Pub Date : 2023-07-18DOI: 10.1080/07373937.2023.2234473
Lalita Pal, S. Giri, D. Mohapatra, M. K. Tripathi, A. Kate
{"title":"Mass transfer parameters and quality characteristics of aonla slices under refractance window drying","authors":"Lalita Pal, S. Giri, D. Mohapatra, M. K. Tripathi, A. Kate","doi":"10.1080/07373937.2023.2234473","DOIUrl":"https://doi.org/10.1080/07373937.2023.2234473","url":null,"abstract":"","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45719920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-15DOI: 10.1080/07373937.2023.2230499
Yuchuan Wang, Zhengming Guo, Bo Wang, Jiguang Liu, Min Zhang
{"title":"Effect of high-voltage electrostatic field-assisted freeze-thaw pretreatment on the microwave freeze drying process of hawthorn","authors":"Yuchuan Wang, Zhengming Guo, Bo Wang, Jiguang Liu, Min Zhang","doi":"10.1080/07373937.2023.2230499","DOIUrl":"https://doi.org/10.1080/07373937.2023.2230499","url":null,"abstract":"","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45870837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-15DOI: 10.1080/07373937.2023.2235412
Chulin Yu, Yulin Cui, Binfeng Liu, Yu Li, Rui Wang, Chunlong He, Jun Yu Li, Qiang He
Abstract The atomization of sewage sludge is a key step in its drying process. This study conducts an industrial-scale experimental study to investigate the performance of a self-developed internal-mixing air-blast nozzle for atomizing sewage sludge. The size of atomized droplets is calculated using image processing technology. Using the specific size and characteristic size of the droplets, the droplet distribution and the droplet motion behavior in spray field are investigated at various air-to-liquid mass flow rate ratio (ALR). The larger the ALR, the smaller the atomization droplets. By installing outlet diffusers and impaction pins, the atomization angle can be increased and the distribution of droplets in the spray field can be improved. The outlet diffuser with an outlet angle of 90° and the square impaction pin exhibit optimal effect. Experiments with real scale and industrial grade have a significant reference value for industrial applications of sludge atomization.
{"title":"Industrial-scale experimental study of internal-mixing air-blast nozzle for sludge atomization","authors":"Chulin Yu, Yulin Cui, Binfeng Liu, Yu Li, Rui Wang, Chunlong He, Jun Yu Li, Qiang He","doi":"10.1080/07373937.2023.2235412","DOIUrl":"https://doi.org/10.1080/07373937.2023.2235412","url":null,"abstract":"Abstract The atomization of sewage sludge is a key step in its drying process. This study conducts an industrial-scale experimental study to investigate the performance of a self-developed internal-mixing air-blast nozzle for atomizing sewage sludge. The size of atomized droplets is calculated using image processing technology. Using the specific size and characteristic size of the droplets, the droplet distribution and the droplet motion behavior in spray field are investigated at various air-to-liquid mass flow rate ratio (ALR). The larger the ALR, the smaller the atomization droplets. By installing outlet diffusers and impaction pins, the atomization angle can be increased and the distribution of droplets in the spray field can be improved. The outlet diffuser with an outlet angle of 90° and the square impaction pin exhibit optimal effect. Experiments with real scale and industrial grade have a significant reference value for industrial applications of sludge atomization.","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":"1 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41832651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-10DOI: 10.1080/07373937.2023.2232455
Yang Zhou, Heng Liu, Boyi Zhao, Hulin Li
Abstract Vacuum dewatering methods are widely used to treat high-moisture dredged sludge; however, significant particle migration problems exist during treatment, particularly for sand–clay mixture slurries. A dewatering technology called a vacuum tube filter (VTF) system is proposed herein to alleviate the particle migration problem of sand–clay mixture slurries. First, four sets of model tests were performed using the VTF system and conventional vacuum (dewatering) method (CVM, i.e., a prefabricated strip-shaped drain assisted by vacuum) with two types of sand–clay mixed slurries. The water content distribution, settlement, and discharged water from the VTF system were compared with those from the CVM. The VTF system was superior to the CVM in terms of the dewatering rate and effect. Moreover, the particle migration problem was theoretically analyzed using a consolidation solution. With both slurries, the VTF system exhibited a lower particle-migration-problem-induced clogging effect. Thus, the VTF system can effectively alleviate the particle migration problem and enhance the dewatering of high-moisture sand–clay slurries.
