发布求助
文献互助 智能选刊 最新文献

Proceedings of 21th International Drying Symposium最新文献

筛选
英文 中文
Determination and modelling of the particle size dependent residence time distribution in a pilot plant spray dryer 试验装置喷雾干燥机中颗粒大小依赖停留时间分布的测定和建模
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7740
Nora Alina Ruprecht, R. Kohlus
{"title":"Determination and modelling of the particle size dependent residence time distribution in a pilot plant spray dryer","authors":"Nora Alina Ruprecht, R. Kohlus","doi":"10.4995/IDS2018.2018.7740","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7740","url":null,"abstract":"The residence time distribution (RTD) in a pilot plant spray dryer was characterised for two kinds of air distributors (centrifugal and parallel flow) and for different atomizing air pressures. To determine the RTD - and the RTD of different particle size fractions - the particle concentration and size at the dryer outlet was measured continuously using a particle counter. Results were modelled using the Bodenstein number and the CSTR in series model. An increasing nozzle pressure leads to a decrease in mean residence time and a more narrow distribution. The influence of nozzle pressure is more pronounced than of air distributor and particle size fraction. Keywords: Residence time distribution; Particle size; Bodenstein number modelling; Nozzle influence; Mechanism of air distribution ","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132054596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mechanical and thermal segregation of milli-beads during contact heating in a rotary drum. DEM modeling and simulation. 转鼓接触加热时微珠的机械和热分离。DEM建模与仿真。
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7423
Aline Mesnier, M. Rouabah, C. Cogné, R. Peczalski, Séverine Vessot-Crastes, P. Vacus, J. Andrieu
{"title":"Mechanical and thermal segregation of milli-beads during contact heating in a rotary drum. DEM modeling and simulation.","authors":"Aline Mesnier, M. Rouabah, C. Cogné, R. Peczalski, Séverine Vessot-Crastes, P. Vacus, J. Andrieu","doi":"10.4995/IDS2018.2018.7423","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7423","url":null,"abstract":"The flow mechanics and heat transfer phenomena within a bed of milli-metric size spherical beads rotated and heated by contact in a horizontal drum were simulated by means of commercial discrete element software EDEM. Mono-dispersed and bi-dispersed beds (two particle sizes or two particle densities) were considered. The mechanical segregation index (standard deviation of local bed compositions) and the thermal segregation index (standard deviation of beads temperatures) were calculated for the different types of bed and same operating conditions. The thermal segregation was found to be enhanced by mechanical segregation and was much stronger for bi-dispersed beds than for monodispersed one.   Keywords: rotating drum; particulate solid; segregation; contact heat transfer; DEM simulation. ","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133877147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Drying intensification by vibration: fundamental study of liquid water inside a pore 振动强化干燥:孔隙内液态水的基础研究
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7961
Wangshu Chen, J. Colin, J. Casalinho, Mohammed El Amine Ben Amara, M. Stambouli, P. Perré
{"title":"Drying intensification by vibration: fundamental study of liquid water inside a pore","authors":"Wangshu Chen, J. Colin, J. Casalinho, Mohammed El Amine Ben Amara, M. Stambouli, P. Perré","doi":"10.4995/IDS2018.2018.7961","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7961","url":null,"abstract":"Vibration is a promising way to intensify the drying process through heating-up due to viscous dissipation, activation of internal liquid transfer and increase of external transfer. To better assess the possible contribution of these effects, we choose a multiscale approach. This paper is focused on the pore scale, simulated by a capillary tube partially filled with water subjected to sinusoidal vibrations. We studied the displacement of water inside this tube through image analysis. This configuration mimics the moisture transfer inside the pores of a porous media during drying. The experimental device developed in this study is applicable to a wide range of configurations, such as symmetrical or asymmetrical vibrations. Keywords: drying intensification, acoustic vibration, pore scale, symmetrical and asymmetrical signals, image processing.","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123235779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Heat recovery from biomass drying in energy systems 能源系统中生物质干燥的热回收
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7300
J. Havlík, T. Dlouhý
