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All Journal ASEAN Journal of Systems Engineering Jurnal Penelitian Saintek Rotasi Jurnal Simetris Rekayasa Mesin Journal of Engineering and Technological Sciences Jurnal Rekayasa Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Conference SENATIK STT Adisutjipto Yogyakarta Jurnal Perikanan Universitas Gadjah Mada Prosiding Seminar Nasional Pakar Prosiding Seminar Nasional Multidisiplin Ilmu International Journal of Applied Sciences and Smart Technologies ASEAN Journal of Chemical Engineering JOURNAL OF INFORMATION SYSTEM MANAGEMENT (JOISM) Journal of Mechanical Engineering Jurnal Ilmiah Teknik Mesin Poros Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Journal of Mechanical Design and Testing (JMDT) METAL : Jurnal Sistem Mekanik dan Termal Industrial Research Workshop and National Seminar Atom Indonesia
Deendarlianto
Departemen Teknik Mesin Dan Industri, Fakultas Teknik, Universitas Gadjah Mada. Jl. Grafika No. 2, Kompleks UGM, Yogyakarta 55281, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Other

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Penentuan Sub-sub Daerah Aliran Stratified Udara-Air pada Pipa Horisontal Menggunakan Constant Electric Current Method (CECM) Hudaya, Akhmad Zidni; Indarto, Indarto; Deendarlianto, Deendarlianto
Jurnal Simetris Vol 4, No 1 (2013): Jurnal Simetris
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (567.869 KB)

Abstract

ABSTRAK Visualisasi dan liquid hold-up aliran stratified udara-air pada pipa horizontal sebagai fungsi waktu (dia. dalam pipa 26,0 mm dan total panjang seksi uji 9,5 m) telah diteliti secara eksperimental. Pada penelitian ini, studi visualisasi dilakukan dari analisa data visual yang dihasilkan kamera video kecepatan tinggi dan perilaku tebal film aliran diteliti dengan mengukur liquid hold-up menggunakan Constant Electric Current Method (CECM). Prinsip dari metode ini didasarkan atas perbedaan konduktivitas pada cairan dan gas. Pada penelitian ini digunakan sensor CECM sebanyak 3 buah dengan jarak aksial antar sensor 215 mm. Hasil penelitian ini menunjukkan bahwa karakteristik gelombang antarmuka yang dihasilkan dari pemprosesan sinyal CECM dan studi visual dapat digunakan untuk menentukan sub-sub daerah aliran stratified . Peta pola aliran stratified Udara-Air pada Pipa Horisontal yang dihasilkan dari penelitian ini dipresentasikan dan dibandingkan dengan peta-peta yang ada dari penelitian-penelitian terdahulu. Kata Kunci : Sub-sub daerah aliran, aliran stratified, CECM, gelombang antarmuka
Performance of Porous-Venturi Microbubble Generator for Aeration Process Afisna, Lathifa Putri; Juwana, Wibawa Endra; Indarto, Indarto; Deendarlianto, Deendarlianto; Nugroho, Fellando Martino
Journal of Energy, Mechanical, Material and Manufacturing Engineering Vol 2, No 2 (2017)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (698.696 KB) | DOI: 10.22219/jemmme.v2i2.5054

Abstract

Qualified and preserved water is declining due to metal, waste, and hazardous chemicals contamination. Demand on fresh water raises and leads to the efforts on processing waste water with effective and efficient technology. Microbubble generator technology developed lately to result dissolved oxygen for raising microorganisms to decompose waste in waste water. This research used porous-ventury microbubble generator with 30° inlet angle and 20° outlet angle, placed in the center of 280 cm x 60 cm x 40 cm aquarium for experiment. This research aimed to find out bubble distribution and microbubble generator (MBG) performance. Measurement on bubble distribution conducted using Phantom Control Camera. Obtained data analyzed using MATLAB R2016a, while MBG performance measured using pressure transducer. Analysis conducted on variations of gas debit (0,1 lpm; 0,4 lpm., and 1 lpm) and water debit (30- 80 lpm) effects toward performance parameters, such as hydraulic power (Lw) and bubble generating efficiency (ηB). Results show that the greatest microbubbles’ diameter is 150- 500 μm, hydraulic power (Lw) increases with the inclining water debit (QL), effect of gas debit variation exert low effect towards Lw, and declining number of bubble generating efficiency (ηB) parameter with the inclining number of the water debit (QL).
Influence of Horizontal Pipe Length to Flooding of Counter Current of Water-Air Flow in Complex Pipe Hartono, Samuel; Deendarlianto, Deendarlianto
Journal of Energy, Mechanical, Material and Manufacturing Engineering Vol 2, No 2 (2017)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.691 KB) | DOI: 10.22219/jemmme.v2i2.5029