{"title":"Dewatering rate of vacuum tube filter (VTF)-system-treated sand–clay mixed slurry","authors":"Yang Zhou, Heng Liu, Boyi Zhao, Hulin Li","doi":"10.1080/07373937.2023.2232455","DOIUrl":"https://doi.org/10.1080/07373937.2023.2232455","url":null,"abstract":"Abstract Vacuum dewatering methods are widely used to treat high-moisture dredged sludge; however, significant particle migration problems exist during treatment, particularly for sand–clay mixture slurries. A dewatering technology called a vacuum tube filter (VTF) system is proposed herein to alleviate the particle migration problem of sand–clay mixture slurries. First, four sets of model tests were performed using the VTF system and conventional vacuum (dewatering) method (CVM, i.e., a prefabricated strip-shaped drain assisted by vacuum) with two types of sand–clay mixed slurries. The water content distribution, settlement, and discharged water from the VTF system were compared with those from the CVM. The VTF system was superior to the CVM in terms of the dewatering rate and effect. Moreover, the particle migration problem was theoretically analyzed using a consolidation solution. With both slurries, the VTF system exhibited a lower particle-migration-problem-induced clogging effect. Thus, the VTF system can effectively alleviate the particle migration problem and enhance the dewatering of high-moisture sand–clay slurries.","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46939381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-06DOI: 10.1080/07373937.2023.2229896
Da Li, Bao Rong, X. Rui, Yixin Liu, Guoping Wang
Abstract Centrifugal dewatering is a common process used for solid-liquid separation in chemical industry. This process involves the intricate interaction between particles and liquid under centrifugal pressure. Accurate modeling and simulation of the kinetic process are key to optimizing the dewatering parameters. However, the feeding stage is often disregarded in most of the simulation studies, leading to obvious differences from the actual conditions in the dewatering behavior and initial solid concentration. In this study, a 1D-axisymmetric model is established to simulate the feeding and pre-dewatering stages of an inverting filter centrifuge. The simulation results at different rotating speeds agree with the experimental observations and show a significant difference compared to the model that ignores the feeding stage. Both phenomena demonstrate the method in this study is accurate and reliable. Furthermore, the effects of feeding parameters are investigated using the Sobol global sensitivity analysis method. This study provides crucial assistance for the parameters’ optimization and prediction of centrifugal dewatering.
{"title":"Study on the solid-liquid separation mechanism of the inverting filter centrifuge’s dewatering process","authors":"Da Li, Bao Rong, X. Rui, Yixin Liu, Guoping Wang","doi":"10.1080/07373937.2023.2229896","DOIUrl":"https://doi.org/10.1080/07373937.2023.2229896","url":null,"abstract":"Abstract Centrifugal dewatering is a common process used for solid-liquid separation in chemical industry. This process involves the intricate interaction between particles and liquid under centrifugal pressure. Accurate modeling and simulation of the kinetic process are key to optimizing the dewatering parameters. However, the feeding stage is often disregarded in most of the simulation studies, leading to obvious differences from the actual conditions in the dewatering behavior and initial solid concentration. In this study, a 1D-axisymmetric model is established to simulate the feeding and pre-dewatering stages of an inverting filter centrifuge. The simulation results at different rotating speeds agree with the experimental observations and show a significant difference compared to the model that ignores the feeding stage. Both phenomena demonstrate the method in this study is accurate and reliable. Furthermore, the effects of feeding parameters are investigated using the Sobol global sensitivity analysis method. This study provides crucial assistance for the parameters’ optimization and prediction of centrifugal dewatering.","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45756708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-06DOI: 10.1080/07373937.2023.2229650
F. Mneimneh, S. Ramakrishna
The body of knowledge is known as technology, and the process of developing technologies is called engineering. Technology can relate to inventions as rudimentary as stone tools or as complicated as genetic engineering and information technology. Engineering attempts to use these inventions to meet societal demands from water, energy, medical care, technical advancements, etc. Herein, the history of technology and engineering projects was in chronological synchrony long ago.
{"title":"A path forward for the engineering and technology","authors":"F. Mneimneh, S. Ramakrishna","doi":"10.1080/07373937.2023.2229650","DOIUrl":"https://doi.org/10.1080/07373937.2023.2229650","url":null,"abstract":"The body of knowledge is known as technology, and the process of developing technologies is called engineering. Technology can relate to inventions as rudimentary as stone tools or as complicated as genetic engineering and information technology. Engineering attempts to use these inventions to meet societal demands from water, energy, medical care, technical advancements, etc. Herein, the history of technology and engineering projects was in chronological synchrony long ago.","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":"41 1","pages":"1383 - 1385"},"PeriodicalIF":3.3,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41552208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-06DOI: 10.1080/07373937.2023.2232442
Xinchen Yu, Xuemei Ding
Abstract The main goal of this study is to examine drying practices in order to make an objective evaluation of polyester woven fabric properties after several cycles of tumble-drying. Abrasion damage to polyester woven fabric during drying in a household tumble dryer are evaluated by SEM (scanning electron microscopy), smoothness appearance, dimensional stability and strain tests. Results showed that the surface of polyester fiber presented various damages after suffering from abrasion for a series of drying cycles, including peeling off, fragments flaking, spots and wrinkles, but no obvious fiber fracture or crack was found. And found that drying had little effect on smoothness appearance, dimensional stability and tensile strength. This indicated that drying had no overall effect on fabric physical and mechanical properties. Moreover, moisture loss patterns during drying as a function of time or temperature indicate possible ways to minimize dryer abrasion damage by reducing unnecessary tumble-drying time. This founding is helpful to understand of damage mechanism of polyester woven fabrics drying in dryer and proves that using tumble dryer to dry polyester woven fabrics is possible and effective.
