Автор работы: Пользователь скрыл имя, 16 Февраля 2013 в 16:28, дипломная работа
Центробежные компрессоры применяются для обеспечения многих производственных процессов (доменного производства, производства аммиачных удобрений, пластмасс, получения продуктов нефтехимии и т.п.), при добыче нефти и газа, на магистральных газопроводах, для наддува двигателей внутреннего сгорания, в газотурбинных установках, для получения сжатого воздуха, имеющего силовое назначение (пневматический инструмент, молоты, прессы и т.д.). На привод центробежных компрессоров приходится значительная доля всей потребляемой энергии. Например, только 4200 центробежных компрессоров газоперекачивающих агрегатов (ГПА) ОАО «Газпром» имеют суммарную мощность более 40 млн. киловатт и требуют для своего привода энергию на сумму несколько миллиардов долларов ежегодно. Таким образом, проблема оптимального проектирования центробежных компрессоров имеет очень большое значение для национальной экономики.
Стр.
1.Введение………………….…………………………………...……
4
2.Техническое задание.……………………...…………………....…..
14
3. Выбор варианта машины……………………………………….…..
15
3.1. Определение физических констант газа………………….………….....
15
3.2. Вариантные расчеты. ……….….…………………………..……......
16
3.3. Оптимизационный расчет выбранного варианта
проточной части компрессора…………………………...……….………..
26
3.4. Расчет семейства характеристик при переменных числах оборотов ротора…………………………………………………………………....
56
4. Расчет газодинамических параметров в сечениях ступеней...…..
66
5. Профилирование лопаток рабочего колеса ……………………...
71
5.1. Профиль лопатки РК первой ступени…..…..…………….………........
71
5.2. Профиль лопатки РК второй ступени...………….………………....….
76
6. Расчет камер компрессора...…………………………...……….…..
80
6.1. Расчет всасывающего патрубка...……….......………….……………...
83
6.2. Расчет выходной камеры …….…..…..…………….……………........
90
7. Расчет осевого усилия, действующего на ротор компрессора…..
91
8. Расчеты на прочность……………………………………………....
93
8.1. Расчет критической частоты ротора……..………………………….....
93
8.2. Расчет минимальной толщины стенки корпуса………………………...
97
9. Расчет подшипников на удельное давление………………………
100
9.1. Расчет опорных подшипников………………………………………...
100
10. Обеспечение безопасности при эксплуатации компрессорного оборудования…………………………………………………………..
102
10.1. Вентиляция………………………………………………………..
104
10.2. Освещение………………………………………………………...
106
10.3. Вибрация………………………………………………………….
107
10.4. Шум……………………………………………….………………..
110
10.5. Электробезопасность………………………………………………..
112
10.6. Обеспечение безопасности при эксплуатации систем, находящихся под давлением………………………………………………………………..
112
10.7. Взрыво- и пожаробезопасность……………………………………..
114
10.8. Защитная оснастка компрессора……………………………………
116
10.9 Регулирование компрессора………………………………………...
118
10.10. Список нормативных документов……………………….………...
118
11. Технико-экономическое обоснование проекта………………...
119
12. Технология изготовления РК первой ступени………………...
