energy analyses and drying kinetics of chamomile leaves in

Basic Principles and Calculations in Chemical Engineering

fields ( mass transfer heat transfer chemical kinetics etc ) will be given in Applied Mathematics in Chemical Engineering within 3rd year of study Chapter 7 A general Strategy for Solving Material Balance Problems The strategy outlined below is designed to focus your attention on the main path rather than the detours: 1

Studies on Kinetics of Moisture Removal from Spinach Leaves

Drying kinetics of untreated spinach leaves were analyzed mathematically at the dehydration temperature of 50C 60C 70C and 80C in a convective type dryer The results reflected that the increase in air temperature significantly reduced the drying time of spinach leaves

Drying Technology: Vol 38 No 11

Aug 05 2020Comparative evaluation of drying methods on kinetics biocompounds and antioxidant activity of Bacillus subtilis-fermented dehulled adlay Anyan Wen Chunzhi Xie Muhammad Mazhar Yong Zhu Haiying Zeng Likang Qin Yi Zhu Pages: 1505-1515 Published online: 11 Oct 2019

Artificial Neural Network Modeling of Drying Kinetics and

Ginkgo biloba seeds were dried in microwave drier under different microwave powers (200 280 460 and 640 W) to determinate the drying kinetics and color changes during drying process Drying curves of all samples showed a long constant rate period and falling rate period along with a short heating period The effective moisture diffusivities were found to be 3 318

Analysis on Photovoltaic Energy

A photovoltaic energy-assisted industrial dryer has been analyzed The dryer has been tested in various weather and working conditions with 3 kg of green peas from 75 6% initial moisture content to 20% final moisture content (w b ) The effect of various drying air temperatures at three levels (40 50 and 60C) and two distinct air velocities (3#x2009 m/s and 4#x2009 m/s)

Thin Layer Drying of Bay Leaves ( Laurus nobilis L ) in

Dried leaves were grinded prior to measurement in a laboratory type blender (Waring Inc USA) The colour of fresh and dried leaves according to CIE colour space (L* a* b*) was measured using a Minolta Chroma Meter CR-400 (Konica Minolta Sensing Inc Japan) The effect of drying condition on colour was calculated

Drying Kinetics of Rice Straw under Isothermal and

A thermogravimetric approach was applied to study the drying of powdered rice straw particles to determine the drying kinetics under isothermal and nonisothermal drying conditions The isothermal drying experiments were performed at 50 60 70 and 80 C and the nonisothermal drying experiments were performed at a heating rate of 10 C/min from 30 to 140 C The


proved to be useful for design and analysis of heat and mass transfer during drying processes Meisami-asi et al [14] experimentally investigated the moisture content of thin layer drying kinetics of apple slices in a convective dryer and the mathematical modelling was performed

Hybrid Drying of Murraya koenigii Leaves: Energy

This study aims to reduce the amount of specific energy consumed during the drying of fresh Murraya koenigii leaves by comparing four drying methods: (1) convective hot-air drying (CD 40 50 and 60 deg C) (2) single-stage microwave-vacuum drying (MVD 6 9 and 12 W/g) (3) two-stage convective hot-air pre-drying followed by microwave-vacuum finishingndash drying

Comparative Study of Performance of Indirect Mode with

energy efficiency and exergy efficiency varies from 7 18 to 37 93% and 55 35 to 79 39% respectively and also found kinetic model of Midilli et al for their experimental data Shalaby et al [6] experimentally investigated the thermal energy storage medium on drying kinetics

Modeling drying kinetics of fever leaves (Ocimum viride

Modeling drying kinetics of fever leaves (Ocimum viride) in a convective hot air dryer Sobukola O P 1 * and Dairo O U 2 1D ep a rtm n ofF dS ciT h lgy U v s A u P M B 2240 Abeokuta Nigeria 2D ep a rtm n of Ag ic ulE U v s y P M B 2240 Abeokuta Nigeria *Address for Correspondence:Email: Author: olajidephilipyahoo

Artificial Neural Network Modeling of Drying Kinetics and

Ginkgo biloba seeds were dried in microwave drier under different microwave powers (200 280 460 and 640 W) to determinate the drying kinetics and color changes during drying process Drying curves of all samples showed a long constant rate period and falling rate period along with a short heating period The effective moisture diffusivities were found to be 3 318

ISSN: 2321et al 3471(Online) Study of effect of drying on

Effect of drying on the color of tarragon (Artemisia dracunculus L ) leaves J Bioprocess technol 4 2011 1281-1287 Arsalan D and Ozcan M Evaluation of drying methods with respect to drying kinetics mineral content and colour characteristics of rosemary leaves Energy convers manage 5 2008 1258-1264

Chlorophyll a Fluorescence Imaging Analysis in Air

In air-drying stressed leaves all measured fluorescence parameters were declined to over halves comparing control seedling 3 3 Effective Quantum Yield of Photochemical Energy Conversion (ΦPS II) In air-drying stressed sorghum leaves the ΦPS II has decreased from 0 52 to 0 36 at 24 HAT

Volume 15 Issue 3 :: Article Issues :: BioResources

Jackfruit leaves have been revealed to possess many medicinal values such as antioxidant and anti-inflammatory properties In this study different drying treatments (shade (SD) sun (SN) and oven (OV)) and ethanol/water ratios (E/W) were investigated to evaluate the impact on drying kinetics color and antioxidant properties of jackfruit leaves

