Determination of the safe drying rate curve for ceramic plates

1969 ◽  
Vol 26 (6) ◽  
pp. 353-355
Author(s):  
M. S. Belopol'skii ◽  
S. N. Zotov
Keyword(s):  
Rate Curve ◽  
Drying Rate

scholarly journals Perbandingan Model Characteristic Drying Rate Curve dan Reaction Engineering Approach Berdasarkan Hasil Eksperimen Pengeringan Mango Tissues

2019 ◽  
Vol 1 (2) ◽  
pp. 69-76
Author(s):  
Johannes Martua Hutagalung
Keyword(s):  
Mean Square Error ◽  
Reaction Engineering ◽  
Rate Curve ◽  
Drying Rate ◽  
Mean Square ◽  
Engineering Approach ◽  
Constant Rate ◽  
Rate Period ◽  
Model Characteristic

Proses pengeringan dapat dimodelkan secara umum menjadi dua model matematika, model empirikal dan mekanistik. CDRC (Characteristic Drying Rate Curve) and REA (Reaction Engineering Approach) adalah salah satu model mekanistik untuk mencari kondisi fisis di semua bagian, yang tidak bisa dilakukan oleh model empirikal. Hasil yang diperoleh dengan cara simulasi menunjukkan profil temperatur dan kadar air pada jaringan mangga yang telah divalidasi berdasarkan literatur. Mean square error dan nilai variasinya menunjukkan kemiripan antara kadar air dan temperatur. Data eksperimen untuk REA menggunakan temperatur pengeringan 338K dan nilai Y pada 0,0134kg H2O/kg udara kering. CDRC dibagi menjadi dua pendekatan model, Constant Rate Period (CRP) dan Falling Rate Period (FRP) pada temperatur 338K. Penentuan energi aktivasi relatif diperoleh sebagai jumlah kadar air yang hilang, pada temperatur 328K. Hasil yang ditunjukkan model CDRC dan REA relatif sama, dimana CDRC lebih mendekati data eksperimen. Pada kurva pengeringan, kadar air jaringan mangga menurun secara eksponensial sedangkan temperatur jaringan mangga menaik secara eksponensial.

Determination of Arrhenius Parameters from a Single Rate Curve

2000 ◽  
Vol 29 (5) ◽  
pp. 520-521 ◽  
Author(s):  
Iwao Amasaki ◽  
Zhiming Gao ◽  
Masahiro Nakada
Keyword(s):  
Rate Curve ◽  
Arrhenius Parameters

Determination of the drying rate and effective diffusivity coefficients during convective drying of two-phase olive mill waste at rotary dryers drying conditions for their application

2020 ◽  
Vol 153 ◽  
pp. 900-910 ◽  
Author(s):  
Francisco J. Gómez-de la Cruz ◽  
José M. Palomar-Carnicero ◽  
Quetzalcoatl Hernández-Escobedo ◽  
Fernando Cruz-Peragón
Keyword(s):  
Effective Diffusivity ◽  
Convective Drying ◽  
Drying Rate ◽  
Two Phase ◽  
Olive Mill Waste ◽  
Drying Conditions ◽  
Mill Waste ◽  
Olive Mill

scholarly journals Description of Seedless Grape Drying and Determination of Drying Rate

2014 ◽  
Vol 2 (2) ◽  
pp. 1
Author(s):  
Wilton Pereira Da Silva ◽  
Pedro Luiz Do Nascimento ◽  
Ihsan Hamawand ◽  
Cleide Maria Diniz Pereira Da Silva e Silva ◽  
Josivanda Palmeira Gomes ◽  
...  
Keyword(s):  
Low Temperature ◽  
Moisture Content ◽  
Empirical Models ◽  
Drying Rate ◽  
Chi Square ◽  
Seedless Grape ◽  
Comparison Of The Results ◽  
Two Parameters ◽  
Statistical Indicators

This article compares some empirical models, with one or two parameters, used to describe seedless grape drying at low temperature. Chosen models have, as a common characteristic, an analytical expression for the derivative of dimensionless moisture content with respect to time. Comparison of the results for the simulations of drying kinetics indicates that, despite Page and Silva et alli models well represent the process, the best model is Peleg. For this model, the statistical indicators of the simulation can be considered excellent (the determination coefficient is R2 = 0.99944 and the chi-square is χ2 = 1.2335 x 10-3).

scholarly journals DETERMINATION OF DRYING TIME OF THE RAMMED EARTH WALLS

2018 ◽  
Vol 15 ◽  
pp. 81-87
Author(s):  
Tereza Plaček Otcovská ◽  
Barbora Mužíková ◽  
Pavel Padevět
Keyword(s):  
Building Material ◽  
Main Idea ◽  
Rammed Earth ◽  
Drying Rate ◽  
Drying Time ◽  
History Of ◽  
Rate Experiment ◽  
History Of Use ◽  
Earth Walls

The unburned earth is a building material with long history of use. Buildings made of unburned clay are all over the world. But at present, unburned earth is minority building material and its properties are not sufficiently investigated. The rammed earth is one of main kind of unburned earth. This paper is focused on drying rate of the rammed earth of known composition. The significant part of the paper is focused on principle of our own research and the main idea of our research is explained here. The second part of the paper is devoted to drying rate experiment and measured results from this experiment. Determination of drying time of universal rammed earth walls is the main result of the experiment.

scholarly journals New methodology and instrument for determination of the isothermal drying rate of cotton and polypropylene fabrics at constant air velocity

2019 ◽  
Vol 14 ◽  
pp. 155892501987348
Author(s):  
Tereza Heinisch ◽  
Vladimír Bajzík ◽  
Luboš Hes
Keyword(s):  
Current Method ◽  
Woven Fabrics ◽  
Drying Rate ◽  
Air Velocity ◽  
Reliable Measurement ◽  
Drying Time ◽  
Vapour Permeability ◽  
Related Method ◽  
Isothermal Drying

The most important parameters characterizing thermal comfort of garments are thermal resistance and water vapour permeability. Contrary to common garments, protective and sport garments (dresses) are often used in wet state (due to the absorbed sweat), which affects their comfort properties. That is why testing of both mentioned parameters in recent became important, along with the determination of the drying rate and drying time of sport dresses and underwear. However, current method of the drying rate mostly does not enable reliable measurement of this parameter, mostly due to non-isothermal conditions during the measurement and unknown velocity of the drying rate. In the article, a new method and instrument determination of the isothermal drying rate and drying time of sport dresses and underwear are presented, which is executed under at constant velocity of the parallel air flow. The reliability of the instrument and related method was verified by determination of the drying rate of selected woven fabrics.

Estimation of Binder Segregation in a Porous Slab from the Conductive Drying Rate Curve

2011 ◽  
Vol 37 (3) ◽  
pp. 229-234 ◽  
Author(s):  
Hironobu Imakoma ◽  
Keiji Tsubota ◽  
Takafumi Horie
Keyword(s):  
Rate Curve ◽  
Drying Rate
Sign in / Sign up

Export Citation Format

Share Document