EL +8200 EL+6200 EL -1100 EL 0 Gambar 4.64 Tampak depan pemodelan CADWorx Plants daerah turbin uap 202
EL +12500 EL +7000 EL +5000 EL 0 EL -4000 Gambar 4.65 Tampak depan pemodelan CADWorx Plants daerah cooling tower 203
Separator Gambar 4.66 Pemodelan Separator 204
Generator Turbin uap Kondensator Gambar 4.67 Pemodelan turbin uap, generator dan kondensator 205
Hot well pump A Hot well pump B Gambar 4.68 Pemodelan hotwell pump 206
Cooling tower Condensate pond Gambar 4.69 Pemodelan cooling tower 207
Steam jet ejector Gambar 4.70 Pemodelan steam jet ejector 208
209 4.7 Efisiensi PLTP keseluruhan Efisiensi keseluruhan diperoleh dari daya yang dibangkitkan dikurangi penggunaan daya pada alat-alat dibandingkan dengan jumlah daya yang masuk dari sumber uap. Dimana : η = W W W W % w turbin = daya yang dibangkitkan oleh turbin (kw); = 3.210 kw w pompa = daya untuk menggerakkan pompa (kw); = W ph + W pr + W pa + W pv W ph W pr W pa W pv = daya untuk menggerakkan pompa hotwell (90 kw); = daya untuk menggerakkan pompa reinjeksi (11 kw); = daya untuk menggerakkan pompa auxiliary cooling water (1,5 kw); = daya untuk menggerakkan pompa liquid ring vacuum (0,75kW); w kipas = daya untuk menggerakkan motor kipas pada cooling tower ( 2 x 20 kw); W 100% = potensi daya keluaran saat pembangkit bekerja 100% (kw); = h 1 x m = 2760 kj/kg x 8,55 kg/s = 23.598 kw η = 3.210 (90 + 11 + 1,5 + 0,75) (2x20) 23.598 = 3.066,75 23.598 = 0,13 = 13 % Efisiensi keseluruhan dari PLTP Kamojang 68 sebesar 13 %. Nilai efisiensi ini berada pada rentang efisiensi PLTP yaitu 10-17 %. (Moon, 2012)
210 4.8 Detail spesifikasi alat utama Detail spesifikasi alat utama diambil berdasarkan peralatan yang ada di pasar dan merupakan produk dari manufaktur. Peralatan utama yaitu a. Steam turbine Gambar 4.71 Steam turbine drawing
b. Kondensator Gambar 4.72 Kondensator drawing 01 211
Gambar 4.73 Kondensator drawing 02 212
c. Cooling tower Gambar 4.74 Cooling tower drawing 213
214 4.9 Bill of material Bill of material diperoleh dari pemodelan CADWorx Plants. Ditampilkan sebagai berikut : Tabel 4.36 Bill of Material No. QTY SIZE (inch) BILL OF MATERIAL DESCRIPTION LENGTH (mm) Price 1 1 1/2" PIPE, S/STD SMLS, ASTM A-106 GR B 78.765 1.250.000 2 1 3/4" PIPE, S/XS SMLS, ASTM A-106 GR B 21.529 380.000 3 1 1" PIPE, S/XS SMLS, ASTM A-106 GR B 161.408 4.660.000 4 1 1-1/2" PIPE, S/XS