PERANCANGAN LADDER DIAGRAM PLC BERBASIS PENURUNAN TEKANAN AKIBAT KEBOCORAN PADA SISTEM FASILITAS HIDROGEN

ELISABET PASARIBU, . (2026) PERANCANGAN LADDER DIAGRAM PLC BERBASIS PENURUNAN TEKANAN AKIBAT KEBOCORAN PADA SISTEM FASILITAS HIDROGEN. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Hidrogen merupakan sumber energi bersih yang menjanjikan, namun memiliki risiko keselamatan tinggi karena sifatnya yang mudah terbakar dan rentan bocor, sehingga penelitian ini bertujuan untuk merancang sistem proteksi kebocoran otomatis pada fasilitas hidrogen menggunakan Programmable Logic Controller (PLC) dan Automatic Shut-Off Valve (ASV) dengan fokus pada setpoint penurunan tekanan yang optimal. Metodologi penelitian menerapkan pendekatan Engineering Design berbasis simulasi komputasional. Hasil penelitian menunjukkan bahwa setiap zona memerlukan karakteristik setpoint yang berbeda sesuai volume dan tekanan operasionalnya yang dilakukan secara real-time, di mana area Storage ditetapkan setpoint 15 kPa dengan, area Compressor (350 bar) memerlukan setpoint tertinggi sebesar 105 kPa, sedangkan area Buffer Tank 70 kPa dan Refrigeration atau Dispenser ditetapkan sebesar 35 kPa. Kesimpulan penelitian membuktikan bahwa implementasi logika Ladder Diagram pada PLC yang dirancang dengan prinsip Fail-Safe mampu mengintegrasikan sensor tekanan untuk mengisolasi kebocoran secara otomatis, membatasi penyebaran gas melalui mekanisme interlock bertingkat, dan menjamin keamanan fasilitas melalui fitur penguncian (latching) alarm. ***** Hydrogen is a promising clean energy source; however, it carries significant safety risks due to its flammability and susceptibility to leakage. This research aims to design an automatic leakage protection system for hydrogen facilities using a Programmable Logic Controller (PLC) and Automatic Shut-Off Valve (ASV), with a focus on determining the optimal pressure drop setpoints. The methodology applies an Engineering Design approach based on computational simulation. The results indicate that each zone requires distinct setpoint characteristics according to its volume and operational pressure in real time: the Storage area is set at 15 kPa, the Compressor (350 bar) requires the highest setpoint of 105 kPa, while the Buffer Tank is set at 70 kPa, and the Refrigeration or Dispenser area at 35 kPa. The conclusion demonstrates that the implementation of Ladder Diagram logic in PLC, designed under the Fail Safe principle, successfully integrates pressure sensors to automatically isolate leaks, limit gas dispersion through multi-level interlock mechanisms, and ensure facility safety via alarm latching features.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Pratomo Setyadi, S.T., M.T. ; 2). Dr. Ir. Adrianus Pangaribuan, M.T., PFE., CFEI.
Subjects:	Karya Umum > Karya Tulis Perguruan TInggi Karya Umum > Jurnalisme, Media Berita, Penerbitan Bahasa dan Kesusastraan > Bahasa Indonesia
Divisions:	FT > S1 Rekayasa Keselamatan Kebakaran
Depositing User:	Elisabet Pasaribu .
Date Deposited:	22 Jan 2026 03:44
Last Modified:	22 Jan 2026 03:44
URI:	http://repository.unj.ac.id/id/eprint/63308

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