Prova finale Propulsione Aerospaziale - Dimensionamento motore Aeronautico

M O TO RE RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Area Frontale 6.82 [m²] 6.25 [m²] 1.23[m²] 6.82[m²]

del M otore

M O TO RE RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY JT8D GP7200

GEnx

Portata massica 1064.60 [Kg/s] 976.464 [Kg/s] 191.62 [Kg/s] 1064.60 [Kg/s]

totale

Portata massica 112.06 [Kg/s] 96.69 [Kg/s] 69.18[ Kg/s] 109.75 [Kg/s]

del flusso caldo

Portata massica 952.57 [Kg/S] 879.94 [Kg/s] 122.44 [Kg/s] 954.89 [Kg/s]

del flusso di

bypass

M O TO RE RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

β 1.35 1.3 3.2 1.35

!"#

β 4 4 3 4

!"#

β 7.22 8.52 1.93 8.13

!"#

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Pressione GEnx JT8D

Atm osfera 41.014 [Kpa] 41.014 [Kpa] 41.014 [Kpa] 41.014 [Kpa]

Pressione Presa 60.212 [Kpa] 60.212 [Kpa] 60.212 [Kpa] 60.212 [Kpa]

Fan 81.286 [Kpa] 78.275 [Kpa] 192.68 [Kpa] 81.286[Kpa]

Compressore LP 325.14 [Kpa] 313.10 [Kpa] 578.03 [Kpa] 325.14[Kpa]

Compressore H P 2348.3 [Kpa] 2667.4 [Kpa] 1119.9[Kpa] 2643.3[Kpa]

Camera di 2160.4 [Kpa] 2454.0 [Kpa] 1030.3[Kpa] 2431.8[Kpa]

Combustione

Turbina H P 843.79 [Kpa] 830.94 [Kpa] 707.74[Kpa] 840.85[Kpa]

Turbina LP 226.90 [Kpa] 218.52 [Kpa] 111.94[Kpa] 200.19[Kpa]

  16  

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Temperatura GEnx JT8D

Atm osfera 242.65 [K] 242.65 [K] 242.65 [K] 242.65 [K]

Pressione Presa 277.65 [K] 277.65 [K] 277.65 [K] 277.65 [K]

Fan 306.90 [K] 303.08 [K] 406.42[K] 306.90[K]

Compressore LP 482.37 [K] 476.37 [K] 582.74[K] 482.38[K]

Compressore H P 913.26 [K] 949.38 [K] 725.35 [K] 947.61[K]

Camera di 1800[K] 1750 [K] 1400 [K] 1750[K]

Combustione

Turbina H P 1418 [K] 1329.6 [K] 1272.8 [K] 1336.6[K]

Turbina LP 1016.1 [K] 947.38 [K] 797.13 [K] 928.68[K]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Velocità di GEnx JT8D

efflusso

Flusso Caldo 577.61 [m/s] 557.734[m/s] 552.20[m/s]

434.43 [m/s]

Flusso Freddo 319.16 [m/s] 308.37 [m/s] 319.16[m/s]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Densità di GEnx JT8D

efflusso

Flusso Caldo 0.3734 [Kg/m³] 0.3857[Kg/m³] 0.5136 [Kg/m³] 0.3721[Kg/m³]

Flusso Freddo 0.5585 [Kg/m³] 0.5595[Kg/m³] 0.5585[Kg/m³]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Area di efflusso GEnx JT8D

Flusso Caldo 0.52 [m²] 0.4495 [m²] 0.8588[m²] 0.5342[m²]

Flusso Freddo 5.34 [m²] 5.10[m²] 5.3568[m²]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Spinta 130 [KN] 101[KN] 62 [KN] 120[KN]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

TSFC 0.0848 [Kg/(N*h)] 0.0870[Kg/(N*h)] 0.0847[Kg/(N*h)] 0.0840 [Kg/(N*h)]

  17  

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Spinta Specifica 84.4 [N*s/Kg] 69.20[N*s/Kg] 169.17 [N*s/Kg] 79.36[N*s/Kg]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.2244 0.2147 0.3024 0.2337

