Advanced Gas Turbine Cycles Episode 5 potx

... 4. Cycle eficiency with turbine cooling (cooling flow rates specified) 61 55 50 ae > 0 z 45 w 0 k40 W -1 3 35 F 0 30 25 20 1 1 .5 2 2 .5 3 3 .5 4 ISENTROPIC TEMPERATURE ... Fig. 4.12 shows 50 I I I I I I I I 49 48 A E 47 * 0 3 46 - 0 t 45 W 4 iY 9 43 0 42 41 40 15 20 25 30 35 40 45 50 55 PRESSURE RATIO F...

Ngày tải lên: 13/08/2014, 15:21

... 183 Cooling air fractions, 57 , 65, 71-84, 184- 187 air-standard cycles, 48 -55 , 5 I, 54 -59 effectiveness, 1 85 efficiency, 72-73, 183, 186 flow fraction, 60, 65, 187 mixing processes, ... B .5. If the carbon dioxide tax is set at $50 /tonne of C02 (5 ckg C02), then there is an additional amount of (0.3 x 5) = 1 .5 ckWh to be 0.2 0. 25 0.3 0. 35...

Ngày tải lên: 13/08/2014, 15:21

... Description of the LMS100 and its features 9 0 50 100 150 200 250 300 350 1 1,2 1,4 1,6 1,8 2 2,2 2,4 2,6 2,8 ω[kJ/kg] θ =5 θ=4 ,5 θ=4 θ=3 ,5 1 κ κ π 1− Figure 4: Dependence of the specific ... Description of the LMS100 and its features 13 0 1000 2000 3000 4000 50 00 6000 7000 8000 9000 0 50 100 150 200 250 300 350 400 Plant Output (MW) Dispatch Hours/Year Multiple unit...

Ngày tải lên: 08/08/2014, 11:21

... 1, but for the value around 2. 0 10 20 30 40 50 60 1 1, 25 1 ,5 1, 75 2 2, 25 2 ,5 2, 75 3 πT =5 πT=10 πT= 15 πT=20 πT= 25 πT=30 πT= 35 πT=40 πT= 45 πT =50 Max LPC π [] % th η Figure 26: GateCycle Results ... [] % th η 0 10 20 30 40 50 60 0 5 10 15 20 25 30 35 40 45 50 n=0 n=0,1 n=0,2 n=0,3 n=0,4 n=0 ,5 n=0,6 n=0,7 n=0,8 n=0,9 n=1 T π Figure 20: Thermal efficien...

Ngày tải lên: 08/08/2014, 11:21

... 4 .5. Cycle calculations with turbine cooling 65 Conclusions 68 References 69 Chapter 5 . Full calculations of plant efficiency 71 5. 1. 5. 2. 5. 2.1. 5. 2.2. 5. 2.3. 5. 3. ... 1.8, 2.1, 2.2, 2.3, 2.4, 2 .5, 7.3, 7 .5, 7.6, 9 .5. American Society of Mechanical Engineers: Figs. 4.1, 4.2, 4.3, 4.4, 4 .5, 4.6, 4.7, 4.11, 4.12 ,5. 4 ,5. 6 ,5. 9 ,5. 10 ,5. 11,...

Ngày tải lên: 13/08/2014, 15:21

... - 7, 5 7 T q= 1 - = 1 - G. (1.19) 1 .5. Modifications of gas turbine cycles to achieve higher thermal efficiency There are several modifications to the basic gas turbine ... search for high efficiency, the designer of a gas turbine power plant will attempt 1.4. Limitations of other cycles Conventional gas turbine cycles do not achieve Carnot ef...

Ngày tải lên: 13/08/2014, 15:21

... Thermal efficiency of [CHT], cycle. W m 0 .5 i 0. 05 P 0 -1 -0. 75 -0 .5 -0. 25 0 0. 25 0 .5 0. 75 1 1. 25 1 .5 1. 75 2 2. 25 2 .5 2. 75 3 3. 25 3 .5 3. 75 ISENTROPIC TEMPERATURE RATIO [XI Fig. 3.8. ... T4) -I- Cp(1 - E)(T4 - Tz), 0 .5 0. 45 0.4 0. 35 > W 0.3 0 k 0. 25 x Y i 0.2 w x c 0. 15 0.1 0. 05 0 1 1 .5 2 2 .5...

Ngày tải lên: 13/08/2014, 15:21

... 1 - (Ap/p)23. Similarly, the pressure loss 44 Advanced gas turbine cycles 55 50 48 5 tiu 2 $ 35 Ym 4 Y Y 2 25 z 20 15 10 800 800 looo 1200 1400 1600 1800 Moo 2200 ... Section 4.4. Chapter 3. Basic gas turbine cycles 45 0 10 20 30 40 50 60 PRESSURE RATIO Fig. 3. 15. Overall efficiencies of several irreversible gas turbine...

Ngày tải lên: 13/08/2014, 15:21

... T3/T1 = 5 I" q= 1 -x /a, 80 Advanced gas turbine cycles tTcot=1200C +Tcot=1400C -A-Tcot=IeoOC fTcot=1800C + Tcot = 2000 C 15 20 25 30 35 40 4s 50 55 PRESSURE ... combustion temperature and pressure ratio. 46 45 41 40 200 250 300 350 400 450 50 0 55 0 600 650 SPECIFIC WORK [kJlkg exhaust gas] Fig. 5. 9. Overall efficie...

Ngày tải lên: 13/08/2014, 15:21

... 2001-GT-343. 106 Advanced gas turbine cycles 55 .5 55 54 .5 E G y 53 !!4 z ; 55 .5 Y Y 52 .5 > 0 52 51 .5 51 400 450 50 0 55 0 600 850 700 750 SPECIFIC WORK [kJlkg ... obtain efficiencies about 2% higher 57 .5 57 56 .5 * 0 z w56 u LL Y W -I 55 .5 ii w 55 54 .5 54 50 0 55 0 600 650 700 750 800 850 900 950 SPECIFI...

Ngày tải lên: 13/08/2014, 15:21