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Dedet Hermawan Setiabudi, Dedet Hermawan
Sekolah Tinggi Teknologi Adisutjipto Yogyakarta
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Karakteristik Pembakaran Briket Kokas Lokal Pada Beberapa Temperatur Karbonasi Setiabudi, Dedet Hermawan; Himawanto, Dwi Aries; Sukamta, Sukamta
Jurnal Semesta Teknika Vol 9, No 2 (2006): NOVEMBER 2006
Publisher : Jurnal Semesta Teknika

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Abstract

In order to investigate the better carbonization process that used in foundry application, this research was performed the materials of this research are the local coke that usually used in Ceper Klaten. This local coke was pressed into cylindrical shape and then carbonize in the three variation  carbonized temperature i.e. 100 0C, 200 0C  and 300 0C as long as one hour then taken into furnace to find the combustion characteristics.The result shows that carbonization process has the optimal temperature.
PEMANFAATAN KOLEKTOR SURYA SEBAGAI ENERGI ALTERNATIF DESALINASI AIR LAUT UNTUK MENGATASI KRISIS AIR BERSIH Setiabudi, Dedet Hermawan; Khudhori, Muhrom
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

This research examined the effect of air velocity and the efficiency of double-pass flat plate solar air heater with two glass covers on the performance of solar desalination unit based on heat pump with using humidification and dehumidification processes. This unit consists of a heat pump, humidifier, dehumidifier, and double-pass flat plate solar air heater with two glass covers. The research was conducted in an indoor experiment. Solar energy generated from solar simulator using halogen lamps. In this research the air flow rate was varied at 3 metres per second, 4 metres per second, 5 metres per second, and 6 metres per second, while the intensity of solar radiation at 828 Watts per meter squared. At each variation in air velocity, sea water temperature was conditioned at a constant temperature of 45 degrees celcius, the compressor was operated at a constant rotation of 900 rpm, volumetric flow rate of sea water inlet 300 liters per hour into humidifier and sea water in this system was re-circulated. The research result showed that the volume of fresh water production increases with increasing air velocity inlet into humidifier. This solar desalination unit could produce fresh water maximum 2470 milliliters per hour in air velocity 6 metres per second.
Pemberdayaan Masyarakat dalam Upaya Penyediaan Air Bersih di Dusun Kuwaru, Kepanewon Srandakan, Bantul Setyaningrum, Agustina; Masduqi, Edi; Prihandoko, Diananto; Warniningsih, Warniningsih; Setiabudi, Dedet Hermawan; Subarjo, Abdul Haris
Jurnal Pengabdian Dharma Laksana Vol. 6 No. 1 (2023): JPDL (Jurnal Pengabdian Dharma Laksana)
Publisher : LPPM Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/j.pdl.v6i1.30148

Abstract

Dusun Kuwaru merupakan salah satu wilayah di Yogyakarta yang memiliki permasalahan dalam penyediaan air bersih.. Tujuan dari kegiatan pemberdayaan masyarakat ini adalah 1) untuk mengetahui kualitas air tanah di Dukuh Kuwaru dan 2) menyediakan air bersih bagi masyarakat. Data yang dikumpulkan dalam kegiatan ini meliputi data primer dan data sekunder. Sedangkan teknik untuk pengambilan data menggunakan teknik observasi serta wawancara mendalam dengan tokoh kunci. Kualitas air tanah di Dusun Kuwaru terbukti memiliki kandungan besi yang sangat tinggi sehingga tidak layak dikonsumsi. Dengan adanya teknologi penjernihan air dengan system saringan, kandungan besi menjadi turun dan masyarakat dapat mengkonsumsi air tersebut sebagai air minum. Penyediaan air bersih di Dusun Kuwaru dilaksanakan melalui pola kemitraan antara perguruan tinggi, Badan Usaha Milik Negara (BUMN) dan masyarakat.
Pengenalan Energi Surya sebagai Energi Alternatif pada Kelompok Pemuda RT 10/RW 40 Pringwulung Sudibya, Bambang; Kurniawan, Freddy; Lasmadi, Lasmadi; Setiabudi, Dedet Hermawan; Subarjo, Abdul Haris
Kapuas Vol. 3 No. 1 (2023): Kapuas : Jurnal Publikasi Pengabdian Pada Masyarakat
Publisher : Politeknik Negeri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/jk.v3i1.520

