HAZOP (Hazard and Operability study) 5. Penentuan Risk Ranking - PowerPoint PPT Presentation

Safety Integrity Level Add your company slogan HAZOP (Hazard and Operability study) 5. Penentuan Risk Ranking Berdasarkan MIL-STD-882D Category Significance Description Description Category Significance High Component determining actions Could result in death, permanen total Catastrophic I Acquisition Executive necessary, incidents, or disability Medium Program executive malfunctions; and requesting Could result in permanent partial High officer waivers for safety disability, injuries or occopational illness Critical II requirements and program that may result in hospitalization of at deviations least three personal Medium Program Manager Use PPE and SOP Could result in injury or occupation illness Marginal III Low As directed resulting in one or more lost work days. Could result in injury or illness not Negligible IV resulting in a lost work day Description Level Probability Frequent A <10 -1 10 -1 s/d 10 -2 Probable B 10 -2 s/d 10 -3 Occasional C 10 -3 s/d 10 -6 Remote D Improbable E > 10 -6 LOGO www.themegallery.com

Safety Integrity Level Add your company slogan HAZOP (Hazard and Operability study) Node : Truck LPG Liquid Loading Deviasi : High Pressure Cause : Valve on vapor return line not opened SDV 2X02,HV 2X08, dan HV 2X09 = ∪ ∪ Q A B C = ∪ ∪ P ( Q ) P ( A B C ) = + + P(A) P(B) P(C) − ∩ − ∩ P(A B) P(A C) − ∩ + ∩ ∩ P(B C) P(A B C) = 0 . 0012 A B C Sehingga Frekuensi terjadinya deviasi sebesar 0.0012 masuk dalam kategori C LOGO www.themegallery.com

Safety Integrity Level Add your company slogan HAZOP (Hazard and Operability study) Node : Truck LPG Liquid Loading Deviasi : High Pressure Consequence : Over pressure on pipe, skid tank, and leaked on TLA (Truck Loading arm) Dimodelkan dengan simulasi Shellfred Massflow Hole Size Injury Rate (kg/s) 0.25 Inch no Skin demage 0.66 1 Inch First degree burn 10.61 Rupture Second degree burn 57.07 Diambil skenario hole size 1 inch sehingga operator Hole Size 0.1 inch yang mengalami luka bakar akan berjumlah lebih dari 3 orang sehingga masuk dalam kategori II. Sehingga frekuensi dengan kategori C dan consekuensi kategori II menunjukkan level resiko Medium Risk . LOGO www.themegallery.com

Safety Integrity Level Add your company slogan Bow Tie Diagram Bow Tie diagram merupakan suatu visualisasi Process Hazard dan Kesuluruhan kemungkinan proses dapat diketahui dengan pendekatan boolean. Konsekuensi dari HAZOP Safeguard dari HAZOP Couse dari HAZOP LOGO www.themegallery.com

Safety Integrity Level Add your company slogan Safety Integrity Level Safety Integrity Level (SIL) merupakan suatu pengelompokan peforma suatu peralatan yang menjalankan Safety Instrument function (SIF). Parameter SIL : Availability dan PFD(probability failure on demand) LOGO www.themegallery.com Hyatt Nigel, Guidelines for Process Hazard analysis, hazard Identification & Risk Analysis page 20-3

Safety Integrity Level Add your company slogan Analisa Data Resume Hazop 1 4 1 16 1 19 LOGO www.themegallery.com

Safety Integrity Level Add your company slogan Analisa Data Hasil Screening Hazop Node deviasi Cause Consequence Safeguard 1 High level Human error when over pressure on skid tank, leak PSV on skid tank operation,there are still on TLA previous product left on the truck 1 High Pressure valve at vapour return line over pressure on skid tank, PSV on skid tank and .Pressure isn't opened leaked on TLA alarm 2 No Flow SDV-1X05, SDV-2X02, HV- over pressure on pipe, leaked on PSV on skid tank 2X06, and HV-2X09 is TLA closed over pressure on skid tank PSV on skid tank 2 Low Flow SDV-1X05, SDV-2X02, HV- over pressure on skid tank, PSV on skid tank 2X06, and HV-2X09 not leaked on TLA imperfect valve opened LOGO www.themegallery.com

Safety Integrity Level Add your company slogan Analisa Data Scenario PFD No release 3.69E-02 No Flame 9.46E-03 Jet Fire 2.43E-04 * No release is condition where no LPG release on enviroment when overpressure occur * No flame is condition where LPG release on enviroment and not ignition (safe dispertion) * Jet Fire is condition where LPG release on enviroment and ignition. LOGO

Safety Integrity Level Add your company slogan Kesimpulan  Berdasarkan analisa HAZOP terdapat Risk ranking ketegori Medium High Risk 4 titik dan high risk 1 satu titik, keempat titik tersebut terdapat pada daerah filling shed.  Jika sistem mengalami over pressure, kemungkinan 3 skenario kejadian yang mungkin akan terjadi meliputi no release dengan probability 3.69E-02, no-flame dengan probability 9.46E-03, dan Jet-fire dengan probability 2.43E-04.  Skenario berpeluang terjadinya jet fire sebesar 2.43E-04. Nilai 2.43E-04 masuk dalam kriteria SIL 3.  Peforma layer protection yang terdapat di filling shed sesuai dengan yang di gunakan pada terminal LPG Zhuhai, Guandong, China yaitu SIL 3. LOGO

LOGO

Safety Integrity Level Add your company slogan Review  Terminal LPG bergerak di bidang jasa penerimaan, pencampuran, penimbunan, dan enyaluran LPG .  Kesalahan Operasi pada sebuah Terminal LPG akan berdampak pada operasional dan operator.  Untuk mengatasi kesalahan Operasi, Terminal LPG Zhuhai, Guandong,China menerapkan SIL-3.  Dari hasil analisa peforma layer protection yang terdapat di filling shed Terminal LPG masuk dalam kriteria SIL 3 dengan nilai PFD 2.43E-04 . LOGO