BINARY FUEL LARGE-SIZED DIESEL ENGINE OPERATION METHOD AND BINARY FUEL LARGE-SIZED DIESEL ENGINE
PROBLEM TO BE SOLVED: To provide an operation method enabling a binary fuel large-sized diesel engine to be operated in at least about 100% of an entire load without substantially increasing an amount of discharging of contaminated substance even under not-preferable circumferential condition under...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an operation method enabling a binary fuel large-sized diesel engine to be operated in at least about 100% of an entire load without substantially increasing an amount of discharging of contaminated substance even under not-preferable circumferential condition under a gas mode of the binary fuel large-sized diesel engine.SOLUTION: This invention provides an operation method for a binary fuel large-sized diesel engine that can be operated both under a liquid mode where liquid fuel is fed into a cylinder for combustion and a gas mode where gas acting as fuel is fed into the cylinder and the gas is mixed with scavenging gas and ignited under a specified air-gas-ratio, in particular, a longitudinal scavenging type two-stroke large-sized diesel engine. The large-sized diesel engine is operated under a power-balance mode in which control parameters enabling a variation of air-gas ratio to be monitored during operation under a gas mode and the air-gas ratio is increased for combustion of gas when the control parameters reach to the limit value.SELECTED DRAWING: Figure 1
【課題】二元燃料大型ディーゼルエンジンのガスモードにおいて、好ましくない周囲条件下でも汚染物質排出量を大幅に増加させることなく、全負荷の少なくとも約100%で動作可能とする動作方法を提供すること。【解決手段】本発明によれば、液体燃料が燃焼のためにシリンダに導入される液体モードと、燃料としてのガスがシリンダに導入され、このガスが掃気と混合されて所定の空気ガス比で燃焼されるガスモードとで動作可能な二元燃料大型ディーゼルエンジン、特に長手方向掃気式2ストローク大型ディーゼルエンジンの動作方法であって、ガスモードでの動作中、空気ガス比の変化を検出可能とする制御パラメータが監視され、制御パラメータが制限値に達すると、ガスの燃焼のために空気ガス比を上昇させるパワーバランスモードで大型ディーゼルエンジンが動作される、動作方法が提案される。【選択図】図1 |
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