Abstract

This research has been conducted study the effect of horizontal pipe length on flooding phenomenon. Observation of the flow phenomenon has used high speed camera. Working fluids for this study were water-air and the water flow was countercurrent to the air through a hot leg simulator. Hot leg simulator consisted of an acrylic horizontal pipe with inside diameter of 25.4 mm and an elbow with inclination angle of 500. The ratio of length to diameter pipe used in this study L/D = 25, L/D = 50 and L/D = 94.5. Water superficial velocity (JL) were 0.016 m/s, 0.049 m/s, 0.082 m/s. For each water superficial velocity, air superficial velocity (JG) was increased gradually with 0.1646 m/s from 0 m/s until flooding phenomenon appeared. Time interval to change air superficial velocity was 15 seconds. The result of this study was flooding phenomenon appeared earlier for higher L/D, and it was observed that the onset of flooding shifted toward the bend. It was also observed that flooding phenomenon shifted away from the bend for higher JL while L/D kept constant.
The Visualization Study on the Slug Flow Mechanisms of the Air-Water Two-Phase in a 50 mm Horizontal Pipe Dinaryanto, Okto; Hudaya, Akhmad Zidni; Deendarlianto, Deendarlianto; Indarto, Indarto
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.273 KB) | DOI: 10.28989/senatik.v4i0.171

Abstract

The slug flow phenomena are often encountered in various industrial applications such as petroleum, process, and power plant. The presence of slug flow should be avoided as it causes structural damage due to resonance, corrosion and pipes blast. From the view point of multiphase flow, the understanding of the slug initiation mechanism is very important in pipeline design. This research is conducted using horizontal transparent acrylic pipes with diameters of 50 mm with a variation on the superficial velocity of water between 0,1 m/s and 0,77 m/s and superficial velocity of air between 0,31 m/s and 6,2 m/s. In the present experimental study, the slug initiation mechanisms was explained by visual observation by using high speed video cameras. As the results, the slug flow initiation mechanism were clarified. Furthermore, the proposed of flow initiation map was introduced.
FLUKTUASI BEDA TEKANAN DARI POLA ALIRAN SLUG AIR-UDARA PADA ALIRAN DUA FASE SEARAH PIPA HORIZONTAL Santoso, Budi; Indarto, Indarto; Deendarlianto, Deendarlianto; W., Thomas S.
ROTASI VOLUME 14, NOMOR 2, APRIL 2012
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (659.869 KB) | DOI: 10.14710/rotasi.14.2.1-6

Abstract

Karakteristik fluktuasi beda tekanan aliran slug dua fase udara-air diselidiki dalam pipa horisontal dengan panjang 10 m dan diameter dalam 24 mm. Tujuan penelitian ini adalah mengidentifikasi karakteristik dari fluktuasi beda tekanan pola aliran slug menggunakan analisis statistik, probability density function (pdf), autokorelasi dan power spectral density (psd). Sebuah sensor Differential Pressure Tansducer (DPT) dipasang untuk merekam fluktuasi beda tekanan aliran slug. Sinyal beda tekanan dikondisikan oleh pressure amplifier/signal conditioning dan diubah menjadi sinyal digital menggunakan peralatan Analog to Digital Converter (ADC). Karakteristik dari fluktuasi beda tekanan aliran slug sangat dipengaruhi oleh kecepatan superfisial fluida. Perubahan kecepatan superfisial udara dan kecepatan superfisial air dapat dibedakan dengan jelas menggunakan analisis statistik, PDF, autokorelasi dan PSD.
EVALUATION OF THE EFFECT OF OPERATING PARAMETERS ON THE PERFORMANCE OF ORIFICE/POROUS PIPE TYPE MICRO-BUBBLE GENERATOR Pambudiarto, Benny Arif; Mindaryani, Aswati; Deendarlianto, D.; Budhijanto, Wiratni
Journal of Engineering and Technological Sciences Vol 52, No 2 (2020)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2020.52.2.5

