TBT 1733-1986 内燃机车冷却风扇性能试验方法

TBTB/T17338619861224198707011.1.1.1.2.1.2.1.1.2.2.15%15min1.2.3.1.2.4.1.3.1.3.1.1.3.2.HNQ2.2.1.2.1.1.3.3.1.3.1.1.0.01mm3.1.2.0.953.2.3.2.1.3.2.2.3.2.3.12mm1200mm3.2.4.3.2.5.3.3.3.3.1.4.4.1.hstoPa4.2.hdoPa4.3.hst1Pa4.4.hst2Pa4.5.H1Pa4.6.H2Pa4.7.nrmin4.8.MN.m4.9.BPa4.10.T1t1K4.11.ϕ%5.5.1.5.2.4.14.11355.3.5.25.4.HNQH=f(QN=f(Q)=f(Q)25.5.5.25.46.6.1.221+⋅⋅⋅⋅⋅++=nhhhhdondodododohPa1dohdondohh⋅⋅⋅⋅⋅⋅2Pa′′=′′=dondondodohhhhξξ,11ξ′′⋅⋅⋅⋅⋅⋅⋅′′dondodohhh21,Pa6.2.wdoohwρε2=wmshdPaPkgm36.3.HH=H2-H1=hst2+hd2-(hst1+hd1)=(hst2-hst1-hd1)+hd2=Hst+HdHst=hst2-hst1-hd1Hd=hd2HstPaHdPaHPaH1PaH2Pahst1Pahst2Pa3hd1Pahd2Pa6.4.hd121112=FQhdρhd1PaQm3s11kgm3F1m26.5.hd2()22222222422−==dDQFQhdπρρhd2PaQm3s2(21)kg/m3F2m2Dmdm6.6.nkWMnWMSnJMnJMN⋅=⋅=⋅=⋅=00010472.010472.0/10472.0min/2π6.7.QHNnpnnQQ00==ρρ0200nnHH=ρρ0300nnHH=760mmHg2050%1.2kgm346.8.a.b.c.QHNp2132121nnDDQQ=2212212121=nnDDHHρρ3213212121=nnDDHHρρ6.9.11BPa2t13ϕ%4psPa5pskgm36hstoPa7kgm3()()ssstothBϕρϕρρ++×−−×=12731013672932.18hdoPa9W0msρε/2doohw=10Qm3sQ=Fw11hst2Pa12hd2Pa2222=FQhdρ513hst1Pa14hd1Pa2112=FQhdρ15H2PaH2=hst2+hd216H1PaH1=hst1+hd117HPaH=H2-H118N1kWN1=QH100019nrmin20MN.m21NkWN=0.00010472M.n22m%23N2kWN2=Nm24%10021×=NNηn=rmin12345678910()()ssstothBϕρϕρ++×−−×12731013672932.6ρε/2dohFW222=FQρ212=FQρ22dsthh+=11dsthh+=H2-H1QH1000=0.00010472M.nmNη⋅=10021×=NN725Fm224DFπ=26UmS60Dnuπ=27akgm3()()SSatBϕρϕρρ++×−=12731013672932.128KQM3SKQ=Fu29KHPa2uKaHρ=30KNkWKN=KQKH100031QKQQQ/=32HHKHH/=33NNKNN/2=34()HPaρρρ2.1HHHOO==35()NkWρρρ2.122NNNOO==36()′OHPaρρ′=′HHO37()′ONkWρρ′=′2NNO8n=rmin12345678910()()sStϕρϕρ++×1273367293000ρ2.1ρ2.12N9A()BPat1T1Kϕ%hstoPakgm3hdoPawmsFm2Qm3shst1Pahst2Pahd1Pahd2PaH1PaH2PaHPaN1kWnrminMN.mN2kWm%%10B()1bar=103Pa=103Nm21mbar=102kgfm21mmH20=1kgfm2=9.80665Pa981Pa1kgf.m=9.80665Nm9.81N.m=9.80665J1kgf.ms=9.80665Js=9.80665W1=75kgf.ms=735499W11