Thermal modeling and experimental validation of solar

Energy analysis of solar drying system is based on the first law of thermodynamics and it never shows the quality of energy destruction The analysis based on the second law of thermodynamics is in the position to measure the ability of several types of energies to do work and is known as exergy analysis Hence energy can be defined as the


Analysis We take a single ball as the system The energy balance for this closed system can be expressed as EE E QU muu QmCTT in out out ball out −= −= = − =− Net energy transfer by heat work and mass system Change in internal kinetic potential etc energies 12434 12434 Δ Δ () 21 12 Brass balls 120C Water bath 5C The total

Recent developments in drying of food products

Figiel Adam 2010 Drying kinetics and quality of beetroots dehydrated by combination of convective and vacuum-microwave methods Journal of Food Engineering 98 461-470 Akpinar E K 2010 Drying of mint leaves in a solar dryer and under open sun: Modelling performance analyses Energy Conversion and Management 51 2407-2418 Crossref Google Scholar

Studying the Effect of Different Drying Bed on Drying

Drying of mint leaves guarantees a longer shelf time while preserving its quality for use in pharmaceutical and food industries In this study the drying behavior of Mint leaves in a fluidized bed dryer (FBD) under different drying conditions (fixed semi-fluidized and fluidized) and 4 temperature levels (30 40 50 and 60 C) was investigated

In vitro rumen fermentation kinetics and nutritional

In vitro rumen fermentation kinetics and nutritional evaluation of olive tree (Olea europaea L ) pruning residues as affected by cutting regimen M R Al-Masri Department of Agriculture A E C S P O Box 6091 Damascus Syria ascientificaec sy Abstract Nutritive values of the branches (stems with leaves) from Olea europaea trees cut at 25 50 75 or 100 cm distance from the tip

Energy analyses and drying kinetics of chamomile leaves

FULL LENGTH ARTICLE Energy analyses and drying kinetics of chamomile leaves in microwave-convective dryer Ali Motevali a Saeid Minaei a * Ahmad Banakar a Barat Ghobadian a Hosain Darvishi b a Department of Biosystems Engineering Faculty of Agriculture Tarbiat Modares University Tehran Iran b Department of Biosystems Engineering Faculty of

Estimation of Degradability Kinetics Energy and Organic

Energy and microbial protein estimation: The energy values of dry and silage of date palm leaves were calculated from the amount of gas produced at 24 h of incubation with supplementary analysis of crude protein ash crud fibre and ether extract (Menke et al 1979 Menke and Steingass 1988)

Effect of air temperature on drying kinetics colour

The objective of the present study was to determine the influence of air temperature on the drying kinetics of sage leaves at temperatures of 45 50 55 60 and 65 C in a cabinet dryer The drying time was significantly affected by temperature

Influence of microwave drying on the combustion

Analysis of the combustion kinetics of food waste using the Coats–Redfern equation revealed that microwave drying changed the combustion kinetics of food waste That is to say the combustion rate of the food waste was accelerated by reducing the activation energy at low temperatures and increasing the activation energy at high temperatures

Analysis of Sugarcane Bagasse Cellulose Content of

Ash melting also known as ash fusion and ash softening can lead to slagging fouling and corrosion in boilers which may reduce conversion efficiency We can determine the ash melting behaviour of Sugarcane Bagasse using our Carbolite CAF G5 BIO ash melting furnace It can record the following temperatures: Ash Shrinkage Starting Temperature (SST) - This occurs

Kinetics and mathematical modeling of thin layer drying of

In order to introduce a new drying model and diffusion equation of mint leaves as a pharmaceutical plant for the first time a solar dryer including hot water recirculating between a tank around the solar plate collector and a drying chamber was used to minimize the waste energy during the drying process and dry the leaves efficiently

Drying characteristics and solar convective drying

This experimental study aims to investigate the influence of solar drying parameters on water loss of fresh Hami melon flakes This article presented the experiment results of drying kinetics In this study drying kinetics was conducted on a solar convective dryer with heat pump at four air temperatures (i e 40 C 50 C 60 C and 70 C) flow rates (i e 1 2 3 and 4 m/s) and

Performance Evaluation and Drying Kinetics for Solar

Mar 26 2020The drying curve for change in mass shows complete drying time for coriander and fenugreek reduced by 3 5 and 2 5 h respectively for present sample sizes The most suitable mathematical model was also regressed using matlab followed by the development of a neural network for more precise prediction of moisture ratio (MR) for present hybrid

Drying Kinetics Quality Assessment and Economic Analysis

The developed system is used for bitter gourd flakes drying under three different air mass flow rates (0 0275 0 0551 and 0826 kg/s) Moisture content of bitter gourd flakes was decreased effectively from 96 8% to 12 2% in 17 h with optimum air mass flow rate 0 0551 kg/s whereas open sun drying has taken 26 h to reach 20 7% moisture content

The impact of solar convective drying on kinetics

An activation energy was found to be 37 81 kJ/mol Additionally effective moisture diffusivity increases with the increase in drying air temperature and air flow The experimental results demonstrated the technical feasibility for the solar drying of stevia However drying process affected quality characteristics of stevia leaves