Abstract

The micro-bubble generator (MBG) is a novel aeration technology utilizing the concept of fluid flow through an orifice, where air is sucked into the internal chamber of the MBG by the pressure difference created by the orifice and immediately pushed by the high-velocity flow of the fluid. This mechanism creates micro-size bubbles with a high dissolution rate. This study focused on studying the effect on the oxygen dissolution rate of the two most important operating parameters, i.e. the volumetric flow rate of the liquid (QL) and the volumetric flow rate of the air (QG). Various combinations of values for QL and QG were systematically compared by means of the oxygen mass transfer coefficient (kLa). The experiment was carried out in a transparent container of 2.8 m x 0.6 m x 0.4 m filled with tap water that was aerated using an orifice/porous-pipe type MBG. The dissolved oxygen (DO) values were measured at distances of 60 cm, 120 cm, and 180 cm from the MBG outlet. The experiment was designed with five different values for QL and QG respectively. The results showed that the value of kLa, which is proportional to the oxygen dissolution rate, increased asymptotically with increasing QL value, while the QG values did not significantly affect the kLa value.
Pengaruh Rasio I/D terhadap Permulaan Flooding dan Fluktuasi Voltase Sinyal Tekanan Rezim Flooding pada Geometri Kompleks Astyanto, Achilleus Hermawan; Rahman, Yusuf; Medha, Akbar Yuga Adhikara; Deendarlianto, Deendarlianto; Indarto, Indarto
Jurnal Rekayasa Mesin Vol 12, No 2 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.02.21

Abstract

A nuclear power plant operation requires reliability safety systems. Therefore, an accidental scenario such as the LOCA becomes a specific attention. This relates to a countercurrent flow phenomenon which permits the occurrence of a flooding regime. This study aims to investigate the effets of I/D ratios of the riser on the onset of flooding and time-series voltage fluctuations of differential pressure signals of the flooding regime on a complex geometry representing a PWR hot leg. The test section contains a combination of a horizontal, an elbow and an inclined pipes. Three I/D ratios containing 1.9 (R1), 3.9 (R2) and 8.3 (R3) were assesed. The tabulated data are expressed in the term of a flooding curve. Meanwhile, the statistical features of the time-series voltage fluctuations of the signals are presented on both PDF and PSD graphs. The results obtained show that the assesed I/D ratios do not conduct significance effects on the onset of flooding. On the other hand, there are trends which can be obtained from the time-series signals with the increase of the I/D ratio. Those trends can also be observed in the such statistical features; the PDF and PSD graphs, respectively.
KAJIAN EKSPERIMENTAL KARAKTERISTIK PERILAKU ANTARMUKA ALIRAN BERLAWANAN ARAH DI GEOMETRI 1:30 HOT LEG PWR MENGGUNAKAN SENSOR KAWAT SEJAJAR Indarto,Deendarlianto, Alfikri Ikhsan, Achilleus Hermawan Astyanto,
Prosiding Seminar Nasional Multidisiplin Ilmu Vol 3, No 1 (2021): Strategi Mempertahankan Kualitas Penelitian dan Publikasi di Era Pandemi
Publisher : Universitas Respati Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Loss of coolant accident (LOCA) mendiskripsikan hipotesis kebocoran sirkuit primer pada pressurized water reactor (PWR) direaktor nuklir yang mengakibatkan perubahan fase cair menjadi uap jenuh. Fenomena ini dapat menyebabkan kemunculan aliran kondensat dari steam generator (SG) yang awalnya mengalir berlawanan arah dengan aliran uap berbalik arah kembali. Penelitian ini bertujuan untuk mengkaji fenomena aliran berlawanan arah di sirkuit primer PWR dengan geometri referensi hot leg PWR skala 1:30 dan rasio I/D= 1,9. Fluida kerja yang digunakan adalah campuran air destilasi dengan 60% gliserin sebagai fluida cair, dan udara sebagai fluida gas. Akusisi data fluktuasi tebal film cairan didapatkan dari sensor parallel wire. Visualisasi memperlihatkan bahwa mekanisme flooding terjadi diawali dengan munculnya wavy flow yang berkembang menjadi roll wave hingga membentuk blockage yang menandakan onset of flooding. Analisis statistik terhadap fluktuasi tebal film cairan disajikan dalam kurva PDF dan wavelets energy.
Influence of Horizontal Pipe Length to Flooding of Counter Current of Water-Air Flow in Complex Pipe Samuel Hartono; Deendarlianto Deendarlianto
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 2 No. 2 (2017)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v2i2.5029

Abstract

This research has been conducted study the effect of horizontal pipe length on flooding phenomenon. Observation of the flow phenomenon has used high speed camera. Working fluids for this study were water-air and the water flow was countercurrent to the air through a hot leg simulator. Hot leg simulator consisted of an acrylic horizontal pipe with inside diameter of 25.4 mm and an elbow with inclination angle of 500. The ratio of length to diameter pipe used in this study L/D = 25, L/D = 50 and L/D = 94.5. Water superficial velocity (JL) were 0.016 m/s, 0.049 m/s, 0.082 m/s. For each water superficial velocity, air superficial velocity (JG) was increased gradually with 0.1646 m/s from 0 m/s until flooding phenomenon appeared. Time interval to change air superficial velocity was 15 seconds. The result of this study was flooding phenomenon appeared earlier for higher L/D, and it was observed that the onset of flooding shifted toward the bend. It was also observed that flooding phenomenon shifted away from the bend for higher JL while L/D kept constant.
Performance of Porous-Venturi Microbubble Generator for Aeration Process Lathifa Putri Afisna; Wibawa Endra Juwana; Indarto Indarto; Deendarlianto Deendarlianto; Fellando Martino Nugroho
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 2 No. 2 (2017)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v2i2.5054

