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sulanjari
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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.
System Circuit Analysis of Solar Panel Chicken Egg Incubator Sulanjari; Wicaksana, Ilyas Rasyid; Simbolon, Kiki Tristiawanti; Setyowati, Agustina Dyah; Rohmat, Nur; Irawan, Ade
Piston: Journal of Technical Engineering Vol. 9 No. 1 (2025)
Publisher : Program Studi Teknik Mesin Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v9i1.49755

Abstract

The chicken egg incubator is an innovation in the method of hatching chicken eggs that has higher efficiency and is up-to-date compared to using incubating hens. With this incubator machine, the incubation process of chicken eggs can be controlled and can reach the ideal temperature and humidity for the hatching process of chicken eggs. This research was conducted to find out how much power is used by this chicken egg incubator machine, as well as how long it takes for 300 Wp solar panels to charge a battery with a capacity of 12 V / 80 Ah. The research was conducted to find out the percentage of success of this egg hatching and to calculate how long it takes to reach the BEP (Break Even Point). This chicken egg incubator machine is powered by a 300 Wp solar panel with a 12 V / 80 Ah battery. In the incubator circuit there is a humidifier mist maker component to maintain the incubator humidity at 50%–60%. Lighting uses 2 incandescent lamps with a total power of 50 W, as well as a ventilation fan that turns on when the temperature in the incubator is excessive in order to keep the temperature at 36 ℃–38.5 ℃. The drive motor is set to move for 3 seconds every 3 hours. This chicken egg incubator has a power consumption of 74.55 W with an egg hatching success rate of 86%. This chicken egg incubator takes about 500 days or 1 year and 5 months to reach its BEP (Break Even Point).
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.
STRATEGI FINANSIAL KEPALA SEKOLAH DALAM MENGELOLA PEMBIAYAAN SEKOLAH RINTISAN di SD MUHAMMADIYAH TUNAS SURYA Sulanjari, Wegang; Yusuf, Muh Nur Azis; Muzakki, Ghufron Ahmad; Arjanti, Evlia Ratna; Sulanjari; Ari, Lukit Adi Syam; Harsono; Indri
Jurnal Citra Pendidikan Vol. 5 No. 3 (2025): Jurnal Citra Pendidikan
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat STKIP Citra Bakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38048/jcp.v5i3.6393

Abstract

Penelitian ini bertujuan untuk mendeskripsikan sumber pembiayaan, mekanisme pengelolaan dana, serta peran para pemangku kepentingan dalam keberlangsungan operasional SD Muhammadiyah Tunas Surya Kabupaten Klaten. Penelitian menggunakan pendekatan kualitatif deskriptif dengan strategi studi kasus. Data dikumpulkan melalui observasi, wawancara dengan kepala sekolah, guru, bendahara, PCM, BPH, dan pelaku usaha, serta studi dokumentasi. Analisis data dilakukan melalui reduksi data, penyajian data, dan penarikan kesimpulan, sementara keabsahan data dijamin melalui triangulasi sumber, teknik, dan waktu. Hasil penelitian menunjukkan bahwa pembiayaan SD Muhammadiyah Tunas Surya bersumber dari dana Bantuan Operasional Satuan Pendidikan (BOSP), Sumbangan Pembinaan Pendidikan (SPP), serta dukungan swadaya dari Badan Pengurus Harian (BPH) dan pelaku usaha sekitar. BPH menjadi penopang utama dalam mencukupi kekurangan anggaran, termasuk pembangunan sarana prasarana dan operasional rutin, karena kontribusi PCM masih terbatas. Sekolah telah menerapkan Manajemen Berbasis Sekolah (MBS) dalam penyusunan RAPBS dan pengelolaan anggaran, sehingga meskipun keterbatasan dana, proses pembelajaran tetap berjalan efektif, efisien, dan transparan untuk keberlangsungan lembaga pada masa awal pertumbuhan.
Co-Authors Ade Irawan Ari, Lukit Adi Syam Arjanti, Evlia Ratna Harsono Imam Hanafi Indri Muzakki, Ghufron Ahmad Nur Rohmat setyowati, agustina dyah Simbolon, Kiki Tristiawanti Sulanjari, Wegang Wicaksana, Ilyas Rasyid Yamin, Muhamad Miftahul Yusuf, Muh Nur Azis