SMLS, ASTM A-106 GR B 15.973 525.000 5 1 2" PIPE, S/STD SMLS, ASTM A-106 GR B 307.313 17.500.000 6 1 2-1/2" PIPE, S/STD SMLS, ASTM A-106 GR B 1.765 387.500 7 1 3" PIPE, S/STD SMLS, ASTM A-106 GR B 264.258 33.960.000 8 1 4" PIPE, S/STD SMLS, ASTM A-106 GR B 81.092 13.260.000 9 1 6" PIPE, S/STD SMLS, ASTM A-106 GR B 200.273 19.610.000 10 1 8" PIPE, S/STD SMLS, ASTM A-106 GR B 41.080 9.100.000 11 1 10" PIPE, S/STD SMLS, ASTM A-106 GR B 31.740 9.800.000 12 1 12" PIPE, S/STD SMLS, ASTM A-106 GR B 499 4.250.000 13 1 14" PIPE, S/STD SMLS, ASTM A-106 GR B 181.860 72.000.000 14 1 18" PIPE, S/STD SMLS, ASTM A-106 GR B 61.887 28.400.000 15 1 24" PIPE, S/STD SMLS, ASTM A-106 GR B 24.172 12.100.000 16 32 1/2" ELL, 90 LR S/STD, ASTM A-234 GR WPB 427.200 17 100 1" ELL, 90 LR S/XS, ASTM A-234 GR WPB 3.410.000 18 19 1 1/2" ELL, 90 LR S/XS, ASTM A-234 GR WPB 1.010.000 19 50 2" ELL, 90 LR S/STD, ASTM A-234 GR WPB 3.500.000 20 2 2 1/2" ELL, 90 LR S/STD, ASTM A-234 GR WPB 300.000 21 62 3" ELL, 90 LR S/STD, ASTM A-234 GR WPB 9.500.000 22 33 4" ELL, 90 LR S/STD, ASTM A-234 GR WPB 7.095.000 23 26 6" ELL, 90 LR S/STD, ASTM A-234 GR WPB 14.560.000 24 8 8" ELL, 90 LR S/STD, ASTM A-234 GR WPB 5.280.000 (Rp)
No. QTY SIZE (inch) DESCRIPTION LENGTH (mm) Price (Rp) 25 4 10" ELL, 90 LR S/STD, ASTM A-234 GR WPB 3.000.000 26 26 14" ELL, 90 LR S/STD, ASTM A-234 GR WPB 23.400.000 27 5 18" ELL, 90 LR S/STD, ASTM A-234 GR WPB 5.000.000 28 5 24" ELL, 90 LR S/STD, ASTM A-234 GR WPB 8.750.000 29 8 2" x 1" ELL, 90 RED S/XS, ASTM A-234 GR WPB 1.200.000 30 6 2" x 1" ELL, 90 RED S/STD, ASTM A-234 GR WPB 1.050.000 31 1 4" x 2" ELL, 90 RED S/STD, ASTM A-234 GR WPB 350.000 32 2 6" x 4" ELL, 90 RED S/STD, ASTM A-234 GR WPB 1.000.000 33 1 8" x 4" ELL, 90 RED S/STD, ASTM A-234 GR WPB 600.000 34 1 8" x 6" ELL, 90 RED S/STD, ASTM A-234 GR WPB 680.000 35 8 1/2" TEE, STR. S/STD, ASTM A-234 GR WPB 412.000 36 2 1" TEE, STR. S/XS,ASTM A-234 GR WPB 200.000 37 10 1-1/2" TEE, STR. S/XS,ASTM A-234 GR WPB 1.500.000 38 15 2" TEE, STR. S/STD, ASTM A-234 GR WPB 2.745.000 39 11 3" TEE, STR. S/STD, ASTM A-234 GR WPB 3.291.750 40 4 4" TEE, STR. S/STD, ASTM A-234 GR WPB 1.728.000 41 2 6" TEE, STR. S/STD, ASTM A-234 GR WPB 1.494.000 215