125
13. Описание конструкции……………………………………………
132
Список литературы……………………………………………………
133
| 82 | 4.4432E+02| 4.6699E+02| 0.8710 | 1.3983E+00| 2.6499E+04|
| 83 | 4.4635E+02| 4.6912E+02| 0.8707 | 1.3967E+00| 2.6534E+04|
| 84 | 4.4838E+02| 4.7125E+02| 0.8704 | 1.3951E+00| 2.6568E+04|
| 85 | 4.5041E+02| 4.7338E+02| 0.8700 | 1.3935E+00| 2.6601E+04|
| 86 | 4.5244E+02| 4.7552E+02| 0.8697 | 1.3919E+00| 2.6634E+04|
| 87 | 4.5447E+02| 4.7765E+02| 0.8693 | 1.3903E+00| 2.6666E+04|
| 88 | 4.5650E+02| 4.7978E+02| 0.8689 | 1.3887E+00| 2.6697E+04|
| 89 | 4.5853E+02| 4.8191E+02| 0.8685 | 1.3871E+00| 2.6727E+04|
| 90 | 4.6055E+02| 4.8404E+02| 0.8682 | 1.3854E+00| 2.6756E+04|
| 91 | 4.6258E+02| 4.8618E+02| 0.8678 | 1.3838E+00| 2.6785E+04|
| 92 | 4.6461E+02| 4.8831E+02| 0.8673 | 1.3822E+00| 2.6813E+04|
| 93 | 4.6664E+02| 4.9044E+02| 0.8669 | 1.3805E+00| 2.6840E+04|
| 94 | 4.6867E+02| 4.9257E+02| 0.8665 | 1.3789E+00| 2.6866E+04|
| 95 | 4.7070E+02| 4.9471E+02| 0.8660 | 1.3773E+00| 2.6891E+04|
| 96 | 4.7273E+02| 4.9684E+02| 0.8656 | 1.3756E+00| 2.6916E+04|
| 97 | 4.7476E+02| 4.9897E+02| 0.8651 | 1.3740E+00| 2.6940E+04|
| 98 | 4.7679E+02| 5.0110E+02| 0.8646 | 1.3723E+00| 2.6963E+04|
| 99 | 4.7881E+02| 5.0324E+02| 0.8641 | 1.3707E+00| 2.6985E+04|
|100 | 4.8084E+02| 5.0537E+02| 0.8636 | 1.3690E+00| 2.7006E+04|
|101 | 4.8287E+02| 5.0750E+02| 0.8630 | 1.3673E+00| 2.7026E+04|
|102 | 4.8490E+02| 5.0963E+02| 0.8625 | 1.3657E+00| 2.7046E+04|
|103 | 4.8693E+02| 5.1177E+02| 0.8620 | 1.3640E+00| 2.7065E+04|
|104 | 4.8896E+02| 5.1390E+02| 0.8614 | 1.3623E+00| 2.7083E+04|
|105 | 4.9099E+02| 5.1603E+02| 0.8608 | 1.3606E+00| 2.7100E+04|
|106 | 4.9302E+02| 5.1816E+02| 0.8602 | 1.3590E+00| 2.7116E+04|
|107 | 4.9505E+02| 5.2029E+02| 0.8596 | 1.3573E+00| 2.7132E+04|
|108 | 4.9707E+02| 5.2243E+02| 0.8590 | 1.3556E+00| 2.7147E+04|
|109 | 4.9910E+02| 5.2456E+02| 0.8583 | 1.3539E+00| 2.7161E+04|
|110 | 5.0113E+02| 5.2669E+02| 0.8577 | 1.3522E+00| 2.7174E+04|
|111 | 5.0316E+02| 5.2882E+02| 0.8570 | 1.3505E+00| 2.7186E+04|
|112 | 5.0519E+02| 5.3096E+02| 0.8563 | 1.3488E+00| 2.7197E+04|
|113 | 5.0722E+02| 5.3309E+02| 0.8556 | 1.3471E+00| 2.7208E+04|
|114 | 5.0925E+02| 5.3522E+02| 0.8549 | 1.3454E+00| 2.7218E+04|
|115 | 5.1128E+02| 5.3735E+02| 0.8542 | 1.3436E+00| 2.7226E+04|
|116 | 5.1331E+02| 5.3949E+02| 0.8534 | 1.3419E+00| 2.7235E+04|
