Article
Chemistry, Applied
Yonghong Yan, Rui Sun, Liutao Sun, Wenkun Zhu, Dengke Chen
Summary: This study evaluated the effect of primary air velocity on the ignition characteristics of bituminous coal and semicoke mixture, indicating that convection heating was more important than radiant heating for fuel ignition. The optimized flame stability was achieved at a primary air velocity of 18 m/s, and a recommended PAV of no more than 22 m/s for co-firing bituminous coal with a large proportion of semicoke.
FUEL PROCESSING TECHNOLOGY
(2022)
Review
Energy & Fuels
Jakub Mularski, Jun Li
Summary: Exploiting biomass energy is a promising option to reduce CO2 emissions due to its renewability and carbon neutrality. This review investigates the ignition characteristics of biomass dust fuels, focusing on critical fuel properties and reactor conditions that affect ignition delay and mode. It also covers biomass combustion modeling methods and their capabilities, similarities, and drawbacks in terms of ignition prediction.
Article
Chemistry, Multidisciplinary
Olesya P. Stebeleva, Ludmila V. Kashkina, Andrey V. Minakov, Olga A. Vshivkova
Summary: It is common to use coal as a raw material in heat power engineering. However, the ignitability of coal cannot be easily eliminated. Using water-slurry-based coal-water fuel (CWF) instead of coal solves this problem. The rheological and sedimentation properties, combustion parameters, and emissions of CWF have been studied. The cavitation method of producing CWF improves fuel properties and reduces emissions.
Article
Mechanics
Hongfu Wang, Yan Liu, Moyan Liu, Xu Li, Zhenqing Shi, Yong Sun, Chuan Xiao, Fenglei Huang
Summary: A cylinder test was conducted to investigate the effect of aluminum powder properties on the metal driving performance of CL-20-based aluminized explosives in the direction perpendicular to detonation wave propagation. The research findings revealed that larger aluminum powder particles (in the range of 2-43 μm) resulted in stronger metal driving performance. Moreover, the explosive formulation with 25% aluminum showed weaker acceleration capability compared to the formulation with 15% aluminum. A quasi-isentropic theoretical model was proposed to describe the cylinder driving behavior of the aluminized explosive, taking into account the two-dimensional flow characteristics of detonation products in the radial and axial directions.
Article
Energy & Fuels
Pikai Zhang, Huangwei Zhang, Yun Feng Zhang
Summary: This study investigates the kinetic characteristics of char ignition and finds that ignition time is affected by various factors, while ignition temperature is mainly influenced by equivalence ratio. Under fuel-rich conditions, the combustion process experiences a thermal runaway and a decay stage. The study also explores the factors affecting the heat release rate peak in detail.
Article
Energy & Fuels
Qiankun Zhang, Jin Xia, Jianping Wang, Zhuoyao He, Yong Qian, Xingcai Lu
Summary: The study aims to explore the spray and combustion characteristics of collision biodiesel and butanol under different collision angles, injection pressures, and ambient conditions. The results show that the spray in the horizontal direction has faster evaporation and diffusion rates compared to the vertical direction. Increasing the ambient temperature has a positive impact on promoting the horizontal diffusion of the vapor-phase spray. At larger collision angles, higher relative velocity leads to a more intense collision process and smaller diffusion rate after the collision. A smaller equivalence ratio after the collision leads to longer ignition delay and shorter flame lift-off length, contributing to a more intense combustion process and higher soot emissions. Increasing the injection pressure can improve the ignition and combustion characteristics, except at larger collision angles where the reduction in soot emissions is suppressed.
Article
Energy & Fuels
Mingchen Xu, Yaojie Tu, Guang Zeng, Wenming Yang
Summary: The study found that the implementation of fuel-rich/lean technology can improve coal ignition by adjusting the primary air supply and significantly affect the coal consumption rate near the burner exit. The adjustment of primary air supply has a greater impact on the coal consumption rate near the burner exit, and different mixing sequences can influence the ignition process and NOx emissions.
Article
Energy & Fuels
Pankaj Ghildiyal, Feiyu Xu, Alex Rojas, Yujie Wang, Mahbub Chowdhury, Prithwish Biswas, Steven Herrera, Reza Abbaschian, Michael R. Zachariah
Summary: In this paper, we investigated the effect of incorporating Mg nanoparticles as additive fuel in B/CuO nanoenergetic composites. The results showed that the reactivity of B/CuO nanoenergetic composites was enhanced by approximately 6 times, with a reduction in burn time of about 60%. The exothermic heterogeneous reactions between vapor-phase Mg and the molten B2O3 shell of boron at 500-650°C were found to induce surface modifications and enhance the reactivity of boron particles.
Article
Thermodynamics
F. A. Williams, V. Nayagam, D. L. Dietrich
Summary: Droplet-combustion experiments conducted on the International Space Station have shown that cool-flame combustion can occur and be sustained after the extinction of a hot flame. The effective ambient atmosphere during this combustion stage may depend on the previous combustion history.
