Article
Engineering, Chemical
Deqing Mei, Yu Fang, Derick Adu-Mensah, Weiyi Cai, Yinnan Yuan
Summary: By combining experiment and simulation, the spray characteristics of CeO2 nano-fuels and diesel were investigated. Nano-fuels show different spray characteristics compared to diesel, with longer penetration distance, smaller cone angle, and larger SMD. The differences between nano-fuel and diesel spray characteristics increase with the increase of mass concentration. The injection pressure, ambient pressure, and mass concentration all have effects on spray characteristics, with injection pressure having the greatest impact.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Thermodynamics
Muteeb ul Haq, Ali Turab Jafry, Saad Ahmad, Taqi Ahmad Cheema, Muhammad Kamran, Huma Ajab, Haji Hassan Masjuki
Summary: This study investigates the effect of butanol and 1-butoxybutane on castor biodiesel and analyzes the spray performance. The results show that the quaternary blend with 10% butanol and 1-butoxybutane has the closest spray performance to diesel, and it also exhibits better fuel consumption and thermal efficiency.
Article
Energy & Fuels
Dong Di, Yajun Wang, Yunpeng Liu, Yingwen Yan
Summary: An innovative fan nozzle was designed to improve the ignition and cross-flame performance of an integrated afterburner. The spray characteristics of the fan nozzle in the afterburner environment were studied using a laser particle analyzer and a high-speed camera. The results showed that pump pressure and inlet air parameters had an impact on Sauter mean diameter distribution, penetration depth, and atomization angle. The fan nozzle was found to be more suitable for ignition and cross-flame in the afterburner cavity than direct injection nozzles.
Review
Energy & Fuels
Muteeb Ul Haq, Ali Turab Jafry, Saad Ahmad, Taqi Ahmad Cheema, Munib Qasim Ansari, Naseem Abbas
Summary: Spray characteristics are crucial for the performance and emissions of compression ignition engines. This study investigates the impact of fuel properties and injection conditions on spray characteristics. Higher injection pressures result in longer penetration lengths, better atomization, and reduced mean diameter. Liquid properties and structural properties play vital roles in the spray formation of fuel blends.
Article
Energy & Fuels
Muteeb ul Haq, Ali Turab Jafry, Muhammad Salman Abbasi, Muhammad Jawad, Saad Ahmad, Taqi Ahmad Cheema, Naseem Abbas
Summary: Fuel spray characteristics have a significant impact on engine performance and emissions. This study investigates the spray behavior of castor and jatropha biodiesel using numerical and experimental methods. The results show that the KHRT and TAB models provide better estimations of the spray penetration length and spray cone angle.
Article
Engineering, Electrical & Electronic
Yarui Ma, Jiwen Cui, Jiubin Tan
Summary: This paper studied the influence of slight impact angle deviation on the atomization performance of colliding atomizers, and quantitatively analyzed the relationship between collision-angle deviation and atomization performance. The experimental results showed that increasing the collision angle led to changes in atomization performance, while within a certain range of angle deviation, the particle size distribution remained relatively stable.
Article
Thermodynamics
Pengfei Fu, Quanbin Zhao, Jiping Liu, Daotong Chong, Junjie Yan
Summary: The study used an innovative experimental design to investigate the characteristic microstructure at the steam-water interface of a water-submerged steam jet. It analyzed the periodic evolution of large-scale two-phase coherent entrainment vortexes in the turbulent mixing layers, as well as the growth law of vortexes and the distribution of mixing layer thickness. The predicted average scale of vortex blob showed good agreement with experimental data.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Plant Sciences
Shiqun Dai, Mingxiong Ou, Wentao Du, Xuejun Yang, Xiang Dong, Li Jiang, Tie Zhang, Suming Ding, Weidong Jia
Summary: Air-assisted spraying technology is used in orchard sprayers to increase spray penetration and reduce droplet drift by disturbing canopy leaves and forcing droplets into the plant. In this study, a low-flow air-assisted sprayer with a self-designed nozzle was developed, and its effectiveness was tested in a vineyard. The optimal working conditions for the sprayer were determined, and the deposit coverage, spray penetration, and deposit distribution were evaluated.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Engineering, Environmental
Kuibin Zhou, Mengya Zhou, Mengyuan Huang, Yifan Wang
Summary: This paper presents a systematic investigation on the jet fire in a pit, including the variations of gas entrainment mode and flame behavior. A dimensionless heat release rate coupling the pit geometrical property is developed to correlate the flame area and length, which is validated by experimental data. Models for predicting the thermal radiation of the jet fire are proposed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Environmental
Kuibin Zhou, Mengya Zhou, Mengyuan Huang, Yifan Wang
Summary: This paper systematically investigates jet fire in a pit (JFP) caused by the explosion of underground pipelines. The study observes different types of flames and develops correlations for flame length and width in various pits, as well as proposes models to predict thermal radiation. The research indicates that flame buoyancy becomes more significant than nozzle exit momentum as the nozzle exit velocity increases, leading to the evolution of JFP behavior.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Thermodynamics
Yin Bifeng, Ye Ze, Jia Hekun, Yu Shenghao, Deng Weixin
Summary: This study used Mie-scattering imaging to investigate the liquid phase characteristics of biodiesel and diesel discharged from different injection conditions. The results showed that biodiesel had a longer liquid penetration length than diesel under the same injection conditions, and increasing chamber pressure and temperature affected the liquid phase breakup process. Moreover, the use of an equilateral triangular orifice showed potential for improving air-fuel mixing.
