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RINCIAN               INPUT           OUTPUT       UNIT
Panjang, l                                     100                   cm
Lebar, w                                       100                   cm
Tinggi, h                                      100                   cm
Volume, V                                                   1000    Liter

Pelat Baja Tahan Karat
Luas pelat badan tungku, Ap                               10000     cm^2
Tebal pelat, tp                                  2                   mm
Volume pelat, Vp                                            2000    cm^3
Jenis bahan pelat                 Baja Tahan Karat
Berat jenis pelat, ρp                         7.93                 kg/dm^3
Total berat pelat, Wp                                       15.9      kg
Harga per kg                               75,000                   Rupiah
Total Harga Pelat                                      1,189,500   Rupiah

Baja Pelat
Luas pelat badan tungku, Ab                               50000     cm^2
Tebal pelat, tb                                  2                   mm
Volume pelat, Vb                                          10000     cm^3
Jenis bahan pelat                   Baja Karbon
Berat jenis pelat, ρb                         7.93                 kg/dm^3
Total berat pelat, Wb                                       79.3      kg
Harga per kg                               16,000                   Rupiah
Total Harga Pelat                                      1,268,800   Rupiah

Besi Siku
Jenis besi siku                                  5                   cm
Panjang besi siku badan tungku                              1200     cm
Panjang besi siku rangka tungku                              800     cm
Total berat besi siku, Wb                                     78     kg
Harga per kg                               25,000                  Rupiah
Total Harga Besi Siku                                  1,950,000   Rupiah

Glass Wool
Luas glass wool, Ag                                       60000      cm^2
Tebal glass wool, tg                             5                    cm
Volume glass wool, Vg                                    300000      cm^3
Berat jenis glass wool, ρg                     0.05                kg/dm^3
Total berat glass wool, Wg                                    15      kg
Harga per kg                               50,000                   Rupiah
Total Harga Glass Wool                                  750,000    Rupiah

BTA
Jenis                                 SK. 34
Panjang                                          23                  cm
Lebar                                          11.5                  cm
Tebal                                           6.5                  cm

Kebutuhan BTA                                                227    buah
Harga per buah                             13,500                  Rupiah
Total Harga BTA                                        3,062,382   Rupiah
Semen Tahan Api
Jenis                             SK. 36
Semen Tahan Api, 20% Luas badan                    12000     cm^2
Berat jenis semen tahan api, ρs            2.2             kg/dm^3
Total berat semen tahan api, Ws                     26.4      kg
Harga per kg                           5,000                Rupiah
Total Harga Semen Tahan Api                      132,000   Rupiah
RINCIAN        INPUT           OUTPUT        UNIT

Target temperatur max, Tmax           1200                       oC
Volume furnace, Vu                    1000                      dm^3
Berat jenis udara, ρu                     0                   kg/dm^3
Massa udara, mu                        1.22                       kg
Panas jenis udara                   144.17                    cal/kg.oF
Jumlah panas, Q                                       448.3     watt

Daya listrik, W                          75                    KVA
Biaya listrik per KVA                1,000                    Rupiah
Total Biaya listrik                                 75,000    Rupiah

Arus listrik, I                                       340.9   Ampere

Elemen Pemanas
Diameter kawat elemen, de                   4                   mm
Luas penampang kawat, Ae                             0.0013    dm^2
Jenis bahan elemen               Kanthal
Tahanan jenis, ρ                            0                 ohm.dm
Tahanan Listrik, R                                     13.9    ohm

Panjang total kawat elemen, Le                        158.6      m

Volume, Ve                                             1.99    dm^3
Berat jenis, ρe                            8.2                kg/dm^3
Total berat kawat elemen, Wt                          16.33      kg

Harga per kg                     1,200,000                    Rupiah
Total Harga                                      19,596,218   Rupiah
RINCIAN            INPUT       OUTPUT     UNIT
Batang Keramik
Diameter lilitan, D                  40                mm
Jumlah batang lilitan, Nb             5               buah
Jumlah group, Ng                      3               buah
Jumlah dinding pemanas, Nd            2               buah
Panjang batang                                13.3     cm

Keliling lilitan, k                          125.6    mm
Panjang batang lilitan, Lb                    1000    mm
Jarak antar lilitan, pl               5               mm
Jumlah lilitan, Nl                            26.7   buah

Panjang kawat elemen, Le                      3.35     m
Check Panjang Total Kawat:                  100.48     m      :   158.56 m   ok !

