A hydrogen electrode for batteries or galvanic cells in which a first section of the electrode has relatively large pores and serves for the transport of hydrogen and a second section with relatively small pores containing Raney-nickel catalyst. According to the invention, the electrode consists of...
Bi-porous wickEffective thermal conductivitySintering parametersPorosityPermeabilityThe thermal performances of a bi-porous nickel wicks in Loop Heat Pipe (LHP) including porosity, permeability, capillary pumping head and effective thermal conductivity (ETC) have been examined theoretically and experimentally,...
Moreover, the loop heat pipe with biporous Ti3AlC2 wick operates reliably under the heat load of 25 W compared with that employing monoporous Ti3AlC2 wick. Biporous Ti3AlC2 wicks proved to be possible alternatives to metals and conventional ceramics for applications in LHP wicks. Highlights ...
In the past researchers noted three distinct stages of evaporative heat transfer in a bi-porous wick. The maximum heat transfer rate is postulated to occur at the end of the second stage when the maximum number of small pores interfaces the vapor space. For optimization purposes a reliable mode...
Jianlin Chen,Shu Bai,Yan Sun.Rapid Purification of Molecular Chaperonins by Flowthrough Chromatography with Customized Biporous Anion-Exchanger[J]. Chromatographia .2003(11-12)Jianlin Chen,Shu Bai,Yan Sun. Rapid Purification of Molecular Chaperonins by Flowthrough Chromatography with Customized Bi...
The kinetics of adsorption by biporous sorbents with an osmotic-adsorption-theory isothermWe have obtained approximation analytical expressions covering the movement of the adsorption-wave front, and the distribution of the adsorbate, within the cylindrical sorbent grain with impermeable side walls, for ...
Sorption in a sorbent of biporous structure is considered in the case of a limiting convex-rectangular— isotherm. An accurate integral equation for the sorption wave front is obtained. Asymptotic laws of front motion are found for small and large times.DOI: 10.1007/BF00861927 年份: ...
Dong Hyun Kim,Anderson A.Time-domain solutions of unsteady-state mass transfer models for biporous catalyst in a continuous-flow gradientless reactor. Enviom.Sci.Technol . 1994Kim, D. H. and Chang, K. S. (1994) Time- domain solutions of unsteady-state mass transfer models for biporous ...
Adsorption Kinetics of Toluene on Soil Agglomerates: Soil as a Biporous Sorbent Single-component vapor diffusion at low pressure into dry soil agglomerates provides a well-characterized system for investigating adsorption and diffusion... MA Arocha,AP Jackman,BJ Mccoy - 《Environmental Science & ...
A theory of kinetics of physical adsorption by adsorbents of biporous structure has been developed. With the aid of the statistical-moments method, analytic relationships have been obtained which enable one to calculate the diffusion coefficients separately for adsorbing and transport pores. With the ...