COMBUSTION AND FLAME
(2022)
Article
Thermodynamics
A. A. Boryaev
Summary: The study emphasizes the importance of specific fuel consumption in power motor units for underwater vehicles when using lithium, magnesium, aluminum, or sodium as fuels in hydro-reactive propellants. The use of aluminum-seawater propellant is shown to be the most effective and promising for further development, requiring additional work on the design of combustion chambers and fuel supply system components.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
Article
Thermodynamics
Xueqin Liao, Hui Liu, Jianzhong Liu, Peihui Xu, Longjin Du
Summary: In this paper, the ignition, combustion, and agglomeration processes of GAP/CL-20 composite propellants were studied. Using modern analytical and testing instruments, the researchers observed the ignition and combustion process with a high-speed camera, proposed a multiple flame structure model, and analyzed the agglomeration mechanism based on the pocket model and skeleton layer theory. The particle size distribution, micromorphology, and crystal structure of the condensed phase combustion products were also analyzed, providing valuable reference for the engineering application of GAP/CL-20 propellants.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Nanoscience & Nanotechnology
Jihyun Baek, Yue Jiang, Andrew R. Demko, Alexander R. Jimenez-Thomas, Lauren Vallez, Dongwon Ka, Yan Xia, Xiaolin Zheng
Summary: In this study, the surface of boron particles was chemically functionalized with fluoroalkylsilanes. Among all the samples, the boron particles functionalized with the longest fluorocarbon chain showed the most powerful energetic performance and the highest heat of combustion. This suggests that surface functionalization with fluoroalkylsilanes is an efficient strategy to enhance boron ignition and combustion.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Ricardo Novella, Antonio Garcia, Josep Gomez-Soriano, Alvaro Fogue-Robles
Summary: The current political and environmental concerns have led to strict regulations on conventional propulsion systems using fossil fuels. New technologies are being developed as substitutes, but further research and development are needed. This study evaluates the potential of converting a diesel engine to hydrogen combustion for full load operation, and explores different strategies to improve combustion performance and reduce emissions.
Article
Thermodynamics
N. A. K. Doan, S. Bansude, K. Osawa, Y. Minamoto, T. Lu, J. H. Chen, N. Swaminathan
Summary: The study reveals that in MILD combustion conditions, ignition is the main combustion mode, while in non-premixed conditions, the predominance of the ignition mode depends on the axial location and mixture fraction stratification. Additionally, the various combustion modes are strongly correlated with mixture fraction.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Energy & Fuels
Osama Hmood, Edgar Matida
Summary: The study introduces a method to estimate ignition delay based on temperature measurements and finds that the fuel-air mixture becomes pseudo-homogeneous during long periods of ignition delay, with the charge pressure having a significant effect on the delay.
Article
Instruments & Instrumentation
Rolanas Dauksevicius, Rimvydas Gaidys, Vytautas Ostasevicius, Robert Lockhart, Andres Vasquez Quintero, Nico de Rooij, Danick Briand
SMART MATERIALS AND STRUCTURES
(2019)
Article
Multidisciplinary Sciences
Sami Bolat, Galo Torres Sevilla, Alessio Mancinelli, Evgeniia Gilshtein, Jordi Sastre, Antonio Cabas Vidani, Dominik Bachmann, Ivan Shorubalko, Danick Briand, Ayodhya N. Tiwari, Yaroslav E. Romanyuk
SCIENTIFIC REPORTS
(2020)
Article
Materials Science, Multidisciplinary
Silvia Demuru, Brince Paul Kunnel, Danick Briand
ADVANCED MATERIALS TECHNOLOGIES
(2020)
Article
Materials Science, Multidisciplinary
Brince Paul, Silvia Demuru, Celine Lafaye, Mathieu Saubade, Danick Briand
Summary: This study presents a printed iontophoretic-integrated fluidic sweat patch for on-demand real-time monitoring of sweat in stationary conditions. The system features a multisensing sensor array with high sensitivity to sodium, potassium, and pH, making it suitable for real-time monitoring of individual health status.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Materials Science, Multidisciplinary
Ryan van Dommelen, Rubaiyet Haque, Olivier Chandran, Sebastien Lani, Danick Briand
Summary: This study demonstrates the use of in-situ laser sintering to create conductive silver features within 3D printed structures, showing the importance of transmitted power and sintering time for different shapes of conductive features. The developed method successfully produces flexible conductors and sensors, which could potentially be integrated into cost-effective and customized soft electronic devices.
