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Ridwan Abdurrahman
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INDONESIA
Jurnal Surya Teknika
Published by Universitas Muhammadiyah Riau
ISSN : 23546751     EISSN : 27237222     DOI : 10.37859
Core Subject : Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
a media of communication and reply forum for scientific works especially concerning the fields of industrial technology, machinery, and automotive.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 361 Documents
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Pengaruh Variasi Udara Pembakaran Terhadap Efisiensi Boiler dengan Menggunakan Perhitungan Metode Langasung dan Tidak Langsung Restu Dwi Ari Zulfikar; Budi Suharto; Indriyani, Indriyani
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7294

Abstract

Boiler type DG1025/17.4 – II 13 Dong Fang Boiler Group Co., Ltd. is a type of boiler is a type of boiler in PLTU Banten 3 Lontar. Boiler efficiency in the steam generation process is influenced by various factors, the most significant of which is how the combustion process occurs in the combustion process occurs in the furnace. Perfect combustin definitely requires a combination of the rught ratio of combustion air and fuel. Based on the result of this researh, it appears that if the actual amount of air flow required for the combustion process is 6.15 kg air/kg coal, then the theoritical air requirements is known to be 8.35 kg air/kg coal. This means that if the actual amount of air flow required for the process is close to the theoritical air flow value, it will indirectly increase the boiler combustion efficiency value. It is proven that when the combustion air variation is the smallest, namely 1050 T/h, it produces a boiler efficiency of 66.82% (direct), then at the largest combustion air variation, namely 1200T/h, it produces an efficiency of 72.40% (direct).
Evaluasi Efektivitas Perpindahan Panas Generator Air Cooler pada PT. X Moch. Gilang Muharam; Alvera Apridalianti Melkias; Indriyani, Indriyani
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7305

Abstract

The generator air cooler at PT. X functions as a heat exchanger in the process of cooling air in the generator. As an air cooler for the generator, the generator air cooler must have good effectiveness. Good effectiveness is considered from the heat transfer between the cooling water in the air cooler generator as the cooling medium and the air being circulated, so the heat absorption is expected to be maximized. Based on the calculations conducted, the fin efficiency of the air cooler generator is 41.6%, the overall heat transfer coefficient (U) is 59.49 W/m²°C, the heat transfer rate on the fins is 312.2703 kW, the heat transfer rate on the tubes is 84.39696 kW, the number of transfer units (NTU) is 0.853, and the overall effectiveness of the air cooler generator system is 53.06%, showing a decrease of 33.94% from the maximum effectiveness of 87%.
Pengaruh Pencampuran Metanol dalam Bahan Bakar Pertalite Terhadap Performa Mesin Sepeda Motor Syamsul Maarif; Hedi, Hedi; Sri Widarti
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7315

Abstract

The purpose of this research is to study the effect of mixing pertalite fuel with methanol on torque, power, and fuel consumption, as well as to study the effect of mixing pertalite fuel with methanol on vehicle exhaust emissions and determine the mixture of pertalite and methanol that produces the best engine performance. Fuel variations pertalite, pertalite methanol 5% (M5), pertalite methanol 10% (M10), pertalite methanol 15% (M15), pertalite methanol 20% (M20). This test is carried out with dynotest testing which aims to determine the value of torque and power. Fuel consumption testing was carried out using the road test method, while testing exhaust emissions using Gaz Analyzer. In testing using dynotest, it can be seen that the addition of methanol makes the torque value produced greater, the highest torque value is produced by M20 fuel which is 22.37 Nm. The highest power value is produced by M20 fuel, which is 13.2 Hp. The results of fuel consumption testing with the road test method using pertalite, M5, M10, M15, M20 fuels with the same amount of fuel, namely 250 ml, show that M20 fuel produces the least fuel consumption value of 0.018 l/km with the longest mileage compared to other fuels, namely 13.2 km. The results of HC, CO and CO₂ exhaust emissions testing show that M20 fuel produces the least HC, CO and CO₂ exhaust emissions compared to other fuels.
Pengaruh Pemakaian Jenis Bahan Bakar Terhadap Kinerja Boiler dengan Metode Langsung dan Tidak Langsung Nahda Alifa Zahira Putri; Ika Yuliani; Sri Widarti
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7324

Abstract

Boilers produce steam by heating water using heat energy from burning fuel. This research analyzes the effect of fuel type on the performance of the 52-B-101C boiler at PT Kilang Pertamina Internasional RU VI Balongan. The performance parameters calculated are the evaporation ratio and efficiency using direct and indirect methods according to ASME Standard: PTC 4-1. The research results show that the use of 50% and 100% natural gas produces an evaporation ratio of 13,166 and 19,911, direct efficiency of 67.113% and 86.893%, and indirect efficiency of 87.699% and 85.758%. In conclusion, the use of 100% natural gas provides better boiler efficiency and performance. It is recommended to reduce the use of atmospheric residue and increase the use of natural gas with a hydrogen content that is not too high.
Pengaruh Main Overhaul pada Boiler Terhadap Kinerja Menggunakan Metode Direct Salsabila Gina Nursyfa; Ika Yuliyani; Ratu Fenny Muldiani
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7325

Abstract

Boiler performance is critical for optimal operation, so it requires continuous monitoring to prevent performance degradation. Decreased performance can be caused by drying, reduced fuel and feed water quality, and poor maintenance. One preventive measure is to carry out an overhaul. This research analyzes the effect of overhaul on boiler performance using data before and after overhaul, with a focus on the evaporation ratio and boiler efficiency. The research results show an increase in the evaporation ratio from 17.26 to 18.23 and efficiency from 77.12% to 79.56% after overhaul. This increase shows that the overhaul has succeeded in improving boiler performance. Increased boiler performance occurs as a result of overhaul activities, which include cleaning and replacing equipment. This maximizes heat transfer between the feed water and the gases resulting from fuel combustion.
Analisis Efektivitas Cooling Tower Sebelum dan Sesudah Pergantian Filler Pack Mutiara Ghinaul Qalbi; Budi Suharto; Sri Wuryanti
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7326

