Air-Conditioning Systems in Urban Areas Concerning Heat Island Problem : Prediction of Space-Time Characteristics of Air Conditioning Exhaust Heat Based on Energy Supply

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  • ヒートアイランドに関する都市空調システムの検討 : エネルギー供給に基づく空調排熱の時空間特性の予測
  • ヒート アイランド ニ カンスル トシ クウチョウ システム ノ ケントウ エネルギー キョウキュウ ニ モトズク クウチョウ ハイネツ ノ ジクウカン トクセイ ノ ヨソク

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Abstract

Time changes of air conditioning exhaust heats distribution in Osaka city were estimated by energy supplies both electricity and town gas for the purpose of clarifying the space-time characteristics of the air conditioning exhaust heat. Energy supplies both by electricity and town gas were divided into building uses and air conditioners use. According to comparison between methods by energy supplies both electricity and town gas and methods by basic units of energy consumption, sensible heat from the air conditioner which is estimated by energy supplies both electricity and town gas was extremely large in a commercial and amusement district at night. Then, a temperature rise in the city gave biggest influence for air conditioner's exhaust heat in the district which is investigated this report. A temperature rise of 1.5 to 6.0 degrees Celsius involves a sensible exhaust heat from air conditioners increase of 70 to 140W/m^2 in the commercial and amusement district.

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