ML20056D599

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Spes Pump Characterization
ML20056D599
Person / Time
Site: 05200003
Issue date: 12/30/1987
From: Rigamonti M, Vescovi O
AFFILIATION NOT ASSIGNED
To:
Shared Package
ML20056D594 List:
References
SIET---NT-54, SIET---NT-54-R, SIET---NT-54-R00, NUDOCS 9308170132
Download: ML20056D599 (25)
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Text

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l SPES PUMP '

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CHARACTERIZATION M. Rigamonti O. Vescovi e

SIET - NT/54 ,

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-This work, part of ENEA's LWR Safety Research Program l

was performed in the frame of ENEA-SIET contract. l l

(milestone NE AE 10) I l

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9308170132 930813 PDR ADOCK 05200003 A PDR _

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SPES PUFP CHARACTERIZATION M. Rigamonti

0. Vescovi SIET - NT/f>4 This work, part of EriEA's LWR Safety Research Program was performed in the frame of Ef4EA-SIET contract.

(milestone !;E AE IO) sr

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REV. N.PAGG. DATA Di FIR M A V IS TO SIET NT/45 0 7 EMISSIONE y 30 12.87 I LISTA DI DISTRIBUZIONE SIET ENEA C. MEDICH 1 A. ANNUNZIATO TERM /MEP/SISEEF 1 C. MERLI 1 G. CAPUANO TERM /RISIL 1 R. RAVETTA 1 P. FICARA TERM /RISIL 1 M. RIGAMONTI' 1 O. VESCOVI 1 ARCif./SIET 1 l

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C0NTENTS l

1. INTRODUCTION ,
2. EXPERIMENTAL LOOP  !
3. EXPERIMENTAL TEST DESCRIPTION-3.1. Test "A" s

3.2. Test "B" 3.3. Test "C"  !

i 3.4 Test "D"

.i !

3.5. Test "E"  ;

4. EXPERIMENTAL RESULTS 4.1. Tents "A" and "B" experimental resul ts , 4.2. Hydraulic torque r

4.3. Pump coast-down behaviour l

i 4.4. Unfed pump pressure drops -!

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1. INTRODUCTION

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The SPES recirculation pump characterization .is required in order '

to obtain experimental information concerning ISP test (LOFW + DELAYED ,

EFW). During such test the pump operates in the following conditions: l 3 i a) pump operating at nominal conditions (3200 RPM, 0.014 m /s) with ^

single phase 'ftuld l

b) pump in coastdown mode with rotational speed decreasing from the  ;

nominal value to zero (single phase fluid) c) unfed pump with fluid in single and two phase conditions (natural' ,

circulation).

l In order to obtain homologous curves in the first quadrant with fluid l l

in single phase conditions an experimental work has been carried out concerning conditions of poi -ts a) and b). To obtain experimental data.

related to point c) conditions (dragged rotor) measurements have been j carried out during single phase natural circulation test. The experi-mental measurements have been carried out using RP-1 pump; for the  ;

tests concerning points a) and b) a proper circuit has been used.

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2. EXPERIMENTAL LOOP {

4 The tests concerning points a) and b) (ch.1) have been performed l

+

using the loop nr. 1 of the SPES plant bypassing downcomer and power - f channel by means a pipe (2" sch 40) connecting steam generator . inlet f

to cold leg (fig. 1). This line has been provided with a manual control i

valve to vary the loop pressure drops. The cold legs nr. 2,3 and the .;

i channel side downcomer have been locked. i 9

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3. EXPERIMENTAL TEST DESCRIPTION f

Five tests have been carried out ( test "A", "B", "C", "D", "E") .  !