Abstract

Cooling towers are components used to lower the temperature of condensate water from the condenser, which is pumped through the hot well pump. Given the importance of cooling towers as components used to lower condensate water temperature, the performance of these cooling towers must be maintained. One way to determine the effect of the filler pack is to conduct an analysis to determine the effectiveness parameters of the cooling tower. The analysis was conducted using the range approach and heat transfer methods. The results showed that the heat transfer effectiveness before replacing the filler pack was 68%, while after the replacement, the effectiveness increased to 72%. This indicates that replacing the filler pack has succeeded in increasing the effectiveness of the cooling tower.
Analisis Efektivitas High Pressure Heater (HPH) 7 PT. Z Raharja Puja Gustika; Ignatius Riyadi Mardiyanto; Indriyani, Indriyani
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7329

Abstract

High Pressure Heater (HPH) merupakan komponen yang berperan penting dalam efisiensi siklus karena HPH adalah alat pemanas awal yang digunakan untuk meningkatkan efisiensi siklus dengan cara memanaskan air umpan sebelum memasuki boiler. Penelitian ini dilakukan untuk menganalisis efektivitas High Pressure Heater PT. Z. Penentuan ini berdasarkan data commissioning tahun 2011 dan data aktual pada bulan Maret s.d Agustus 2024. Berdasarkan hasil dari perhitungan HPH 7 didapatkan efektivitas data commissioning subcooling zone sebesar 76,04%, condensing zone sebesar 87,63% dan desuperheating zone sebesar 95,21%, sedangkan efektivitas data aktual pada subcooling zone sebesar 75,69%, condensing zone sebesar 85,62% dan desuperheating zone sebesar 94,48%. Dari hasil yang didapatkan menunjukkan bahwa HPH 7 masih berada dalam efektivitas yang baik sehingga tidak perlu dilakukan overhaul. Akan tetapi, HPH 7 perlu dilakukan pengontrolan level air karena muncul indikasi level air kondensat naik, tube leak, atau venting tidak cukup dari hasil analisis.
Evaluasi Kinerja Hot Well Pump Sebelum dan Setelah Perbaikan di PLTP PGE Kamojang Unit IV Agustianawati, Shifa; Ignatius Riyadi Mardiyanto; Maridjo, Maridjo
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7330

Abstract

The Hot Well Pump plays a pivotal role in the primary cooling system of Geothermal Power Plants (PLTP). Issues arising with the Hot Well Pump can lead to a reduction in the generated electricity, emphasizing the critical importance of corrective maintenance. Pump performance serves as a crucial parameter in indicating the proper functioning of the pump. This study aims to analyze the impact of corrective maintenance on pump performance. The results demonstrate an increase in fluid flow rate from 3429.841 m³/h to 3746.420 m³/h, a decrease in pump head from 18.335 m to 17.463 m, an increase in hydraulic power from 167.244 kW to 172.992 kW, a decrease in input power from 369.162 kW to 332.531 kW, a decrease in shaft power from 345.167 kW to 319.121 kW, and an increase in efficiency from 48.407% to 54.721%. This performance improvement substantiates the effectiveness of corrective maintenance, including the replacement of riser pipe 1, upper shaft, O-ring, and shaft sleeve, in enhancing overall pump performance.
Audit Energi Sistem Pencahayaan pada Gedung A Muhammad Noor Hadi; Alvera Apridalianti Melkias; Aceng Daud
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7332

Abstract

The lighting system is an important aspect in supporting life in carrying out daily work to create a comfortable work environment. This research aims to conduct an energy audit of the lighting system in Building A to identify the quality of the lighting system on the 2nd Floor and 3rd Floor of Building A. The method used is in accordance with standards for measuring lighting intensity and lighting power. The results of the lighting system energy audit revealed that 24 areas on the 2nd floor and 27 areas on the 3rd floor did not meet lighting intensity standards, while 2 areas on the 2nd floor and 2 areas on the 3rd floor did not meet lighting power intensity standards according to applicable standards. Based on the research conducted, there are two alternative recommendations for improving the lighting system and can provide energy saving opportunities in three areas on the 2nd floor with a total monthly savings of 84.87 kWh per month and four areas on the 3rd floor with a total savings of 39.75 kWh per month
Analisis Perfoma Multi Effect Desalination dengan Metode Overall Equipment Effectiveness Sebelum dan Sesudah Perbaikan di PLTU X Fauziyyah, Zaida Sahla; Sasono, Teguh; Suprianti, Yanti
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7368

Abstract

A multi-effect desalination machine is a device capable of producing fresh water for power plant and domestic water needs. The problem encountered is a decrease in the fresh water produced, which is related to the effectiveness of the multi-effect desalination machine. The method used to measure the machine's effectiveness is the Overall Equipment Effectiveness method. This study aims to calculate the OEE value of the multi-effect desalination machine before and after maintenance and to identify common issues by determining an action plan. The analytical method used to determine failure defense tasks is the Failure Mode and Effect Analysis method. The results showed that the OEE value after maintenance increased compared to the OEE value before maintenance, with the highest OEE value recorded at 91% on August 31 - September 1, 2023. Of the 12 types of damage that occurred, 66.67% affected the performance rate parameter and 33.33% affected the availability rate parameter. The most effective action plan in improving the OEE value after maintenance was the acid cleaning process.

Page 24 of 37 | Total Record : 361

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