Abstract

Qualified and preserved water is declining due to metal, waste, and hazardous chemicals contamination. Demand on fresh water raises and leads to the efforts on processing waste water with effective and efficient technology. Microbubble generator technology developed lately to result dissolved oxygen for raising microorganisms to decompose waste in waste water. This research used porous-ventury microbubble generator with 30° inlet angle and 20° outlet angle, placed in the center of 280 cm x 60 cm x 40 cm aquarium for experiment. This research aimed to find out bubble distribution and microbubble generator (MBG) performance. Measurement on bubble distribution conducted using Phantom Control Camera. Obtained data analyzed using MATLAB R2016a, while MBG performance measured using pressure transducer. Analysis conducted on variations of gas debit (0,1 lpm; 0,4 lpm., and 1 lpm) and water debit (30- 80 lpm) effects toward performance parameters, such as hydraulic power (Lw) and bubble generating efficiency (ηB). Results show that the greatest microbubbles’ diameter is 150- 500 μm, hydraulic power (Lw) increases with the inclining water debit (QL), effect of gas debit variation exert low effect towards Lw, and declining number of bubble generating efficiency (ηB) parameter with the inclining number of the water debit (QL).
Co-Authors . Agato Abd. Rasyid Syamsuri Achilleus Hermawan Astyanto Afisna, Lathifa Putri Agato, Agato Akhmad Zidni Hudaya Akmal Irfan Majid Al Huda, Luqman Al-amin, A. S. Aldy Franstanata Ritonga Alfeus Sunarso Alim Isnansetyo Alva Edy Tontowi Andhika Satria Pratama Anggita Gigih Wahyu Iriawan, Anggita Gigih Wahyu Ari Prasetyo Arif Widyatama Arirohman, Ilham Dwi Arista, E. P. Asroni Asroni Aswati Mindaryani Bambang Triyatmo Bardi Murachman Batubara, Yongki Benny Arif Pambudiarto Bertha Maya Sopha Budiman, A. A. Budiyanto, N. R. Calista Anjani Dwiputri Dannys Arif Kusuma Dedy Kurniawan Dodi Satriawan, Dodi Drajat Indah Mawarni Dwi Budi Santoso Dwi Yuliaji Eko Budiana Eko Nugroho Fahadha, Rizqa Ula Fajarningrum, Nurmala Dyah Farid Jayadi Fauzun Fauzun Fellando Martino Nugroho Fitrah Qalbina H. A. Gunawan, H. A. Hananto, Leila Hanjani Haslinda Kusumaningsih Heppy Kristiyani, Heppy I Indarto INDAH ISTIQOMAH Indarto Indarto Indarto - Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indro Pranoto Kharisma, Sunandi Khoirun Nisa Alfitri Kumara Ari Yuana Kurniawan, Dondi Kusumaningsih, Haslinda Lathifa Putri Afisna M. Fendy Kussuma Hadi Sufyan M. Juarsa M. Rian Alif Madani Mariyadi, S. A. Maryadi , Shendy Akbar Medha, Akbar Yuga Adhikara Muhammad Fakhri Alfath Mulya Juarsa Nissaraly H.F. Nugroho, Fellando Martino Oktaviandi, R. Oktaviandi, Ryan Okto Dinaryanto Pambudiarto, Benny Arif Pamungkas, A. E. Rachmawan Budiarto Raharjo, E. P. A. Rio Budiman Romi Novriadi Roy Waluyo Rudy Kurniawan Rustadi Rustadi Samsul Kamal Samuel Hartono Samuel Hartono Septiana Ria Prihandita Setiawan, P. H. Setya Wijayanta Shima Bhaskara Ayuningrum Sinung Rahardjo Sudarja Supriyanto Supriyanto Teguh Wibowo Teguh Wibowo Teguh Wibowo Thomas S. W. Untung Surya Dharma Untung Surya Dharma, Untung Surya Wakhid Hasyim Wenang Wibawa Endra Juwana Wibawa Endra Juwana, Wibawa Endra Widodo, Gilang Destya Wiratni Budhijanto Wiratni Budhijanto Wiratni Wiratni Wiratni Wiratni, Wiratni Yuliaji, D. Yundari, Yundari Yusuf Rahman