Scroll Expander

DOI Web Site 1 Citations 9 References
  • NAGATOMO Shigemi
    Air Conditioners and Appliances Engineering Laboratory, Toshiba Co., Ltd
  • OOTAKA Toshio
    Air Conditioners and Appliances Engineering Laboratory, Toshiba Co., Ltd
  • MORISHIMA Akira
    Air Conditioners and Appliances Engineering Laboratory, Toshiba Co., Ltd

Bibliographic Information

Other Title
  • スクロール膨張機
  • スクロール膨張機 第2報:膨張機の内部損失
  • スクロール ボウチョウキ ダイ2ホウ ボウチョウキ ノ ナイブ ソンシツ
  • 第2報 : 膨張機の内部損失
  • 2nd Report : Internal Losses of Expander

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Description

Loss analysis of scroll expanders using R134a refrigerant was investigated and the following results were obtained. A loss estimating method of scroll expanders was proposed by using indicated power calculated by measured P-V diagram and another values. Leakage gas loss in suction process was large, so tip seals of scroll clearance are very important to realize high efficient scroll expanders. A new suction port system was designed and by this new type scroll expanders gas leakage decreased about 10% and expander efficiency increased about 10%.

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