|117 | 5.1533E+02| 5.4162E+02| 0.8527 | 1.3402E+00| 2.7242E+04|
|118 | 5.1736E+02| 5.4375E+02| 0.8519 | 1.3385E+00| 2.7248E+04|
|119 | 5.1939E+02| 5.4588E+02| 0.8511 | 1.3367E+00| 2.7254E+04|
|120 | 5.2142E+02| 5.4802E+02| 0.8503 | 1.3350E+00| 2.7258E+04|
|121 | 5.2345E+02| 5.5015E+02| 0.8495 | 1.3333E+00| 2.7262E+04|
|122 | 5.2548E+02| 5.5228E+02| 0.8486 | 1.3315E+00| 2.7265E+04|
|123 | 5.2751E+02| 5.5441E+02| 0.8478 | 1.3298E+00| 2.7267E+04|
|124 | 5.2954E+02| 5.5654E+02| 0.8469 | 1.3280E+00| 2.7269E+04|
|125 | 5.3156E+02| 5.5868E+02| 0.8460 | 1.3263E+00| 2.7269E+04|
|126 | 5.3359E+02| 5.6081E+02| 0.8451 | 1.3245E+00| 2.7269E+04|
|127 | 5.3562E+02| 5.6294E+02| 0.8440 | 1.3227E+00| 2.7267E+04|
|128 | 5.3765E+02| 5.6507E+02| 0.8430 | 1.3209E+00| 2.7265E+04|
|129 | 5.3968E+02| 5.6721E+02| 0.8421 | 1.3191E+00| 2.7262E+04|
|130 | 5.4171E+02| 5.6934E+02| 0.8412 | 1.3174E+00| 2.7258E+04|
|131 | 5.4374E+02| 5.7147E+02| 0.8402 | 1.3156E+00| 2.7253E+04|
|132 | 5.4577E+02| 5.7360E+02| 0.8395 | 1.3140E+00| 2.7248E+04|
|133 | 5.4780E+02| 5.7574E+02| 0.8381 | 1.3120E+00| 2.7242E+04|
|134 | 5.4982E+02| 5.7787E+02| 0.8368 | 1.3102E+00| 2.7234E+04|
|135 | 5.5185E+02| 5.8000E+02| 0.8353 | 1.3082E+00| 2.7226E+04|
|136 | 5.5388E+02| 5.8213E+02| 0.8340 | 1.3063E+00| 2.7217E+04|
|137 | 5.5591E+02| 5.8427E+02| 0.8328 | 1.3045E+00| 2.7208E+04|
|138 | 5.5794E+02| 5.8640E+02| 0.8314 | 1.3026E+00| 2.7197E+04|
|139 | 5.5997E+02| 5.8853E+02| 0.8302 | 1.3007E+00| 2.7186E+04|
|140 | 5.6200E+02| 5.9066E+02| 0.8288 | 1.2989E+00| 2.7173E+04|
|141 | 5.6403E+02| 5.9279E+02| 0.8275 | 1.2970E+00| 2.7160E+04|
|142 | 5.6606E+02| 5.9493E+02| 0.8261 | 1.2951E+00| 2.7146E+04|
|143 | 5.6808E+02| 5.9706E+02| 0.8247 | 1.2932E+00| 2.7131E+04|
|144 | 5.7011E+02| 5.9919E+02| 0.8233 | 1.2914E+00| 2.7115E+04|
|145 | 5.7214E+02| 6.0132E+02| 0.8218 | 1.2895E+00| 2.7098E+04|
|146 | 5.7417E+02| 6.0346E+02| 0.8204 | 1.2876E+00| 2.7081E+04|
|147 | 5.7620E+02| 6.0559E+02| 0.8188 | 1.2857E+00| 2.7062E+04|
|148 | 5.7823E+02| 6.0772E+02| 0.8173 | 1.2838E+00| 2.7043E+04|
|149 | 5.8026E+02| 6.0985E+02| 0.8158 | 1.2819E+00| 2.7022E+04|
|150 | 5.8229E+02| 6.1199E+02| 0.8140 | 1.2799E+00| 2.7001E+04|
|151 | 5.8432E+02| 6.1412E+02| 0.8123 | 1.2780E+00| 2.6979E+04|
|152 | 5.8634E+02| 6.1625E+02| 0.8107 | 1.2761E+00| 2.6956E+04|
