Wardoyo, Johan Hadi (2024) Manajemen Pola Operasi Pembangkit Listrik Tenaga Uap Dengan Menggunakan Teknologi Berbasis CPFD Untuk Menganalisis Karakteristik Fluidisasi Bahan Bakar Pada Boiler Type CFB. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan energi listrik secara nasional setiap tahunnya terus mengalami pertumbuhan dan menimbang perihal tersebut pemerintah telah menerbitkan kebijakan energi nasional dengan program pembangunan pembangkit listrik sebesar 35.000 MW yang diharapkan dapat memenuhi pelayanan kelistrikan nasional sesuai target rasio eletrifikasi. Kebijakan energi nasional yang terbit telah mempertimbangkan sebagian besar 86,59% cadangan batubara nasional merupakan jenis batubara low rank yaitu subbituminous dan lignite dengan karakteristik nilai kandungan sulfur tinggi. Circulating Fluidized Bed (CFB) Boiler PLTU Labuhan Angin memiliki fleksibilitas bahan bakar dan lower emission. Aliran pada CFB Boiler PLTU Labuhan Angin sangat non-linear dengan bahan penyusun yang uniform meliputi partikel bed, batu bara dan limestone sehingga harus dilakukan klasifikasi geldart. Pada CFB boiler, umumnya mempunyai karakteristik gas-solid system yaitu recirculating loop dari partikel akan dipisahkan ke reaktor dari fluida pembawanya dengan proses yang harus berjalan dengan efisien. Pada kondisi operasi, fludisasi partikel mencapai high particle flux 10-1000 kg/m2 dan high superficial flux gas velocity 2-212 m/s, sehingga sangat dimungkinkan terjadinya kerusakan yang diakibatkan oleh keausan. Dalam rangka menjaga kontinuitas operasional, reliability dan efisiensi pembangkit listrik perlu dilakukan improvement program, salah satunya dengan melakukan permodelan simulasi Computational Particle Fluid Dynamic (CPFD) pada CFB Boiler PLTU Labuhan Angin sebagai technical judgement program manajemen operasi dan peningkatan reliability. Pada Tesis ini telah dilakukan analisa karakteristik aliran fluida dan gerakan partikel di dalam ruang bakar PLTU Labuhan Angin 2×115 MW dengan menggunakan simulasi CPFD. Simulasi dilakukan pada kondisi normal operasi temperatur ruang bakar yang mendekati kondisi operasi pada kapasitas pembangkitan desain (115 MW/unit). Hasil dari permodelan simulasi CPFD pada CFB Boiler PLTU Labuhan Angin yaitu representasi visual dinamika fluida dan ini dapat digunakan untuk mengetahui kecepatan aliran gas dan partikel dalam ruang bakar, distribusi temperatur di ruang bakar, area dominan potensi erosi sebagai baseline program manajemen operasi dan program peningkatan reliability
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The national need for electrical energy continues to grow every year, considering this, the government has issued a national energy policy with a power plant development program of 35,000 MW which is expected to be able to meet the national electricity service according to the electrification ratio target. The published national energy policy considers that the majority of 86.59% of national coal reserves are low rank coal, namely subbituminous and lignite with characteristics of high sulfur content. Circulating Fluidized Bed (CFB) Boiler PLTU Labuhan Angin has fuel flexibility and lower emission. The flow in the CFB Boiler of PLTU Labuhan Angin is very non-linear with non-uniform constituent materials including bed particles, coal and limestone, so geldart classification must be carried out. In CFB boilers, generally have a gas-solid system characteristic, namely the recirculating loop of particles will be separated into the reactor from the carrier fluid in a process that must run efficiently. Under operating conditions, the particle flux reaches a high particle flux of 10-1000 kg/m2 and a high superficial flux gas velocity of 2-212 m/s, so it is very possible to damage caused by wear. In order to maintain operational continuity, reliability and efficiency of power plants, improvement programs need to be carried out, one of which is related to carrying out Computational Particle Fluid Dynamic (CPFD) simulation models on the CFB Boiler PLTU Labuhan Angin as a technical judgment for operations management programs and increasing Reliability. In this thesis proposal, an analysis of fluid flow characteristics and particle motion in the combustion chamber of PLTU Labuhan Angin 2 × 115 MW will be carried out by using CPFD simulation. The simulation carried out normal operating conditions at the combustion chamber temperature which is close to the operating conditions at the design generating capacity (115 MW/unit). CPFD simulation modeling on the CFB Boiler PLTU Labuhan Angin is expected to be used to determine the flow velocity of gas and particles in the combustion chamber, temperature distribution in the combustion chamber, dominant areas of potential erosion as a baseline for operations management programs and reliability improvement program
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | CFB Boiler, Fluidisasi, CPFD, Klasifikasi Geldart, Erosi; CFB Boiler, Fluidization, CPFD, Geldart Classification, Erosion |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA357 Computational fluid dynamics. Fluid Mechanics |
| Divisions: | Interdisciplinary School of Management and Technology (SIMT) > 61101-Master of Technology Management (MMT) |
| Depositing User: | Johan Hadi Wardoyo |
| Date Deposited: | 06 Feb 2024 07:39 |
| Last Modified: | 06 Feb 2024 07:39 |
| URI: | http://repository.its.ac.id/id/eprint/106301 |
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