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All Journal Jurnal Media Akademik (JMA) Scientific Contributions Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Cahyo Setyo Wibowo
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Education Energy Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Other

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THE INFLUENCE OF BIODIESEL BLENDS (UP TO B-20) FOR PARTS OF DIESEL ENGINE FUEL SYSTEM BY IMMERSION TEST Riesta Anggarani; Cahyo Setyo Wibowo; Emy Yuliarita
Scientific Contributions Oil and Gas Vol 38 No 1 (2015)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.38.1.538

Abstract

The Government of Indonesia will implement the mandatory policy on the use of Diesel Fuel and Biodiesel mixture with minimum 20% volume of biodiesel (B-20) start from 2016. From technical point of view, compatibility issue becomes one of the problems to be considered by automotive industries. The concern relate with solvent characteristic of biodiesel, which cause the biodiesel and its blends react with the parts of fuel system, especially the elastomers. This work is aimed to identify the material constructed the fuel system parts, including metal and non-metal parts, which has good compatibility to biodiesel blends up to B-20. Identifi cation of the parts material was done by FTIR and DSC for non-metal parts and by XRD and XRF for metal parts. The immersion test is used to compare the effect of fi ve biodiesel-diesel fuel blends (B-0, B-5, B-10, B-15, and B-20) to the physical change of metal and non-metal parts of diesel fuel system in a 2500 hours test period. The physical change being checked is the weight of the parts. The result obtained that for immersed metal parts, the change of weight occurred in the range of 0.007% to 0.595%. The higher weight change obtained by non-metal parts in the range of 0.001% to 13.85%. The lowest change was shown by metal parts consists of an alloy of CuO, Al2O3 and SiO, whether for non-metal parts was shown by a polymer type of Fluoroviton A. Through FTIR analysis we also observed that fuels composition before and after immersed with the tested parts were not change signifi cantly means that effect of solvent characteristic of biodiesel in the fuel mixture is negligible.
CHARACTERIZATION OF THERMAL PRECIPITATOR IN SMOKE COLLECTOR BY USING PARTICLE COUNTER Imansyah Ibnu Hakim; Bambang Suryawan; I Made Kartika D; Nandy Putra; Cahyo Setyo Wibowo
Scientific Contributions Oil and Gas Vol 35 No 1 (2012)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.35.1.641

Abstract

Air pollution in major cities in many countries has reaching a very concerning level. One of thecause of air pollution is pollution caused by smoke aerosol. Smoke aerosols that has an averageparticle diameter of 0.1 μm – 1 μm can be found in cigarette smoke, diesel vehicle fume, industrialfume and many else. This condition will be worsen by the increase in the number of smokers, motorvehicles and industry. Therefore we need to pursue the control method for that kind of air pollution.In the literature study, it’s found that the cleaning method of air fi ltration for fi ne particle withdimension of 0.01 – 5 μm are by using thermal precipitator. Thermal precipitator is one method ofair fi ltration based on thermophoretic force, which is if there is a temperature difference betweentwo plates, it will cause the force that will push the particles between the two plates toward theplate that has lower temperature. In the effort to help control and reduce the air pollution, for thisstudy we made a thermal precipitator test equipment to deposit the particles in the air with the useof thermophoretic force. That force is the force applied to the particles that suspended in the fl uidfl ow. The temperature difference between two plates is set at ΔT=5, 10, 15, and 20oC. This studyutilized gas sensors to observe the characterization of thermal precipitator. From the experimentand analysis can be concluded that thermal precipitator can be applied as a smoke collector.
Analysis On Dimethyl Ether (Dme) Characteristics As A Liquid Petroleum Gas (Lpg) Fuel Substitution For Household Stove Cahyo Setyo Wibowo; Riesta Anggarani; Dimitri Rulianto; Lies Aisyah
Scientific Contributions Oil and Gas Vol 36 No 3 (2013)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.36.3.768

Abstract

Increasing growth of population will lead to increasing energy needs; therefore it is necessary to find alternative energy other than fossil fuel. Currently, energy sources in Indonesia are mainly derived from oil and natural gas such as LPG. Starting from 2008, LPG demand increased significantly for households and small industries as a result of government policy on conversion of kerosene to LPG. To meet this demand, the government imports LPG up to 2 million tons per year. In order to overcome LPG crisis, an alternative energy is required to be developed without changing either the distribution system, technical or commercial used. An option among others is dimethyl ether (DME) derived from low calori’s coal gasification. In this research analysis characteristics of DME is compared to LPG (as fuel reference) used. The test methods carried out refers to the specification of LPG issued by Directorate General of Oil and Gas. Based on the results, it shows that the characteristics of the fuel LPG mixed with DME 20% and 50% have some good results particularly on physical and chemical properties, stability and homogeneous of gas. Hence, LPG mixed DME 20% and 50% can be used as a substitute fuel for household stove.
Oxidation Stability Improvement For Jatropha Biodiesel To Meet The International Standard For Automotive Applications Rizqon Fajar; Cahyo Setyo Wibowo; Siti Yubaidah
Scientific Contributions Oil and Gas Vol 34 No 1 (2011)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.34.1.794