3.1. Test "A" The following parameters have been measured:

- mass flowrate (F - 110P) ,

- pump head (DP - 100P)

- outlet fluid temperature (T - 101P)  ;

- pump rotational speed (RPM - RPE)

- outlet pressure (P - 027P) i

- pump electrical porer (WEL) the test has been performed in the following experimental conditions:  ;

- rotational speed 7 2728 RPM (0) W 285 RAD /s)

- volumetric flowrate from 0.003 m /s to 0.015 m /s

- single phase fluid (T T 35 *C, P W 2.3 MPa) I 3.2. Test "B" l

The same parameters of par. 3.1. have been measured in the following .

experimental conditions:  !

- rotational speed varing from 2875 RPM to 257 RPM ( 9 =3301 + 27. RAD /s) I

- volumetric flowrate varing from 0.013 m /s to 0.001 m /s  :

- single phase fluid (T T 40 "C, P ? 2.2 MPa).

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f 3.3. Test "C" *

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l The test has been carried out measuring the pump electrical power-  ;

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and the rotational speed with number of RPM decreasing from nominal -h value to zero in the following conditions: 'I i

! - fluid = air l

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- pressure = atmospheric ,

- pump head T zero

r Such test permits to obtain the friction torque behaviour versus .{

the rotational speed g) . I 1

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l-3.4. Test "D" This test has been performed measuring rotational speed versus time -!

( u) = f (t)) during pump coast-down with the following conditions:

- fluid = water j

- temperature 'T 300 *C 1

- pressure 2 15.5 MPa j i

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3.5. Test "E" .!

The test is consisted in the measure of the pump pressure drops and the rotational speed during the single phase natural circulation expe-riments (unfed pump).

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4. ESPERIMENTAL RESULTS ,

i 4.1. Tests "A" and "B" experimental results The experimental results of the' tests "A" and "B" are shown'in tab. -

I and 2. The errors reported in the tables . are statistical errors I i

(maximum scatter related to average value). The pumps head calculation '

l has been performed using the following axpression:  ;

t I- H =

AP V! - V$ + (Z - 23) f i

P11 '

2g l

where: '

AP = pressure drops across the pump ( Pa) .;

t V, = inlet fluid speed (m/s)

V, = outlet fluid speed (m/s) +

Z,- Z, = geodetic difference between pump suction and discharge Thecharacteristic curve (head - volumetric flowrate) at 2728 RPM is - l shown in fig. 2. The nominal rotational speed (3200 RPM) has not been  !

reached because an anomalous high temperature value of a pump bearing was observed probably due to an insufficient lubrication. The trends of the pump head versus rotational speed and volumetric flowrate (with f

different number of RPM) are shown in figg. 3 and 4.

The experimental results obtained in tests "A" e "B" allow to draw

] i' the head-flowrate and the engine torque homologous curves in the first k

quadrant (fig. 5 and flg. 6). The variables reported in these figures '

are undimensional parameters and have the following meaning:

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1- -5'-  !

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H -

t h=- H, = 71. 9 m D

d= do = 301.1 RAD /s (2875 RPM) do y= -Q 3 Q, = 0.013 m /s O

/= Co Co = 49.85 N.m ,

i h g Foros 4 61 the curves g = f (& ) and }7, = f (7) have been drawn ,

ford 5 d oc 61 the curves = f (1) oL and = f (1) have been drawn.

at c(1 et .

The numerical values corresponding to fig. 5 and fig. 6 are shown in tab. 3.

t 4.2. Hydraulic torque (CHY) l The hydraulic torque is defined by means the following relations: ,

(1) CHY = Cm - Cf (td)

(2) Cm = WEL $ El l where:

it.L = 0.883 (electrical efficiency given by the supplier)

Cm = engine torque l l Cf = friction torque I WEL = pump electrical power l

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The Cf trend versus d can be approximately obtained from the results l 5

a of test "C". Infact when the purrp operates in air the hydraulic torque 1

is negligible and the frictior. torque results, by the relation (1), -

'1 equal to the engine torque. The frictir torque trend versus rotational'  ;

speed may be defined by means the following experimental relation computed from results of test "C", shown in tab. 4, by means of analytical best fit: >

-5 4 Cf = 6.1481 + 0.05115.W -3.7.10 .W (N.m) ,

i The behaviour of friction torque versusu) is shown in flg. 7. }

I 4.3. Pump coastdown behaviour  !

j The pump coastdown (tJ = f(t)) has been measured starting from conditions shown in 3.4 The measurett behaviour is presented in tab. 5 and fig. 8.

