Engineering materials for electrical engineers 2

handbook for electrical engineers hu (2)

... 10Ϫ6(t Ϫ 28 )3Ϫ 0.0001497 ϫ 10Ϫ6(t Ϫ 28 )4Etϭ E 28 Ϫ 52. 899 ϫ 10Ϫ6(t Ϫ 28 ) Ϫ 0.8 026 5 ϫ 10Ϫ6(t Ϫ 28 ) 2 ϩ 0.001813Beaty_Sec03.qxd 17/7/06 8 :26 PM Page 3-10Downloaded from Digital Engineering ... always too small. 2P 2 ϩ Q 2 Beaty_Sec03.qxd 17/7/06 8 :26 PM Page 3 -23 Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright © 20 06 The McGraw-Hill ... i) 2 Ϫ (v Ϫ i) 2 ]dt ϭ4kT3T0vi dt Beaty_Sec03.qxd 17/7/06 8 :26 PM Page 3 -20 Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright © 20 06...

handbook for electrical engineers hu (3)

... 1.439 2. 02 1.39 2. 08 1.36 2. 15 1 .29 2. 27 1 .23 2. 39 1.19 2. 54 1.15 2. 87 1.08 25 00 1. 825 1.336 1.87 1 .28 1.91 1 .24 2. 00 1 .20 2. 12 1.16 2. 25 1. 12 2.40 1.09 2. 75 1.05 20 00 1.631 1 .23 9 1.67 1 .20 1. 72 ... 0 .20 160 90.0 32. 07 127 0.031 42 2.6 1 .20 056 0.90 126 6.0 2. 39359 0.46 521 14.5 5.38560 0.19468 100.0 35.60666 0. 028 28 2. 7 1 .22 753 0.88 825 6 .2 2.46338 0.45056 15.0 5.5 620 8 0.18 822 ϱϱ 0 2. 8 1 .25 620 ... 0.058 92 2.1 1.09375 0.95343 5.0 2. 0 427 2 0.55597 12. 0 4.50358 0 .23 501 50.0 17.930 32 0.05656 2. 2 1.11 126 0.944 82 5 .2 2.11353 0.53506 12. 5 4.67993 0 .22 567 60.0 21 .46541 0.04713 2. 3 1.13069 0.93 527 ...

handbook for electrical engineers hu (4)

... def. 2, 170 1,990 2, 200 2, 075 2, 120 2, 027 Softening 2, 250 2, 120 2, 250 2, 200 2, 380 2, 089Fluid 2, 440 2, 290 2, 290 2, 310 2, 700 2, 203Ash analysis, %SiO 2 40.0 46.4 29 .5 46.1 62. 9 23 .1 Al 2 O3 24 .0 ... 10.4 28 .4 6.3VM, % 31.6 33.1 32. 6 31.7 23 .2 27.5FC, % 53.1 36.5 36.6 26 .9 18.4 26 .6Btu/lb, as fired 13 ,24 0 10,500 8, 125 7,590 5,000 6, 523 Btu/lb, MAF 15,640 15,100 12, 650 12, 940 12, 020 12, 050Fusion ... Al 2 O3 24 .0 16 .2 16.0 15 .2 17.5 11.3Fe 2 O316.8 20 .0 4.1 3.7 2. 8 8.5CaO 5.8 7.1 26 .5 16.6 4.8 23 .8MgO 2. 0 0.8 4 .2 3 .2 0.7 5.9Na 2 O 0.8 0.7 1.4 0.4 3.1 7.4K 2 O 2. 4 1.5 0.5 0.6 2. 0 0.7TiO 2 1.3...

handbook for electrical engineers hu (5)

... 24 00 1000 1000 2 1 32 Motor 7 473 7750 79506.49 4.45350 24 00 1000 1000 2 1 32 Turbine 7 473 7890 6. 62 4 .27 500 24 00 1000 1000 4 22 2 Turbine 7 473 7830 6.57 4 .26 700 24 00 1000 1000 4 26 4 Turbine ... Btu/lb 24 .2 96.6 6.045 6.045 12. 09Required P 2 lb/in 2 (abs) 327 168 380.6 361.9 361.9from Mollier chartStage P1/P 2 1 .22 4 2. 38 1.0 52 1.105 1.105Note: 1 ft/s ϭ 0.3048 m/s; 1 lb/in 2 ϭ 0.06895 ... velocity, ft/s ϭ 22 3.7!⌬H V1 2 2gJϩ H1ϭV 2 22gJϩ H 2 Beaty_Sec06.qxd 17/7/06 8:31 PM Page 6-3Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright...

handbook for electrical engineers hu (6)

... 0.9577 0. 925 05 0 .25 88 0 .20 53 0.05317 0 .25 88 −0.1576 −0.040811 0.9659 −0. 126 1 −0. 121 813 −0.9659 0. 126 1 −0. 121 817 −0 .25 88 0.1576 −0.040819 −0 .25 88 −0 .20 53 0.0531 23 −0.9659 −0.9577 0. 925 0 25 0.9659 ... 0.9659 −0.9577 −0. 925 0 29 0 .25 88 −0 .20 53 −0.053131 0 .25 88 0.1576 0.040835 0.9659 0. 126 1 0. 121 837 −0.9659 −0. 126 1 0. 121 8kbnϭsin nus 2 nus 2 Beaty_Sec07.qxd 17/7/06 8: 32 PM Page 7-14Downloaded ... temperature T1and R 2 is the resistance at temperature T 2 . The constantK is 23 4.5°C for copper, 24 2°C for silver-alloyed copper used for hollow conductors, and 22 5°C for electrical conductivity...