{"title":"Investigation on polyester woven fabric damage by tumble drying","authors":"Xinchen Yu, Xuemei Ding","doi":"10.1080/07373937.2023.2232442","DOIUrl":"https://doi.org/10.1080/07373937.2023.2232442","url":null,"abstract":"Abstract The main goal of this study is to examine drying practices in order to make an objective evaluation of polyester woven fabric properties after several cycles of tumble-drying. Abrasion damage to polyester woven fabric during drying in a household tumble dryer are evaluated by SEM (scanning electron microscopy), smoothness appearance, dimensional stability and strain tests. Results showed that the surface of polyester fiber presented various damages after suffering from abrasion for a series of drying cycles, including peeling off, fragments flaking, spots and wrinkles, but no obvious fiber fracture or crack was found. And found that drying had little effect on smoothness appearance, dimensional stability and tensile strength. This indicated that drying had no overall effect on fabric physical and mechanical properties. Moreover, moisture loss patterns during drying as a function of time or temperature indicate possible ways to minimize dryer abrasion damage by reducing unnecessary tumble-drying time. This founding is helpful to understand of damage mechanism of polyester woven fabrics drying in dryer and proves that using tumble dryer to dry polyester woven fabrics is possible and effective.","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48747093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-06DOI: 10.1080/07373937.2023.2229916
K. Samborska, K. Sarabandi, R. Tonon, Ayhan Topuz, Emrah Eroğlu, F. Kaymak‐Ertekin, Narjes Malekjani, S. Jafari
{"title":"Recent progress in the stickiness reduction of sugar-rich foods during spray drying","authors":"K. Samborska, K. Sarabandi, R. Tonon, Ayhan Topuz, Emrah Eroğlu, F. Kaymak‐Ertekin, Narjes Malekjani, S. Jafari","doi":"10.1080/07373937.2023.2229916","DOIUrl":"https://doi.org/10.1080/07373937.2023.2229916","url":null,"abstract":"","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44964704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-03DOI: 10.1080/07373937.2023.2227433
Hiram Varela, María González
Abstract We present the simulation of the drying of porous solids with abruptly changing permeability using the Darcy-Forchheimer equations. This model arises in fluid mechanics through porous media when the flow exhibits moderate to high velocities and can be useful to predict the drying rate of the first drying period, which is usually constant. The presence of abrupt changes in permeability creates strong singularities and makes it difficult to obtain accurate predictions of the fluid flow, velocity, and pressure drop. In order to overcome these difficulties, we apply an adaptive finite element method based on a simple a posteriori error indicator, reliable and locally efficient, that allows us to refine the mesh over the singularities. We also present a semi-analytical method to obtain an accurate measurement of the apparent permeability of a porous medium. Finally, we provide some numerical experiments that illustrate the performance of the method.
{"title":"An improved model for the drying of porous solids with abruptly changing permeability","authors":"Hiram Varela, María González","doi":"10.1080/07373937.2023.2227433","DOIUrl":"https://doi.org/10.1080/07373937.2023.2227433","url":null,"abstract":"Abstract We present the simulation of the drying of porous solids with abruptly changing permeability using the Darcy-Forchheimer equations. This model arises in fluid mechanics through porous media when the flow exhibits moderate to high velocities and can be useful to predict the drying rate of the first drying period, which is usually constant. The presence of abrupt changes in permeability creates strong singularities and makes it difficult to obtain accurate predictions of the fluid flow, velocity, and pressure drop. In order to overcome these difficulties, we apply an adaptive finite element method based on a simple a posteriori error indicator, reliable and locally efficient, that allows us to refine the mesh over the singularities. We also present a semi-analytical method to obtain an accurate measurement of the apparent permeability of a porous medium. Finally, we provide some numerical experiments that illustrate the performance of the method.","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":"41 1","pages":"2210 - 2225"},"PeriodicalIF":3.3,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45638277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-29DOI: 10.1080/07373937.2023.2223278
W. Hajji, S. Bellagha, C. Téllez-Pérez, S. Mounir, Mohamed Salah Negm, T. Allaf, V. Lefrançois, C. Besombes, A. Mujumdar, K. Allaf
{"title":"Coupling Interval Hyper-Active Drying (IHAD) with Instant Controlled Pressure Drop (D.I.C.) to define new swell-drying processes","authors":"W. Hajji, S. Bellagha, C. Téllez-Pérez, S. Mounir, Mohamed Salah Negm, T. Allaf, V. Lefrançois, C. Besombes, A. Mujumdar, K. Allaf","doi":"10.1080/07373937.2023.2223278","DOIUrl":"https://doi.org/10.1080/07373937.2023.2223278","url":null,"abstract":"","PeriodicalId":11374,"journal":{"name":"Drying Technology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42697531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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