Keynote Speakers 

Qifei Du, Tiangong University, China

Title: Analysis of the Thermal Behavior of a Lithium Cell Undergoing Thermal Runaway
This study examines the thermal runaway of a lithium ion battery caused by poor heat dissipation performances. The heat transfer process is analyzed on the basis of standard theoretical concepts. Water mist additives are considered as a tool to suppress the thermal runaway process. The ensuing behaviour of the battery in terms of surface temperature and heat generation is analyzed for different charge and discharge rates. It is found that when the remaining charge is 100%, the heat generation rate of the battery is the lowest, and the surface temperature with a 2C charge rate is higher than that obtained for a 0.5C charge rate. The experimental results show that when the additive concentration is 20% NaCl, its ability to inhibit the thermal runaway is the strongest.

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Jianghao Niu, Civil Aviation University of China, China

Title: CFD Analysis of the Influence of Ionic Liquids on the Performances of a Refrigeration System

The falling film of an ionic liquid ([EMIM] [DMP] + H2O) and its effect on a refrigeration system are numerically simulated in the framework of a Volume of Fluid (VOF) method (as available in the ANSYS Fluent computational platform). The properties of the liquid film and the wall shear stress (WSS) are compared with those obtained for a potassium bromide solution. Different working conditions are considered. It is noted that the ionic liquid demonstrates a better absorption capability, with a coefficient of performance (COP) of 0.55. It is proved that the [EMIM] [DMP] + H2O ionic liquid working substance is superior to the potassium bromide solution in terms of heat and mass transfer.

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Yajuan Jia, Xi’an Traffic Engineering Institute, China

Title: CFD Analysis of Fluid-dynamic and Heat Transfer Effects Generated by a Fixed Electricity Transmission Line interacting with an External Wind

The flow past a fixed single transmission conductor and the related heat transfer characteristics are investigated using computational fluid dynamics and a relevant turbulence model. After validating the method through comparison with relevant results in the literature, this thermofluid-dynamic problem is addressed considering different working conditions. It is shown that the resistance coefficient depends on the Reynolds number. As expected, the Nusselt number is also affected by Reynolds number. In particular, the Nusselt number under constant heat flux is always greater than that under a constant wall temperature.

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Dongming Li, Shandong University of Science and Technology, China

Research Fields
Fluid power, hydraulic system, mechatronics and robotics
Brief Introduction
He graduated from Jilin University of Technology in 1997, received his Master degree in Agricultural Engineering from Shandong Agricultural University in 2006, and received his Ph.D. degree in Mechanical Engineering from Shandong University of Science and Technology in 2009. Main Works: Simulation and measurement of fuel injection quantity based on TB4P, Journal of Robotics and Mechatronics, Vol.26, n1, pp.34-39, 2014. MDPRE Solution for drilling rig sticking, International Journal of Automation Technology, Vol.10, n5, pp.827-834, 2016.

 

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