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Journal : JIPTEK

Pengaruh Dolomite Terhadap Sifat Fisika dan Kimia Keramik Setyowati, Agustina Dyah; Sulanjari; Irawan, Ade
Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK) Vol. 5 No. 2 (2024): Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK)
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/JIPT.v5i2.39793

Abstract

The ceramic industry material has experienced rapid development. This development includes advancements in structure, composition, and physical and mechanical properties. One effort to enhance mechanical strength is by mixing ceramic materials with other materials available in the market. The quality of ceramics is a crucial factor to consider, one of which is by examining the physical and chemical properties of ceramics. Dolomite is one of the materials that significantly impacts ceramic formation; therefore, experiments need to be conducted to determine the extent of dolomite's influence on ceramic quality. Tests are carried out to ascertain the effect of dolomite amount on the characterization of ceramics. The characterization of ceramic samples with added dolomite in various amounts includes chemical and physical properties. The chemical properties of ceramic materials are determined through chemical analysis using X-Ray Fluorescence to identify the elements present in the ceramic materials. Physical properties can be determined by measuring shrinkage, compressive strength, and bending. The obtained chemical and physical properties can be used to determine the appropriate composition of dolomite as a ceramic material to achieve good ceramic quality. The correct material composition will produce ceramic products that are harder and stronger, making them less prone to breaking when heated. The chemical analysis results of dolomite using X-Ray Fluorescence show that the main elements are CaO and MgO with mass percentages of 69.41% and 29.37%, respectively. The more dolomite added to the ceramic raw material, the higher the content of CaO and MgO. The physical properties of ceramics with the addition of 2.50% dolomite in the ceramic material result in a dry shrinkage of 3.37%, firing shrinkage of 8.87%, compressive strength of 74.21 MPa, and bending of 22.76%.
Analisis Pengaruh Bukaan Katup terhadap Debit Air, Putaran Turbin, dan Daya Keluaran pada Turbin Archimedes Screw Sulanjari; Yamin, Muhamad Miftahul; Rohmat, Nur; Setyowati, Agustina Dyah; Irawan, Ade
Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK) Vol. 6 No. 2 (2025): Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK)
Publisher : Universitas Pamulang

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Abstract

Energi air merupakan salah satu sumber energi terbarukan yang memiliki potensi besar di Indonesia. Pembangkit Listrik Tenaga Mikrohidro (PLTMH) merupakan jenis pembangkit listrik berukuran kecil yang menggunakan energi air sebagai sumber daya, baik dari sungai, saluran irigasi, maupun air terjun alami. PLTMH menghasilkan listrik dengan memanfaatkan perbedaan tinggi permukaan air (head) dan debit air yang tersedia. Penelitian ini bertujuan untuk menganalisis pengaruh bukaan katup terhadap debit air, putaran turbin, dan daya keluaran turbin Archimedes screw. Bukaan katup yang digunakan adalah 25°, 40°, 55°, 70°, dan 85°, dengan volume air sebesar 20 liter. Hasil yang diperoleh menunjukkan bahwa semakin besar bukaan katup, semakin besar pula debit air yang dihasilkan, yaitu secara berturut-turut 0,00115 m³/s, 0,00311 m³/s, 0,00429 m³/s, 0,00528 m³/s, dan 0,00802 m³/s. Semakin besar bukaan katup, semakin besar pula putaran turbin yang dihasilkan, dengan nilai tertinggi sebesar 180,3 rpm. Daya keluaran juga meningkat seiring dengan bertambahnya bukaan katup, kecuali pada bukaan 85°. Nilai daya keluaran tertinggi adalah 5,35 watt pada bukaan katup 70° dengan debit air 0,00528 m³/s.
Analisa Kinerja Forced Draft Fan (FDF) sebelum dan sesudah Overhaul pada Unit 2 PLTU Banten 3 Lontar Hanafi, Imam; Sulanjari; Setyowati, Agustina Dyah; Irawan, Ade
Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK) Vol. 7 No. 1 (2025): Jurnal Inovasi Ilmu Pengetahuan dan Teknologi (JIPTEK)
Publisher : Universitas Pamulang

