Modeling of the effective thermal conductivity and diffusivity of a packed bed with stagnant fluid

Structure, voidage and effective thermal

Structure, voidage and effective thermal conductivity of solids within near-wall region of beds packed with spherical pellets in tubes

✍ B. Legawiec; D. Ziólkowski 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 692 KB

The structure of the near-wail region of the beds packed with spherical pellets in tubes has been investigated experimentally at various ratios of the tube-to-pellet radii. it has been found that more than 98% of all the pellets, which are immersed within the wall-adjacent bed layer with the thickne

Effective diffusion coefficients for flu

Effective diffusion coefficients for fluid species reacting with first order kinetics in packed bed reactors and discussion on evaluation of catalyst effectiveness factors

✍ N. Wakao; S. Kaguei; H. Nagai 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 404 KB

The fluld effective dlffuslon coefficients under first-order-reactton condltlon were calculated at zero flow rates and shown m chart as a function of flmd and mtrapartlcle dlffuslvltles and Thlele modulus Theoretical backeround was elven to the assumntton of concentnc mtraparticle concentration empl

A method of finding simultaneously the v

A method of finding simultaneously the values of the heat transfer coefficient, the dispersion coefficient, and the thermal conductivity of the packing in a packed bed of spheres: Part 1, mathematical analysiss

📂 Article 📅 1968 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 103 KB 👁 3 views

A method of finding simultaneously the v

A method of finding simultaneously the values of the heat transfer coefficient, the dispersion coefficient, and the thermal conductivity of the packing in a packed bed of spheres: Part I. Mathematical analysis

✍ G. A. Turner 📂 Article 📅 1967 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 523 KB

Do the effective heat conductivity and t

Do the effective heat conductivity and the heat transfer coefficient at the wall inside a packed bed depend on a chemical reaction? Weaknesses and applicability of current models

✍ R.J. Wijngaarden; K.R. Westerterp 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 854 KB

Extension of the pore diffusion approach

Extension of the pore diffusion approach for modelling binary adsorption of lead and arsenic ions in a fixed-bed column packed with atlantic cod fish scales

✍ A. Basu; M. S. Rahaman; M. R. Islam 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 187 KB