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Molekulare Solarthermiespeicher—zwei Fallstudien zur Optimierung Molecular solar thermal storage—two case studies on optimization 分子太阳能蓄热——优化的两个实例研究
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 Epub Date: 2026-07-06 DOI: 10.1002/cite.70122
Sonja M. Biebl, Holger F. Bettinger, Hermann A. Wegner
{"title":"Molekulare Solarthermiespeicher—zwei Fallstudien zur Optimierung\u0000 Molecular solar thermal storage—two case studies on optimization","authors":"Sonja M. Biebl,&nbsp;Holger F. Bettinger,&nbsp;Hermann A. Wegner","doi":"10.1002/cite.70122","DOIUrl":"https://doi.org/10.1002/cite.70122","url":null,"abstract":"<p>Molecular solar thermal storage (MOST) represents a promising energy storage method in which solar energy is stored in the form of molecular chemical energy that can be released in the form of heat upon demand. The active molecule not only acts as an energy collector, but also performs the storage function. For efficient applications, many parameters must be optimized, such as storage density, storage duration, and overlap of the molecular absorption spectrum with the solar spectrum. This article presents two examples, azobenzene and dihydroazoborinine, to illustrate the possibilities and challenges for optimization.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 9","pages":"535-542"},"PeriodicalIF":1.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.70122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Inhalt: Chem. Ing. Tech. 9/2026 内容:化学。荷兰国际集团(Ing)。9/2026技术。
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 DOI: 10.1002/cite.70158
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引用次数: 0
Exergy Analysis of Membrane Distillation Powered by Vortex Tube for Brackish Water Desalination 涡旋管膜蒸馏淡化咸淡水的火用分析
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 Epub Date: 2026-03-26 DOI: 10.1002/cite.70090
Emad Ali, Jamel Orfi
{"title":"Exergy Analysis of Membrane Distillation Powered by Vortex Tube for Brackish Water Desalination","authors":"Emad Ali,&nbsp;Jamel Orfi","doi":"10.1002/cite.70090","DOIUrl":"https://doi.org/10.1002/cite.70090","url":null,"abstract":"<div>\u0000 \u0000 <p>Exergy analysis of a combined membrane distillation (MD) and vortex tube is numerically performed and presented in this work. The vortex tube generates a temperature difference between hot and cold streams that can operate the MD process with sufficiently hot feed and cold permeate. The heat and mass transfer as well as the exergy analyses corresponding to this integrated system have been modeled. The simulations indicated that the hybrid system exhibits an exergy loss of 212.5 kW and a low exergy efficiency of 1.5%. The vortex tube is found responsible for 97% of the exergy destruction. The other supplementary equipment shares the remaining 3% of the exergy loss. The supplementary equipment exhibits a high individual exergy efficiency of more than 80%. Increasing the inlet gas pressure improves the distillate production and exergy efficiency but worsens the irreversibility. Raising the air-to-water mass ratio enhances the distillate production but worsens the exergy destruction significantly and the exergy efficiency marginally. Escalating the cold mass ratio degrades the irreversibility slightly, but the exergy efficiency substantially. A modified hybrid structure can reduce the overall irreversibility by 9% and increase the exergy efficiency by 872%.</p>\u0000 </div>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 9","pages":"587-599"},"PeriodicalIF":1.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Vergleich der Brennwertvorhersagen für einzelne und kombinierte Biomassekategorien mit einem künstlichen neuronalen Netzwerk 利用人工神经网络比较单个和组合生物质类别的热值预测
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 Epub Date: 2026-07-02 DOI: 10.1002/cite.70128
Karim Ghaib
{"title":"Vergleich der Brennwertvorhersagen für einzelne und kombinierte Biomassekategorien mit einem künstlichen neuronalen Netzwerk","authors":"Karim Ghaib","doi":"10.1002/cite.70128","DOIUrl":"https://doi.org/10.1002/cite.70128","url":null,"abstract":"<div>\u0000 \u0000 <p>The higher heating value of biomass feedstocks is a crucial parameter for their energetic utilization and significantly influences the selection of suitable input materials. Typically, the calorific value is determined using an adiabatic oxygen bomb calorimeter—a method that is precise but costly and time-consuming. For this reason, researchers have increasingly turned to regression methods and artificial intelligence techniques to predict the calorific value based on the chemical properties of biomass.</p>\u0000 <p>In this study, an artificial neural network is trained to predict the higher heating value of various biomass categories. Subsequently, the model is applied to the entire dataset—i.e., all categories combined. The objective is to systematically analyze the influence of categorization on the model's predictive accuracy and to evaluate whether a differentiated modeling approach by category offers significant advantages over an aggregated modeling approach.</p>\u0000 </div>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 9","pages":"576-586"},"PeriodicalIF":1.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Semi-Supervised Learning of Parsimonious Spatiotemporal Representations for Industrial Quality Prediction 工业质量预测中简约时空表征的半监督学习
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 Epub Date: 2026-02-03 DOI: 10.1002/cite.70066
