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All Journal INTEK: Jurnal Penelitian Jurnal Teknik Mesin Sinergi

Chandra Bhuana

Unknown Affiliation

Author-ID : 242338

Computer Science & IT Energy Engineering Mechanical Engineering

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Rancang Bangun Prototipe Pembangkit Listrik Tenaga Mikrohidro Menggunakan Turbin Pelton Chandra Bhuana; Tasrif Tasrif; Muhammad Ruswandi Djalal; Nurul Andini; Muhammad Aldy Rezaldy
Jurnal Teknik Mesin Sinergi Vol 20, No 1 (2022): April 2022
Publisher : Politeknik Negeri Ujung Pandang

Water energy can be used as a power plant by utilizing the available potential energy (waterfall potential and flow velocity). The water turbine is one of the driving machines where the working fluid is water which is used directly to rotate the turbine runner and turbine generator to produce electrical energy. This research was conducted using a Pelton type water turbine installation and measurements were made of turbine and generator rotation, flow rate, electric voltage and electric current with variations in the position of the nozzle angle. The research method used is a laboratory-scale experimental method and the results of the design of the water turbine are used as a practicum tool for students of the Department of Mechanical Engineering, Energy Generation Engineering Study Program. The results showed that there was an effect of the position of the nozzle angle on the performance of the PLTMH prototype using a Pelton turbine, in this study the nozzle position will be designed at an angle of 00,450,600, and 750.

Evaluasi Kinerja Boiler Combustion Fluidized Bed (CFB) di PT. PLN (Persero) Unit PLTU Barru Arsyil Arham; Muh Yusuf Septiawan; Chandra Bhuana; Musrady Mulyadi
Jurnal Teknik Mesin Sinergi Vol 13, No 1 (2015): April 2015
Publisher : Politeknik Negeri Ujung Pandang

Boiler adalah bejana tertutup dimana panas pembakaran dialirkan ke air sampai terbentuk air panas atau steam. Salah satu tipe dari boiler yaitu boiler combustion fluidized bed (CFB) dimana, boiler tersebut merupakan hasil repowering dan redisgn dari boiler unggun fluidisasi. Penelitian ini dilakukan untuk mengetahui seberapa besar penurunan nilai efisiensi yang terjadi pada boiler CFB juga untuk mengetahui kinerja dari boiler CFB tersebut. Penelitian dilakukan dengan menggunakan metode langsung yaitu energi yang didapat dari fluida kerja (air dan steam) dibandingkan dengan energi yang terkandung dalam bahan bakar boiler. Kemudian dengan menggunakan metode tidak langsung yaitu efisiensi merupakan perbedaan antara kehilangan dan energi yang masuk. Hasil penelitian didapatkan nilai efisiensi boiler PLTU Barru unit 1 mengalami penurunan secara signifikan dengan menggunakan metode langsung sebesar 18,75 %, dimana pada kondisi operasi 13 Januari 2014 efisiensi boiler sebesar 89,21 %, sedangkan efisiensi boiler pada kondisi operasi 3 Juni 2014 sebesar 70,46 %. Untuk efisiensi boiler PLTU Barru unit 1 mengalami penurunan sebesar 3,84 % dengan menggunakan metode tidak langsung (kehilangan panas), dimana pada kondisi awal boiler saat beroperasi 75% dari 50 MW atau beban sekitar 37,5 MW tahun 2012 efisiensi boilernya sebesar 87,94%, sedangkan efisiensi boiler pada kondisi operasi 3 Juni 2014 pada beban 36 MW sebesar 84,1%.

Analisis Kinerja Pembangkit Listrik Tenaga Mikro Hidro Desa Tombolo Pao Kabupaten Gowa Syahrial Syahrial; Prayudi Azis; Chandra Bhuana; A. M. Shiddiq Yunus
Jurnal Teknik Mesin Sinergi Vol 17, No 1 (2019): April 2019
Publisher : Politeknik Negeri Ujung Pandang

This research is a descriptive study, studying to determine the large discharge during the dry season, power output and efficiency as well as the suitability of the selection of penstock from the Micro Hydro Power Plant, Buttono Pao Village, Gowa Regency. In this research, the method used is descriptive analysis. This analysis provides an explanation or description of the conditions of the Power Plant starting from power generation and penstock performance evaluation. The results showed that the discharge in the carrier channel in the dry season from May to July 2016 was appropriate, which was between 0.116 m3 / s - 0.187 m3 / s and obtained the power generated by the output generator 4322.32 Watt to 4675.73 Watt with system Efficiency spent between 39.43% - 42.66%. From this value obtained from the value of efficiency in the Micro Hydro Power Plant (PLTMH) Tombolo Pao Village, Gowa Regency is less efficient in increasing electricity power. This is because this PLTMH has started operating since 2006 and in its construction design is still very simple. In terms of Penstock analysis the penstock material used is PVC pipe with a diameter of 8 inch or 0.216 m. After calculation, the diameter of the penstock is obtained based on the measurement used by the debit which has been obtained 0.254 m, while the flow velocity of the penstock is 3.205 m / s. To get the hfriction value, the required parameters are hwall loss and hturb loss. The values are 15,868 m and 0,732 m, the hfriction value is 16,6 m.

