Results 11 to 20 of about 4,804,754 (398)

Investigation of Pear Drying Performance by Different Methods and Regression of Convective Heat Transfer Coefficient with Support Vector Machine [PDF]

, 2018
In this study, an air heated solar collector (AHSC) dryer was designed to determine the drying characteristics of the pear. Flat pear slices of 10 mm thickness were used in the experiments.
M. Das, E. Akpinar
semanticscholar   +2 more sources

Revisiting the vapor diffusion coefficient in dry snow [PDF]

, 2019
Abstract. A substantial degree of uncertainty surrounds the value of the diffusion coefficient for water vapor diffusing through snow under the influence of a temperature gradient. A collection of theoretical, numerical, and experimental studies suggest the value of the normalized diffusion coefficient of snow with respect to water vapor diffusing ...
Andrew C. Hansen
openaire   +3 more sources

Moisture Diffusion Coefficients of Solid during Drying Process

Chemical engineering, 1964
In some substances, the internal moisture movement during a drying process is effectively interpreted in terms of diffusion phenomenon. The moisture diffusion coefficients of such substances are calculated by Eq.(1), (2) or (3) according to the moisture distributions obtained through experiments under steady or unsteady state drying.The moisture ...
Kaichiro Wakabayashi
openaire   +3 more sources

ANALYTICAL CALCULATION OF THE DRY FRICTION COEFFICIENT

Bulletin of the Moscow State Regional University (Physics and Mathematics), 2021
С. О. Гладков
openaire   +3 more sources

Investigation of Heat and Mass Transfer in the Processes of Heat Treatment and Drying of Thermal Insulation Materials

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022
The results of the study of heat and mass transfer in the processes of heat treatment and drying processes of thermal insulating materials when the values of the Biot heat exchange criterion are less than one and the main factor is the interaction of the
A. I. Ol’shanskii, S. V. Zhernosek, A. M. Gusarov   +2 more
doaj   +1 more source

On the calculation of a dry friction coefficient [PDF]

PAMM, 2019
AbstractNormal contact problems of rough surfaces have already been extensively investigated. For Gaussian surfaces, the normal force Fn is often found to be proportional to the real contact area A. Following the approach of Bowden and Tabor [1] for the tangential force Ft = τA, where τ denotes the yield shear stress of the softer surface, the friction
Oestringer, Lukas J., Proppe, Carsten
openaire   +2 more sources

Poncelet coefficients for dry sand [PDF]

AIP Conference Proceedings, 2018
Penetration of sand has been analyzed in a Poncelet framework. Published data from several sources have been analyzed. Threshold velocities associated with grain fracture and transition from friction-dominated resistance to inertia-dominated resistance have been identified.
S. J. Bless, M. Omidvar, M. Iskander
openaire   +1 more source

Heat and moisture transfer kinetics and temperature during drying of fabrics

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021
The methods of approximation of the curve of the drying rate of fabrics according to the methods of A. V. Lykov and V. V. Krasnikov are described. The results of processing experimental data on convective tissue drying are presented.
A. I. Ol’shanskii, A. S. Marushchak
doaj   +1 more source

Heat and mass transfer by generalized complex variables during heat treatment and drying of thermal insulation materials

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2022
The results of processing experimental data on heat treatment in drying processes of thin thermal insulation materials are presented. As a result of processing the experimental data by generalized complex variables, formulas for determining the heat flux
A. I. Ol’shanskii, A. A. Kotow, S. M. Kuzmenkov   +2 more
doaj   +1 more source

Methods of calculating the kinetics of drying of natural leather

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023
A method for calculating drying kinetics based on A. V. Lyikov’s kinetics equation and drying rate curves for the drying process of natural leather is presented. Methods of approximating velocity curves to determine the drying time are considered.
A. I. Ol’shanskii, A. A. Kotow, S. M. Kuzmenkov   +2 more
doaj   +1 more source