Xiaoping Guo, Suchang Li, Yuan Li
{"title":"Semi-Supervised Learning of Parsimonious Spatiotemporal Representations for Industrial Quality Prediction","authors":"Xiaoping Guo,&nbsp;Suchang Li,&nbsp;Yuan Li","doi":"10.1002/cite.70066","DOIUrl":"https://doi.org/10.1002/cite.70066","url":null,"abstract":"<p>Stacked autoencoder (SAEs) are widely applied in industrial processes. However, issues such as insufficient correlation between hidden layer features and quality variables, feature redundancy caused by increased stacking layers, and inadequate utilization of unlabeled samples compromise prediction accuracy. This article proposes a method called semi-supervised learning of parsimonious spatiotemporal representations for industrial quality prediction (SQTDSTF). A semi-supervised spatiotemporal feature extraction network (SST) processes labeled and unlabeled samples; a quality-related module selects key features to enhance feature-quality correlation; kernel principal component analysis (KPCA) is applied to each hidden layer to suppress redundancy. The effectiveness of the SQTDSTF model is validated through simulations of debutaning towers and thermal power generation.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 9","pages":"543-555"},"PeriodicalIF":1.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition 颗粒大小、湿度和云密度对木屑着火的影响
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 Epub Date: 2026-03-26 DOI: 10.1002/cite.70091
Matteo Giesen, Daniel Bernhardt, Michael Beckmann
{"title":"Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition","authors":"Matteo Giesen,&nbsp;Daniel Bernhardt,&nbsp;Michael Beckmann","doi":"10.1002/cite.70091","DOIUrl":"https://doi.org/10.1002/cite.70091","url":null,"abstract":"<p>The ignition and combustion behavior of particle clouds is a key factor in designing and operating burners and combustion chambers. Because particle–particle interactions significantly impact these processes, research beyond single-particle studies is necessary. This study analyzes the influence of particle size, water content, and particle cloud density on ignition and combustion behavior using spectroscopic measurements. The results show that ignition delay time increases with increasing particle size and cloud density due to reduced heating rates. In contrast, combustion duration is primarily determined by water content and cloud density. Fragmentation induced by moisture shortens, whereas the high amount of volatiles obstructs oxygen diffusion in dense particle clouds prolongs burnout.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 9","pages":"567-575"},"PeriodicalIF":1.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.70091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Titelbild Chem. Ing. Tech. 9/2026 想你闻Chem .Ing .科技. 9/2026
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 DOI: 10.1002/cite.70159
{"title":"Titelbild Chem. Ing. Tech. 9/2026","authors":"","doi":"10.1002/cite.70159","DOIUrl":"https://doi.org/10.1002/cite.70159","url":null,"abstract":"<p>Copyright: Pixel-Shot@AdobeStock\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.70159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148871809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Application of Ultrasonic Sensors for Determining the Height of Dynamic Two-Phase Layers in Tray Columns 超声传感器在测定托盘塔动态两相层高度中的应用
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-09-03 Epub Date: 2026-03-04 DOI: 10.1002/cite.70087
Niklas Breuer, Marcus Grünewald, Julia Riese
{"title":"Application of Ultrasonic Sensors for Determining the Height of Dynamic Two-Phase Layers in Tray Columns","authors":"Niklas Breuer,&nbsp;Marcus Grünewald,&nbsp;Julia Riese","doi":"10.1002/cite.70087","DOIUrl":"https://doi.org/10.1002/cite.70087","url":null,"abstract":"<p>This study shows the applicability of ultrasonic sensors for measuring two-phase layer heights in sieve tray columns under dynamic operating conditions. Although these sensors are known for their precision in stationary systems, their reliability under fluctuating flow conditions has remained unclear. To validate their accuracy, ultrasonic measurements were compared with both automated image analysis via a Python algorithm and manual video evaluation. Results show that ultrasonic sensors maintain high precision at moderate gas loads and with small hole diameters. Increased gas loads and turbulence, however, reduced measurement accuracy due to signal scattering. The findings highlight the potential of ultrasonic sensing for real-time, noninvasive monitoring in dynamic multiphase systems.</p>","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 9","pages":"556-566"},"PeriodicalIF":1.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cite.70087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Inhalt: Chem. Ing. Tech. 8/2026 内容:化学。荷兰国际集团(Ing)。8/2026技术。
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-08-04 DOI: 10.1002/cite.70150
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引用次数: 0
Weniger Studienanfänger, veränderter Berufseinstieg 更少的新生，改变职业的开始
IF 1.6 4区 工程技术
Chemie Ingenieur Technik Pub Date : 2026-08-04 DOI: 10.1002/cite.70152
{"title":"Weniger Studienanfänger, veränderter Berufseinstieg","authors":"","doi":"10.1002/cite.70152","DOIUrl":"https://doi.org/10.1002/cite.70152","url":null,"abstract":"","PeriodicalId":9912,"journal":{"name":"Chemie Ingenieur Technik","volume":"98 8","pages":"455-456"},"PeriodicalIF":1.6,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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