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All Journal International Journal of Renewable Energy Development Rotasi TELKOMNIKA (Telecommunication Computing Electronics and Control) Rekayasa Mesin Proceeding SENDI_U Conference SENATIK STT Adisutjipto Yogyakarta Conference on Innovation and Application of Science and Technology (CIASTECH) INTEK: Jurnal Penelitian Jurnal Sains dan Teknologi Reaksi Pilar Teknologi : Jurnal Penelitian Ilmu-ilmu Teknik International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Proceeding ISETH (International Summit on Science, Technology, and Humanity)
Rudy Soenoko
Brawijaya University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Journal : International Journal of Renewable Energy Development

 1 
Premixed Combustion of Kapok (ceiba pentandra) seed oil on Perforated Burner Wirawan, I.K.G.; Wardana, I.N.G.; Soenoko, Rudy; Wahyudi, Slamet
International Journal of Renewable Energy Development Vol 3, No 2 (2014): July 2014
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.3.2.91-97

Abstract

Availability of fossil fuels in the world decrease gradually due to excessive fuel exploitation. This situations push researcher to look for alternative fuels as a source of renewable energy, one of them is kapok (ceiba pentandra) seed oil. The aim this study was to know the behavior of laminar burning velocity, secondary Bunsen flame with open tip, cellular and triple flame. Premixed combustion of kapok seed oil was studied experimentally on perforated burner with equivalence ratio (φ) varied from 0.30 until 1.07. The results showed that combustion of glycerol requires a large amount of air so that laminar burning velocity (SL) is the highest at very lean mixture (φ =0.36) in the form of individual Bunsen flame on each of the perforated plate hole.  Perforated and secondary Bunsen flame both reached maximum SL similar with that of ethanol and higher than that of hexadecane. Slight increase of φ decreases drastically SL of perforated and secondary Bunsen flame. When the mixture was enriched, secondary Bunsen and perforated flame disappears, and then the flame becomes Bunsen flame with open tip and triple flame (φ = 0.62 to 1.07). Flame was getting stable until the mixture above the stoichiometry. Being isolated from ambient air, the SL of perforated flame, as well as secondary Bunsen flame, becomes equal with non-isolated flame. This shows the decreasing trend of laminar burning velocity while φ is increasing. When the mixture was enriched island (φ = 0.44 to 0.48) and petal (φ = 0.53 to 0.62) cellular flame take place. Flame becomes more unstable when the mixture was changed toward stoichiometry.
Premixed combustion of coconut oil in a hele-shaw cell Saroso, Hadi; Wardana, I.N.G.; Soenoko, Rudy; Hamidi, Nurkholis
International Journal of Renewable Energy Development Vol 3, No 3 (2014): October 2014
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.3.3.155-160

Abstract

Coconut oil combustion characteristic is observed experimentally by evaporating oil in the boiler then mix it with air before being burned at various equivalence ratios in the Hele-shaw cell. The result shows that, coconut oil tends to break into glycerol and fatty acid due to hydrolysis reaction producing the flame propagation, where the fatty acid flame propagates first then glycerol flame. Micro-explosion occurs when moisture from fatty acid combustion is absorbed by glycerol and higher heating due to higher flame speed produces more micro-explosion.
Premixed Combustion of Coconut Oil on Perforated Burner Wirawan, I.K.G.; Wardana, I.N.G.; Soenoko, Rudy; Wahyudi, Slamet
International Journal of Renewable Energy Development Vol 2, No 3 (2013): October 2013
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2.3.133-139

Abstract

Coconut oil premixed combustion behavior has been studied experimentally on perforated burner with equivalence ratio (φ) varied from very lean until very rich. The results showed that burning of glycerol needs large number of air so that the laminar burning velocity (SL) is the highest at very lean mixture and the flame is in the form of individual Bunsen flame on each of the perforated plate hole. As φ is increased the  SL decreases and the secondary Bunsen flame with open tip occurs from φ =0.54 at the downstream of perforated flame. The perforated flame disappears at φ = 0.66 while the secondary Bunsen flame still exist with SL increases following that of hexadecane flame trend and then extinct when the equivalence ratio reaches one or more. Surrounding ambient air intervention makes SL decreases, shifts lower flammability limit into richer mixture, and performs triple and cellular flames. The glycerol diffusion flame radiation burned fatty acids that perform cellular islands on perforated hole.  Without glycerol, laminar flame velocity becomes higher and more stable as perforated flame at higher φ. At rich mixture the Bunsen flame becomes unstable and performs petal cellular around the cone flame front. 
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Wahid Nuruddin Achmad Noerkhaerin Putra Adrian Maidangkay Agustinus Deka Betan Ahmad Hamim Su’udy Alfeus Sunarso Amir, Ahmad Ihwan Anindito Purnowidodo Arif Setia Budi, Sofyan Arif Setia Budi, Sofyan Arthur Yanny Leiwakabessy Asroful Anam Azamataufiq Budiprasojo Bachri, Gufron Saiful Denny Widhiyanuriyawan Dewa Ngakan Ketut Putra Negara Djarot B. Darmadi, Djarot B. Djoko Sutikno Eko Siswanto Febi Rahmadianto Fery Putra PT Frederik Demmatacco Hadi Saroso Halim Zaini, Halim Hermawan, Yuni Heru Suryanto I Ketut Suarsana I.K.G. Wirawan I.N.G. Wardana Indrayadi, Bambang ING Wardana Josef Matheus Kris Witono Misbachudin, Muh Misbachudin Moch. Agus Choiron Muhammad Arsyad Murti Astuti Murty Astuti Nanse Henny Pattiasina Nanulaitta, Nevada Mario Nasir Widha Setyanto Nevada M.J. Nanulaitta Noorsakti Wahyudi Nugraha, Arif Yunizar Nurkholis Hamidi Panca Mudjirahardjo Ponco Muchamad Nur Cahyo Pratikto Pratikto Purnomo B. Santoso Purnomo Budi Santoso Putu Wijaya Sunu Raden Arief Setyawan Reinaldo Jr. F. B.B Richard A.de FRETES Richard Pietersz Ridho Dwi Syahrial Rio L Lukodono Rio Prasetyo Lukodono Romels C. A. Lumintang Setiadhi, David Setiawan, Widia Slamet Wahyudi Soeprapto, Wahyono Soeprapto, Wahyono Sonief, Achmad As´ad Sudjito Soeparman Sugiarto S Sugiono Sugiono Sunu, P.W. Surachman Surachman Surya Irawan, Yudy Surya Irawan, Yudy Sutrisno, Sutrisno Syahrizal Syahrizal Teguh Dwi Widodo Wahyono Suprapto Widhiyanuriyawa, Denny Widya Wijayanti Wiluddyana Ghoisi Nafida Yudy Surya Irawan Yuni Hermawan Yurianto Yurianto