instalatii bord si punte
TRANSCRIPT
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8/18/2019 instalatii bord si punte
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i 2:=
g 2:=
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Va 0.5 0.1 i+:=
Vr 1 0.1 i+ 0.4 g+:=
Va 0.641=
Vr 2=
OBS
1. N 4:=
4. V 300 5 i+:=
V 310=
5. t 60 5 i+:=
t 70=
11. l1 0.5:= l7 30 2 i+:=
l2 0.5:= l8 2 i:=
l3 1.5 i:= l9 i 2 g+:=
l4 1:= l10 15:=
l5 1:= l11 15 5 g+:=
l6 1:= l12 5:=
Rezolvare
I
I1. Va 0.641=
Vr 2=
I2. V 310=
I3
t 70=
I4. l3 3= l9 6=
l7 34= l11 25=
l8 4=
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I5. Q4 V
60t:=
Q 0.295=
I6 1. SaQ
Va:=
Sa 0.46=
2.a Sr1Q
Vr :=
Sr1 0.148=
b Sr2Q
2 Vr :=
Sr2 0.074=
c Sr3Q
4 Vr :=
Sr3 0.037=
I7. 1. da 2Sa
π:=
da 0.766=
2.a dr1 2Sr1
π:=
dr1 0.434=
b dr2 2Sr2
π:=
dr2 0.307=
c dr3 2
Sr3
π:=
dr3 0.217=
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I8. das 850:=
dr1s 450:=
dr2s 350:=
dr3s 250:=
I9. Sas 0.567:=
Sr1s 0.159:=
Sr2s 0.096:=
Sr3s 0.049:=
I10. Vas
Q
Sas:=
Vas 0.521=
Vr1s Q
Sr1s:=
Vr1s 1.857=
Vr2s Q
2Sr2s:=
Vr2s 1.538=
Vr3s Q
4Sr3s:=
Vr3s 1.506=
Cap 2
II1. d as 0.550:= mm
la l1 l2+ l3+ l4+:=
la 5=
ν 1 10 6-
:=
Re Vas das
ν:=
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Re 2.864 105
=
g 9.81:=
λ 1
1.8 log Re( ) 1.5-( )2
:=
λ 0.014=
hlima λ la
das
Vas2
2 g:=
hlima 1.814 10 3-
=
II2. 1. ξint 0.5:=
g 9.81:=
hint ξintVas
2
2 g:=
hint 6.91 10 3-
=
2. ξf 1.2 0.3:=
g 9.81:=
hf ξf Vas
2
2 g:=
hf 0.049:=
3. α1 60:=
g 9.81:=
ξc1 0.131 0.163 0.8( )3.5+ α190:=
ξc1 0.137=
hc1 ξc1Vas
2
2 g:=
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hc1 1.895 10 3-
=
4. ξv1 0:=
hv1 ξv1 Vas
2
2 g:=
hv1 0=
5. hloca hint hf + hc1+ hv1+:=
hloca 0.058=
6. hta hlima hloca+:=
hta 0.06=
CAP III1.1. dr1s 0.300:=
g 9.81:=
Re Vr1s dr1s
ν:=
Re 5.571 105
=
λ 1
1.8 log Re( ) 1.5-( )2:=
λ 0.013=
lr1 l5 l6+ l7+:=
lr1 36=
hlimr1 λ lr1
dr1s
Vr1s2
2g:=
hlimr1 0.27=
1.2.
dr2s 0.200:= mm
dr3s 0.150:= mm
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Re Vr2s dr2s
ν:=
Re 3.075 105
=
λ 1
1.8 log Re( ) 1.5-( )2
:=
λ 0.014=
lr2 2 l8 l9+ l10+( ):= m
lr2 50= m
g 9.81:=
hlimr2 λ
lr2
dr2s
Vr2s2
2 g:=
hlimr2 0.429=
1.3.
Re Vr3s dr3s
ν:=
Re 2.259 105
=
λ
1
1.8 log Re( ) 1.5-( )2
:=
λ 0.015=
lr3 4 l11 l12+( ):=
lr3 120= m
g 9.81:=
hlimr3 λ lr3
dr3s
Vr3s2
2 g:=
hlimr3 1.397=
1.4.
hlimr hlimr1 hlimr2+ hlimr3+:=
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hlimr 2.096=
2.1
ξv2 4:=
g 9.81:=
hv2 ξv2 Vr1s
2
2 g:=
hv2 0.703=
2.2
α 90:=
ξc2 0.131 0.163 0.6( )3.5
+ α
90:=
ξc2 0.158=
hc2 ξc2 Vr1s
2
2 g:=
hc2 0.028=
2.3.
ξt 0.10:=
ht1 ξt Vr1s2
2 g:=
ht1 0.018=
2.4.
ξv3 4.5:=
hv3 ξv3 Vr2s
2
2 g:=
hv3 0.542=
2.5.
α 90:=
ξc3 0.131 0.163 0.6( )3.5
+ α
90:=
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ξc3 0.158=
hc3 ξc3 Vr2s
2
2 g
:=
hc3 0.019=
2.6.
ξc4 ξc3:=
ξc4 0.158=
hc4 ξc4 Vr2s
2
2 g:=
hc4 0.019=
2.7.ξt 0.10:=
ht2 ξt Vr2s
2
2 g:=
ht2 0.012=
2.8.ξv4 5:=
hv4 ξv4 Vr3s2
2 g:=
hv4 0.578=
2.9.
ξc5 ξc3:=
ξc5 0.158=
hc5 ξc5 Vr3s
2
2 g:=
hc5 0.018=
2.10.
ξs 0.3:=
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hs ξs Vr3s
2
2 g:=
hs 0.035=
2.11.
hlocr hv2 hc2+ ht1+ 2 hv3+ 2 hc3+ 2 hc4+ 2 ht2+ 4 hc5+ 2 hs+:=
hlocr 2.076=
3.
htr hlimr hlocr +:=
htr 4.172=
CAP IVhg 1:= m
Ht hta htr + hg+:=
Ht 5.232=
CAP V
Hf 1.2 Ht:=
Hf 6.278=
Qf 1.2 Q:=
Qf 0.354=