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PFD ( Process Flow
Diagram)
Pendahuluan
 Tujuan dari PFD adalah untuk menggambarkan proses desain fundamental,
meliputi aliran proses, data proses, operasi unit, peralatan utama, dan pipa
utama
 Merupakan alat kerja utama bagi insiyur proses pada tahap akhir
konseptualisasi dari porses desain dan harus diselesaikan sebelum
sembarang rekayasa mendetail dilakukan.
 Tujuan dari memasukkan instrumentasi pada PFD adalah untuk
mendokumentasikan variable utama yg dikontrol dan manipulasi yg
mempengaruhi proses desain
G
a
m
b
a
r
P
F
D
 .
Pengembangan PFD
 PFD dikembangkan oleh insinyur proses sampai pada titik input dari
disiplin lain dibutuhkan.
 Loop kontrol utama ditunjukkan dalam bentuk sederhana
 Yg digambar oleh insinyur proses
 Insinyur sistem kontrol kemudian menganalisa masalah kontrol, dan
melakukan perubahan pada diagram
 Kemudian kedua insinyur melakukan revisi sampai pada pendekatan
desain yg memuaskan bagi keduanya
Isi PFD
 Umumnya berisi satu unit operasi
 Berisi satu buah gambar dgn peralatan dan pipa yg berhubungan
 Semua alat utama yg mempengaruhi proses digambarkan pd PFD
 Semua jalur pipa utama dari proses digambarkan
 Jalur pipa diberi nama denga wajik utuk memudahkan tabulasi aliran
material dan kondisi dari masing2 aliran.
 Peralatan diberi nama dan angka pada bagian atasnya
Simbol peralatan PFD tertentu
 Simbol peralatan PFD simple daripada engineering flow diagram karena :
 Hanya mementingkan proses
 Memuat data yg tidak spesifik
 Dapat dikelompokkan menjadi :
Mixing dan Blending
 Peralatan mekanis tidak perlu digambar secara mendetail karena yg
penting adalah fungsinya yg mempengaruhi proses
Rangkuman
 PFD adalah titik awal untuk desain detail dari berbagai disiplin ilmu
 Gambar ini menunjukkan unit operasi dasar, peralatan utama, pipa utama,
dan aliran proses utama
 Keseimbangan material dan kondisi operasi yg berhubungan digabungkan
dengan gambar tersebut memberikan gambaran komprehensif pada
proses

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01 PFD ( Process Flow Diagram) 2021.pptx

  • 1. PFD ( Process Flow Diagram)
  • 2. Pendahuluan  Tujuan dari PFD adalah untuk menggambarkan proses desain fundamental, meliputi aliran proses, data proses, operasi unit, peralatan utama, dan pipa utama  Merupakan alat kerja utama bagi insiyur proses pada tahap akhir konseptualisasi dari porses desain dan harus diselesaikan sebelum sembarang rekayasa mendetail dilakukan.  Tujuan dari memasukkan instrumentasi pada PFD adalah untuk mendokumentasikan variable utama yg dikontrol dan manipulasi yg mempengaruhi proses desain
  • 4. Pengembangan PFD  PFD dikembangkan oleh insinyur proses sampai pada titik input dari disiplin lain dibutuhkan.  Loop kontrol utama ditunjukkan dalam bentuk sederhana  Yg digambar oleh insinyur proses  Insinyur sistem kontrol kemudian menganalisa masalah kontrol, dan melakukan perubahan pada diagram  Kemudian kedua insinyur melakukan revisi sampai pada pendekatan desain yg memuaskan bagi keduanya
  • 5. Isi PFD  Umumnya berisi satu unit operasi  Berisi satu buah gambar dgn peralatan dan pipa yg berhubungan  Semua alat utama yg mempengaruhi proses digambarkan pd PFD  Semua jalur pipa utama dari proses digambarkan  Jalur pipa diberi nama denga wajik utuk memudahkan tabulasi aliran material dan kondisi dari masing2 aliran.  Peralatan diberi nama dan angka pada bagian atasnya
  • 6. Simbol peralatan PFD tertentu  Simbol peralatan PFD simple daripada engineering flow diagram karena :  Hanya mementingkan proses  Memuat data yg tidak spesifik  Dapat dikelompokkan menjadi :
  • 7. Mixing dan Blending  Peralatan mekanis tidak perlu digambar secara mendetail karena yg penting adalah fungsinya yg mempengaruhi proses
  • 8. Rangkuman  PFD adalah titik awal untuk desain detail dari berbagai disiplin ilmu  Gambar ini menunjukkan unit operasi dasar, peralatan utama, pipa utama, dan aliran proses utama  Keseimbangan material dan kondisi operasi yg berhubungan digabungkan dengan gambar tersebut memberikan gambaran komprehensif pada proses