Alumina
Volume alumina                               125.6    cm^3
Berat jenis alumina                 3.8             kg/dm^3
Total berat alumina                            14.3    kg
Harga per kg                    15,000               Rupiah
Total Harga                                214,776 Rupiah

Binder
Jenis                        Waterglass
Binder-4% berat alumina                        5.7     kg
Harga per kg                      7,500              Rupiah
Total Harga                                 42,955   Rupiah
No.           RINCIAN           SPESIFIKASI     JUMLAH KEBUTUHAN
 1    Pelat Baja Tahan Karat       2      mm              15.86 kg
 2    Baja Pelat                   2      mm              79.30 kg
 3    Besi Siku                    5      cm                 78 kg
 4    Glass Wool                   5      cm                 15 kg
 5    BTA                        SK. 34                     227 buah
 6    Semen Tahan Api            SK. 36                    26.4 kg
 7    Elemen Pemanas            Kanthal                   16.33 kg
 8    Batang Keramik            Alumina                    14.3 kg
 9    Binder                   Waterglass                    5.7 kg
10    Temperatur Kontrol
11    Komponen Lain
12    Biaya Manufaktur (30%)              0.3
13    Fee Engineering (30%)               0.3
14    Pajak (10%)                         0.1

                                     TOTAL BIAYA, Rp.
HARGA/UNIT   HARGA TOTAL
  75,000         1,189,500
  16,000         1,268,800
  25,000         1,950,000
  50,000           750,000
  13,500         3,062,382
   5,000           132,000
 1,200,000      19,596,218
  15,000           214,776
   7,500            42,955
                10,000,000
                 2,000,000
                11,681,349
                11,681,349
                 3,893,783

                67,463,113
RINCIAN                   INPUT OUTPUT
Target temperatur max, Tmax (oC)         1200
Volume furnace, V (dm^3)                 1000
Berat jenis udara, ρ (kg/dm^3)               0
Massa udara, mu (kg)                      1.22
Panas jenis udara, (cal/kg.oF)         144.17
Jumlah panas, Q (watt)                           448.3

Panjang total kawat elemen, Lt (dm)     158.6
Luas penampang kawat, A (dm^2)         0.0013
Tahanan jenis, ρ (ohm.dm)                   0
Tahanan Listrik, R (ohm)               13.89
Arus listrik, I (A)                              340.9
Daya listrik, W (KVA)                             75.0

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Perancangan tungku pemanas (AA)