Termico

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.8880 0.9195 0.8567 0.9158

Propulsivo

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.1993 0.1974 0.2591 0.2140

Globale

A quota 9000 [m] si ottengono i seguenti risultati:

M O TO RE RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Portata massica 818.98[Kg/s] 751.28 [Kg/s] 147.40[Kg/s] 818.98[Kg/s]

totale

Portata massica 86.21 [Kg/s] 74.38 [Kg/s] 53.21[Kg/s] 84.43[Kg/s]

del flusso caldo

Portata massica 732.77[Kg/s] 676.89 [Kg/s] 94.19[Kg/s] 734.55[Kg/s]

del flusso di

bypass

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TREN[Kpa]T900 ELETTRIC W H ITNEY GP7200

Pressione GEnx JT8D

Atm osfera 30.69 30.69 [Kpa] 30.69 [Kpa] 30.69 [Kpa]

Pressione Presa 45.06[Kpa] 45.06 [Kpa] 45.06 [Kpa] 45.06 [Kpa]

Fan 60.83[Kpa] 58.57 [Kpa] 114.19[Kpa] 60.83[Kpa]

Compressore LP 243.32[Kpa] 234.31[Kpa] 432.57[Kpa] 243.32[Kpa]

  18  

Compressore H P 1757.3[Kpa] 1996.10[Kpa] 838.11[Kpa] 1978.10[Kpa]

Camera di 1616.7[Kpa] 1.836.50[Kpa] 771.06[Kpa] 1819.90[Kpa]

Combustione

Turbina H P 668.93[Kpa] 665.35 [Kpa] 541.10[Kpa] 672.30[Kpa]

Turbina LP 199.84[Kpa] 195.52 [Kpa] 98.21[Kpa] 180.49[Kpa]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Temperatura GEnx JT8D

Atm osfera 229.65[K] 229.65[K] 229.65[K] 229.65[K]

Pressione Presa 262.78[K] 262.78[K] 262.78[K] 262.78[K]

Fan 290.46[K] 286.85[K] 384.65[K] 290.46[K]

Compressore LP 456.53[K] 450.85[K] 551.52[K] 456.53[K]

Compressore H P 864.34[K] 898.68[K] 686.48[K] 896.84[K]

Camera di 1800[K] 1750[K] 1400[K] 1750[K]

Combustione

Turbina H P 1438.9[K] 1352.6[K] 1279.7[K] 1359.3[K]

Turbina LP 1059.0[K] 991.31[K] 829.96[K] 973.63[K]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G-P

TRENT900 ELETTRIC W H ITNEY GP7200

Velocità di GEnx JT8D

efflusso

Flusso Caldo 589.67[m/s] 570.52[m/s] 434.52[m/s] 565.41 [m/s]

Flusso Freddo 310.49[m/s] 300.00[m/s] 310.49 [m/s]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Densità di GEnx JT8D

efflusso

Flusso Caldo 0.3028[Kg/m³] 0.3152[Kg/m³] 0.4265[Kg/m³] 0.3052 [Kg/m³]

Flusso Freddo 0.4416[Kg/m³] 0.4424[Kg/m³] 0.4416 [Kg/m³]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Area di efflusso GEnx JT8D

Flusso Caldo 0.4829[m²] 0.4137[m²] 0.7955 [m²] 0.4893[m²]

Flusso Freddo 5.3439[m²] 5.100[m²] 5.3568[m²]

  19  

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Spinta 105 [KN] 83[KN] 50 [KN] 97.7[KN]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

TSFC 0.0854 [Kg/(N*h)] 0.0857[Kg/(N*h)] 0.0837[Kg/(N*h)] 0.0829[Kg/(N*h)]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Spinta Specifica 83.61[N*s/Kg] 70.22[N*s/Kg] 176.46[N*s/Kg] 80.26[N*s/Kg]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.2167 0.2075 0.3002 0.2246