Analisis Konsumsi Bahan Bakar Spesifik Pada Pembangkit Listrik Tenaga Uap (PLTU) Jeneponto Jamal Jamal; Chandra Bhuana; Fajri Alihar
Jurnal Teknik Mesin Sinergi Vol 18, No 1 (2020): April 2020
Publisher : Politeknik Negeri Ujung Pandang

Penelitian ini bertujuan untuk mengetahui hubungan nilai kalor bahan bakar terhadap SFC pada unit I PLTU Jeneponto, dan untuk mengetahui karakteristik hubungan SFC dengan variasi beban generator yang berbeda pada unit I PLTU Jeneponto, serta untuk mengetahui karakteristik hubungan SFC dengan efesiensi sistem pada unit I PLTU Jeneponto. Penelitian dilakukan dengan mengolah data sekunder yang didapatkan dari PLTU Jeneponto, juga dilakukan observasi lapangan dan wawancara dengan beberapa pegawai dan operator PLTU Jeneponto. Hasil yang diperoleh adalah rata-rata nilai kalori yang tertinggi memiliki nilai SFC yang rendah dan sebaliknya. Hal ini membuktikan bahwa semakin tinggi nilai kalori yang terdapat pada batubara maka konsumsi bahan bakar spesifiknya (SFC) semakin rendah begitupun sebaliknya. Pada pembebanan 50-60% dari kapasitas terpasang 1×125 MW memberikan nilai SFC yang relatif tinggi, sedangkan pada pembebanan diatas 80% dari kapasitas terpasang 1×125 MW memberikan nilai SFC yang relatif rendah, ini artinya pembangkit dapat bekerja optimal jika dioperasikan pada pembebanan diatas 80%. Nilai SFC yang rendah memiliki efesiensi yang tinggi dan nilai SFC yang tinggi memiliki efesiensi yang rendah, kondisi ini memperlihatkan bahwa semakin tinggi nilai SFC pembangkit tersebut maka semakin rendah efesiensi sistemnya begitu pun sebaliknya.

Pengaruh Temperatur Air Terhadap Produksi Hidrogen (H2) Metode Proton Exchange Membrane (PEM) Electrolyzer Shafiqah Yacub, Nurul; Naufal Rauf, Laode; Suryanto, Suryanto; Bhuana, Chandra
Jurnal Teknik Mesin Sinergi Vol 23 No 1 (2025): April 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i1.5017

Abstract: Fossil energy is still widely used in Indonesia to this day. Its continuous use causes serious environmental impacts. New energy sources, such as hydrogen, have emerged as a solution to address the ecological damage caused by fossil fuels. The unique properties of hydrogen make it an excellent fuel. This research aimed to determine the effect of water temperature on the performance of the PEM Electrolyzer and to develop a hydrogen generator design using Membrane Electrode Assembly (MEA). The research used the Proton Exchange Membrane (PEM) Electrolyzer water electrolysis method by varying the voltage, water temperature, and DC supply from a DC power supply with PWM as the current regulator. The performance of the hydrogen generator is highly influenced by the incoming water temperature. The application of Membrane Electrode Assembly (MEA) provides excellent performance in the PEM Electrolyzer. The highest performance value, 263.76%, was achieved when the current reached 7.59 A, with the water temperature at 30°C, making 30°C the optimal temperature for the PEM Electrolyzer to operate. However, when the water temperature reached its highest point at 60°C, system instability occurred, marked by a decrease in device performance to 83.28%. Furthermore, the high temperature caused swelling in the main component of the PEM Electrolyzer, the Membrane Electrode Assembly (MEA), which led to a reduction in hydrogen production.

Commisioning Test of 3 x 3kW Solar Power Plants for Laboratory Purpose Yunus, A.M Shiddiq; Hamzah, Nur; Mulyadi, Musrady; Firman, Firman; Yunus, Muhammad Yusuf; Marhatang, Marhatang; Bhuana, Chandra; Klistafani, Yiyin
INTEK: Jurnal Penelitian Vol 10 No 1 (2023): April 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i1.4279

A laboratory is an important part in the learning and teaching process, therefore, it is necessary to improve both in terms of equipment and laboratory management standards. State Polytechnic of Ujung Pandang has carried out the design process for a solar power plant (SPP) system with a capacity of 3 x 3 kW to support the learning process related to alternative and renewable energy lectures and practicum. One part of the procedure for activating newly installed laboratory equipment is the commissioning test. From the commissioning results, the results show that 3 x 300 Wp and independent 375 Wp SPP can work well with an average DC voltage rating of 80 V and for AC loads with an average voltage of 220 V. All types of loads, both AC and DC can work properly after going through the DC Couple and AC Couple with the inverter.

Co-Authors A. M. Shiddiq Yunus A. M. Shiddiq Yunus Arham, Arsyil Arsyil Arham Fajri Alihar Firman Firman Firman HR. Fajar Jamal Jamal Jamal Jamal Klistafani, Yiyin Marhatang Marhatang Muh Yusuf Septiawan Muhammad Aldy Rezaldy Muhammad Ruswandi Djalal Muhammad Yusuf Yunus Musrady Mulyadi Naufal Rauf, Laode Nur Hamzah Nurul Andini Prayudi Azis Septiawan, Muh. Yusuf Shafiqah Yacub, Nurul Sukma Abadi Suryanto Suryanto Syahrial Syahrial Tasrif Tasrif

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