Prediction of Minimum Water Amount to Stop Thermal Decomposition of Forest Fuel

Nakoryakov V. E.; Kuznetsov G. V.; Strizhak P. A.

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Prediction of Minimum Water Amount to Stop Thermal Decomposition of Forest Fuel

机译：预测最小水量，停止森林燃料的热分解

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Presented are results of experimental studies of the heat transfer processes in suppression of thermal decomposition of typical forest fuels (FFs) (spruce needles, birch leaves, aspen twigs, or amixture thereof) due to the effect of aerosol water flow (drop radii: 0.01-0.12 mm; concentration: 3..10(-5) m(3) drop/m(3) of gas). The experiments have been carried out with FF samples in the form of cylinders of a thickness of 40-100 mm and a diameter of 20-150 mm. The times required to stop the thermal decomposition of FF have been found, as well as amounts of water necessary to lower in a given time the temperature in a layer of material to the point of decomposition beginning. A dimensionless complex has been derived for prediction of water spraying parameters (amount and time of supply) that ensure sustainable termination of FF decomposition within a specified time interval.

机译：本文介绍了由于气溶胶水流（滴半径：0.01-0.12mm；浓度：3..10（-5）m（3）滴/m（3）气体）的影响，抑制典型森林燃料（FFs）（云杉针、桦树叶、白杨枝或其混合物）热分解的传热过程的实验研究结果。用厚度为40-100 mm、直径为20-150 mm的圆柱体形式的FF样品进行了实验。已经找到了停止FF热分解所需的时间，以及在给定时间内降低材料层温度至分解开始点所需的水量。推导了一个无量纲复合体，用于预测喷水参数（供应量和时间），以确保在指定时间间隔内可持续终止FF分解。

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来源
《Journal of engineering thermophysics》 |2017年第2期|共7页
作者
Nakoryakov V. E.; Kuznetsov G. V.; Strizhak P. A.;
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作者单位

Russian Acad Sci Siberian Branch Kutateladze Inst Thermophys Pr Akad Lavrenteva 1 Novosibirsk 630090 Russia;

Natl Res Tomsk Polytech Univ Pr Lenina 30 Tomsk 634050 Russia;

Natl Res Tomsk Polytech Univ Pr Lenina 30 Tomsk 634050 Russia;

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正文语种 eng
中图分类热力工程、热机;
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Prediction of Minimum Water Amount to Stop Thermal Decomposition of Forest Fuel

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