Abstract

Karang Taruna, is a social organization for the development of young people who grow and develop on the basis of social awareness and responsibility. Karang Taruna carries out its strategy optimally in order to be able to foster the younger generation, one of which is by holding meetings by inviting resource persons. This community activity in partnership with Karang Taruna aims to provide knowledge to members. Material in the form of solar energy as an alternative energy source. At the beginning of the activity, community service activity modules were distributed in the form of material on alternative energy and solar energy and a pretest to obtain initial data on participants' knowledge of alternative energy and solar energy. The community service activities for this youth group were divided into four sessions, the first session was pretest, the second session was presentation of material from resource persons, the third session was about questions and answers, the fourth session was posttest. The result of the activity was an increase in the knowledge of participants in community service activities from 26 participants, initially the participants' understanding was 73% good, 20% sufficient, 7% less increased to 93% good and 7% sufficient. This shows that community service activities are in line with expectations. In general, community service activities run smoothly. Participants took part in all sessions of community service activities. The activity participants were quite enthusiastic in participating in community service activities. In the question and answer session the participants were also quite active and enthusiastic.
KAJIAN POTENSI ECO-AIRPORT UNTUK BANDARA SULTAN ISKANDAR MUDA Mulyani, Sri; Setiabudi, Dedet Hermawan; Prihandoko, Diananto
Jurnal Rekayasa Lingkungan Vol. 23 No. 2 (2023)
Publisher : Institut Teknologi Yogyakarta

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Abstract

Implementasi panel surya bertujuan untuk mengatasi kegagalan suplai listrik PLN, menghemat biaya listrik dan menurunkan emisi gas karbon terhadap lingkungan dalam langkah mendukung konsep bandara dengan green energy atau Eco-Airport, dalam metode perhitungannya menggunakan analisa komponen, pengaruh suhu dan juga dari segi ekonomi pada investasi awal proyek. Analisis didapatkan daya yang dapat disupplai oleh PLTS Hybrid dengan penyimpanan 88 buah baterai untuk didistribusikan ke Critical Load adalah 337,879 Wh, dan dibutuhkan modul surya sebanyak 192 unit dan inverter berjumlah 11 buah. Dalam rencana proyek PLTS ini membutuhkan lahan instalasi sebesar 357,525 ????2. Untuk kondisi pengaruh cuaca diasumsikan 6 bulan cerah dan 6 bulan hujan sehingga rata-rata listrik yang dihasilkan perhari adalah 188,155 Kwh. Dalam aksi mitigasi emisi gas karbon PLTS yang direncanakan dapat mereduksi 188,15 kgCO2 perhari.
Peningkatan Pengetahuan Manfaat Haki bagi UMKM di Kelurahan Banguntapan, Kecamatan Banguntapan, Kabupaten Bantul Santoso, Djarot Wahju; Subarjo, Abdul Haris; Nugroho, Fajar; Setiabudi, Dedet Hermawan; Sudarmanto, Sudarmanto; Kumolosari, Eli; Triwibowo, Nur Ahmad
Jurnal Peradaban Masyarakat Vol. 3 No. 6 (2023): Jurnal peradaban masyarakat (JPM)
Publisher : LPPM STIE Hidayatullah Depok

