Chemical Engineering and Processing - Process Intensification最新文献_第4页

An Interview with Marica Muscetta 专访玛丽卡-穆斯切塔

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.109913

Marica Muscetta

引用次数: 0

Optimization of antimicrobial properties of essential oils under rotating magnetic field 优化旋转磁场下精油的抗菌特性

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.110041

Agata Markowska-Szczupak , Oliwia Paszkiewicz , Aneta Wesołowska , Marian Kordas , Rafał Rakoczy

{"title":"Optimization of antimicrobial properties of essential oils under rotating magnetic field","authors":"Agata Markowska-Szczupak , Oliwia Paszkiewicz , Aneta Wesołowska , Marian Kordas , Rafał Rakoczy","doi":"10.1016/j.cep.2024.110041","DOIUrl":"10.1016/j.cep.2024.110041","url":null,"abstract":"<div><div>Essential oils (EOs) extracted from <em>Thymus vulgaris</em> L. (TEO) and <em>Rosmarinus officinalis</em> L. (REO) have aroused interest in their application to food preservation or in alternative medicine or aroma-therapy. In this study, the chemical compositions of essential oils were determined and analyzed. The purpose of the investigation was to investigate in detail the activity of essential oils extracted from herbs (thyme and rosemary) and exposed to rotating magnetic filed (RMF) against the model Gram-negative bacteria <em>Escherichia coli</em> The bacterial removal has been optimized by a surface response methodology (RSM). It was shown that TEO in a concentration of 10 µL/50 mL of water resulted in a total bacterial number reduction after 40 min under the RMF. Rosemary's antibacterial effect was much weaker. Thus, we summarized that the rotating magnetic fields at a frequency of 27 Hz can increase the antimicrobial efficiency but the effect depends on the type of essential oil. High-rate bacteria removal was obtain for thyme oil in concentration of 30 µL of thyme oil to 50 mL of bacterial suspension, exposed to RMF at a frequency of 27 Hz for 40–60 min.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"205 ","pages":"Article 110041"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cell/particle manipulation using Bulk Acoustic Waves (BAWs) on centrifugal microfluidic platforms: A mathematical study 在离心微流体平台上使用体声波 (BAW) 操纵细胞/粒子：数学研究

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.110024

Soroush Zaheri-Ghannad , Vahid Kordzadeh-Kermani , Masoud Madadelahi

{"title":"Cell/particle manipulation using Bulk Acoustic Waves (BAWs) on centrifugal microfluidic platforms: A mathematical study","authors":"Soroush Zaheri-Ghannad , Vahid Kordzadeh-Kermani , Masoud Madadelahi","doi":"10.1016/j.cep.2024.110024","DOIUrl":"10.1016/j.cep.2024.110024","url":null,"abstract":"<div><div>This study presents an integrated acoustic-aided centrifugal microfluidic system to focus and separate microparticles. A 3D numerical simulation was conducted to analyze microparticle movement by exploiting the simultaneous imposition of centrifugal forces and bulk acoustic waves (BAWs) on an electrified lab-on-a-disc device (eLOD). Accordingly, the movement of microparticles was analyzed in a radially positioned rectangular microchannel at various rotation speeds. The effect of physical parameters, including the distance of the microchannel to the center/radius, tilting angle (<em>α</em>), the oscillation amplitude of BAWs, the microchannel's dimension, and the particles’ diameter on particle trajectories and focusing efficiency, was studied. It was found that properly adjusting the microchannel's placement at <em>α</em> = 30° made it possible to direct the focused stream of microparticles toward the desired outlet. Higher values of applied oscillation amplitude of BAWs (0.3 nm) led to perfect focusing of microparticles toward the middle outlet in a 200-µm width microchannel at 80 rad/s rotation. Furthermore, the system's ability to separate the circulating tumor cells (CTC) from white blood cells (WBC) was also simulated. The results showed that a successful size-based separation of these bioparticles is achievable by adequately adjusting the microchannel's position or tilting angle at 286 rpm.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"205 ","pages":"Article 110024"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572548","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}

