Study on Premixed Combustion in a Diesel Engine with Ultra-multihole Nozzle

Table 9

Test result at different test cases.

speed r/min	Torque N.m	Load%	EGR Rate%	Injection pressure MPa	Injection starting point; °CA ATDC	Excess air coefficient λ	Soot g/kW·h	NOx g/kW·h	HC g/kW·h	CO g/kW·h	BSFC g/kW·h	CA50 °CA ATDC
1000	62	10	84	90	−1.5	2.81	0.0059	3.10	14.85	56.44	402.0	16.2
	155	25	81	110	−1.5	1.68	0.0012	1.49	5.08	21.23	274.8	17.9
	217	35	49	120	0	1.40	0.0099	1.17	3.79	19.67	263.1	20.3
	310	50	26	120	2.5	1.43	0.0516	4.04	1.07	11.41	252.9	19.4
1430	75	10	72	110	−2	2.53	0.0000	3.36	31.96	57.07	431.6	24.1
	188	25	60	110	−3	1.59	0.0223	1.87	4.10	13.96	269.9	19.6
	263	35	37	110	0	1.50	0.0236	1.91	1.19	8.76	256.7	20.7
	375	50	24	120	3	1.35	0.2831	2.97	0.35	10.75	249.5	21.1
1770	70	10	65	90	−3	2.48	0.0000	3.68	25.15	46.81	470.9	25.2
	175	25	51	100	−1	1.66	0.0069	1.48	3.81	15.98	314.3	24.2
	245	35	45	110	1	1.47	0.0263	1.17	2.69	12.98	299.5	31.9
	350	50	28	110	4.5	1.48	0.0238	2.09	3.11	8.15	281.5	32.8
2110	67	10	69	110	−2.5	2.24	0.0054	3.77	38.17	50.84	553.6	22.8
	167	25	60	110	−2.5	1.58	0.0192	1.10	6.49	17.67	334.2	23.9
	233	35	44	110	0.5	1.54	0.0257	1.40	3.97	11.05	307.9	27.3
	333	50	28	110	4	1.74	0.0317	2.11	0.87	5.27	284.7	29.1
2300	64	10	38	110	−1	2.95	0.0126	7.11	11.91	27.22	574.7	21.2
	160	25	50	120	−1	1.77	0.0137	2.09	5.35	12.62	348.8	22.4
	224	35	42	110	1.5	1.66	0.0219	1.74	2.51	10.42	336.9	29
	320	50	37	120	4	1.53	0.0366	1.49	0.61	8.28	314.5	33.4
750	5	—	38	80	1	5.72	0.0675	28.52	268.27	542.46	3027.9	18