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Abstract

The Forced Draft Fan (FDF) is a critical component in the boiler combustion system at coal-fired power plants (PLTU), functioning to supply combustion air to the furnace. The performance of the FDF significantly affects system efficiency and unit operation stability. This study aims to analyze the efficiency of FDF performance before and after an overhaul on Unit 2 of PLTU Banten 3 Lontar. The research uses a quantitative approach by analyzing operational parameter data obtained from field measurements and manual book references. Observed parameters include air flow, input power, output power, and FDF efficiency. The results show that after the overhaul, air flow increased by 24.54 m³/s for FDF 2A and 8.49 m³/s for FDF 2B. Output power increased by 58,754.34 watts (FDF 2A) and 49,445.91 watts (FDF 2B), while input power also increased by 14,471.71 watts and 9,430 watts, respectively. FDF efficiency improved by 20.02% on FDF 2A and 17.64% on FDF 2B. These improvements indicate that the overhaul successfully enhanced FDF performance. It is recommended that overhauls be carried out regularly according to the maintenance schedule, as they positively affect FDF efficiency and overall performance. Abstrak: Forced Draft Fan (FDF) merupakan salah satu peralatan vital pada sistem pembakaran boiler di PLTU yang berfungsi untuk menyuplai udara pembakaran ke ruang bakar. Kinerja FDF sangat memengaruhi efisiensi sistem dan kestabilan operasi unit. Penelitian ini bertujuan untuk mengetahui efisiensi kinerja FDF sebelum dan sesudah dilakukan overhaul pada Unit 2 PLTU Banten 3 Lontar. Metode yang digunakan adalah pendekatan kuantitatif dengan menganalisis parameter operasional berdasarkan data lapangan dan referensi manual book. Parameter yang diamati meliputi air flow, daya input, daya output, dan efisiensi FDF. Hasil menunjukkan bahwa setelah overhaul terjadi peningkatan air flow sebesar 24,54 m³/s pada FDF 2A dan 8,49 m³/s pada FDF 2B. Daya output meningkat sebesar 58.754,34 watt (FDF 2A) dan 49.445,91 watt (FDF 2B), sementara daya input juga mengalami peningkatan masing-masing sebesar 14.471,71 watt dan 9.430 watt. Efisiensi FDF meningkat sebesar 20,02% pada FDF 2A dan 17,64% pada FDF 2B. Peningkatan efisiensi ini menunjukkan bahwa kegiatan overhaul berhasil meningkatkan performa FDF. Disarankan agar overhaul dilakukan secara berkala sesuai dengan jadwal pemeliharaan karena terbukti berdampak positif terhadap efisiensi dan kinerja FDF.