|153 | 5.8837E+02| 6.1838E+02| 0.8090 | 1.2742E+00| 2.6933E+04|
|154 | 5.9040E+02| 6.2052E+02| 0.8073 | 1.2722E+00| 2.6908E+04|
|155 | 5.9243E+02| 6.2265E+02| 0.8058 | 1.2704E+00| 2.6882E+04|
|156 | 5.9446E+02| 6.2478E+02| 0.8040 | 1.2684E+00| 2.6856E+04|
|157 | 5.9649E+02| 6.2691E+02| 0.8019 | 1.2664E+00| 2.6828E+04|
|158 | 5.9852E+02| 6.2904E+02| 0.8001 | 1.2644E+00| 2.6800E+04|
|159 | 6.0055E+02| 6.3118E+02| 0.7979 | 1.2623E+00| 2.6770E+04|
|160 | 6.0258E+02| 6.3331E+02| 0.7960 | 1.2604E+00| 2.6739E+04|
|161 | 6.0460E+02| 6.3544E+02| 0.7940 | 1.2584E+00| 2.6709E+04|
|162 | 6.0663E+02| 6.3757E+02| 0.7921 | 1.2565E+00| 2.6677E+04|
|163 | 6.0866E+02| 6.3971E+02| 0.7896 | 1.2543E+00| 2.6644E+04|
|164 | 6.1069E+02| 6.4184E+02| 0.7876 | 1.2524E+00| 2.6610E+04|
|165 | 6.1272E+02| 6.4397E+02| 0.7855 | 1.2504E+00| 2.6576E+04|
|166 | 6.1475E+02| 6.4610E+02| 0.7834 | 1.2484E+00| 2.6540E+04|
|167 | 6.1678E+02| 6.4824E+02| 0.7813 | 1.2464E+00| 2.6504E+04|
|168 | 6.1881E+02| 6.5037E+02| 0.7791 | 1.2444E+00| 2.6467E+04|
|169 | 6.2084E+02| 6.5250E+02| 0.7768 | 1.2424E+00| 2.6428E+04|
|170 | 6.2286E+02| 6.5463E+02| 0.7745 | 1.2404E+00| 2.6389E+04|
|171 | 6.2489E+02| 6.5677E+02| 0.7722 | 1.2384E+00| 2.6349E+04|
|172 | 6.2692E+02| 6.5890E+02| 0.7698 | 1.2364E+00| 2.6309E+04|
|173 | 6.2895E+02| 6.6103E+02| 0.7671 | 1.2342E+00| 2.6265E+04|
|174 | 6.3098E+02| 6.6316E+02| 0.7647 | 1.2322E+00| 2.6222E+04|
|175 | 6.3301E+02| 6.6529E+02| 0.7618 | 1.2301E+00| 2.6179E+04|
|176 | 6.3504E+02| 6.6743E+02| 0.7593 | 1.2281E+00| 2.6135E+04|
|177 | 6.3707E+02| 6.6956E+02| 0.7570 | 1.2261E+00| 2.6090E+04|
|178 | 6.3910E+02| 6.7169E+02| 0.7545 | 1.2241E+00| 2.6044E+04|
|179 | 6.4112E+02| 6.7382E+02| 0.7520 | 1.2221E+00| 2.5997E+04|
|180 | 6.4315E+02| 6.7596E+02| 0.7497 | 1.2202E+00| 2.5951E+04|
|181 | 6.4518E+02| 6.7809E+02| 0.7464 | 1.2180E+00| 2.5899E+04|
|182 | 6.4721E+02| 6.8022E+02| 0.7434 | 1.2159E+00| 2.5848E+04|
|183 | 6.4924E+02| 6.8235E+02| 0.7404 | 1.2137E+00| 2.5796E+04|
|184 | 6.5127E+02| 6.8449E+02| 0.7373 | 1.2116E+00| 2.5743E+04|
|185 | 6.5330E+02| 6.8662E+02| 0.7342 | 1.2095E+00| 2.5690E+04|
|186 | 6.5533E+02| 6.8875E+02| 0.7311 | 1.2074E+00| 2.5635E+04|
|187 | 6.5735E+02| 6.9088E+02| 0.7279 | 1.2052E+00| 2.5580E+04|
|188 | 6.5938E+02| 6.9302E+02| 0.7246 | 1.2031E+00| 2.5523E+04|
