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[主观题]
已知天然气民用大气式燃烧器喷嘴直径dj=1.4 mm,喷嘴流量系数μ=0.78,燃气压力H=1 496 Pa,S=0.545,
天然气参数为:热值H1=35.6 MJ/m3,密度ρg=0.705 kg/m3,理论空气量V0=9.5,则燃气热负荷为()kW。
A.1.58
B.2.05
C.1.66
D.2.77
查看答案
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A.1.58
B.2.05
C.1.66
D.2.77
A.120.6
B.139.66
C.293.88
D.152.28
A.0.28
B.0.26
C.0.24
D.0.22
A.1.85
B.2.06
C.2.77
D.2.96
A.0.85
B.1.02
C.1.16
D.1.28
A.1 826
B.1 857
C.1 938
D.1 905
A.10.2
B.9.6
C.8.7
D.7.8
A.48.23 MJ/m3,40 MJ/m3
B.40 MJ/m3,30 MJ/m3
C.48.23 MJ/m3,42.3 MJ/m3
D.45 MJ/m3,42 MJ/m3
A.48.23 MJ/m3,40 MJ/m3
B.40 MJ/m3,30 MJ/m3
C.48.23 MJ/m3,42.3 MJ/m3
D.45 MJ/m3,42 MJ/m3