No. QTY SIZE (inch) DESCRIPTION LENGTH (mm) Price (Rp) 42 5 8" TEE, STR. S/STD, ASTM A-234 GR WPB 5.640.000 43 1 10" TEE, STR. S/STD, ASTM A-234 GR WPB 1.375.000 44 7 14" TEE, STR. S/STD, ASTM A-234 GR WPB 12.250.000 45 4 14" ELL, 45 LR S/STD, ASTM A-234 GR WPB 6.000.000 46 6 18" ELL, 45 LR S/STD, ASTM A-234 GR WPB 12.000.000 47 10 2"x3/4" TEE, REDUCING S/XS, ASTM A-234 GR WPB 2.000.000 48 8 2"x1" TEE, REDUCING S/XS, ASTM A-234 GR WPB 1.628.000 49 16 3"x1" TEE, REDUCING S/XS, ASTM A-234 GR WPB 5.600.000 50 2 4"x2" TEE, REDUCING S/STD, ASTM A-234 GR WPB 1.000.000 51 1 14"x6" TEE, REDUCING S/STD, ASTM A-234 GR WPB 1.600.000 52 1 14"x10" TEE, REDUCING S/STD, ASTM A-234 GR WPB 1.800.000 53 1 18"x8" TEE, REDUCING S/STD, ASTM A-234 GR WPB 2.100.000 54 1 24"x18" TEE, REDUCING S/STD, ASTM A-234 GR WPB 2.500.000 55 3 6"x4" TEE, REDUCING S/STD, ASTM A-234 GR WPB 2.850.000 56 5 8"x4" TEE, REDUCING S/STD, ASTM A-234 GR WPB 7.250.000 57 6 8"x6" TEE, REDUCING S/STD, ASTM A-234 GR WPB 90.000.000 58 12 1"x3/4" REDUCER, CONC S/XS, ASTM A-234 GR WPB 720.000 216
No. QTY SIZE (inch) DESCRIPTION LENGTH (mm) Price (Rp) 59 1 2"x1 1/2" REDUCER, CONC S/XS, ASTM A-234 GR WPB 145.000 60 1 2"x1" REDUCER, CONC S/XS, ASTM A-234 GR WPB 150.000 61 1 3" x 1" REDUCER, CONC S/STD, ASTM A-234 GR WPB 175.000 62 1 6" x 2" REDUCER, CONC S/STD, ASTM A-234 GR WPB 375.000 63 1 8" x 3" REDUCER, CONC S/STD, ASTM A-234 GR WPB 600.000 64 2 14"x10" REDUCER, CONC S/STD, ASTM A-234 GR WPB 2.500.000 65 1 14"x12" REDUCER, CONC S/STD, ASTM A-234 GR WPB 1.400.000 66 2 24" x 18" REDUCER, CONC S/STD, ASTM A-234 GR WPB 3.600.000 67 3 3" CAP, S/STD, ASTM A-234 GR WPB 1.200.000 68 4 2" CROSS, STR S/STD, ASTM A-234 GR WPB 5.000.000 69 2 18" LATERAL, 45 S/STD, ASTM A-234 GR WPB 4.000.000 70 1 2-1/2" LATERAL, 45 S/STD, ASTM A-234 GR WPB 900.000 71 7 1" FLG, RFWN 150LB S/XS BORE, ASTM A-105 595.000 72 7 2" FLG, RFWN 150LB S/XS BORE, ASTM A-105 1.225.000 73 10 10" FLG, RFWN 150LB S/STD BORE, ASTM A-105 12.500.000 74 1 12" FLG, RFWN 150LB S/STD BORE, ASTM A-106 1.500.000 75 26 14" FLG, RFWN 150LB S/STD BORE, ASTM A-107 45.500.000 217
MARK QTY SIZE (inch) DESCRIPTION LENGTH (mm) Price (Rp) 76 5 1/2" BALL VALVE, 150LB FLG 225.000 77 6 4" BALL VALVE, 150LB FLG 21.000.000 78 5 1/2" CHECK VALVE, 150LB FLG 2.500.000 79 1 2-1/2" CHECK VALVE, 150LB FLG 1.300.000 80 5 2" CHECK VALVE, 150LB FLG 6.000.000 81 3 3" CHECK VALVE, 150LB FLG 4.500.000 82 8 4" CHECK VALVE, 150LB FLG 36.000.000 83 4 6" CHECK VALVE, 150LB FLG 