|189 | 6.6141E+02| 6.9515E+02| 0.7213 | 1.2010E+00| 2.5466E+04|
|190 | 6.6344E+02| 6.9728E+02| 0.7180 | 1.1988E+00| 2.5408E+04|
|191 | 6.6547E+02| 6.9941E+02| 0.7145 | 1.1967E+00| 2.5349E+04|
|192 | 6.6750E+02| 7.0154E+02| 0.7111 | 1.1945E+00| 2.5289E+04|
|193 | 6.6953E+02| 7.0368E+02| 0.7075 | 1.1924E+00| 2.5227E+04|
|194 | 6.7156E+02| 7.0581E+02| 0.7039 | 1.1902E+00| 2.5165E+04|
|195 | 6.7359E+02| 7.0794E+02| 0.7002 | 1.1880E+00| 2.5102E+04|
|196 | 6.7561E+02| 7.1007E+02| 0.6964 | 1.1858E+00| 2.5038E+04|
|197 | 6.7764E+02| 7.1221E+02| 0.6924 | 1.1836E+00| 2.4972E+04|
|198 | 6.7967E+02| 7.1434E+02| 0.6885 | 1.1814E+00| 2.4906E+04|
|199 | 6.8170E+02| 7.1647E+02| 0.6845 | 1.1792E+00| 2.4839E+04|
|200 | 6.8373E+02| 7.1860E+02| 0.6805 | 1.1770E+00| 2.4771E+04|
|201 | 6.8576E+02| 7.2074E+02| 0.6755 | 1.1746E+00| 2.4702E+04|
|202 | 6.8779E+02| 7.2287E+02| 0.6713 | 1.1724E+00| 2.4633E+04|
|203 | 6.8982E+02| 7.2500E+02| 0.6669 | 1.1701E+00| 2.4562E+04|
|204 | 6.9185E+02| 7.2713E+02| 0.6617 | 1.1676E+00| 2.4486E+04|
|205 | 6.9387E+02| 7.2927E+02| 0.6571 | 1.1654E+00| 2.4413E+04|
|206 | 6.9590E+02| 7.3140E+02| 0.6524 | 1.1631E+00| 2.4339E+04|
|207 | 6.9793E+02| 7.3353E+02| 0.6477 | 1.1608E+00| 2.4264E+04|
|208 | 6.9996E+02| 7.3566E+02| 0.6428 | 1.1585E+00| 2.4188E+04|
|209 | 7.0199E+02| 7.3779E+02| 0.6378 | 1.1562E+00| 2.4110E+04|
|210 | 7.0402E+02| 7.3993E+02| 0.6318 | 1.1537E+00| 2.4032E+04|
|211 | 7.0605E+02| 7.4206E+02| 0.6266 | 1.1514E+00| 2.3953E+04|
|212 | 7.0808E+02| 7.4419E+02| 0.6213 | 1.1490E+00| 2.3873E+04|
|213 | 7.1011E+02| 7.4632E+02| 0.6158 | 1.1467E+00| 2.3791E+04|
+----+-----------+-----------+
Вариант 3 (3D+VD)
***** Input data *****
***** Compressor parameters ******
Mass flow,
Outlet pressure, Pout= 122.449 Atm (1.2000E+07 Pa)
Inlet pressure, Pin= 85.031 Atm (8.3330E+06 Pa)
Inlet temperature, Tin= 288.00 K
***** Gas parameters ******
Isentropic coefficient k= 1.4440
Gas constant,
Dynamic viscosity coefficient, muu= 1.3066E-05 n*s/m^2
*** Variant # 1 ***
Amount of rotors, nr=1
Amount of stages on rotor #1, nst=2
+---+------+------+------+----
| # | Type | F | Mu | PSIt | Reu | U2 | D2 | ETA | Tin | Tout |
+---+------+------+------+----
|Rotor # 1 n=5003.99 Dhb=0.3
| 1 |3D+VLD|0.0472|0.5052|0.6000|
8.970E+08|231.93|0.8852|0.8766
| 2 |3D+VLD|0.0417|0.4886|0.5800|
1.020E+09|231.93|0.8852|0.
