Work procedure
1. Check water-level in feed-tank 9 (Fig. 6.2) by calibrating tube 10 and, if necessary, refill it.
2. Set a steady-state regime of the pump with partly opening of throttle 7.
3. Measure vacuum PV and pressure PM.
4. Measure time T of calibrating tank 8 being filling.
5. Measure a torque and determine the power at the motor shaft.
6. Put all results of measurement and calculations in table 6.1.
7. Increase pump discharge and follow instructions of items 1, 2, 3, 4 for each position.
8.
Determine values
,
Q,
.
9. Plot diagrams HP=(Q), P=(Q), using the received data.
Table 6.1
Number of measurement |
1 |
2 |
3 |
4 |
5 |
Time for calibrating tank filling T,s |
|
|
|
|
|
Measured volume of liquid W, m3 |
|
|
|
|
|
Liquid rate Q, m3 /s |
|
|
|
|
|
Pressure output PP, Pa |
|
|
|
|
|
Vacuum input PV, Pa |
|
|
|
|
|
Pump Pressure Head HP, m |
|
|
|
|
|
Pump Power NP, W |
|
|
|
|
|
Lever motor balance L, m |
|
|
|
|
|
Motor Power NM, W |
|
|
|
|
|
Pump
efficiency
|
|
|
|
|
|
Appendix 1
Relation of kinematics viscosity coefficient of fresh water to temperature
Appendix 2
Relation of kinematics viscosity coefficient of AMG-10 oil to temperature
Appendix 3
|
Volume modulus K, kg/cm2 |
13.300 |
13.000 |
13.000 |
|
|
13.300 |
|
|
|
-200˚C |
0.11 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
-190˚C |
0.45 |
|||||||||||
|
Vapour pressure pt. mm Hg |
+20˚C |
90 |
11.5 |
– |
|
|
|
60 |
44 |
46.4 |
-160˚C |
7 |
|
+40˚C |
195 |
27 |
100 |
|
|
|
156 |
135 |
56.7 |
-149˚C |
21 |
|
|
+60˚C |
– |
59 |
– |
|
|
|
355 |
352 |
61.4 |
t |
p1 atm |
|
|
Kinematic viscosity υ at temperature t, centistokes |
-50˚C |
2.60 |
25 |
5.5 |
|
– |
1.250 |
1.72 |
6.5 |
– |
-204˚C |
0.297 |
|
-20˚C |
1.62 |
8.0 |
– |
congeals |
498 |
130 |
0.83 |
– |
– |
-200˚C |
0.257 |
|
|
0˚C |
0.93 |
4.0 |
2.0 |
10,100 |
– |
42 |
0.70 |
– |
1.042 |
-190˚C |
0.193 |
|
|
+20˚C |
0.73 |
2.5 |
1.05 |
1,100 |
30 |
16 |
0.58 |
1.52 |
0.95 |
-184˚C |
0.170 |
|
|
+50˚C |
0.54 |
1.5 |
– |
1.55 |
8.3 |
10 |
0.38 |
– |
– |
-175˚C |
0.125 |
|
|
+70˚C |
– |
1.2 |
– |
65 |
– |
7.5 |
0.30 |
– |
– |
t |
υ cst |
|
|
Specific gravity δ |
0.750 |
0.800 |
0.775 |
0.895 |
0.885 |
0.850 |
1.510 |
0.790 |
1.34 |
1.15
1.25 |
||
|
Liquid |
Aviation gasoline . Б95/130 |
Kerosene T-1 |
Kerosene T-2 |
Lubricating oil MC-20 |
Lubricating oil MK-8 |
Hydraulic fluid АМГ-10 |
Nitric acid (98%) |
Ethyl alcohol |
Hydrogen peroxide (80%) |
Liquid oxygen |
||