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4.4. Unfed pump pressure drop i i  ;

i The pressure drops acrass the pump have been measured in single phase i 9

natural circulation cond:.tions. The measured experimental data are lt presented in tab. 6. '

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+ 1 1 1 1 1 1 1 1 m l l l l l l l l l l l l l l C .

9 5 1 7 3 0 4 1 8 1 6 2 3 .

6 1 7 4 3 9 4 6 6 1 8 7 6 7 ,

9 0 0 1 1 1 4 2 3 4 4 5 6 6 ,

N. 3 4 4 4 4 4 4 4 4 4 4 4 4 4 .

l l l j l l l 1 l l l l l l .

m

% 6 0 6 8 1 8 8 8 4 1 3 9 5 7 .

+ 1 2 1 6 2 1 1 1 2 2 2 1 3 2 .

P l l l I l l l l l l l l l l w

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2 v 0 3 1 1 9 2 2 2 3 1 1 0 0 9 1

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F 2 2 2 2 2 2 2 2 2 2 2 2 2 2 -

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0 0 0 O 1 0 0 0 0 0 0 0 0 0 m P

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n 0 8 9 2 9 5 4 1 6 3 1 4 8 7 5 .

1 C .

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7 3 3 3 3 3 3 3 3 3 3 3 4 4 4 l l l l l l l l l l l l I 1 -

% 2 3 2 2 4 3 3 .

3 3 3 4 2 5 3 -

3 0 0 0 0 0 0 0 1 0 0 0 0 0 0 ,-

w l l l 1 l l l l l l l l l l H 6 3 7 0 7 4 8 6 3 7 9 8 7 1 4 9 1 7 4 7 1 5 6 2 5 2 2 7 .

e 2 0 0 9 7 7 7 7 1 1 7 6 9

6 7

6 6 6 6 6 6 5 4 6 6 6 3 2 e

l l l l l l l l l l l l 1 I w 2 3 2 2 4 3 3 3 3 3 4 3 6 3

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0 0 0 0 0 0 0 1 0 0 0 0 0 0 -

P .

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1 8 6 7 0 5 4 8 7 6 9 2 9 9 4 "

P a 2 7 9 5 2 5 9 3 4 0 4 0 0 5 7 D P 0 9 8 8 8 7 6 5 4 4 3 2 1 0 S -

k 7 6 6 6 6 6 6 6 6 6 6 6 6 6 E .

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1 1 6 5 4 4 4 7 2 2 2 2 1 1 1 m 1 1 0 0 0 0 0 0 0 0 0 0 0 0 . .

B .

A l l l l l l l l l l l l 1 l 7 Q -

3 4 6 7 7 8 9 0 1 2 2 3 4 5 s 0 0 0 0 0 0 0 1 1 1 1 1 1 1 -

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l l l l l l l l l l l l l l 1 1 5 5 4 4 4 7 3 2 2 2 1 1 -

1 .