JOURNAL OF THERMAL SCIENCE
(2022)
Article
Energy & Fuels
Lu-Hao Liu, Yi-Fan Han, Shao-Qing Zhang, Qing-Fei Fu
Summary: This article investigates the spray and self-oscillation characteristics of liquid sheets generated by gas-centered coaxial injectors. The results show that the gaseous flow has an impact on the breakup length of the liquid sheet, and the spray angle increases with larger recess ratios. There is a low oscillation frequency at which the self-oscillation phenomenon is activated. Smaller gaseous core sizes and shorter recess lengths promote self-oscillation. The required liquid flow rate for self-oscillation can be increased by increasing the gaseous flow rate, while the self-oscillation frequency remains constant.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Engineering, Geological
Yu-Chen Lu, Li-Wei Liu, Sara Khoshnevisan, Chih-Sheng Ku, C. Hsein Juang, Shi-Hao Xiao
Summary: The traditional approach to developing an SPT-CPT correlation is based on regression analysis, while this paper proposes a new approach that starts with a baseline equation derived from existing models and adjusts it using collected data. The new approach is found on Bayes' theorem and has the potential for developing similar geotechnical correlations.
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2023)
Article
Energy & Fuels
Zhijun Wu, Wei Xie, Yang Yu, Liguang Li, Jun Deng
Summary: Water injection technology is crucial for solving knocking issues in internal combustion engines, with potential to improve atomization quality, formation of fuel-air mixture, and combustion without costly engine modifications. Research on spray development of gasoline and water-in-gasoline mixtures revealed changes in spray characteristics as temperature increased, impacting spray penetration, cone angle, area, energy for atomization, and particle size distribution.
Article
Mechanics
Shirin Patil, Srikrishna Sahu
Summary: This paper investigates the breakup mechanism of a liquid jet injected transversely in a model airblast injector due to swirling cross-stream flow of air. The study focuses on the differences in jet atomization with and without air swirl within the injector. The Optical Connectivity (OC) technique is used for multi-directional imaging of the liquid jet core, allowing simultaneous visualization from different perspectives. The results highlight the significant influence of air swirl on the jet breakup morphology and primary breakup parameters. The findings provide new insight into the physics of primary atomization within an atomizer and contribute to a better understanding of the process.
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
(2023)
Article
Energy & Fuels
Subhash Lahane, K. A. Subramanian
Article
Thermodynamics
Subhash Lahane, K. A. Subramanian
APPLIED THERMAL ENGINEERING
(2014)
Article
Green & Sustainable Science & Technology
Sharad P. Jagtap, Anand N. Pawar, Subhash Lahane
Article
Environmental Studies
Sharad P. Jagtap, Anand N. Pawar, Subhash Lahane
Summary: This study analyzed the combustion characteristics of biodiesel blend fuels in conventional and modified engines, finding that the use of biodiesel blends can reduce ignition delay and maximum pressure rise rate.
