In this context, we establish the fire extinguishing calculation model based on the combustion dynamics, fire physics and fire chemistry to simulate the process of the foam spraying fire extinguishing. Derive the fire extinguishing coefficient from small fire extinguishing test, verify the accuracy and reliability of the model by exhaustive fire extinguishing test. Guide to optimize the design of the actual fire extinguishing system. Reduce the test cost and pollution of the environment caused by the fire extinguishing test.

a School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China b Fire Science and Technology Laboratory, CSIRO, Manufacturing and Materials Technology, Highett, Victoria, Australia c Shanghai Fire Research Institute of Public Security Ministry of China, Shanghai, China d State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, China

Now the running stability indexes for car and train have a big weighted coefficient for the sensitive frequencies of human being, and this is not suitable for fire robot as it has no passenger, and in this paper, a new running stability index which based on acceleration and frequency has been set up, And in the running stability index, sensitive frequencies for mechanical fault have been paid more attention, the vibration spectrum divide into three parts, which are dominant frequency and primary harmonic and tiny harmonics caused by transmission, each of the part signal characterize the running information of engine and transmission. A set of method for measuring the vibration of robot has been proposed. And according to several experiment results a new divided grades of operation quality based on the running stability index has been found for judging healthy condition of the robot.

Fire behaviour of a vinyl based lining material with and without anti-corrosion painting has been evaluated through 35 and 50 kW/m(2) cone calorimeter tests. The minimum heat flux requited for surface ignition was estimated. The data were compared by those provided by a revised Kokkala-Thomas's classification index prediction model, the Ostman-Tsantaridis empirical linear regression model, and the Hansen-Hovde multiple discriminant function analysis. All results collected allowed to predict the material flashover time and to classify the lining material. The results illustrate some differences in the classification of the material due to different approaches of the models used.

A fire robot always bears high impact load due to the abominable fire environment and fatigue stress;therefore it is difficult to assess its operation quality,affecting its fire fighting operation and causing serious consequences.The vibration of the fire robot reveals its operation conditions and life.The paper discusses the operation quality of a fire robot and analyzes the kinetic energy and displacement caused by vibration because they have great influence on its life.It also sets up a platform for experiments on robot vibration to acquire the vibration acceleration signals and then analyze and process them through the Fourier transform and the wavelet filtering.To show the vibration of the fire robot and grade its operation quality,we use the channel accumulation algorithm to obtain the Sperling indexes.In the end,we propose our fire robot operation quality grading method so as to judge the health conditions of the fire robot and decide whether it should be in service or not.

Water mist suppression tests for glass-reinforced polyester (GRP) panels were conducted in ISO 9705 room. GRP panels covered part of the room and a wood crib fire was used as fire source to ignite GRP fire. A four-nozzle water mist suppression equipment was used inside test room on the time of flashover. Heat release rate of the combustion inside the room, room temperature, surface temperature of GRP panels, total heat flux to wall, ceiling and floor in specific positions were measured. Gas concentration of O2, CO, and CO2 was also measured in the corner of the room at two different levels. A thermal image video was used to record the suppression procedure inside room. Test results show that the water mist system is efficient in suppressing the flashover of GRP fire and cooling the room within short time.

A serials test of crib fire conducted in a bench scale compartment. Total heat flux to the wall is measured by Schmidt-bolter gages in upper zone and lower zone of the compartment. The heat flux intensity and distribution of these quasi-steady crib fires is evaluated through these tests. The peak value and integral of the measured total heat flux is scaled with exposed surface area of wood cribs. Linear relations of these scaled value with the mass and exposure surface area of wood cribs are obtained. The ratio of scale value in upper and lower zone is also presented which could be used as model in estimating thermal load to side wall for bench scale tests.

The fire hose's pressure loss research is divided into two parts.The one is research of on-way resistance and the other is of local resistance,including bending resistance and coupling resistance.Research is mainly carried out for the influences on the fire hose's pressure loss,such as:on-way resistance coefficient, roughness,local resistance coefficient,hose pressure,hose diameter,flow and soon.By the analysis on these influencing factors and according to a large amount of experiments results,calculation formulas are simplified,then reduced formula and correlated diagram are given out.

In this paper, theoretical analysis is combined with the self extinguishing experiments of motor spirit, ethanol motor spirit and fire-extinguishing contrast tests. According to the curves of temperature and oxygen concentration, the extinguishing difficulty of polycomponent water mist against ethanol motor spirit fire is analyzed. Comparing with the fire hazard of motor spirit, polycomponent water mist's extinguishing efficiency against ethanol and ethanol motor spirit fire is discussed.

分析了消防员用于火场排烟的几种移动式排烟装备的性能和特点,着重对利用消防压力水源在火场中进行排烟的几种典型的应用形式进行了阐述,分别对几种形式的应用技术进行了分析研究.

Summarizes the influence of water mist in which the additives were appended on the suppression efficiency in the open space relatively. By the small-scale model experiments, extinguishing ability of several additives contrasted fine water mist when they were used to extinguish and suppress the diesel fuel fires and the gasoline fires. The experiments indicate extinguishing ability is improved particularly after the additives were appended in the open space.

Summarizes the necessity of developing water mist for the use in the vessele. The fire-extinguishing test using water mist was conducted in compliance with MSC/Circ.913.The feasibility of developing low-pressure water mist suppression system was proved.