  • 1. RINCIAN INPUT OUTPUT UNIT Panjang, l 100 cm Lebar, w 100 cm Tinggi, h 100 cm Volume, V 1000 Liter Pelat Baja Tahan Karat Luas pelat badan tungku, Ap 10000 cm^2 Tebal pelat, tp 2 mm Volume pelat, Vp 2000 cm^3 Jenis bahan pelat Baja Tahan Karat Berat jenis pelat, ρp 7.93 kg/dm^3 Total berat pelat, Wp 15.9 kg Harga per kg 75,000 Rupiah Total Harga Pelat 1,189,500 Rupiah Baja Pelat Luas pelat badan tungku, Ab 50000 cm^2 Tebal pelat, tb 2 mm Volume pelat, Vb 10000 cm^3 Jenis bahan pelat Baja Karbon Berat jenis pelat, ρb 7.93 kg/dm^3 Total berat pelat, Wb 79.3 kg Harga per kg 16,000 Rupiah Total Harga Pelat 1,268,800 Rupiah Besi Siku Jenis besi siku 5 cm Panjang besi siku badan tungku 1200 cm Panjang besi siku rangka tungku 800 cm Total berat besi siku, Wb 78 kg Harga per kg 25,000 Rupiah Total Harga Besi Siku 1,950,000 Rupiah Glass Wool Luas glass wool, Ag 60000 cm^2 Tebal glass wool, tg 5 cm Volume glass wool, Vg 300000 cm^3 Berat jenis glass wool, ρg 0.05 kg/dm^3 Total berat glass wool, Wg 15 kg Harga per kg 50,000 Rupiah Total Harga Glass Wool 750,000 Rupiah BTA Jenis SK. 34 Panjang 23 cm Lebar 11.5 cm Tebal 6.5 cm Kebutuhan BTA 227 buah Harga per buah 13,500 Rupiah Total Harga BTA 3,062,382 Rupiah
  • 2. Semen Tahan Api Jenis SK. 36 Semen Tahan Api, 20% Luas badan 12000 cm^2 Berat jenis semen tahan api, ρs 2.2 kg/dm^3 Total berat semen tahan api, Ws 26.4 kg Harga per kg 5,000 Rupiah Total Harga Semen Tahan Api 132,000 Rupiah
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  • 5. RINCIAN INPUT OUTPUT UNIT Target temperatur max, Tmax 1200 oC Volume furnace, Vu 1000 dm^3 Berat jenis udara, ρu 0 kg/dm^3 Massa udara, mu 1.22 kg Panas jenis udara 144.17 cal/kg.oF Jumlah panas, Q 448.3 watt Daya listrik, W 75 KVA Biaya listrik per KVA 1,000 Rupiah Total Biaya listrik 75,000 Rupiah Arus listrik, I 340.9 Ampere Elemen Pemanas Diameter kawat elemen, de 4 mm Luas penampang kawat, Ae 0.0013 dm^2 Jenis bahan elemen Kanthal Tahanan jenis, ρ 0 ohm.dm Tahanan Listrik, R 13.9 ohm Panjang total kawat elemen, Le 158.6 m Volume, Ve 1.99 dm^3 Berat jenis, ρe 8.2 kg/dm^3 Total berat kawat elemen, Wt 16.33 kg Harga per kg 1,200,000 Rupiah Total Harga 19,596,218 Rupiah
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  • 7. RINCIAN INPUT OUTPUT UNIT Batang Keramik Diameter lilitan, D 40 mm Jumlah batang lilitan, Nb 5 buah Jumlah group, Ng 3 buah Jumlah dinding pemanas, Nd 2 buah Panjang batang 13.3 cm Keliling lilitan, k 125.6 mm Panjang batang lilitan, Lb 1000 mm Jarak antar lilitan, pl 5 mm Jumlah lilitan, Nl 26.7 buah Panjang kawat elemen, Le 3.35 m Check Panjang Total Kawat: 100.48 m : 158.56 m ok ! Alumina Volume alumina 125.6 cm^3 Berat jenis alumina 3.8 kg/dm^3 Total berat alumina 14.3 kg Harga per kg 15,000 Rupiah Total Harga 214,776 Rupiah Binder Jenis Waterglass Binder-4% berat alumina 5.7 kg Harga per kg 7,500 Rupiah Total Harga 42,955 Rupiah
  • 8. No. RINCIAN SPESIFIKASI JUMLAH KEBUTUHAN 1 Pelat Baja Tahan Karat 2 mm 15.86 kg 2 Baja Pelat 2 mm 79.30 kg 3 Besi Siku 5 cm 78 kg 4 Glass Wool 5 cm 15 kg 5 BTA SK. 34 227 buah 6 Semen Tahan Api SK. 36 26.4 kg 7 Elemen Pemanas Kanthal 16.33 kg 8 Batang Keramik Alumina 14.3 kg 9 Binder Waterglass 5.7 kg 10 Temperatur Kontrol 11 Komponen Lain 12 Biaya Manufaktur (30%) 0.3 13 Fee Engineering (30%) 0.3 14 Pajak (10%) 0.1 TOTAL BIAYA, Rp.
  • 9. HARGA/UNIT HARGA TOTAL 75,000 1,189,500 16,000 1,268,800 25,000 1,950,000 50,000 750,000 13,500 3,062,382 5,000 132,000 1,200,000 19,596,218 15,000 214,776 7,500 42,955 10,000,000 2,000,000 11,681,349 11,681,349 3,893,783 67,463,113
  • 10. RINCIAN INPUT OUTPUT Target temperatur max, Tmax (oC) 1200 Volume furnace, V (dm^3) 1000 Berat jenis udara, ρ (kg/dm^3) 0 Massa udara, mu (kg) 1.22 Panas jenis udara, (cal/kg.oF) 144.17 Jumlah panas, Q (watt) 448.3 Panjang total kawat elemen, Lt (dm) 158.6 Luas penampang kawat, A (dm^2) 0.0013 Tahanan jenis, ρ (ohm.dm) 0 Tahanan Listrik, R (ohm) 13.89 Arus listrik, I (A) 340.9 Daya listrik, W (KVA) 75.0