Burning Temperatures of Grasslands in Japan : II. Ignition and combustion-heat of fuel

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  • 本邦草地における火入れ温度の測定 : 第2報 燃料の着火および燃焼熱量
  • 燃料の着火および燃焼熱量
  • ネンリョウ ノ チャッカ オヨビ ネンショウ ネツリョウ

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1. Study was made on the ignitability in the electric furnace, of each organ in live state and in dead state of Zoysia, Miscanthus and Sasa. No flame ignition occured at about 350℃, and burning with flame started at 400-600℃ for every sample. In the extent of about 350-800℃ of temperature, the relation of approximately T^<3.7>t=K (K=constant: ignition index) existed between the temperature (T℃) at which the sample took to flame and the time (t sec) required in ignition. The ignition index is the value which shows the relative difficulty of combustion, which is depended upon both the water content in samples and the relative difficulty of the evaporation of water from samples. 2. As the result of the study of combustion-heat of fuel sample in each grassland, using the self-sealing bomb calorimeter, each fuel sample had the combustion-heat of 4300-4600 calories per one gram, and there was scarcely any difference due to the kind of fuel.

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