+---+------+------+------+----
Polytropic Efficiency, ETAp=0.878
Power consumption, Nc=24899.96 kW
Stage # 1
**** Input data ****
F = .472E-01
PSIt = .600E+00
Mu = .505E+00
K = .144E+01
Reu = .897E+09
Dhb = .300E+00
DELim = .150E-01
DELrch = .200E-01
Kp = .450E+00
Stage exit - RCh
Impeller - 3D
Diffuser - VLD
**** Optimization parameters *****
Ad = .960E+00-
AL2 = .180E+02-
DWim = .248E+00-
DCrch = .375E+00-
B3/B2 = .100E+01-
D4 = .150E+01-
B5/B6 = .700E+00-
B66 = .100E+01-
I5 = .000E+00-
******* Calculation rezults ********
+------------------+----------
| Impeller | Diffuser | Return channel |
+------------------+----------
| Stage's geometry parameters |
| D1= .506E+00 | D3= .100E+01 | D5= .150E+01 |
| D0= .506E+00 | D4= .150E+01 | D6= .506E+00 |
| B1= .103E+00 | B3= .557E-01 | B5= .835E-01 |
| B2= .557E-01 | B4= .557E-01 | B6= .119E+00 |
| BT1'= .339E+02 | AL3'= .180E+02 | AL5'= .199E+02 |
| BT2'= .279E+02 | AL4'= .195E+02 | AL6'= .900E+02 |
| Zim= .150E+02 | Zvd= .000E+00 | Zrch= .140E+02 |
| WT= .742E+00 | Cd= .603E+00 | Crch= .545E+00 |
| BTbl1= .359E+02 | ALbl3= .000E+00 | ALbl5= .166E+02 |
| BTbl2= .400E+02 | ALbl4= .000E+00 | ALbl6= .900E+02 |
| Rblim=---------- | Rblvd= 0.000E+00 | Rbrch= .347E+00 |
| flow rates in control planes |
| F0= .282E+00 | F2= .195E+00 | F4= .127E+00 |
| F1= .282E+00 | F3= .195E+00 | F5= .102E+00 |
| F1'= .340E+00 | F3'= .195E+00 | F5'= .119E+00 |
| F2'= .212E+00 | F4'= .127E+00 | F6'= .191E+00 |
| efficiency losses in elements |
| dETim= .337E-01 | dETvd= .434E-01 | dETrc= .243E-01 |
| dETin= .000E+00 | dETvl= .000E+00 | dETbt= .312E-02 |
| loss coefficients of elements |
| Sim= .109E+00 | Svd= .131E+00 | Src= .234E+00 |
| Sin= .000E+00 | Svl= .000E+00 | Sbt= .258E-01 |
+------------------+----------
Disk friction coefficient, BETfr= .734E-02
Disk leakage coefficient, BETlk= .758E-02
Disk leakage-friction coefficient, BETim= .149E-01
Polytropic efficiency 2-2, ETA(0-2)= .952
Polytropic efficiency 4-4, ETA(0-4)= .909
Polytropic efficiency, ETA= .882
*** Stage performances ***
+---+--------+--------+-------
| N | F | ETA | PSIi | PSIp | Pi | KN | Kn |
+---+--------+--------+-------
| 1| .0255| .7439| .7706| .5733| 1.2245| .0196| .2423|
| 2| .0278| .7677| .7522| .5774| 1.2266| .0209| .2519|
| 3| .0302| .7897| .7340| .5797| 1.2278| .0222| .2616|
| 4| .0326| .8097| .7162| .5799| 1.2281| .0233| .2716|
| 5| .0349| .8278| .6985| .5783| 1.2277| .0244| .2818|
| 6| .0373| .8438| .6811| .5747| 1.2263| .0254| .2926|
| 7| .0396| .8574| .6637| .5691| 1.2241| .0263| .3039|
| 8| .0420| .8685| .6465| .5615| 1.2211| .0272| .3160|
| 9| .0444| .8769| .6294| .5519| 1.2171| .0279| .3290|
| 10| .0467| .8817| .6124| .5399| 1.2121| .0286| .3432|
| 11| .0472| .8822| .6090| .5372| 1.2110| .0287| .3462|
| 12| .0496| .8834| .5920| .5230| 1.2051| .0293| .3620|
| 13| .0519| .8827| .5751| .5077| 1.1987| .0299| .3789|
| 14| .0543| .8802| .5583| .4914| 1.1920| .0303| .3970|
| 15| .0566| .8770| .5415| .4749| 1.1851| .0307| .4160|
| 16| .0590| .8732| .5247| .4582| 1.1782| .0310| .4362|
| 17| .0614| .8687| .5080| .4413| 1.1713| .0312| .4575|
| 18| .0637| .8634| .4913| .4242| 1.1643| .0313| .4802|
| 19| .0661| .8572| .4747| .4069| 1.1573| .0314| .5046|
| 20| .0684| .8494| .4580| .3891| 1.1500| .0313| .5311|