引用次数: 0

An Interview with Francesca Paradisi 采访弗朗西斯卡-帕拉迪西

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.109914

Francesca Paradisi

引用次数: 0

An Interview with Sharon Velasquez-Orta 采访莎伦-贝拉斯克斯-奥尔塔

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.109915

Enrique A. López-Guajardo

引用次数: 0

Numerical and experimental investigation of Tesla micromixers with different three-dimensional herringbone structures 具有不同三维人字形结构的特斯拉微搅拌器的数值和实验研究

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.110040

Duo Sun , Lin Zeng , Yi Yang , Chao Liu , Jiaju Hong , Wenbo Han , Wei Li , Chenyong Wang , Jienan Shen , Hui Yang , Hongpeng Zhang

{"title":"Numerical and experimental investigation of Tesla micromixers with different three-dimensional herringbone structures","authors":"Duo Sun , Lin Zeng , Yi Yang , Chao Liu , Jiaju Hong , Wenbo Han , Wei Li , Chenyong Wang , Jienan Shen , Hui Yang , Hongpeng Zhang","doi":"10.1016/j.cep.2024.110040","DOIUrl":"10.1016/j.cep.2024.110040","url":null,"abstract":"<div><div>Laminar flow within channels at the micro- or nano-scale of the microfluidic device restricts the rapid mixing of different fluids, leading to reduced reaction velocity. In this study, different three-dimensional herringbone structures were designed to the Tesla micromixers to enhance transverse flow and vortex flow in the channels. Computational fluid dynamics (CFD) simulation results indicated that the sunken herringbone structure provided the most significant enhancement in mixing. The raised herringbone structure exhibited the best energy performance. When Reynolds number (Re) exceeded 60, the mixing indexes (MI) of the Tesla micromixers were over 90%. The improvement in mixing efficiency by both herringbone structures compensated for the weak mixing performance of the Tesla structure at lower Reynolds numbers (Re=0.2–30). Additionally, the mixing experimental results verified the accuracy of the simulation results. This study could provide guidance for improving the mixing performance of micromixers over a wide range of Reynolds numbers (Re=0–100).</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"205 ","pages":"Article 110040"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560720","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}

引用次数: 0

An Interview with Professor Prof. You Han 尤涵教授访谈

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.109947

You Han

引用次数: 0

An Interview with Assistant Professor Weerinda Mens 专访韦林达-门斯助理教授

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.109908

Weerinda Mens

引用次数: 0

An Interview with Prof. Lan Xingying 专访兰兴英教授

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.109911

Enrique A. López-Guajardo

引用次数: 0

Parametric design of curved hydrocyclone using data points and its separation enhancement mechanism 使用数据点的曲面水力旋流器参数化设计及其分离强化机制

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-01 DOI: 10.1016/j.cep.2024.110043

Xiaoyan Liu , Jian-gang Wang , Hualin Wang , Yanhong Zhang , Yan Zheng , Mochuan Sun , Yinghao Yang , Yuru Mei , Yafei Zhang

{"title":"Parametric design of curved hydrocyclone using data points and its separation enhancement mechanism","authors":"Xiaoyan Liu , Jian-gang Wang , Hualin Wang , Yanhong Zhang , Yan Zheng , Mochuan Sun , Yinghao Yang , Yuru Mei , Yafei Zhang","doi":"10.1016/j.cep.2024.110043","DOIUrl":"10.1016/j.cep.2024.110043","url":null,"abstract":"<div><div>Based on parametric design of curves using data points, two novel hydrocyclones were designed: Spline-Curved-Cone hydrocyclone (H2) and Expassoc-Curved-Cone hydrocyclone (H3). These designs are improvements on the traditional biconical hydrocyclone (H1). Numerical simulations and experimental validation by PIV measurement were used to investigate the effects of cone section profiles on the flow characteristics and separation efficiency. The results showed both H2 and H3 achieved higher separation efficiency than H1. Specifically, the highest efficiency of H3 increased by 24.71 %, and that of H2 increased by 16.22 % compared with H1. It was also found the curved design of cone section profile directly affects the tangential velocity distribution and pressure distribution of the flow field inside hydrocyclones. H3 exhibited better flow field stability and highest separation efficiency due to its optimized cone section space and flow structure. This study provides scientific basis and data support for the optimization and industrial application of the cylinder-on-cone hydrocyclones.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"205 ","pages":"Article 110043"},"PeriodicalIF":3.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553126","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}

引用次数: 0