Logo STEAM TURBINE CALCULATION SHEET STEAM CONSUMPTION No. Designation .

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STEAM TURBINE CALCULATION SHEET Logo Page : 1 STEAM CONSUMPTION Designation No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Note and additional information Quantity ADMISSION TURBINE CURTIS REACTION Control stage : Curtis CONDENSING TURBINE Turbine type REQUIRED CONDITION Steam flow available, m N pi ti Admitted pressure Admitted steam mass flow, ma po ton/hr RPM bar A C bar A ton/hr bar A Normal 15 7000 100 550 40 5 0.12 Impulse Rated m Reaction Admitted steam ma mR STEAM DATA hi hos Δhs Governor valve factor Δhs' hos' pi' ti' kJ/kg kJ/kg kJ/kg kJ/kg kJ/kg bar A C 3 m /kg 3490 2155 1335 0.97 1295.0 2195.1 80 540 See steam Mollier diagram See steam Mollier diagram hi - hos Multi valve 0.97, single valve 0.93 Gov. vlv. Factor x Δhs (equation 11) See diagram 0.0444 See steam table at pi' and ti' 25 26 27 28 29 30 vi' Control Stage poIMP bar A 40 31 hos'IMP kJ/kg 3265 32 33 34 35 36 Head, Δh'IMP Calc. diameter at best eff. Selected dia., D Peripheral velocity, U Head coefficient, μS kJ/kg mm mm m/s 225 506.75 500 183.6 6.7 37 hos'IMP kJ/kg 3265.0 hi - Δh'IMP 38 39 40 41 42 43 44 45 46 Efficiency, η05 0.71 34 Figure 12 0.725 25 0.029 0.93 0.799 0.53 Equation 15 but replace P by (Δhs' x m x η05 ) CALCULATION Entrance area factor, A Ixε Nozzle height, I ε Efficiency factor FI Efficiency factor Fe Efficiency, ηIMP mm Equation in fig. 9 Decide D, smaller than calculated Equation 1 Select I so that ε within the range below 0.015 - 0.45 for welded, min. 0.07 reaming Figure 13 Equation in figure 13 η05 x FI x Fε

STEAM TURBINE CALCULATION SHEET Logo Designation No. Quantity ΔheIMP kJ/kg 118.4 η x ΔhIMP 2 3 heIMP Exhaust temperature, to 3371.6 470 See steam Mollier diagram 4 0.0825 See steam table 5 Exhaust specific volume, vo PLOSS kJ/kg C 3 m /kg kW 50.19 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Control stage power, PIMP Reaction Stages Reaction stage steam flow, mR hi hos' ΔhsR Pitch diameter, D Base diameter Average blade height, I D/I S/I Calculated number of stages Peripheral velocity, U Steam velocity, C Velocity ratio, U/C ΔhsRSTG kW 443.3 Equation 5 (m x ΔheIMP / 3.6) - PLOSS ton/hr kJ/kg kJ/kg kJ/kg mm mm mm 20.0 3371.6 2235 1136.55 720 630 90 8 0.40 17 264.3 365.5 0.72 66.9 22 ηR kJ/kg ΔheR kJ/kg 966.07 24 25 26 27 kJ/kg 2405.5 0.940 2720.0 0.990 28 heR X Wet enthapy , Hwet Wet eficiency, ηWET Reaction stages efficiency, η 29 Reaction stages power, PR kW 5314.6 30 Reaction impulse power kW 5757.971 31 32 33 34 35 36 Mechanical efficiency, ηm BHP See fig. 11, at required speed, select pitch and base diameter 0.2 LP blade, 0.4 MP and 0.6 HP Eq. 12a (integer number) 0.85 23 kJ/kg 0.84 Equation 7. ηR x ηWET mR x ΔhsR x η PR PIMP 0.983 kW 5661.5 2 Note and additional information 1 m/s m/s Page : (PR PIMP ) x ηm

