Reaction thermal runaway has been extensively characterized as a major hazard for fine chemical industry.It is necessary to develop safety technologies for the control of reaction thermal runaway in emergencies and mi...Reaction thermal runaway has been extensively characterized as a major hazard for fine chemical industry.It is necessary to develop safety technologies for the control of reaction thermal runaway in emergencies and mitigating the subsequent hazards.To date,literature review on the loss prevention methods of chemical reaction thermal runaway is insufficient.In this paper,a comprehensive review is delivered to outline the progress of emergency response technologies for reaction thermal runaway in recent years,major principles and potential applications of those loss prevention methods.It is expected that this review article has certain reference value for the further understanding of thermal runaway,the design of mitigation systems,and the formulation of emergency response strategy for runaway reactions.展开更多
With water mist regarded as a promising fireextinguishing agent in spacecraft,it is necessary to investigate characteristics of water mist in microgravity.In this paper,FDS 6.0 is used to measure the centerline veloci...With water mist regarded as a promising fireextinguishing agent in spacecraft,it is necessary to investigate characteristics of water mist in microgravity.In this paper,FDS 6.0 is used to measure the centerline velocity of water mist with various initial velocities and the spray distance.The droplets will approach their terminal velocity after leaving the nozzle in normal-gravity,which agrees with the theoretical calculation.The velocity of water mist declines in microgravity.The polynomials of the velocity change are given in microgravity,which makes it possible to obtain the velocity with the spray distance increase when arbitrary initial velocity is given.展开更多
基金the financial support from the Suzhou science and technology innovation project of social development(SS202153)Innovation training program for college students of Changshu Institute of Technology.
文摘Reaction thermal runaway has been extensively characterized as a major hazard for fine chemical industry.It is necessary to develop safety technologies for the control of reaction thermal runaway in emergencies and mitigating the subsequent hazards.To date,literature review on the loss prevention methods of chemical reaction thermal runaway is insufficient.In this paper,a comprehensive review is delivered to outline the progress of emergency response technologies for reaction thermal runaway in recent years,major principles and potential applications of those loss prevention methods.It is expected that this review article has certain reference value for the further understanding of thermal runaway,the design of mitigation systems,and the formulation of emergency response strategy for runaway reactions.
基金supported by the National Natural Science Foundation of China(51276176)
文摘With water mist regarded as a promising fireextinguishing agent in spacecraft,it is necessary to investigate characteristics of water mist in microgravity.In this paper,FDS 6.0 is used to measure the centerline velocity of water mist with various initial velocities and the spray distance.The droplets will approach their terminal velocity after leaving the nozzle in normal-gravity,which agrees with the theoretical calculation.The velocity of water mist declines in microgravity.The polynomials of the velocity change are given in microgravity,which makes it possible to obtain the velocity with the spray distance increase when arbitrary initial velocity is given.