| 21| .0708| .8406| .4414| .3711| 1.1428| .0313| .5597|
| 22| .0732| .8301| .4248| .3526| 1.1353| .0311| .5911|
| 23| .0755| .8172| .4082| .3336| 1.1277| .0308| .6260|
| 24| .0779| .8028| .3917| .3145| 1.1201| .0305| .6646|
| 25| .0802| .7851| .3752| .2945| 1.1122| .0301| .7085|
| 26| .0826| .7658| .3586| .2746| 1.1043| .0296| .7576|
+---+--------+--------+-------
Stage # 2
**** Input data ****
F = .417E-01
PSIt = .580E+00
Mu = .489E+00
K = .144E+01
Reu = .102E+10
Dhb = .300E+00
DELim = .150E-01
NUscr = .270E+03
Kp = .450E+00
Stage exit - Scroll
Impeller - 3D
Diffuser - VLD
**** Optimization parameters *****
Ad = .960E+00-
AL2 = .140E+02-
DWim = .222E+00-
B3/B2 = .100E+01-
D4 = .150E+01-
******* Calculation rezults ********
+------------------+----------
| Impeller | Diffuser | Scroll |
+------------------+----------
| Stage's geometry parameters |
| D1= .493E+00 | D3= .100E+01 | D180= .174E+01 |
| D0= .493E+00 | D4= .150E+01 | D360= .174E+01 |
| B1= .965E-01 | B3= .669E-01 | Ds180= .448E+00 |
| B2= .669E-01 | B4= .669E-01 | Ds360= .633E+00 |
| BT1'= .337E+02 | AL3'= .140E+02 | AL4= .159E+02 |
| BT2'= .210E+02 | AL4'= .159E+02 | NUscr= .270E+03 |
| Zim= .150E+02 | Zvd= .000E+00 |------------------|
| WT= .759E+00 | Cd= .580E+00 |------------------|
| BTbl1= .357E+02 | ALbl3= .000E+00 | ALscr= .159E+02 |
| BTbl2= .290E+02 | ALbl4= .000E+00 |------------------|
| Rblim=---------- | Rblvd= 0.000E+00 |------------------|
| flow rates in control planes |
| F0= .271E+00 | F2= .145E+00 | F4= .948E-01 |
| F1= .271E+00 | F3= .145E+00 | F180= .190E+00 |
| F1'= .329E+00 | F3'= .145E+00 | F360= .948E-01 |
| F2'= .161E+00 | F4'= .948E-01 |------------------|
| efficiency losses in elements |
| dETim= .379E-01 | dETvd= .536E-01 | dETsc= .281E-01 |
| dETin= .000E+00 | dETvl= .000E+00 |------------------|
| loss coefficients of elements |
| Sim= .125E+00 | Svd= .174E+00 | Sscr= .271E+00 |
| Sin= .000E+00 | Svl= .000E+00 |------------------|
+------------------+----------
Disk friction coefficient, BETfr= .832E-02
Disk leakage coefficient, BETlk= .836E-02
Disk leakage-friction coefficient, BETim= .167E-01
Polytropic efficiency 2-2, ETA(0-2)= .946
Polytropic efficiency 4-4, ETA(0-4)= .894
Polytropic efficiency, ETA= .866
*** Stage performances ***
+---+--------+--------+-------
| N | F | ETA | PSIi | PSIp | Pi | KN | Kn |
+---+--------+--------+-------
| 1| .0209| .7089| .7829| .5550| 1.2018| .0163| .2246|
| 2| .0229| .7332| .7623| .5589| 1.2035| .0175| .2343|
| 3| .0250| .7555| .7422| .5607| 1.2045| .0186| .2441|
| 4| .0271| .7760| .7224| .5606| 1.2047| .0196| .2541|
| 5| .0292| .7946| .7029| .5586| 1.2041| .0205| .2644|
| 6| .0313| .8115| .6837| .5548| 1.2028| .0214| .2751|
| 7| .0334| .8265| .6646| .5493| 1.2008| .0222| .2863|
| 8| .0354| .8396| .6457| .5421| 1.1981| .0229| .2980|
| 9| .0375| .8507| .6269| .5334| 1.1948| .0235| .3104|
| 10| .0396| .8597| .6083| .5229| 1.1909| .0241| .3237|
| 11| .0417| .8665| .5897| .5110| 1.1863| .0246| .3379|
| 12| .0438| .8709| .5712| .4974| 1.1812| .0250| .3533|
| 13| .0459| .8730| .5527| .4825| 1.1755| .0254| .3699|
| 14| .0480| .8729| .5344| .4664| 1.1693| .0256| .3880|
| 15| .0500| .8714| .5160| .4497| 1.1629| .0258| .4074|
| 16| .0521| .8691| .4978| .4326| 1.1564| .0259| .4280|
| 17| .0542| .8656| .4795| .4151| 1.1498| .0260| .4502|