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  • Summary & Details

Investigation of a Combined ORC-TEG Waste Heat Recovery System for a Hybrid Electric Vehicle with a Lean-Burn SI Engine

リーンバーンSIエンジンを搭載したハイブリッド車両におけるORC-TEG複合廃熱回収システムの検討

Detailed Information

Author(J)1) 成毛 政貴, 2) 北村 高明
Author(E)1) Masaki Naruke, 2) Takaaki Kitamura
Affiliation(J)1) 日本自動車研究所, 2) 日本自動車研究所
Affiliation(E)1) JARI, 2) JARI
Abstract(J)ハイブリッド車両の更なる燃費向上には廃熱の有効利用が重要となる.本研究では,空気過剰率2.0以上の希薄条件で運転可能なSIエンジンを搭載したハイブリッド車両を対象に,エンジン冷却系を含む有機ランキンサイクルと熱電発電装置を組み合わせた廃熱回収システムについて,その効果を数値シミュレーションにより評価した.

Translation

Abstract(E)Recovering waste heat is essential for improving the fuel efficiency of hybrid electric vehicles. In this study, a waste heat recovery system combining an organic Rankine cycle (ORC), including engine cooling, and a thermoelectric generator (TEG) is applied to a hybrid electric vehicle equipped with a lean-burn spark-ignition engine capable of operating at an excess air ratio of 2.0 or higher. The performance of the combined ORC-TEG system is evaluated using one-dimensional numerical simulations.

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