山口大学工学部研究報告第62巻第1号目次


  1. Correlation of Vapor-Liquid Equilibria Using Wilson Equation with Parameters Estimated from Solubility Parameters and Molar Volumes
    小渕茂寿
    要旨】【本文(PDF)

  2. 拡張正則溶液モデルとWilson式による気液平衡の相関
    小渕茂寿
    要旨】【本文(PDF)

  3. 多径間多主桁鋼鈑桁橋における塩分環境調査
    麻生稔彦
    要旨】【本文(PDF)


要旨一覧

  
Correlation of Vapor-Liquid Equilibria Using Wilson Equation with Parameters Estimated from Solubility Parameters and Molar Volumes
小渕茂寿
要旨
Wilson parameters were estimated from solubility parameters and molar volumes. Namely, the interaction parameters due to attractive forces were evaluated from the solubility parameters and molar volumes predicted by the group contribution method of Fedors. The vapor-liquid equilibria (VLE) of several binary systems (hydrocarbon binary mixtures, binary systems containing ethers, binary systems containing ketones, ethanol + hydrocarbon systems and water + polar molecule systems) were correlated by use of these Wilson parameters, in which the interaction parameters between unlike molecules were adopted. The interaction parameters were determined by using VLE data and the correlation of the parameters obtained was attempted with the pure component properties such as solubility parameters and normal boiling points.
本文(PDF)
拡張正則溶液モデルとWilson式による気液平衡の相関
小渕茂寿
要旨
Applicabilities for vapor-liquid equilibrium correlation of three kinds of solution models (RSM-α, RSM-L and GC-W) have been examined by using VLE data of several binary mixtures containing non-polar and polar molecules. It is found that GC-W can give the best result. To use GC-W as a prediction method, the interaction parameters should be estimated from the physical properties of pure components. Based on the various attempts, tb and δ252 are found to be successful to estimate the interaction parameters though applicable binary mixtures are somewhat limitted.
本文(PDF)
多径間多主桁鋼鈑桁橋における塩分環境調査
麻生稔彦
要旨
Weathering steel has an anticorrosive function by creating protective rust on the surface of steel. This function would be able to provide the possibility reducing life time cost of a steel bridge. However, anticorrosive function is strongly affected by corrosion environment, which is amount of salts, temperature, humidity and wind condition surrounding the bridge. This paper reports the results of observation of corrosion environment on multi-girder multi-span weathering steel bridge. From the observation, a relationship between airborne salts contents and salt contents which is attached to the surface of girders was become clear.
本文(PDF)


研究報告の頁へ
libe@donald.lib-e.yamaguchi-u.ac.jp