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Feng C.-M.,Sun Yat Sen University | Zhang Y.,Sun Yat Sen University | Lang D.,Guangdong Provincial Key Laboratory of Fire Science and Technology | Liu S.-W.,Sun Yat Sen University | And 2 more authors.
Procedia Engineering | Year: 2013

A novel intumescent flame retardant was incorporated into polypropylene to prepare novel intumescent flame retardant composites (PP/IFR) with good flame retardant properties. The flame retardant mechanism was investigated by means of Laser Raman spectroscopy (LRS), X-ray photoelectron spectroscopy (XPS), Thermogravimetric analysis/infrared spectrometry (TGA-IR), Fourier Transform infrared spectroscopy (FTIR) and Energy Dispersive Spectrometer (EDS). It was found that the IFR could decrease the degradation rate of PP; the formed intumescent char was containing unorganized carbon structure and graphitic structure, and consisting of P, N, O and C elements. FTIR analysis showed that the network with P-O-P and P-O-C were formed. EDS analysis results revealed that some P elements were connected to the polyaromatic rings and could form huge connected network. © 2013 The Authors. Published by Elsevier Ltd. Source


Yao H.-W.,Sun Yat Sen University | Yao H.-W.,Guangdong Provincial Key Laboratory of Fire Science and Technology
Procedia Engineering | Year: 2013

This article gives an introduction on the development of fire science and fire protection engineering in China, and a brief on the conference. © 2013 The Authors. Published by Elsevier Ltd. Source


Zhao Z.,Guangdong University of Technology | Liang D.,Guangdong Provincial Key Laboratory of Fire Science and Technology
Procedia Engineering | Year: 2016

An explosion fire occurred in a factory plant which three people are killed. A preliminary site survey concluded that a certain concentration of n-Heptane ignited by electrical work and then deflagration happened. To verify the survey conclusions the numerical reconstruction method is used, and the evaporation and distribution of n-Heptane in plant is calculated. The simulation results show that the concentration of n-Heptane is in the range of explosive limit which instructs the numerical reconstruction can give a technical support for disaster investigation. Source


Chen Y.Q.,Sun Yat Sen University | Chen Y.Q.,Guangdong Provincial Key Laboratory of Fire Science and Technology | Yu H.Z.,China Earthquake Networks Center | Zhu Q.Y.,Sun Yat Sen University | Zhu Q.Y.,Guangdong Provincial Key Laboratory of Fire Science and Technology
International Journal of Heat and Mass Transfer | Year: 2016

The unsteady double-diffusive natural convection flow in a rectangular enclosure filled with soft rocks which are subjected to humid air, including water vapor absorption and thermoelasticity, is studied numerically. The high order compact finite difference schemes are adopted for better simulation of this problem, and a Darcy-Brinkman-Forchheimer extended model combined with the absorption and thermoelasticity effects is introduced. The effects of the thermal and solutal Rayleigh numbers, hygroscopicity, Darcy numbers and thermoelasticity on the flow are investigated in detail. Results are presented in the form of streamlines and isolines of temperature and mass fraction as well as the plots of average Nusselt and Sherwood numbers over the walls under different conditions. The flow structure develops from conduction-dominated to steady convection-dominated as increasing Rayleigh number or increasing buoyancy ratio as well as increasing Darcy numbers. The thermoelasticity effects of soft rocks play an important role in the analysis of thermal convection flow by the change of temperature and permeability, while the water vapor absorption effects may have a slight effect on the flow in the beginning and vanish with the absorption effects becoming weak. Nevertheless, the effect may significant reduce the mechanical strength properties of soft rocks. © 2016 Elsevier Ltd. All rights reserved. Source


Huang L.-J.,Sun Yat Sen University | Huang L.-J.,Guangdong Provincial Key Laboratory of Fire Science and Technology | Liang D.,Sun Yat Sen University | Liang D.,Guangdong Provincial Key Laboratory of Fire Science and Technology
Procedia Engineering | Year: 2013

Safety regulation and management in China is reviewed. The review provides insight into the regulation, standards and management practice adopted, and it identifies trends and needs for improvement in China. The research finds that China is actively improving its safety regulation system by revising laws and standards, and entitling regulatory organizations with new functions; at the same time, more companies in China are aware of the importance of safety management and accreditation. At the current stage, the legal systems in China are effective in terms of improving awareness of and investment in safety management. However, there is a long way to go before effective safety management system implementation and mature safety culture in place. From the experience of safety legislation and management in Australia, we find that safety culture and implementation are essential to the healthy development of energy industry. We conclude that safety regulation and management would benefit greatly from guidance on how to form safety management system and cultivate safety culture, as well as from the further development of feasible performance measures. © 2013 The Authors. Published by Elsevier Ltd. Source

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