Article
Electrochemistry
A. D. Karaoglan, E. Ozden
Summary: The coating process of tractor cabs is performed using electrostatic powder coating technique, with RSM proving to be reliable for achieving quality results.
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
(2021)
Article
Pharmacology & Pharmacy
Maja Frankiewicz, Malgorzata Sznitowska
Summary: The Design of Experiment was used to optimize the fluid bed coating process for minitablets, indicating critical process parameters for different types of minitablets through statistical analysis. This optimization process allows for the prediction of values necessary to obtain high-quality products.
Article
Thermodynamics
Marek Balas, Pavel Milcak, Patrik Elbl, Martin Lisy, Jakub Lachman, Petr Kracik
Summary: Biogas production through anaerobic digestion is widely used in the Czech Republic. Handling the solid residue, digestate, has become increasingly important. This study confirms the feasibility of utilizing digestate as a fuel for industrial-scale fluidised-bed gasification.
Article
Pharmacology & Pharmacy
Kyle Brewer, Todd J. McWhorter, Katherine Moseby, John L. Read, David Peacock, Anton Blencowe
Summary: Globally, invasive mammalian predators, such as feral cats, are causing significant harm to threatened species. To address this problem, researchers have developed the population-protecting implant (PPI), a subcutaneous implant that targets the most dangerous predators. This implant releases a toxic payload, leading to the death of the predator.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
T. McCann, E. J. Marek, Yaoyao Zheng, J. F. Davidson
Summary: This study investigates the combustion of waste glycerol in a fluidised bed. The results show that continuous burning of industrial glycerol is possible, but agglomeration of bed material should be taken into consideration. Moreover, glycerol can be autonomously burned in a fluidised bed without supplying heat.
Article
Pharmacology & Pharmacy
Elene De Cleyn, Rene Holm, Tatsiana Khamiakova, Guy Van den Mooter
Summary: This study aimed to enhance the understanding of the intensified vibratory mill by unraveling the milling process in terms of particle size reduction and heat generation. Five process parameters were investigated using an I-optimal design, and a mechanistic model for wet-stirred media milling processes was applied to identify optimization strategies such as adjusting bead size and implementing intermittent pausing for effective cooling. This work provides contour plots and predictive models to forecast particle size and temperature after milling of suspensions manufactured with the intensified vibratory mill.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Review
Energy & Fuels
L. A. Roman-Ramirez, J. Marco
Summary: This paper presents a critical literature review of the application of design of experiments methodology (DoE) in the manufacturing and characterization of lithium-ion batteries (LIBs). The review discusses various aspects of LIBs and provides a case study to demonstrate the practical application of DoE. The paper also highlights opportunities and potential areas of research for the application of traditional and modern designs in the LIBs field.
Article
Engineering, Chemical
E. Milacic, M. Nunez Manzano, S. Madanikashani, G. J. Heynderickx, K. M. Van Geem, M. W. Baltussen, J. A. M. Kuipers
Summary: Liquid injection in fluidized beds has a significant impact on the temperature uniformity and agglomeration behavior. The size and velocity of the injected droplets play a crucial role in determining the temperature distribution and agglomerate formation in the bed.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Iman Golpour, Mohammad Kaveh, Ana M. Blanco-Marigorta, Jose Daniel Marcos, Raquel P. F. Guine, Reza Amiri Chayjan, Esmail Khalife, Hamed Karami
Summary: This study aimed to optimize the thermodynamic characteristics of terebinth fruit drying using response surface methodology in a fluidized bed-infrared dryer. The research found that specific drying conditions could lead to the best results in terms of energy and exergy efficiency.
Article
Engineering, Chemical
Massimiliano Zanin, Eddie Chan, William Skinner
Summary: This study presents a practical model for predicting the fluidised bed porosity and apparent density of the HydroFloatTM as the teeter water velocity is varied. The model can be used to calculate the optimum settings to achieve the desired fluidised-bed porosity for different ores. The model is validated with good predictive capabilities on two different copper ores.
Article
Chemistry, Applied
Daya Shankar Pandey, Elena Yazhenskikh, Michael Mueller, Mirko Ziegner, Anna Trubetskaya, James J. Leahy, Marzena Kwapinska
Summary: This study investigates the transformation, release, and fate of inorganic matter during fluidized bed gasification of poultry litter and a mixture of poultry litter with limestone as an additive. The research characterized the ashes, analyzed the release of inorganic species during gasification, and predicted the formation of gaseous species and composition of solid residues. Overall, the study aimed to determine whether the ashes from gasification can be categorized as component materials for EU fertilizer products.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Hetian Chi, Miguel A. Pans, Chenggong Sun, Hao Liu
Summary: In this study, the use of molochite and dolomite as bed additives in a fluidised bed combustor was investigated to counter agglomeration during the combustion of wheat straw and miscanthus pellets. The results showed that dolomite was superior to molochite in prolonging defluidisation time when firing wheat straw. Lime addition to fuel had the most significant improvement on combustion performance for both fuels. The oxy-fuel combustion atmosphere had a great impact on the effectiveness of dolomite but little influence on the effectiveness of molochite.
Article
Chemistry, Analytical
Sophia N. Economidou, Cristiane P. Pissinato Pere, Michael Okereke, Dennis Douroumis
Summary: This work focuses on the optimization of 3D-printed microneedles, exploring the key relationships between design and manufacturing parameters and quality and performance. It was demonstrated that microneedle geometry affects behavior and drug delivery efficiency.
Article
Green & Sustainable Science & Technology
Simone Venettacci, Gennaro Salvatore Ponticelli, Stefano Guarino
Summary: This study introduces an innovative fluidised bed finishing process for turbine blades, which improves productivity and reduces costs. Compared to traditional manual processing, the fluidised bed process offers lower environmental impact and higher eco-sustainability.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
O. J. Kramer, C. van Schaik, J. J. Hangelbroek, P. J. de Moel, M. G. Colin, M. Amsing, E. S. Boek, W. P. Breugem, J. T. Padding, J. P. van der Hoek
Summary: A sensor based on Archimedes' principle was developed to obtain the hydraulic state gradient in liquid-solid fluidised bed reactors, which can determine particle size and voidage. Experimental results indicate that the sensor is a more time-effective method for predicting the hydraulic state of the fluidised bed.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Chemical
Ri Zhang, Shasha Zhang, Mengyan Ding
Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.
Article
Engineering, Chemical
Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan
Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.
Article
Engineering, Chemical
Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino
Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.
Review
Engineering, Chemical
Ningbo Song, Wanzhong Yin, Jin Yao
Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.
Article
Engineering, Chemical
Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens
Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.
Article
Engineering, Chemical
Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng
Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.
Article
Engineering, Chemical
Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan
Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.
Article
Engineering, Chemical
Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde
Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.
Article
Engineering, Chemical
Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu
Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.
Article
Engineering, Chemical
Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao
Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.
Review
Engineering, Chemical
Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri
Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.
Article
Engineering, Chemical
Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi
Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Engineering, Chemical
Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang
Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.
Article
Engineering, Chemical
Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das
Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.