INTERNATIONAL JOURNAL OF ENVIRONMENT AND SUSTAINABLE DEVELOPMENT
(2022)
Article
Thermodynamics
Prashant Wasudeo Deshmukh, Subhash Lahane
Summary: In this study, curved ribs of different cross-sections were fitted at the inner wall of the circular tube to enhance convection heat transfer. The numerical results showed that the heat transfer enhancement of the curved ribs was 2.75 times that of the smooth tube flow, with Reynolds numbers ranging from 10,000 to 50,000. Furthermore, the thermohydraulic performance evaluation factor analysis indicated that the average heat transfer enhancement was 120% to 450% at the same pumping power and available surface area for heat dissipation.
HEAT TRANSFER ENGINEERING
(2023)
Article
Engineering, Mechanical
Subhash Lahane, P. W. Deshmukh, Yogesh Sapkal
Summary: The addition of aluminium oxide (Al2O3) and cerium oxide (CeO2) nanoparticles in Jatropha biodiesel (B20) improves combustion, performance, and emission characteristics, leading to increased brake thermal efficiency and reduced emissions.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Engineering, Aerospace
Prashant Deshmukh, Subhash Lahane, Hari Sumant, Abhishek D. Patange, Sakthivel Gnanasekaran
Summary: Enhancing heat transfer using curved ribs of different cross sections is crucial for designing heat-exchanging devices, and predicting their thermohydraulic performance using machine learning is vital. An experimental study on using curved ribs for heat transfer enhancement in a circular tube was conducted, and machine learning was used to predict the thermohydraulic performance. The square cross-sectioned curved ribs showed the highest performance factor, and an artificial neural network model accurately predicted the heat transfer performance indicators.
Article
Thermodynamics
Subhas Lahane, P. W. Deshmukh, Manoj Nagade
Summary: With the rapid advancement in microscale electronics, efficient heat dissipation methods are crucial for the performance and safety of devices due to the undesirable internal heat generation and tiny shapes. Jet impingement cooling, a popular method for heat removal, was experimentally studied in this research using a mixture of water and ethylene glycol. The results showed that blending ethylene glycol with water significantly enhanced the convective heat transfer coefficient, with the optimal concentration being 50%. Higher concentrations reduced mechanical stability and increased pumping power due to increased viscosity.
JOURNAL OF THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Sharad P. Jagtap, Anand N. Pawar, Subhash Lahane
Summary: The study found that the application of biodiesel in diesel engines can reduce emission pollutants but can lower brake thermal efficiency; while ethanol-biodiesel blend fuel can reduce emissions and partially increase combustion efficiency.
INTERNATIONAL JOURNAL OF HEAT AND TECHNOLOGY
(2021)
Proceedings Paper
Engineering, Manufacturing
Ram Thakar, Santosh Bhosle, Subhash Lahane
ADVANCES IN MATERIALS AND MANUFACTURING ENGINEERING, ICAMME 2019
(2020)
Proceedings Paper
Computer Science, Artificial Intelligence
V. Baisane, N. Patil, S. Lahane, R. Pawade, P. Brahmankar
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATION AND SIGNAL PROCESSING 2016 (ICCASP 2016)
(2017)
Proceedings Paper
Engineering, Multidisciplinary
Nitin M. Sakhare, Pankaj S. Shelke, Subhash Lahane
1ST GLOBAL COLLOQUIUM ON RECENT ADVANCEMENTS AND EFFECTUAL RESEARCHES IN ENGINEERING, SCIENCE AND TECHNOLOGY - RAEREST 2016
(2016)
Proceedings Paper
Engineering, Multidisciplinary
Pankaj S. Shelke, Nitin M. Sakhare, Subhash Lahane
1ST GLOBAL COLLOQUIUM ON RECENT ADVANCEMENTS AND EFFECTUAL RESEARCHES IN ENGINEERING, SCIENCE AND TECHNOLOGY - RAEREST 2016
(2016)
Proceedings Paper
Engineering, Multidisciplinary
Syed Yaser Hussaini, Subhash Lahane, N. G. Patil
1ST GLOBAL COLLOQUIUM ON RECENT ADVANCEMENTS AND EFFECTUAL RESEARCHES IN ENGINEERING, SCIENCE AND TECHNOLOGY - RAEREST 2016
(2016)
Proceedings Paper
Engineering, Multidisciplinary
Sachin M. Agrawal, Subhash Lahane, N. G. Patil, P. K. Brahmankar
12TH GLOBAL CONGRESS ON MANUFACTURING AND MANAGEMENT (GCMM - 2014)
(2014)