% 1 0 0 0 0 0 0 0 0 0 0 0 0 -

P +

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- 6 0 0 3 1 0 4 4 3 6 4 9 3 1 F s 8 7 7 6 2 0 0 6 0 4 1 1 0 5 ~

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g 2 3 5 6 7 8 9 9 1 1 2 3 4 4 m R 1 1 1 1 1 1 l l 1 l l l l l l l l l l l

m 7 3 9 8 4 6 3 7 6 2 3 7 7 6 3 3 4 4 4 3 3 m

+

1 7 7 8 7 8 7 1 1 1 1 1 1 1 1 l

m l l l l l l l l l l e l l l I 3 8  % _

t 2 4 4 6 4 7 1 3 5 8 1 1 .

i 2 3 3 3 3 4 3 m t 3 4 4 4 4 5 5 k 1 1 1 1 1 1 1 1 1 1 1 1 1 1 m

l' l l 1 l l l l l l l l l I 8 8 7 6 7 8 7 9 7 5 7 7 4 6 m _

0 0 0 0 0 0 0 0 0 0 0 0 1 0 _

Q +o s

l l l l I l 1 l l l l 1 l l 4 6 7 4 4 7 5 8 7 6 3

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D 5 5 6 5 6 6 6 3 5 5 5 5 6 5 A 8 8 8 8 8 8 8 8 8 6 8 8 8 8 R 2 2 2 2 2 2 2 2 2 2 2 2 2 2 . .

l l l l l l l l l l l l l l 8 8 7 6 7 8 7 9 7 5 7 7 4 6 0 0 0 0 0 0 0 0 0 0 0 0 1 0

+

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d /V h/V f/V V/q h/gi f/d,1  ;

l l l l l t 0.948 l 0.893 l 0.918 l 0.243 l 1.121 l 0.884  !

0.882 ] 0.758 l 0.806 l 0.324 l 1.111 l 0.896 o.821 1 0.655 1 0.704 I O.486 l 1.096 l 0.906 f 1 l 1 l 1 l 0.567 l 1.091 l _O.923 0.996 l 1.013 l 1.050 j 0.567 l 1.085 l 0.920 0.988 l 0.999 l 0.97 l 0 647 l 1.071 l 0.930 0.952 l 0.958 l / l 0.728 l 1.063 l 0.984 [

0.945 l 0.940 l / l 0.816 l 1.058 l 0.963 0.929 l 0.940 l / l 0.892- l 1.046 l 0.973-l l l 0.973 l 1.0E2 l 0.984 l l l l 0.973 l 1.013 l 0.998 l l l 1 l 1 l 1 -

l l l O.981 l 1.009 l 1.045 0.895 1.118 i I I l l l /

i l l l 0.886 l 1.146 l /  ;

j l l 0.861 l 1.284 l /

f Co = 49.85 N.m  ;

3 Q H I Qo = 0.013 m /s CL = (O V= h=

f

  • CmCo 0 go go ,

Wo = 301.1 rad/5

'Ho = 71.9 m

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i TAB. 3 i

HOMOLOGOUS CURVE DATA i

1 4

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LP-1 DMSlDN IDkuus l

V-LP-1 1-ty-1 y.gp3 ppg.gp,3 ),

V +-I A +-I y ,.g ,.y g43j, U- ,

,,Z W.s +I

{0.9566.4 19.478 18.0 7342.2 22.6 3194. 0.6 334.3 0.6 19.4 22.8

.u3.34b 5.4 17.25919.2 6560.9 !.2.6 2878. 0.8 301.2 0.6 19.2 22.4 371.438 5.7 13.752 26.5 5080.1 30.9 2593. 0.9 271.4 0.9 16.5 30.6 i 353.680 5.1 12.096 33.5 4353.0 37.7 2319. 0.9 242.7 0.9 15.6 37.6 309.949 6.5 11.838 25.2 3554.8 25.5 2020. 1.1 211.4 1.1 14.6 25.7 260.095 8.0 10.290 34.1 2706.4 41.3 1708. 1.4 178.8 1.4 13.4 41.3 213.363lb.6 9.139 3:f.1 - 2059.2 43.2 1400. 1.3 146.5 1.3 12.4 43.5 l 174.03511.3 8.645 45.4 1501.2 53.9 1116. 1.7 116.8 1.7 11.3 53.7 136.350 15.1 9.107 26.5 1278.9 37.5 831. 2.9 67.0 2.9 12.9 37.3 100.595 4.1 7.174 24.9 715.8 24.2 523. 5.0 54.8 5.0 11.5 24.6 '

