Pump Performance
Short Description
Pumps...
Description
η !!" $ # % &!" H = (
p
+
V
2
γ 2 g
+
Z ) d − (
p
+
V
2
γ 2 g
+
Z ) s
#γ %'(#(! % !!') !
*" ** !!'#'+# , ( ! 0!)"!" 1 1 2!1 ," 3" " !"
45
0 !* &3&6#7 γ 6# $γ +-./96#$ $# η *!" "%"": : η γ γ 3,! "," &!""& !,,*
2
2
!"#! ! "!% !:!
'
4+'+ ω+(π 6#;9 4/ +ω/ *0% "
2*
!"7 Q = 2π r 1b1C r 1
J N N .ms / OR m ≡ s s sN
=
2π r 2b2C r 2
" !" " & /+ / α/ +-9°& /+9 !"7
E =
W mg
=
(U 2C W 2 ) / g
m
:2
4( +4/ +ω + 2!/ +( +π=(( @ =(/ E =
W mg
=
(U 2C W 2 ) / g
02='
% :! """%!! A !",!" ! ? 4 "β( ? ( ( α(B 3!0 (0 ! ( ! (
02='
& "0 ( !
$ $
C2
C2
0!
" " C , D " & / 1
Design
Real
3! "%& "
Modify for Q = 0.5 Qdesign Modify for Q = 2.0 Qdesign
Outlet velocity triangles
Inlet velocity triangles
"'"
!"1 #""7 / E%,!"β( F-9° ° ( $ 2,!"β( G-9° 2"%,!!!( ! !,!! !!
H = U 2C W 2 / g C W 2
=
U 2
−
C r 2 cot β 2
=
H = U 2 (U 2 − (Q / A) cot H = K 1 − K 2Q
U 2 − (Q / A) cot β 2 2
) / g
and
=
K 1 − K 2Q
K 2
=
U 2 cot β 2 / Ag
E% β2 90)7β( F9 ∴ ( F9
"! β( ! -9°"! !!( %* ": "1
!!β( + -9°! !!, " * =!! :"
45H83303 ! / 0: $ H! "!% / 5" ":"! " " Hρ * I I ! "I I% η !"7η +2!"#3
η o
=
ρ gQH Ps
=
QH Ps
0
H "I
η !"7 +2 +2#!" , % +γ # γ +# &η !"7 η +2:# +2 :# ! " J +γ #Kγ JL+# J " η +!"# !" +# J+η η
0 % 'η! !"7 η! +2# + J* + 5 η !"7 η +2# +γ J# + ! η +η η! η
H 0 η c
=
η i
=
η h
=
η cη i
η v
=
Q Qi
H H i
H i ( H i =
+
H ( H i
=
=
η hη vη m
+
hi )
Q (Q + q )
m =
η o
hi )
s
=
γ QH / Ps
8
!"#!
!!% !! !" *0>* > , *! & " " !!"" ! "!"& & ":! !""! ""
'()!%*β( F-9
2", "%,!!β( +($ !6 +((99 " +90>$MN !"(/9 9FF/999
2G/999 " "0 "+ $(990* +(./ ! +/;N
5
*β( +,
H",!, " ;" "$9999 ! 11 : ,! "! ! "3:" ,! ! ""*! "%,!!"
#)!%) β$ -+,
,!!!"" !! !"!"! ",! "! E !: :$.O! " ",!": !" 6 *,
!" "
!%
1 " +# +# + # " !" 2 : !1 "
0
" 1" " !"
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