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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Calculated Carbon Aromaticity Index ： ウィキペディア英語版 Calculated Carbon Aromaticity Index The calculated carbon aromaticity index (CCAI) is an index of the ignition quality of residual fuel oil. The running of all internal combustion engines is dependent on the ignition quality of the fuel. For spark-ignition engines the fuel has an octane rating. For diesel engines it depends on the type of fuel, for distillate fuels the cetane numbers are used. Cetane numbers are tested using a special test engine and the existing engine was not made for residual fuels. For residual fuel oil two other empirical indexes are used: CCAI and Calculated Ignition Index (CII). Both CCAI and CII are calculated from the density and kinematic viscosity of the fuel. ==Definition== Formula for CCAI: $CCAI=D-140.7\; \backslash log\; (\backslash log\; (V+0.85))-80.6-210\; \backslash ln\; \backslash left\; (\backslash frac\; \backslash right\; )$ which is equivalent to: $CCAI=D-140.7\; \backslash log\; (\backslash log\; (V+0.85))-80.6-483.5\; \backslash log\; \backslash left\; (\backslash frac\; \backslash right\; )$ Where: D= density at 15°C (kg/m3) V= viscosity (cST) t = viscosity temperature (°C) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Calculated Carbon Aromaticity Index」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.