家庭用冷凍・空調システムのTEWI評価

  • 祖父江 篤
    慶應義塾大学大学院理工学研究科機械工学専攻
  • 渡部 康一
    慶應義塾大学大学院理工学部システムデザイン工学科

書誌事項

タイトル別名
  • TEWI Evaluation for Household Refrigeration and Air-Conditioning Systems
  • カテイヨウ レイトウ クウチョウ システム ノ TEWI ヒョウカ

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説明

In the present study, we have quantitatively evaluated the global warming impact by household refrigerator and air-conditioning systems on the basis of reliable TEWI information. In TEWI evaluation of household refrigerators, the percentage of the impact by refrigerant released to the atmosphere (direct effect) is less than 18.6% in TEWI. In case of room air-conditioners, however, the percentage of direct effect is less than 5.4% in TEWI. Therefore, it was confirmed that impact by CO2 released as a result of the energy consumed to drive the refrigeration or air-conditioning systems throughout their lifetime (indirect effect) is far larger than direct effect by the entire system. A reduction of indirect effect by energy saving is the most effective measure in reducing the global warming impact by refrigeration and air-conditioning systems, For a realization of the energy saving, not only the advanced improvement in energy efficiency by household appliance manufacturers but also the improvement of consumer's mind in selecting the systems and a way of using are concluded important.

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