Font Size: a A A

Analysis Of Combustibility Of Staple Decorate Or Fitment Lathy Timber

Posted on:2012-06-26Degree:MasterType:Thesis
Country:ChinaCandidate:L J ZhangFull Text:PDF
GTID:2132330332491395Subject:Safety Technology and Engineering
Abstract/Summary:PDF Full Text Request
With the economic development of our country and the improvement of people's cultural life level, people require more and more for the environment of living, studying and Entertainment. It has become a kind of social trends that they pursue the indoor environment which is elegant, beautiful, comfortable and clean. From the shops and markets to hotels, restaurants, KTV,bars and family dwelling, almost all of the buildings are decorated using materials, and the decoration becomes more expensive, luxury and brilliant. In recent years,wooden board are widely used in the process of indoor fitment and furniture making, for its advantages of natural, texture and insulated.As a result, the fire load is increased in some ways, which has a great effect on the occurrence and development of compartment fire. So it causes for fire hazards to buildings'fire safety. Therefore, it has more meaning to research the burning performance of common decorating materials. So the correct evaluation of the burning performance of common decorating materials plays a very important role in the evaluation of a building' fire danger and safety design.CONE which is used as a small experiment equipment, is more similar to the real fire environment, compared with traditional experimental methods. It's experimental statistics is well pertinent to huge experiment. It is based on the principle of consumption of oxygen, that is, flammable materials release the same heat when they consume per unit of oxygen. In this particle, we choose solid wooden boards, multilayer boards, high intensity boards, middling intensity boards to do the experiment. And the analysis of lathy timber is based on heat release rate, smoke production rate, CO/CO2 production rate, and similar parameters, which is tested by CONE. Their relative combustibility is compared under same heat radiant intensity, and the effect of heat radiant intensity to each combustion parameters is studied.The results point out that, under the heat radiant intensity of 35 kW/m2, the parameters such as heat release rate, smoke production rate,mass loss rate and CO/CO2 production rate of the solid wooden boards are all superior to others, thus the solid wooden boards has a small combustible risk by general assessment of the achieved parameters;under different heat radiant intensity (25 kW/m2,35 kW/m2,50 kW/m2), we research the relationship between the change of heat release rate, smoke production rate, mass loss rate, and CO/CO2 production rate revels with heat radiation flux. It is found that, as the increasing of the heat radiant intensity, not only the change of heat release rate, smoke production rate, mass loss rate, and CO/CO2 production rate revels are increasing, but also the time of every curve's peak appearing is advanced. While considering the influence of heat radiant intensity on ignition time, We find that ignition's average squared radix has a linear relationship with heat radiation flux, and the similar rate of the equation go beyond 0.97.
Keywords/Search Tags:lathy timber, CONE, combustibility, combustion parameter
PDF Full Text Request
Related items