Results 181 to 190 of about 7,916 (223)
Some of the next articles are maybe not open access.
Sorption isotherms, GAB parameters and isosteric heat of sorption
Journal of the Science of Food and Agriculture, 2005AbstractThe diffusion–sorption drying model has been developed as a physics‐based way to model the decreasing drying rate at low moisture contents. This new model is founded on the existence of different classes of water: free and bound water. The transition between these classes and the corresponding thermodynamics form distinct components of the ...
Quirijns, E.J. +3 more
openaire +2 more sources
Desorption isotherms and isosteric heat of anaerobic fermentation residues
Chinese Journal of Chemical Engineering, 2019Abstract This paper presents the equilibrium desorption isotherms and the isosteric heat of sorption of a mixture containing mechanically dewatered fermentation residue (obtained from a blend of chicken, swine and cattle manure) used in biogas plants and corn spoiled silage in a ratio of 2:1.
Tibor Poós, Viktor Szabó
openaire +1 more source
Equilibrium isotherms and isosteric heats of morel (Morchella esculenta)
Journal of Food Engineering, 2002Abstract Moisture desorption isotherms of Morchella esculenta mushrooms were determined at 5, 15, 25 and 35 °C and within the range of 0.11–0.92 water activity using a standardized conductivity hygrometer. Five models were considered to describe isotherms (GAB, Oswin modified, Henderson modified, Halsey modified and Ratti) being fitted to the ...
A Mulet +3 more
openaire +1 more source
Net isosteric heat of sorption in dried fruits
Journal of Food Engineering, 1991Abstract In this work, the net isosteric heats of sorption (q st,n ) of five dried fruits (sultana raisins, currants, figs, prunes and apricots) were determined for adsorption and desorption, using the relevant thermodynamic relation, (i.e. Clausius-Clapeyron equation) in the temperature range 15–60°C, based on experimental sorption data. From the
openaire +1 more source
Isosteric Heat of Potential Confinement in the Hydrogen Storage Material
Nano, 2015In the hydrogen storage problem, if an attractive potential well is formed inside the void space of porous materials, the storage gas density is expected to increase significantly compared to the H2 gas density outside the material. Actually, the overall H2 density inside the material is enhanced basically by a Boltzmann factor of exp[[Formula: see ...
Jaehyun Bae +6 more
openaire +1 more source
Lattice spacing and isosteric heat of argon monolayers below 50K
Surface Science Letters, 1980Abstract The lattice constants of 2D solid Ar adsorbed on graphite are reported for many combinations of T and vapor pressure P, where ...
Christopher G. Shaw, S.C. Fain
openaire +1 more source
Lattice gas with multiple interactions: isosteric heat and thermal desorption
Surface Science, 1992Abstract Using the transfer matrix method we calculate the isosteric heat and thermal desorption kinetics for particles adsorbed on a triangular lattice with repulsive nearest neighbor, attractive and repulsive next-nearest neighbor and trio interactions. As an example we study the adsorption of CO on a Ru(0001) surface.
S.H. Payne, Jun Zhang, H.J. Kreuzer
openaire +1 more source
Isosteric heats of adsorption for nitrogen adsorbed on microporous silica
Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 1971Nitrogen adsorption isotherms at three different but similar temperatures were determined on samples of microporous silicas prepared by a freeze–thaw technique. A maximum in the plot of the isosteric heat of adsorption against coverage was observed on all the samples investigated.
D. Dollimore, T. Shingles
openaire +1 more source
Derivation of isosteric heat of adsorption for non-ideal gases
International Journal of Heat and Mass Transfer, 2015Abstract This paper presented a theoretical framework for precise determination of the isosteric heat of adsorption for non-ideal gases. The derived equation had been applied for various adsorbent–refrigerant pairs. Highly porous activated carbon powder, namely Maxsorb III and activated carbon fiber of type (A-20) were used as adsorbents with HFC ...
Ahmed A. Askalany, Bidyut B. Saha
openaire +1 more source
Isosteric heat of sorption of dihydrogen on alumina-supported palladium
Journal of the Chemical Society, Faraday Transactions, 1995Pd/Al2O3 samples of different palladium loadings were prepared by an incipient wetness technique. The palladium dispersion (D) of each sample was estimated from its isotherm of hydrogen uptake measured volumetrically at 298 K. The isosteric heat of hydrogen sorption (q, including absorption and adsorption) on palladium was determined from a series of ...
Shu-Chin Chou +2 more
openaire +1 more source