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55182/jpm.v3i6.338

Abstract

Bagi sebagian orang belum mengerti apakah yang disebut dengan Hak Atas Kekayaan Intelektual (HAKI), Hak Kekayaan Intelektual (HaKI) telah berkembang jenisnya. Pada 20 Desember 2000 HaKI juga meliputi bidang-bidang: Desain Industri. Desain Tata Letak Sirkuit Terpadu. dan Rahasia Dagang. Desain Industri memberikan perlindugan bagi karya intelektual yang berhubungan dengan bentuk. konfigurasi garis warna. atau garis dan warna yang memberikan kesan estetis. Desain Industri harus dapat diwujudkan dalam pola tiga atau dua dimensi serta bisa dipakai untuk menghasilkan suatu barang. komoditas industri atau kerajinan tangan. Desain Tata Letak Sirkuit Terpadu mengatur perlindungan yang berhubungan dengan semi konduktor. Rahasia Dagang merupakan perlindungan terhadap informasi yang tidak diketahui oleh umum di bidang teknologi dan/atau bisnis; informasi tersebut harus bernilai ekonomi, yang dapat digunakan dalam kegiatan usaha, serta kerahasiaannya dijaga oleh pemilik Rahasia Dagang. HaKI adalah sarana bagi para pengusaha untuk meningkatkan daya saing mereka. Fakta menunjukkan beberapa perusahaan yang menonjol di bidangnya berkat penggunaaan karya intelektual.
MANAJEMEN PRODUKSI PESAWAT TERBANG TANPA AWAKUNTUK MENUNJANG KEMANDIRIAN INDUSTRIPERTAHANAN Subarjo, Abdul Haris; Setiabudi, Dedet Hermawan; Santoso, Djarot Wahju; Nugroho, Fajar; Retnowati, Nurcahyani Dewi
Hikamatzu | Journal of Multidisciplinary Vol. 1 No. 2 (2024): multi science and knowlegde
Publisher : Hikamatzu | Journal of Multidisciplinary

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Abstract

Bangsa Indonesia memiliki keinginan untuk membangun suatu industri pertahanan yang kuat dan mandiri tidak bergantung pada Bangsa lain. Dengan Manajemen Industri pertahanan yang kuat dan mandiri maka kedaulatan dan kewibawaan suatu negara berpengaruh dalam mempertahankan negaranya. Undang-Undang RI no.16 Tahun 2012 menyatakan industri pertahanan meliputi empat bidang yaitu industri alat utama, industri komponen utama dan penunjang, industri komponen dan pendukung serta industri bahan baku. Salah satu produk industri alat utama pengembangan dan produksi Pesawat Terbang Tanpa Awak oleh Badan Usaha Milik Negara (BUMN) dan Badan Usaha Milik Swasta (BUMS). Untuk itu maka diperlukan manajemen produksi UAV pada industri dalam negeri tersebut dalam mendukung kemandirian industri pertahanan menjadi objek penelitian. Penelitian menggunakan metode kualitatif dengan pendekatan studi pustaka. Metode penelitian kualitatif dapat menyediakan data yang kaya dan holistik, menyediakan pemahaman atas proses yang berkelanjutan, berfokus pada studi pustaka dalam konteks tertentu, menginterpretasikan dan menjelaskan lebih dalam mengenai data kualitatif. Data-data yang diperoleh dikondensasi dan dianalisis menggunakan teknik analisis deskripsi kualitatif.
Analisis CFD Aliran Dua-Fasa Uap Air pada Pipa Geothermal Horisontal Kumolosari, Eli; Dinaryanto, Okto; Wibowo, Teguh; Setiabudi, Dedet Hermawan; Nugroho, Fajar; Pinandhita, Lazuardy Rahendra; Kurniawan, Freddy
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 17, No 1 (2025): Mei
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v17i1.2647

