94720 Search other works by this author on: This Site PubMed Google Scholar A. J. Hunt, Hunt R. Grief, Grief W. Cao Author Article Information Heat Transfer. Aug 1995, 117(3): 797-799 (3 pages)...