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All Journal International Journal of Renewable Energy Development Jurnal Teknik ITS IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Turbo : Jurnal Program Studi Teknik Mesin JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN Jurnal Teknologi Terapan Jurnal Teknik Mesin Indonesia JMES The International Journal of Mechanical Engineering and Sciences Automotive Experiences Journal of Railway Transportation and Technology Sewagati International Journal of Renewable Energy Development
Bambang Sudarmanta
Departemen Teknik Mesin Institut Teknologi Sepuluh Nopember
Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Journal : IPTEK The Journal for Technology and Science

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The Experimental Study of The Effect of Air Preheating in MSW Pellet Multi-Stage Downdraft Gasifier Depi Rustam Ependi; Arif Rahman Saleh; Bambang Sudarmanta
IPTEK The Journal for Technology and Science Vol 30, No 2 (2019)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (718.059 KB) | DOI: 10.12962/j20882033.v30i2.5005

Abstract

High municipal solid waste generation in Indonesia can be used to substitute fossil energy. MSW is converted into pellet form to uniform moisture content. This study aimed to improve the performance of gasified downdraft gasifier processes by heating air inlets in pyrolysis, oxidation, and reduction zones. Variations of air temperature inlet in these zones are 80 oC, 110 oC, 150 oC, and 210oC. The results of this study obtained the highest air temperature at 210 ºC for 969 ºC. The syn-gas compositions (CO and H2) at an increase in temperature of 80-210 ºC increased from 21.4%, 9.99%, and 1.77% to 22.79%, 10.28%, and 1, 79% respectively. Cold gas efficiency increased by 5.13 % and the lowest tar level was 34.39 mg/Nm3. Based on the result of research, preheated air can improve the efficiency of gasification and reduce tar content in the syngas.
The Effects CNG Injection Timing on Engine Performance and Emissions Of A Diesel Dual Fuel Engine Moch. Aziz Kurniawan; Dori Yuvenda; Bambang Sudarmanta
IPTEK The Journal for Technology and Science Vol 30, No 2 (2019)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (599.82 KB) | DOI: 10.12962/j20882033.v30i2.4996

Abstract

Sequential combustion process on diesel dual fuel engine with compressed natural gas (CNG) fuel was complex. The problems of diesel dual fuel with CNG gas are reduced thermal efficiency and resulting in high carbon monoxide (CO) and unburned hydrocarbon (HC) emissions. The right setting between combustion air, diesel pilot fuel, and CNG gas fuel can improvement the performance and emissions. The experiment was conducted with diesel fuel conventional and dual fuel mode with CNG fuel in a single cylinder, four strokes, constant speed (1500 rpm) diesel engine type diamond DI 800. Performance parameters such as thermal efficiency and specific fuel consumption (SFC), emissions such as CO, HC, and smoke density are determined at five starts of injection timing (SOI) CNG of 700CA, 900CA, 1100CA, 1300CA, dan 1500CA ATDC with ECU programmable of Vemstune software. The results indicated that retarded CNG injection timings improved engine performance and emissions diesel dual fuel. Start of CNG injection timing optimization at 1300CA ATDC with increased thermal efficiency 14,35% and decreased specific fuel consumption (SFC) 8,83 % . in addition, it decreased CO emissions 21,35%, HC emissions 17,93%, and PM emissions lower 34,98%. However, engine performance diesel dual fuel lower than a conventional diesel engine.
Co-Authors Abdul Gafur Achmad Rizkal Achmad Syaifudi Ahmad Arbi Trihatmojo Ahmad Gurnito Ahmad Tarmizi Alham A.K. Mahanggi Amalia Dwi Utami Anas Nurgito Ari Kurniawan Arif Rahman Saleh Arif Wahjudi Ary Bachtiar Krisna Putra Asnil Asnil Atok Setiawan Atok Setiawan Atok Setiyawan Bambang Pramujati Bambang Pramujati Budi Utomo Kukuh Widodo Cholifatus Eka Rahayu Cholifatus Eka Rahayu Depi Rustam Ependi Deviana Dyah Vianita Dicky Yoko Exoryanto Djatmiko Ichsani Dori Yuvenda Dwijo Hartono Eka Setiawan Seputro Erio Daniel Damanik Erzeddin Alwi Felix Dionisius Firlana Baiturrochman Ghulam Asrofi Buntoro Hamzah Fansuri Hanapi Hasan Hendra Bhakti Herman Sasongko Herman Sasongko Imam Maolana Is Bunyamin Suryo Jamaludin Jamaludin Jamaludin Jamaludin Jose da Silva Khadif Gicha Alifio Krismadinata Krismadinata Kuntang Winangun Lukman Atmaja Marthen Paloboran Martias Martias Mirza Hamdhani Moch. Aziz Kurniawan Mohammad Khoirul Effendi Mohammad Khoirul Effendi Muji Setiyo Ni Nyoman Suwarmini Nugroho, Giri Nur Ikhwan Oki Muraza Oki Muraza Pasca Hariyadi Winanda Putra, Randi Purnama Putri Almas Ilka Afifah Rahadian Zainul Remon Lapisa Rhema Adi Magiza Wicaksana Robi Etdji Pangestu Rosid Rosid Rozy Aini Hirowati Salih Özer Sampurno Sampurno Sampurno Sigit Mujiarto Soebagyo, Hary Sri Rizki Putri Primandari Suhardjono Suhardjono Suliono Suliono Tinovia Prasetyo Triyogi Yuwono Yuli Mafendro Dedet Eka Saputra Yusuf Kaelani Yusuf Kaelani