Abstract

Two-phase flow is a phenomenon that often found in various devices and fields, one of which is in the geothermal system. Two-phase flow parameters that are important to study include flow patterns, pressure drop, and water holdup. This study used the CFD method to obtain data on flow patterns, pressure drop, and water holdup in steam-water flow in horizontal pipes. Validation studies were conducted to obtain appropriate settings. The superficial velocities of steam and water were varied from 6-30 m/s and 0.05-0.1 m/s respectively. The results showed that the CFD results were in accordance with the experiments. Visually, the observed flow patterns were stratified-wavy flow and mist flow. Furthermore, the pressure drop and water holdup values obtained increased along with the increase in the JW value.
PERANCANGAN WATER HEATER KAPASITAS 0,1 LITER PER DETIK DENGAN MEMANFAATKAN PANAS MATAHARI UNTUK MENDUKUNG KETAHANAN ENERGI Hamdani, Taufik; Sudarmanto, Sudarmanto; Setiabudi, Dedet Hermawan; Mardwianta, Benedictus; ahmadi, Nurfi; subarjo, Abdul haris; irawati, Mardiana
Vortex Vol 4, No 2 (2023)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v4i2.1667

Abstract

Population growth and technology development are increasing rapidly. These cause the use of energy on the earth is increasing. One effort to obtain energy sources is to utilize solar energy using solar water heater. This research was expected to help the society to save energy derived from fossils. A testing was conducted by designing solar water heater with collector size of 60 cm x 50 cm using black painted aluminum-coated styrofoam insulator and the storage tank made of stainless steel with volume of 40 liter using black painted aluminum-coated styrofoam. In conducting the testing, the data were taken at 09.00 a.m until 04.00 p.m for 5 days. The research was conducted at ITD Adisutjipto. The analysis and discussion showed the solar water heater design and the storage tank used to perform performance the test (efficiency). Within 5 days testing the average of water temperature out (Tout) was 59.75 oC to 76.59 oC with the average rate efficiency of 54.07 % to 54.9 % and the average storage drop rate of 2.97 K / Hr or 17.84 K for 6 hours
Analysis of the influence of groove welds of oxy-acetylene welding joints on tensile strength and microstructure on steel ST 37 Nugroho, Fajar; Muga, Yohanes Fernando Leo; Setiabudi, Dedet Hermawan; Sudarmanto, Sudarmanto
Vortex Vol 5, No 1 (2024)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v5i1.1955

Abstract

In this study, the authors conducted a study on the analysis of the effect of oxy-acetylene welding joints on tensile strength and microstructure in the HAZ and weld metal areas on st 37 steel plates. The results of this study indicate that the average value of the highest tensile strength value is at V groove weld with the average strength of the welded joint is 4.796 kgf/mm2. While the lowest tensile stress is on the I groove weld of 4.674 kgf/mm2. Meanwhile, from the microstructure test, it can be seen that in the HAZ area each groove. Microstructure in the HAZ area shows that the double V groove  weld types are fine ferrite, coarse pearlite and martensite. In type V groove  weld the structures formed are ferrite, coarse pearlite and martensite. In type I groove  weld the structures formed are ferrite, grain boundary ferrite and fine pearlite. Whereas in the weld metal area, and the results of the microstructure test of the weld area on the V seam, it shows a dense microstructure arrangement, the arrangement is identical to pearlite (dark color) so that the specimen is harder.
Co-Authors abdul haris subarjo, abdul haris agustina setyaningrum, agustina Bambang Sudibya, Bambang Benedictus Mardwianta, Benedictus Djarot Wahju Santoso Dwi Aries Himawanto Eli Kumolosari FAJAR NUGROHO Freddy Kurniawan Hamdani, Taufik Husaini, Munawar Kusumawardani, Mawar Lasmadi, Lasmadi Mardiana Irawati Masduqi, Edi Muga, Yohanes Fernando Leo Muhrom Khudhori, Muhrom Nurcahyani Dewi Retnowati Nurfi Ahmadi, Nurfi Okto Dinaryanto Pinandhita, Lazuardy Rahendra Prihandoko, Diananto Santoso, Prasidananto Nur Sri Mulyani Sudarmanto Sudarmanto, Sudarmanto Sukamta Sukamta Teguh Wibowo Triwibowo, Nur Ahmad Warniningsih, Warniningsih