22.000.000 84 2 8" CHECK VALVE, 150LB FLG 13.000.000 85 1 1/2" GATE VALVE, 150LB FLG 500.000 86 1 2" GATE VALVE, 150LB FLG 1.500.000 87 4 3" GATE VALVE, 150LB FLG 6.400.000 88 6 4" GATE VALVE, 150LB FLG 24.000.000 89 4 6" GATE VALVE, 150LB FLG 25.600.000 90 4 8" GATE VALVE, 150LB FLG 30.000.000 91 4 10" GATE VALVE, 150LB FLG 34.000.000 92 10 14" GATE VALVE, 150LB FLG 96.000.000 218
93 3 18" GATE VALVE, 150LB FLG 33.000.000 94 10 1-1/2" GATE VALVE, 800LB FLG 11.750.000 95 5 1" GATE VALVE, 800LB FLG 6.000.000 96 1 2" GATE VALVE, 800LB SW 2.000.000 97 5 1/2" GLOBE VALVE, 150LB FLG 2.500.000 98 10 2" GLOBE VALVE, 150LB FLG 15.000.000 99 1 2-1/2" GLOBE VALVE, 150LB FLG 1.600.000 100 1 3" GLOBE VALVE, 150LB FLG 1.600.000 101 6 4" GLOBE VALVE, 150LB FLG 24.000.000 102 2 6" GLOBE VALVE, 150LB FLG 12.800.000 103 2 8" GLOBE VALVE, 150LB FLG 15.000.000 104 11 1" GLOBE VALVE, 800LB FLG 13.200.000 105 1 3" CONTROL VALVE, 150LB FLG. 1.600.000 106 48 1" CONTROL VALVE, 800LB FLG. 64.800.000 107 5 1/2" STRAINER, 150LB FLG. 600.000 108 4 2" STRAINER, 150LB FLG. 1.200.000 109 2 4" STRAINER, 150LB FLG. 800.000 110 4 8" STRAINER, 150LB FLG. 2.400.000 218
MARK QTY SIZE (inch) DESCRIPTION LENGTH (mm) Price (Rp) 111 4 18" JOINT, EXPANSION, 150LB, FLG 32.000.000 112 1 2-1/2" JOINT, EXPANSION, 150LB, FLG 1.000.000 113 8 4" JOINT, EXPANSION, 150LB, FLG 16.000.000 114 4 6" JOINT, EXPANSION, 150LB, FLG 14.800.000 115 4 8" JOINT, EXPANSION, 150LB, FLG 20.000.000 116 1 1" PRESSURE INDICATOR 102 750.000 117 1 1 PRESSURE INDICATING CONTROLLER 750.000 118 3 1 PRESSURE SAFETY VALVE 2.250.000 119 2 1 FLOW INDICATOR 1.500.000 120 1 1 LEVEL INDICATOR 750.000 121 1 1 LEVEL GAUGE 750.000 122 2 1 TEMPERATURE INDICATOR 1.500.000 123 4 1 PRESSURE INDICATOR 3.000.000 124 1 14" ORIFICE PLATE 3.000.000 125 1 14" PRESSURE REDUCING VALVE 3.000.000 126 1 14 STEAM TURBINE B3-3.43/0.29 2.975.000.000 127 1 14 SEPARATOR DIDION COMPANY 1.020.000.000 219
MARK QTY SIZE (inch) DESCRIPTION LENGTH (mm) Price (Rp) 128 1 3 STEAM JET EJECTOR SCHUTTE & KOERTING 350.000.000 129 1 KONDENSATOR 1.250.000.000 130 1 COOLING TOWER 1.500.000.000 131 1 POMPA CENTRIFUGAL TORISHIMA CA 32-160 300.000.000 132 1 POMPA CENTRIFUGAL TORISHIMA CA 32-125 350.000.000 133 1 POMPA CENTRIFUGAL TORISHIMA CA 80-160 425.000.000 134 1 POMPA LIQUID RING VACUUM NASH P2620 400.000.000 TOTAL 9.771.500.000 220