FLEXIBLE AND PRINTED ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Silvia Demuru, Cheng-Hua Huang, Khaled Parvez, Robyn Worsley, Giorgio Mattana, Benoit Piro, Vincent Noel, Cinzia Casiraghi, Danick Briand
Summary: In this study, fully inkjet-printed graphene-gated organic electrochemical transistors (OECTs) on polymeric foil were demonstrated for the enzymatic-based biosensing of glucose and lactate. The graphene-gated transistors showed improved performance compared to printed silver-gated devices and other types of printed devices previously reported. The optimized sensing method and device configuration enabled the detection of multiple metabolites.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Rubaiyet Iftekharul Haque, Martin Lubej, Danick Briand
Summary: This paper presents the design and development of a coplanar capacitive proximity sensor for the detection of the gap between the edges of dielectric foils. The effects of different physical parameters on the sensor's responses were investigated, and the sensitivity and detection range were optimized.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Multidisciplinary
Silvia Demuru, Jaemin Kim, Marwan El Chazli, Stephen Bruce, Michael Dupertuis, Pierre-Alain Binz, Mathieu Saubade, Celine Lafaye, Danick Briand
Summary: The dysregulation of cortisol is associated with various pathological states, and monitoring cortisol levels can help prevent severe stress, fatigue, and mental illnesses. Existing methods for cortisol detection face challenges due to its low concentration and the high ionic strength of biofluids. However, a label-free and fast sensor based on antibody-coated organic electrochemical transistors has been developed, offering high sensitivity for cortisol detection. This wearable device enables point-of-care cortisol detection in a short amount of time, allowing personalized well-being monitoring.
Article
Multidisciplinary Sciences
Marco R. Binelli, Ryan van Dommelen, Yannick Nagel, Jaemin Kim, Rubaiyet I. Haque, Fergal B. Coulter, Gilberto Siqueira, Andre R. Studart, Danick Briand
Summary: This paper proposes a 3D printing platform for the integrated manufacturing of silicone-based wearable devices with embedded sensors. By fine-tuning the material properties and sensor layout, a customizable shoe insole capable of measuring gait forces during physical activity was successfully fabricated. The developed materials and workflow open up possibilities for a new generation of fully 3D printed soft electronic devices for health monitoring.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Xavier Aeby, James Bourely, Alexandre Poulin, Gilberto Siqueira, Gustav Nystroem, Danick Briand
Summary: This study presents printed capacitive humidity sensors and temperature resistive detectors made from biodegradable materials as an alternative to electronic waste. The sensors and detectors are manufactured using shellac, carbon-derived particles, and egg-albumin. The use of shellac as a substrate proves to be biodegradable and demonstrates faster response and recovery times compared to cellulose-based substrates. The sensors are home compostable and can potentially be used for sustainable smart-packaging, agricultural sensing, or point-of-care testing.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Morgan M. Monroe, L. Guillermo Villanueva, Danick Briand
Summary: The development of fully solution-processed, biodegradable piezoelectrics is crucial for reducing electronic waste and advancing green electronics. A low temperature manufacturing process was developed to produce lead-free printed piezoelectric devices, allowing integration with eco-friendly substrates. The printable ink used for screen printing potassium niobate (KNbO3) piezoelectric layers demonstrated high reproducibility and desirable characteristics, opening the way for fully solution-processed green piezoelectric devices.
MICROSYSTEMS & NANOENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
N. Fumeaux, D. Briand
Summary: Transient electronics provide a solution for reducing electronic waste and for use in implantable bioelectronics. We present a scalable method that combines chemical and photonic mechanisms to sinter printed Zn microparticles. The resulting patterns show high electrical conductivity, enabling the fabrication of biodegradable sensors and LC circuits.
NPJ FLEXIBLE ELECTRONICS
(2023)
Article
Engineering, Biomedical
Shu Wang, Meritxell Rovira, Silvia Demuru, Celine Lafaye, Jaemin Kim, Brince Paul Kunnel, Cyril Besson, Cesar Fernandez-Sanchez, Francisco Serra-Graells, Josep Maria Margarit-Taule, Joan Aymerich, Javier Cuenca, Ilya Kiselev, Vincent Gremeaux, Mathieu Saubade, Cecilia Jimenez-Jorquera, Danick Briand, Shih-Chii Liu
Summary: Biomarkers in sweat can be used to evaluate the physiological conditions of athletes. This study presents a wearable sweat biomonitoring patch that can record and predict physiological biomarkers in real-time, showing promising applications for athletes performing endurance exercise.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Rubaiyet Haque, Affan K. Waafi, Kim Jaemin, Danick Briand, Anpan Han
Summary: This article presents the design and development of a cryogenic system for ice lithography. The system features embedded channels for direct liquid nitrogen flow, allowing for fast cooling and low sample temperature. Compared to previous designs, the new system significantly reduces cooling time and achieves a lower temperature, increasing efficiency. The lower stage temperature also enables the exploration of new precursors, materials, and applications, as demonstrated by combining ice lithography with printed flexible electronics technology.
MICRO AND NANO ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Alessio Mancinelli, Sami Bolat, Jaemin Kim, Yaroslav E. Romanyuk, Danick Briand
ACS APPLIED ELECTRONIC MATERIALS
(2020)
