国産2MW風力発電機の二酸化炭素排出原単位の評価(<特集>第14回動力・エネルギー技術シンポジウム)

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タイトル別名
  • The Evaluation of LC-CO_2 Basic Unit of 2MW Domestic Wind Turbines(<Special Issue>The 14th National Symposium on Power and Energy System)
  • 国産2MW風力発電機の二酸化炭素排出原単位の評価
  • コクサン 2MW フウリョク ハツデンキ ノ ニサンカ タンソ ハイシュツ ゲン タンイ ノ ヒョウカ

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Wind turbines generate sustainable energy, however CO_2 is emitted during the various processes in the life cycle of a wind turbine. Therefore, it is important to take into account the latest data of the environmental impact in addition to applying megawatt scale wind turbines by the method of LCA. In this study, recent CO_2 basic unit (g-CO_2/kWh) was calculated under the conditions of that the life time of turbines is set to be 20 years and the life cycle includes manufacturing, construction, transportation and operation processes. The recalculation result of the domestic 2MW wind turbine constructed in Choshi area shows 10.8g-CO_2/kWh and 13.5g-CO_2/kWh under the conditions of average wind speed=6m/s, CO_2 emission rate of operation and maintenance=1.0%/year, the loss of transmission grid etc=5% in its life cycle. The important points of electricity produced by wind turbines are finding locations with good wind supply and application of large scale wind turbines. And the "product category rule" should be established for the standardized calculation of the Japanese CO_2 basic unit (g-CO_2/kWh) of the wind generator.

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