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All Journal Turbo : Jurnal Program Studi Teknik Mesin G-Tech : Jurnal Teknologi Terapan
Hakim, Muhammad Fuad Abdul
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Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering Mechanical Engineering

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Review Penggunaan Feedwater Heater Pada Pembangkit Tenaga Uap Hakim, Muhammad Fuad Abdul; Rusirawan, Dani
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i1.3166

Abstract

Aktivitas pembangkit tenaga uap berdampak pada naiknya temperatur permukaan bumi. Peralihan pembangkit yang bersumber dari energi konvensional menuju energi terbarukan memerlukan waktu. Maka, diperlukan upaya optimasi pembangkit tenaga uap sebagai solusi jangka pendek, terutama pada proses penambahan kalor agar lebih efisien. Salah satu upaya optimasi yaitu penggunaan feedwater heater, dimana dapat meningkatkan temperatur fluida sebelum masuk ke boiler sehingga mengurangi jumlah kalor yang ditambahkan. Artikel ini diawali dengan penjelasan feedwater heater serta pengaruh penggunaannya pada pembangkit tenaga uap. Kemudian dilanjutkan dengan pembahasan pengaruh jumlah dan konfigurasi feedwater heater. Penggunaan low and high pressure feedwater heater juga menjadi pembahasan termasuk upaya-upaya optimasinya. Selanjutnya, dijelaskan kombinasi dengan unit lain, salah satunya dengan solar collector. Sebagai penutup, beberapa topik penelitian selanjutnya terkait feedwater heater diusulkan sebagai alternatif pengembangan dari penelitian yang sudah ada.
Comparing the Effect of Using DC Fans and Heatsinks As Cooling Systems on Photovoltaic Efficiency Hakim, Muhammad Fuad Abdul; Putra, Mohammad Alexin; Nurhilal, Otong
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i2.2947

Abstract

One of the utilizations of solar energy is to be converted into electricity using photovoltaics (PV). The most important performance parameter of PV is efficiency. The efficiency will decrease as the PV temperature increases. Therefore, a cooling system is needed to increase PV efficiency. The objective of the research is to determine and compare the effect of DC fan and heatsink as a cooling system on PV efficiency. Four PV units with a capacity of 30 WP are used. The experiment is conducted as follows, the first PV is equipped with DC fan cooling, the second PV with heatsink cooling, the third PV with a combination of DC fan and heatsink cooling, and the fourth PV is without cooling as a reference. The result shows, that the combination of DC fan and heatsink cooling system provides the highest efficiency improvement, namely 32.08%, followed by DC fan cooling, namely 16.04%. As for heatsink cooling, there is no improvement in efficiency. The combination of DC fan and heatsink cooling system can dissipate heat from the PV more effectively than DC fan cooling system, so the PV temperature is lower and produces higher output power and efficiency. The heatsink cooling system is not effective in dissipating heat because of limited natural airflow due to the low PV stand which is only 30 cm from the ground.
Redesign of the Aeration Centrifugal Fan Impeller in a Steam Power Plant to Reduce Vibration Issues Almadi, Dadang; Putra, Mohammad Alexin; Hakim, Muhammad Fuad Abdul
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6792

Abstract

The aeration centrifugal fan (ACF) functions to inject pressurized air into the aeration pond containing wastewater from power plant operations. This increases the water's oxygen content before discharge. However, as a rotating device, the ACF often faces high vibration issues, including at a steam power plant in Cilacap Regency. Vibration in this unit exceeded permissible limits. Analysis identified blade pass and surging, linked to the impeller design, as the cause. This indicates the existing impeller was not suited to actual operational conditions. This study aims to redesign the impeller to reduce vibration. The redesign involved increasing the number and width of blades, followed by CFD simulations and vibration testing. Results showed volumetric flow rate and pressure increased from 50,887.1 m³/s to 61,185 m³/s and from 226.9 kPa to 696.3 kPa. Vibration dropped from 19.96 mm/s to 2.916 mm/s (below the 7.1 mm/s limit). Thus, the redesign successfully reduced excessive vibration.
Review Penggunaan Feedwater Heater Pada Pembangkit Tenaga Uap Hakim, Muhammad Fuad Abdul; Rusirawan, Dani
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i1.3166

Abstract

Aktivitas pembangkit tenaga uap berdampak pada naiknya temperatur permukaan bumi. Peralihan pembangkit yang bersumber dari energi konvensional menuju energi terbarukan memerlukan waktu. Maka, diperlukan upaya optimasi pembangkit tenaga uap sebagai solusi jangka pendek, terutama pada proses penambahan kalor agar lebih efisien. Salah satu upaya optimasi yaitu penggunaan feedwater heater, dimana dapat meningkatkan temperatur fluida sebelum masuk ke boiler sehingga mengurangi jumlah kalor yang ditambahkan. Artikel ini diawali dengan penjelasan feedwater heater serta pengaruh penggunaannya pada pembangkit tenaga uap. Kemudian dilanjutkan dengan pembahasan pengaruh jumlah dan konfigurasi feedwater heater. Penggunaan low and high pressure feedwater heater juga menjadi pembahasan termasuk upaya-upaya optimasinya. Selanjutnya, dijelaskan kombinasi dengan unit lain, salah satunya dengan solar collector. Sebagai penutup, beberapa topik penelitian selanjutnya terkait feedwater heater diusulkan sebagai alternatif pengembangan dari penelitian yang sudah ada.
Co-Authors Almadi, Dadang Otong Nurhilal Putra, Mohammad Alexin RUSIRAWAN, DANI