Termico

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.8577 0.8844 0.8497 0.8844

Propulsivo

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.1859 0.1835 0.2551 0.1987

Globale

A quota 11000 [m] si ottengono i seguenti risultati:

  20  

M O TO RE RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Portata massica 620.43[ Kg/s] 569.15[Kg/s] 111.67[Kg/s] 620.43[Kg/s]

totale

Portata massica 65.31[Kg/s] 56.35[Kg/s] 40.31[Kg/s] 63.96[Kg/s]

del flusso caldo

Portata massica 555.13 [Kg/s] 512.80[Kg/s] 71.35[Kg/s] 556.47[Kg/s]

del flusso di

bypass

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Pressione GEnx JT8D

Atm osfera 22.585[Kpa] 22.585[Kpa] 22.585[Kpa] 22.585[Kpa]

Pressione Presa 33.16[Kpa] 33.16[Kpa] 33.16[Kpa] 33.16[Kpa]

Fan 44.76[Kpa] 43.10[Kpa] 106.10[Kpa] 44.76[Kpa]

Compressore LP 179.04[Kpa] 172.41[Kpa] 318.30[Kpa] 179.04[Kpa]

Compressore H P 1293.1[Kpa] 1468.8[Kpa] 616.70[Kpa] 1455.5[Kpa]

Camera di 1182.6[Kpa] 1351.3[Kpa] 567.36[Kpa] 1332.1[Kpa]

Combustione

Turbina H P 520.92[Kpa] 523.16[Kpa] 406.70[Kpa] 527.86[Kpa]

Turbina LP 171.88[Kpa] 170.61[Kpa] 84.18[Kpa] 158.60[Kpa]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Temperatura GEnx JT8D

Atm osfera 216.65[K] 216.65[K] 216.65[K] 216.65[K]

Presa d’aria 247.91[K] 247.91[K] 247.91[K] 247.91[K]

Fan 274.02[K] 270.60[K] 362.88[K] 274.02[K]

Compressore LP 430.69[K] 425.33[K] 520.30[K] 430.69[K]

Compressore H P 815.41[K] 847.80[K] 647.62[K] 846.07[K]

Camera di 1800[K] 1750[K] 1400[K] 1750[K]

Combustione

Turbina H P 1459.7[K] 1375.5[K] 1286.6[K] 1381.8[K]

Turbina LP 1101.8[K] 1035.1[K] 862.74[K] 1018.5[K]

  21  

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC GEnx W H ITNEY JT8D GP7200

Velocità di

efflusso

Flusso Caldo 601.46[m/s] 583[m/s] 434.6[m/s] 578.28[m/s]

Flusso Freddo 301.57[m/s] 291.38[m/s] 301.57[m/s]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Densità di GEnx JT8D

efflusso

Flusso Caldo 0.2406[Kg/m³] 0.2522[Kg/m³] 0.3482[Kg/m³] 0.2451[Kg/m³]

Flusso Freddo 0.3445[Kg/m³] 0.3451[Kg/m³] 0.3445[Kg/m³]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

Area di efflusso GEnx JT8D

Flusso Caldo 0.4513[m²] 0.3832[m²] 0.7379[m²] 0.4513[m²]

Flusso Freddo 5.3439[m²] 5.1[m²] 5.3568[m²]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Spinta 83.5[KN] 66.6[KN] 40.8[KN] 78.2 [KN]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

TSFC 0.0848[Kg/(N*h)] 0.0848[Kg/(N*h)] 0.0830[Kg/(N*h)] 0.0822[Kg/(N*h)]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Spinta Specifica 84.4[N*s/Kg] 71.21[N*s/Kg] 183.95[N*s/Kg] 81.11[N*s/Kg]

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.2095 0.2010 0.2969 0.2164

Termico

  22  

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.8270 0.8491 0.8418 0.8524

Propulsivo

M O TO RE: RO LLS RO YCE GENERAL PRATT AND ALLIANCE G -P

TRENT900 ELETTRIC W H ITNEY GP7200

GEnx JT8D

Rendimento 0.1733 0.1707 0.2499 0.1844

Globale

8. Conclusioni

Mette