30.534 24.3 4.193 47.7 137.6 58.3 262. 9.0 27.5 9.0 4.35.9 i

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-i TAB. 4

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k

kF-1 6DEllr.pl IlffE @ 7 IllP P-027P F-110P DP-100P set kf.II/s OC F. k'3/ wc kPa L.01 332.7 301.*/ 15.40 1 2.618 -%'/.32 7.01 336.7 301.7 13.43 12.69 -368.17 9.01 331.5 301.L 1L.49 12.6g .31:.17 11.01 333.3 301.7 15.38 12.68 -:MS.60 13.01 334.2 301.'/ 15.49 12.*/ 1 -MB.60 15.01 333.8 301.3 15.54 12.70 - % 3.17 1*/.01 333.9 301.5 1L.43 12.71 -570,73 19.01 333.3 301.5 15.47 12.71 .% 9.02 21.01 337.6 301.L IL.St; 12.70 - % 7.32 23.01 332.4 301.5 13.48 12.70 -369.88 25.01 034.9 301.L 15.49 12.71 -L71.16 21.01 333.6 301.3 13.19 12.70 -369.02 29.01 328.4 301.5 IL.LL 12.70 - % 6.46 31.01 335.3 301.3 15.11 12.71 -369.02 33.01 332.4 301.5 IL.L1 12.7) -%D.l*/

35.01 335.5 301.3 13.33 12.70 -567.32 37.01 34' .2 3D1.5 15.41 12.71 -L64.32 39.01 330.6 301.3 13.13 12.70 -369.45 41.01 333.6 301.5 1L.48 12.*/1 -2! .'L 43.01 333.9 301.3 13.12 12.69 -367.32 .

45.01 336.4 301.5 15.43 12.70 - % 6.03 ,

47.01 33.i.3 301.5 13.44 12.69 569.45

  • 4 9.01 331.5 301.S 15.43 12.70 -M9.02 51.01 336.1 301.7 15.R 12.70 - % 0.17 L3.01 333.6 301.7 1L.43 12./0 - M 6.46 '

55.01 336.7 301.3 13.(2 12 y0 369.45  !

57.01 332.4 301.L 1L.36 12.70 -%9.(L 59.01 322.3 301.7 13.(2 12.70 -h31.50 I 61.01 286.7 301.L 1L.46 12.7D -443.41  ;

63.01 213.0 301.5 13.11 11.96 3 E.18 65.01 215.6

[

301.3 15.44 10.41 2L6.2D 67.01 164.0 301.1 13.53 9.02 -190.48 '

. 6 9.01 159.5 300.*/ IL.49 7.74 13g,79 71.01 131.0 300.5 15.44 6.67 -102.04 73.01 1 09.2 300.1 15.59 5.09 - 70.00 75.01 88.6 299.9 13.59 4.84 -43.65 i 77.01 65.0 299.7 15.L3 3.66 -25.14  !

79.01 18.1 299.5 13.37 3.06 -10.61 l Bl.01 23.0 299.3 15.62 2.30 -3.35 '

83.01 11.7 299.3 15.70 1.76 3.06 i C5.01 0.0 299.1 IL.LC 1.34 3.91 87.01 2.3 298.9 13.7J 1.10 3.91 i 69.01 -0.6 29C.B IL.CL 1.00 4.34 l 91.01 -2.1 298.8 13.77 1.00 3.49 93.01 2.B 298.6 15.90 1.00 L.19 95.01 1.2 298.1 13.99 1.10 3.49 l 97.01 -1.0 298.2 15.94 1.00 3.91 I 99.01 3.1 298.0 16.04 1.01 L.19 l

TAB. 5 l

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IP-111E55URE ItDPS IN SECI.E PIMSE liATULAL ClkCULA710N CONDl?lDil

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- _ ._ _ j l

l l IlnE l-lllP P-027f I-110r IlP-10DP tlH-IP-1 H f>

sec OC HPa K3 /5 Ef4 e

= ,

l 3.01 293.4 14.44 0.60 - 4.95 50. g -0.224 i.