Co-Authors Abdillah Abdillah Abubakar Idham Madani Adawiyah, Rabi'atul Adinata, Surya Afrian Al-Haritz, Rafi Afriansyah Afriansyah Agusli, Rahmat Agustina Ahmad Saputra, Fahim Aini, Aini Al-Ayuni, Yusfi Alamsah, Reza Nur Andiyantama, Muhammad Qubaisy Angelia Regina Dwi Kartika Angeline Safitri, Karin Anwar, Mahfud Ariana Yunita Ariani, Nining Asliah Zainal, Asliah Astina, Dina Aswatul, Muh Athiya, Faeruzza Aulia, Diva Ayu Puspitasari, Ayu Azmi, Lalu Sulthoni Chitra Hermawan Constantine, Audrick Hubert Dani, Husnul Budiatman Darmawan, Muhammad Redho Denny Nurkertamanda Dermana, Iwayan Dunung Waskito Aji Ebelaristra, Prinsislamsheeny Brilliantdianty Edy Kurniawan, Edy Efriani, Like Erwin Setiawan, Erwin Fadillah, Aulia Nur Indri Fadillah, Riestiya Zain Fadli, Rizki Fahkrurrozi, Fahkrurrozi Faisal Anwar Farani, Firly Aulia Farse, Fitra Andika Fatin, Niky Amira Fauzobihi, Fauzobihi Fermana, Randi Gusmulyani Hadi, Ismanurrahman Hamid, Aceng Abdul Haq, Mailatul Ilal HARI PURNOMO Haryanti, Ramdhani Hendro Setyono Herman Yuliyanto Ida Suryani Wijaya Imam Hanafi Irawan, Lutfi Iskandar, Yelita Anggiane Islami, Gita Nabilla Ismayanti, Rika Izzati, Afifah Nurul Jaya, Arsan Kumala Joko Setiyono Karimah, Fitri Khairul Pahmi Rahmawati Kumalasari, Diyanah Kurniawati, Ari Laia, Lisapna Littu, Herlina Madrinovella, Ikri Mahachandra, Manik Maloka, Putri Ajeng Mansor, Khaeron Maulana, Muhammad Rafli Meliana, Risma Mika Patayang, Mika Muflihun, Sadiqin Muhammad Erwin muhammad rizky, muhammad Muhammad Zaki Multazam, Syamsul Nabila Noor Qisthani Nabila, Nabila Nadzar Darmawan, Muhamad Najib, Mohamad Khoirun Nanik Sulistyani Naresti, Aulia Nasution, Fadly Ahmad Kurniawan Normansyah, Muhammad Dzaky Nur Azizah, Rafida NUR HASANAH Nur Rohmat Nur'arofah, Zilya Rizki Nurafni, Melia Nuridah, Siti Nurluthfiana, Deby Nurselvi, Nurselvi Nurselvy, Nurselvy Ola, Rosita Ruslin Ina Palupi, Ade Cahyaning Prabaswari, Atyanti Dyah Prajanati, Miftha Sukma Adi Prihartini, Dita Priliyanabita, Gesha Pura, Margo Hadi Purnama, Muhamad Rifki PURWANTI PURWANTI Putra, Teguh Adiyas Putri, Emy Setiawati Melati Putri, Emy Setyawati Melati Qadar Hasani Rahman, Ahmad Fauzan Rahmatika, Siti Difta Ramadhan, Zhafran Ratnasari, Eka Retyaningsih, Retyaningsih Riadi, Farid Rida, Rizkha Rikki Afrizal Rivaldo, Rivaldo Riyano, Hendiko Rama Riyanto, Didik Rizki, Kiki Nur Rony, Zahara Tussoleha Rosida, Siti Ayu RR. Ella Evrita Hestiandari Rurianti, Dwi Visti Safitri, Luviana Nur Sagitarius, Elda Sahrul, Sahrul Salsabilla, Fitra Nuvus Sandi, Handi Ari Sari Novalianda Sari, Amarria Dila Sari, Desi Amaliyah Arum Sari, Yuliani Budi Permata Sarjani, Tri Mustika Septyowati, Inna setyowati, agustina dyah Shinta Kusumaningtyas, Dyah Simbolon, Kiki Tristiawanti Siti Aisah Siti Suryani Sri Mulyani Sri Nurdiati Sugeng Riyanto Sulaiman, Davi sulanjari sulanjari, Sulanjari Susanty, Meredita Sutarman Sutarman Tamirsyah, Haniyah Taqiudin, Muhamad Taruna, Riyan Thomas Afrizal, Thomas Triadi, Fara Triyanto, Joko Tuzzahra, Fatimah Ulfah, Mariam Vikaliana, Resista Weny Astuti Wicaksana, Ilyas Rasyid Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Wiratansa, Umar Wiwik Handayani Yahanan Yahanan Yahya, Shanty Yamin, Muhamad Miftahul Yanti, Pirda Yaqin Yusup, Moh Ainul Yosminaldi, Yosminaldi Yunita, Fina Yusuf Arifin Zahira, Iffah Zega, Felitusu Zubaedah, Laily Maknin Zulfikar Judge