{"title":"Heat recovery from biomass drying in energy systems","authors":"J. Havlík, T. Dlouhý","doi":"10.4995/IDS2018.2018.7300","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7300","url":null,"abstract":"This paper deals with energy savings by the heat recovery of waste vapour from moist biomass drying in energy systems. Drying is an energy-intensive process. Energy consumption can be reduced by using indirect drying by recuperating the heat of waste vapour generated in the process; however the vapour is polluted by air and small mechanical particles. Experiments with green wood chips were realized on an indirect dryer with a condensing heat exchanger to experimentally verify the grade and conditions of heat recovery from waste vapour. On the basis of the experimental results, the potential of the heat recovery from waste vapour was evaluated. Keywords: Indirect drying; Biomass; Waste vapour; Heat recovery","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124120622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cellulosic fibre drying: fundamental understanding and process modeling 纤维素纤维干燥:基本理解和过程建模
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/ids2018.2018.7384
S. Mondal, Puja Agarwala, Suvankar Dutta, V. Naik-Nimbalkar, Pratik Pande, S. Dhumal
{"title":"Cellulosic fibre drying: fundamental understanding and process modeling","authors":"S. Mondal, Puja Agarwala, Suvankar Dutta, V. Naik-Nimbalkar, Pratik Pande, S. Dhumal","doi":"10.4995/ids2018.2018.7384","DOIUrl":"https://doi.org/10.4995/ids2018.2018.7384","url":null,"abstract":"Process modeling of conveyer dryer for cellulosic fibre drying demands many fundamental insights. Present study highlights detailed cellulosic fibre drying aspects like mass transfer correlation relating mass transfer rate with process conditions, normalized drying curve and critical moisture content. Cellulosic fibre drying follows falling rate period, where rate of mass transfer decreases with moisture content. Conveyer dryer process model for commercial cellulosic fibre drying was developed and validated successfully. Moderate drying strategy derived based on developed process model and drying fundamentals was deployed at commercial scale which helped in reducing the moisture variability. Keywords: Cellulosic fibre, Conveyor dryer, Process Model, Sherwood number, Moderate drying ","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133351511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The effect of drying on the mechanical properties and structure of biodegradable films 干燥对生物可降解薄膜力学性能和结构的影响
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7624
Gabriela Silveira da Rosa, S. Vanga, Y. Gariépy, V. Raghavan
{"title":"The effect of drying on the mechanical properties and structure of biodegradable films","authors":"Gabriela Silveira da Rosa, S. Vanga, Y. Gariépy, V. Raghavan","doi":"10.4995/IDS2018.2018.7624","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7624","url":null,"abstract":"The aim of this study was to investigate the effect of convective and vacuum drying on properties of biodegradable films. The film-forming solutions were prepared with bovine gelatin and carrageenan. The films solutions were dried in convective and vacuum dryers at temperatures of 40, 50 and 60 oC. The results of convective drying kinetics of biofilms showed a constant drying rate period followed by a falling drying rate period. The results of thickness showed dependence with moisture content present in films.Carrageenan films showed promising results, with high values of tensile strength and elongation for convective drying at 60 oC. Keywords: gelatin; carrageenan; drying; biofilm ","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132071435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Non-Fickian diffusion in biomaterials 生物材料中的非菲克扩散
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7943
G. Almeida, P. Perré
{"title":"Non-Fickian diffusion in biomaterials","authors":"G. Almeida, P. Perré","doi":"10.4995/IDS2018.2018.7943","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7943","url":null,"abstract":"The knowledge of water vapour diffusion in materials is very important in several fields of application (drying, building materials, biofilms…). Regarding the drying process, the value of mass diffusivity, as well as its variations with moisture content, governs the second drying period, which is the most important in terms of drying time, energy consumption and product quality. In the case of biomaterials used for building insulation, this parameter is essential for transformation processes, including drying, but also for the proper design and use of buildings. Concerning biofilms, barrier properties are one of the most important physical properties of these materials to properly ensure a good end use. Nevertheless, experimental data of mass uptake of some biomaterials showed that did not follow the standard Fickian model. The precise determination of this non-Fickian behaviour showed to be a difficult task since the physical phenomena responsible for such behaviours depend on the biomaterial structure and physical properties. In particular, the abnormal macroscopic