0.% - 3.00 21.01 293.6 14.36 9. 0.045 41.01 293.6 14.39 0.56 - 4.46 9. -0.157 61.01 293.8 14.3L 0.L7 - 3.24 6. 0.012 1 61.01 293.6 14.36 0.56 - 4.71 56. -0.191 101.01 294.0 14.36 0.% - 3.00 lb. 0.045 .

121.01 293.8 14.33 0.55 - 3.49 32. -0.023 l l

141.01 293.8 14.32 0.% 4.22 12. -0.124 161.01 293.8 14.32 0.% - 2.26 9. 0.147  ;

181.01 293.8 14.32 0.Z - 4.95 62. -0.225 201.01 293.8 14.28 0.55 3.24 36. 0.012 l 221.01 293.6 14.30 0.% - 3.73 3D. -0.056 241.01 293.6 14.13 0.61 - 1./6 29. 0.214 261.01 293.8 14.39 0.00 - 3.00 12. 0.045 281.01 293.6 14.41 0.38 4.95 6. -0.224 l 301.01 293.B 14.38 0.LB - 2.51, 29. 0.113 321.01 293.8 14.35 0.51 4.22 12. -0.124 3 341.01 293.8 14.35 0.L*/ 3.00 3. 0.045 361.01 293.8 14.37 0.5/ - 3.73 0. -0.056 301.01 293.8 14.33 0.57 - 4.46 12. -0.157 401.01 293.8 14.31 0.57 - 2.02 3. 0.180 .j 421.01 293.8 14.32 0.L*/ 3.97 9. -0.089 . -

441.01 294.0 14.28 0.51 2.'.il 3. 0.112 461.01 293.8 14.32 0.57 3.73 -3. -0.0%

481.01 293.9 14.37 0.% 3.28 -12. 0.012

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TAB. 6  ;

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ni N

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B:!

m 8

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TEST A a t=%

  • iodi RP-1 PUMP CHARACTERIZATION --

-fig,2-

H Io3 70 -

/

60 -

50 -

40-30 -

to

$ 20 -

5

.5 O.

10 -

M L/1 .

i s 8 0 $0 10 0 15 0 200 250 300 u)(red /s)

RP-1 PUMP CHARACTERIZATION -

TEST S

-fig.3-

H iai n=2875 rpm 70 ~

60 - n=2480 rpm $

50 -

40-n=1982 rpm 30-fu n=1748 rpm N -

C QJ ts 20.- n=1474 rpm n=1254 rpm i

10 - n=1027 rpm +

W , n=741 r M n.499 rpm n=257 r

, i f to 1s a i= % + 1s-3 RP-1 PUMP CHARACTERIZATION. - TEST B

-fig.4-

-_. - . - _ - _ _ _ _ - _ _ _ _ - - - - . _ _ . _-_ _ . . - _ _ . . _ -. -. __ .~

h/v2 h/d.2 O h/A2 = f(v/e }

L .

A h/v2 , gg g y) 2-ts -

4 1-A k

1 c.s- i l

1 i

i e I i 85 1 d/v yk RP-1 PUMP CHARACTERIZATION - HOMOLOGOUS CURVES

. n,. s -

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l l

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Fig. 6 RP-1 PUMP CHARACTERIZATION - HOMOLOGOUS CURVES

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75.0 -

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125.0 -

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m 150.0 -

H w ^

O D 175.0

+ H L3 O

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Z (1 +

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O

+

C 275.0 -

lT1 l l

300.0 -

+ l 325.0 -

+

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