handbook for electrical engineers hu (7)

... 98,300130 21 0 320 3.7 11 9 .2 6 .2 4 ,28 0 100 160 24 0 25 150 95 15 5,065 121 ,20 0 128 ,100 134,000 721 1 12. 5 ϫ 10658 ,20 0 120 ,500 126 ,500 1 32, 300 71,000 61,800 90,000 1 12, 500440 660 1,000 5.7 14 26 22 54,900 ... W/in 2 0.3 62 W/in 2 W/in 2 allowed 0:388 W/in 2 Res. 75ЊC 2. 21⍀Coils in series 10Copper 0.1 62 ϫ 0 .25 8 ϭ 0.04 in 2 Coil 24 T high ϫ 8lay. 192T/coilLayout ϪLt55.65 in I ϭ At/t 39.1 A Surface 2H ... 495 750 40 195 27 0 540 7, 520 129 ,500 137,000 143,000770 120 ϫ 106 62, 100 128 ,000 134,600 139,000 75,800 66,000 96,000 120 ,000710 1 ,20 0 1,850 7.9 16 46 4105 ,23 0 535 900 1,390 55 22 0 475 985 9,790Note:...

handbook for electrical engineers hu (8)

... sized to a Q 20 and projects with storage are sized for a Q30. The term Q 20 means a flow value that exceeds 20 % ofthe time. In other words, the project could utilize all of the flow for generation ... . . . . . .9 -22 9.7 .2 Ancillary Services . . . . . . . . . . . . . . . . . . . . . . . . . . .9 -23 9.7.3 Pumped Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 -23 9.8 ENVIRONMENTAL ... suited for providing peaking power, hydroelectricity complements thermal generationBeaty_Sec09.qxd 17/7/06 8:35 PM Page 9 -22 Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright...

handbook for electrical engineers hu (9)

... I 2 ϭ 15s1.87d0.5ϭ 20 .5ЊC T 2 ϭ 3 ϫ 2. 30 ϭ 6.9ЊC N 2 ϭ 15s2.30d0.8ϭ 29 .2 C B 2 ϭ 45s1.87d0.8ϭ 74 .2 C 2. 30 ϫ 2 ϩ 13ϭ 1.87 s1.4d 2 23 4.5 ϩ 140 23 4.5 ϩ 85ϭ 2. 30 H 2 ϭ 35.9 ... excessive for continuous loading and should not becontinued for any extended time period. H 2 ϭ 74 .2 ϩ 20 .5 ϭ 94.7ЊC S 2 ϭ 74 .2 ϩ 29 .2 ϩ 6.9 ϩ 20 .5 ϭ 130.8ЊC U 2 ϭ 74 .2 ϩ 29 .2 ϩ 6.9 ϭ 110.3ЊC ... through the strand. For a two-winding transformer,(10 -27 ) (10 -28 ) LEϭ HCWE WEϭ 2. 06 ϫ 10–10d 2 f 2 BL 2 309.5 23 4.5 ϩ C LRϭ HCWR WRϭ 2. 57 M 2 23 4.5 ϩ C309.5 ...

handbook for electrical engineers hu (10)

... 5. 62 CA San 38′ 31″ N 121 ′ 30″ W 2. 35 3.33 4. 42 5.95 6.84 7.39 7.55 6.51 5.75 3. 92 2.65 2. 06 4.89 FranciscoCO Denver 39′ 45″ N 104′ 52 W 2. 25 3 .2 4. 32 5.61 6.11 6.71 6.5 5.86 5.47 4.01 2. 59 ... 36′ 50″ N 3′ E 2. 22 2.94 3.87 5 5.88 6.69 7 .23 6.48 5.15 3.53 2. 43 2. 02 4.45EG Cairo 29 ′ 35″ N31′ 09″ E 3.39 4.17 5 .24 6.49 7.11 8 7.88 7.4 6. 42 5.07 3.86 3.19 5.68GM Gambia 13′ 28 ″ N16′ 39″ ... 6. 92 6. 72 6.06 5.48 5.09 5.3 5.67 5.36 4.95 5.76LR Liberia 6′ 30″ N9′ 30″ W 5.43 5. 72 5.59 5.31 5.11 4.61 4 .25 4.19 4.67 5.13 5 .24 5 .2 5.03KE Nairobi 1′ 16″ S36′ 48″ E 6.05 6 .24 6.07 5.7 5.42...

handbook for electrical engineers hu (11)

... 20 10 20 15 20 20 20 250501001507895103111119Million barrels per daySources: History: Energy information administration (EIA), International Energy Annual 20 02, DOE/EIA- 021 9 (20 02) (Washington, ... . . . . . . 12- 5 12. 2 .2 Fossil Fuel Resources . . . . . . . . . . . . . . . . . . . . . . . 12- 5 12. 2.3 Nuclear Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12- 7 12. 2.4 Hydroelectric ... electrical loads can cause predictions to be off.ELECTRIC POWER SYSTEM ECONOMICS 12- 11FIGURE 12- 5 Net generation by energy source in the U.S.19 92 1994 1996 1998 20 00 20 02 20041,000,0000 2, 000,000...

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