STEAM TURBINE CALCULATION SHEET Logo A B D B1 hos' 2899 hos 2890 C Page : 3

STEAM TURBINE CALCULATION SHEET Logo Page : 1 STEAM CONSUMPTION Designation No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ADMISSION TURBINE RATEAU REACTION Control stage : Rateau CONDENSING TURBINE Turbine type REQUIRED CONDITION Steam flow available, m N pi ti Admitted pressure Admitted steam mass flow po STEAM DATA hi hos Δhs Governor valve factor Δhs' hos' pi' ti' Impulse ton/hr RPM bar A C ton/hr bar A kJ/kg kJ/kg kJ/kg Normal 45 6000 100 550 40 10 0.12 Reaction Rated m Admitted steam ma mR 3490 2155 1335 0.97 1294.95 2195.05 80 540 See steam Mollier diagram, point A. See steam Mollier diagram, point C hi - hos Multi valve 0.97, single valve 0.93 Gov. vlv. Factor x Δhs (equation 11) See diagram, point B1 0.0444 See steam table at pi' and ti' 24 25 26 27 28 vi' kJ/kg kJ/kg bar A C 3 m /kg CALCULATION Control Stage poIMP bar A 40 29 hos'IMP kJ/kg 3265 30 31 32 33 34 Head, Δh'IMP Selected dia., D Peripheral velocity, U Number of stage, z Head coefficient, μS kJ/kg mm m/s 225 700 220.3 2 2.3 35 36 37 38 39 40 41 42 43 Efficiency, η05 44 45 Note and additional information Quantity Fig. 10, near cross poit N and red dot line Equation 1 0.82 34 Entrance area factor, A Ixε Nozzle height, I ε Efficiency factor FI Efficiency factor Fe Efficiency, ηIMP mm 0.577 25 0.023 0.97 0.891 0.706 Equation 15 Select I so that ε within the range below 0.015 - 0.45 for welded, min. 0.07 reaming Figure 13 Equation in figure 13 η05 x FI x Fε ΔheIMP kJ/kg 158.8 ηIMPx Δh'IMP

STEAM TURBINE CALCULATION SHEET Logo Designation No. Quantity heIMP Exhaust temperature, to 3 4 Exhaust specific volume, vo PLOSS 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Control stage power, PIMP Reaction Stages Reaction stage steam flow, mR hi hos' ΔhsR Pitch diameter, D Base diameter Average blade height, I D/I S/I Calculated number of stages Peripheral velocity, U Steam velocity, C Velocity ratio, U/C ΔhsRSTG 21 ηR 22 ΔheR' kJ/kg 977.82 23 24 kJ/kg 2353.3 0.900 2730 0.981 26 heR X Wet enthalpy Wet eficiency, ηWET Reaction stages efficiency, η 27 Reaction stages power, PR kW 14651 mR x ΔhsR x η 28 Reaction impulse power kW 16506 PR PIMP 29 30 31 32 33 34 Mechanical efficiency, ηm 25 BHP 3331.2 450 kW 130.59 kW 1854.9 ton/hr kJ/kg kJ/kg kJ/kg mm mm mm 55.0 3331.2 2220 1111.16 750 630 120 6 0.40 21 236.0 325.2 0.73 52.9 m/s m/s kJ/kg 0.08 Than make steam process in Mollier diagr. See steam Mollier diagram See steam table Equation 5 (m x ΔheIMP / 3.6) - PLOSS See fig. 11, at required speed, select pitch and base diameter 0.2 LP blade, 0.4 MP and 0.6 HP Eq. 12a (integer number) 0.880 kJ/kg 0.86 ηR x ηWET 0.995 kW 16424 2 Note and additional information 1 2 kJ/kg C 3 m /kg Page : (PR PIMP ) x ηm

STEAM TURBINE CALCULATION SHEET Logo A B D hos' 2899 hos 2890 C B1 Page : 3

13 po bar A 0.12 14 15 STEAM DATA 16 hi kJ/kg 3490 See steam Mollier diagram, point A. 17 hos kJ/kg 2155 See steam Mollier diagram, point C 18 Δhs kJ/kg 1335 hi - hos 19 Governor valve factor 0.97 Multi valve 0.97, single valve 0.93 21 hos' kJ/kg 2195.05 See diagram, point B1 22 pi' bar A 80 23 ti' C 540 24 vi' m 3/kg 0.0444 See steam table .

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