K-2015 直接噴射式ディーゼル機関の熱損失に関する研究(S23-3 ディーゼル燃焼)(S23 エンジンの燃料消費率と排気の同時低減に向けて)

概要

論文の詳細を見る
To clarify the mechanism of heat transfer between impinging spray flame and chamber wall in a DI diesel engine, the influence of fuel spray characteristics on heat loss'was investigated. Combustion tests were carried out under the constant volume condition achieved in a rapid compression machine. The net heat release, Q_s, was determined by the exhaust gas analysis, and apparent heat release, Q_a, was calculated using the cylinder pressure time histories. Heat Loss, Q_l, defined as Q_s-Q_a, and heat loss fraction defined as Q_l/Q_s were obtained. Results showed that heat loss fraction increased with burnt fuel amount. And it also increased when nozzle orifice diameter was changed from φ 0.15mm to φ 0.10mm.
社団法人日本機械学会の論文
2001-08-22