Saputra, Dimas Dwi (2022) Pengaruh Variasi Rasio Bahan Bakar Biomassa Serbuk Kayu Pada Proses Co-Firing Dengan Batu Bara LRC 4200 Terhadap Performasi Pltu Berkapasitas 2x110 MW Menggunakan Simulasi Cycle-Tempo 5.0. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sejalan dengan upaya memenuhi target bauran energi dari Energi Baru terbarukan (EBT) sebesar 23% pada tahun 2025, PLN berencana memanfaatkan lebih banyak bahan bakar berbasis biomasa untuk digunakan secara bersama (Co-firing) dengan batu bara pada beberapa PLTU eksisting.Co-firing dijadikan sebagai salah satu trobosan dalam peningkatan bauran energi terbarukan yang dilakukan tanpa memerlukan biaya investasi yang signifikan sekaligus dapat menjadi solusi penanganan sampah. Co-firing merupakan penambahan biomassa pada PLTU sebagai bahan bakar pengganti parsial batu bara.Jenis dan rasio co-firing batu bara dengan biomassa yang digunakan juga akan mempengaruhi performa dan daya pemakaian pembangkit, diakibatkan energi yang dihasilkan oleh biomassa masih relatif rendah. Penelitian ini berbasis simulasi menggunakan software Cycle-Tempo 5.0. Penelitian ini akan mensimulasikan pengaruh variasi rasio bahan bakar biomassa serbuk kayu pada proses co-firing menggunakan batu bara 4200 kcal/kg terhadap performansi PLTU berkapasitas 2x110 MW. Simulasi akan dilakukan pada kondisi beban yang berbeda, yaitu 100%, 75%, 50% dan 40%. Pada setiap kondisi beban tersebut akan dilakukan pencampuran bahan bakar dengan rasio biomassa sebesar 0.5%, 1%, 5% dan 10%, serta variasi air fuel ratio sebesar AFR 6.4, AFR 6.7, AFR 7 dan AFR 7.3. Hasil simulasi menunjukan Cycle-Tempo PLTU 2x110 MW dengan variasi beban dan variasi persentase biomassa menunjukan perubahan pada kebutuhan bahan bakar total co-firing. Co-firing dengan penggunaan kebutuhan bahan bakar tertingi Peningkatan variasi persentase biomassa dan variasi air fuel ratio akan menurunkan efisiensi neto dan akan menaikkan NPHR. Co-firing dengan penggunaan efisiensi neto tertinggi pada AFR 6.4 dengan co-firing 0.5% sebesar 34.668%. Co-firing dengan penggunaan nilai NPHR terendah pada AFR 6.4 dengan co-firing 0.5% sebesar 2481.9 kcal/kWh. Peningkatan variasi persentase biomassa dan variasi air fuel ratio akan meingkatkan daya pemakaian sendiri terhadap komponen auxiliary PLTU 2x110 MW. Co-firing dengan penggunaan daya pemakaian sendiri tertinggi pada AFR 7.3 dengan co-firing 10% sebesar 6698.81 kW. Hasil perhitungan dan analisis kemampuan peralatan eksisting PA fan, SA fan dan ID Fan hasil simulasi Cycle-Tempo dibandingkan dengan kapasitas maksimum equipment refrence, didapatkan bahwa semua peralatan masih dapat beroprasi, namun terdapat beberapa peralatan masuk dalam kategori tidak aman/unsafe.
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In line with an effort to meet the energy supply target of 23% Renewable New Energy (EBT) by 2025, PLNs plan to use more biomass-based fuel to co-firing with coal at several existing power stations.Co-firing was used as a result of increasing renewable energy bauran that did not require significant investment, but also became a waste disposal solution. Co-firing is adding biomass to the PLTU as fuel for partial replacement of coal.The type and ratio of co�firing of coal with biomass used will also affect the performance and power of plant use, as the result of the energy generated by biomass is still relatively low. The study is based on simulation using the Cycle-Tempo 5.0 software. This study will simulate the impact of sawdust biomass fuel ratio variation on the co-firing process by using 4200 kcal/kg coal to the performance of the 2x110 MW steam power plant. The simulation will be conducted at different load conditions, namely 100%, 75%, 50% and 40%. Under each occasion, the burden will be combined with a biomass ratio of 0.5%, 1%, 5% and 10%, as well as air fuel ratio variation of AFR 6.4, AFR 6.7, AFR 7 and AFR 7.3. The simulation results show Cycle-Tempo PLTU 2x110 MW with variations in load and proportion of biomass indicating changes in total co-firing fuel requirements. Co-firing with the use of the highest fuel requirements. Increasing variations in the proportion of biomass and variations in air fuel ratio will reduce net efficiency and will increase NPHR. Co-firing with the highest net efficiency was at AFR 6.4 with co-firing 0.5% at 34.668%. Co-firing with the lowest NPHR value at AFR 6.4 with co-firing 0.5% at 2481.9 kcal/kWh. Increasing variations in the proportion of biomass and variations in air fuel ratio will increase the self-consumption power of the auxiliary components of PLTU 2x110 MW. Co-firing with the highest self�consumption power consumption was at AFR 7.3 with 10% co-firing of 6698.81 kW. The results of the calculation and analysis of the capabilities of existing PA fan, SA fan and ID Fan simulation results from Cycle-Tempo compared with the maximum reference capacity of the equipment, it was found that all equipment can still operate, but some equipment is in the unsafe category
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 662.88 Sap p-1 2022 |
| Uncontrolled Keywords: | Cycle-Tempo, Co-Firing, Batu bara, Serbuk Kayu |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD899.S68 Steam power plants |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 18 Feb 2025 03:17 |
| Last Modified: | 18 Feb 2025 03:17 |
| URI: | http://repository.its.ac.id/id/eprint/118781 |
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