behaviour could result from the pore morphology (dual-scale effects), from the nano-structure, from the molecular reorganisation, or a combination of these spatial scales. This conference proposes a new methodology to quantify the non-Fickian diffusion. Based on a macroscopic formulation of coupled heat and mass transfer with kernel functions, the model parameters, intrinsic characteristic of the product of interest are determined by inverse analysis. Several complementary transient experiments can be analysed simultaneously, which insures the method robustness. Application examples are proposed for different products, including lignocellulosic materials and nanostructured biofilms.","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124259787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Osmotic dehydration of eggplant, carrot and beetroot slices: Effect of vacuum on phenolic acid composition 茄子、胡萝卜和甜菜根片的渗透脱水:真空对酚酸组成的影响
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7787
Ronaldo Elias de Mello-Júnior, J. Junqueira, J. Corrêa, K. S. Mendonça, Lucas de Carvalho
{"title":"Osmotic dehydration of eggplant, carrot and beetroot slices: Effect of vacuum on phenolic acid composition","authors":"Ronaldo Elias de Mello-Júnior, J. Junqueira, J. Corrêa, K. S. Mendonça, Lucas de Carvalho","doi":"10.4995/IDS2018.2018.7787","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7787","url":null,"abstract":"The aim of this work was to evaluate the influence of vacuum application on the phenolic acid content of osmodehydrated eggplant, carrot and beetroot samples. The contents of catechins and chlorogenic acid were determined by HPLC analysis. Changes in the contents of phenolic acids after the osmotic processes were observed. It was found a reduction in catechins and chlorogenic acids, probable due to the migration and degradation losses. In a general way, the vacuum reduced the catechin and chlorogenic acid contents, compared to the osmotic dehydration at atmospheric pressure. Keywords: Pulsed vacuum osmotic dehydration; chlorogenic acid; catechins. ","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121120358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CFD study of air flow patterns and droplet trajectories in a lab scale vortex chamber spray dryer 实验室规模涡旋室喷雾干燥机气流形态和液滴轨迹的CFD研究
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-11 DOI: 10.4995/IDS2018.2018.7686
Umair Jamil Ur Rahman, Ilias Baiazitov, A. Pożarlik, G. Brem
{"title":"CFD study of air flow patterns and droplet trajectories in a lab scale vortex chamber spray dryer","authors":"Umair Jamil Ur Rahman, Ilias Baiazitov, A. Pożarlik, G. Brem","doi":"10.4995/IDS2018.2018.7686","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7686","url":null,"abstract":"In order to develop an alternative spray drying technology, a high drying rate in a smaller volume must be achieved. In this paper, results of CFD study are presented, carried out to investigate the possibility of spray drying in a novel design vortex chamber. The model is validated against experimental data, that makes a good agreement with an average error of 7% with only air and 24% with water spray. Results of temperature fields and droplet impact positions are discussed. The computations demonstrate that vortex chamber spray dryer can be an attractive solution for drying technology. Keywords: CFD; spray drying; vortex chamber; atomization; ","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125598495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Stabilization of encapsulated probiotics from the bacterium Lactobacillus casei by different drying techniques 不同干燥技术对干酪乳杆菌荚膜益生菌的稳定作用
Proceedings of 21th International Drying Symposium Pub Date : 2018-09-07 DOI: 10.4995/IDS2018.2018.7744
Elsa Acosta-Piantini, M. Villarán, J. Lombraña
{"title":"Stabilization of encapsulated probiotics from the bacterium Lactobacillus casei by different drying techniques","authors":"Elsa Acosta-Piantini, M. Villarán, J. Lombraña","doi":"10.4995/IDS2018.2018.7744","DOIUrl":"https://doi.org/10.4995/IDS2018.2018.7744","url":null,"abstract":"The main objective of this work is to encapsulate and dry the bacterium probiotic Lactobacillus casei applying three different drying techniques (lyophilization, fluidized bed and flash freeze drying) as well as to evaluate their viability during storage in the dark at 20ºC and 34% relative humidity for 28 days. In addition, to compare viability of the bacterium processed with flash freeze drying with cryoprotectant (skim milk) and without cryoprotectant. In the case of flash freeze drying, the final level of viability shows the potential of this drying technique with much less operating costs than lyophilization. Keywords: Encapsulated, probiotics, lactobacillus, casei, drying ","PeriodicalId":107148,"journal":{"name":"Proceedings of 21th International Drying Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115464022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信