Abstract

Biodiesel from Jatropha oil has several advantages compared to which from Palm oil, among others better cold flow properties (lower cloud point, pour point and CFPP). However, Jatropha biodiesel has an oxidation stability that is too low (2-3 hours) so that its application in the diesel engine is not acceptable. This paper reports the effect of addition of Palm bodiesel and commercial anti-oxidant on the oxidation stability of Jatropha biodiesel. The objective of this research is to find the formulation for Jatropha biodiesel which will meet the oxidation stability determined by World Wide Fuel Charter 2009 (WWFC) of min.10 hours. The required addition of BHT into Jatropha biodiesel is more than 10000 ppm to meet the WWFC specification. The addition of BHT will decrease to less than 10000 ppm if the Jatropha biodiesel was blended with Palm biodiesel as much as 60% v/v. Addition of antioxidant should be limited to a minimum value because there are also concerns about the negative effects of antioxidants on the engine components
A Review Of Biodiesel Development In Indonesia: Current Status, Future Potential And Its Impact On The Environment Lies Aisyah; Cahyo Setyo Wibowo
Scientific Contributions Oil and Gas Vol 34 No 3 (2011)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.34.3.804

Abstract

Indonesian government issued National Energy Policy in 2006 that will reduce role of fossil fuels and increase role of renewable energy in 2025 as a target year. Bio-fuels are one of the renewable energy focuses in Indonesia. In 2009, biodiesel production capacity was 1.12 tons per year and expected to rise every year. Target of biodiesel usage increasesgradually from B-10 in 2006-2010, B-15 in 2011-2016 and B-20 in 2016-2025. The policy and its target are set by the government to diversification energy source, to boost economic growth (especially regional development and creation of employment) and to reduce greenhouse gas emissions. Currently the main feedstock of biodiesel in Indonesia is derived from palm oil. Some concerns arise related to palm oil biodiesel such as competition between food versus energy and environmental issue in particular replacing forest to oil palm plantations and biodiversity loss. Therefore, development of biodiesel feedstock from non-edible crops and can be grown in non-arable land are very important for future biodiesel development in order to eliminate competition with food and prevent deforestation and biodiversity loss.
The Effect of Methanol-Gasoline (M20) and Ethanol-Gasoline (E20) Blends on Material Compatibility Nurmajid Abdurrojaq; Rizal Zaelani; Belva Adam Haley; Nur Allif Fathurrahman; Riesta Anggarani; Cahyo Setyo Wibowo; Maymuchar Maymuchar
Scientific Contributions Oil and Gas Vol 45 No 2 (2022)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.45.2.1183

Abstract

Alcohol has the potential to be used as an alternative to fossil fuels to reduce total emissions from spark-ignition (SI) engines. The impact of a mixture of 20% methanol and ethanol in gasoline on the compatibility of Ethylene Propylene Diene Monomer (EPDM) and polyamide materials, which are used as fuel hoses in SI vehicles, is presented in this study. The immersion test methodology was employed to study the influence of both types of alcohol on gasoline blend to compatibility properties i.e., hardness and weight change. Based on the result, EPDM and polyamide materials have different characteristics of material compatibility with E20 and M20. Tests on M20 and E20 fuel samples on EPDM material show a higher effect on hardness by 5-9% than pristine gasoline. Additionally, there was no change in the weight of the polyamide material in the RON 90, E20, and M20 test samples. However, there was a change in the hardness of the polyamide material by 6-11% in RON 90, E20, and M20 fuels. Moreover, there was no change in the FTIR spectrum, indicating that there was no dissolution of the EPDM and polyamide materials into the test fuel for 6 weeks of immersion.
ANALISIS VOLUME ARUS LALU LINTAS PADA SIMPANG TIGA DI KAWASAN JALAN STASIUN-JALAN WIJAYA KUSUMA JEMBER Cahyo Setyo Wibowo; Amri Gunasti
Jurnal Media Akademik (JMA) Vol. 4 No. 1 (2026): JURNAL MEDIA AKADEMIK Edisi Januari
Publisher : PT. Media Akademik Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62281/6kcvn355

Abstract

Penelitian ini bertujuan untuk menganalisis perbedaan volume sepeda motor pada pagi dan sore hari di kawasan Jalan Stasiun menuju Jalan Wijaya Kusuma sebagai jam puncak di kawasan tersebut. Data yang diperoleh hasil dari observasi lapangan secara langsung pada jam tertentu pagi (06.30-8.00) dan sore (16.30-18.00) yang merupakan jam sibuk pengendara, dengan mendapatkan hasil 12 pasangan data pengamatan. Dengan fokus pengamatan pada pola arus kendaraan dan kepadatan arus lalu lintas (Musran and Massara n.d.-a). Data dianalisis menggunakan perangkat lunak SPSS untuk mengetahui apakah ada perbedaan yang signifikan antara kedua waktu tersebut. Sehingga mendapatkan hasil analisis rata-rata volume sepeda motor pagi sebesar 30,58 kendaraan dan pada sore hari sebesar 30,67. Uji Wilcoxon menghasilkan nilai signifikan sebesar 0,906 (p>0,05) yang mengidentifikasikan tidak terdapat perbedaan yang signifikan anatara volume lalu lintas pagi dan sore hari. Dengan temuan ini menunjukkan arus lalu lintas sepeda motor relatif stabil sepanjang hari bahwa kapasitas ruas jalan masih mampu melayani volume lalu lintas pada waktu tersebut. Hasil dari penelitian ini dapat digunakan sebegai evaluasi kinerja ruas jalan dan perencanaan manajemen lalu lintas di Kawasan tersebut.
Peningkatan Kinerja Pompa Air 3 Inchi Dengan Bermesin Penggerak 5,5 Hp Berbahan Bakar LPG Faqih Supriyadi; Cahyo Setyo Wibowo; Maymuchar Maymuchar; Nanang H; Riesta Anggarani
Lembaran publikasi minyak dan gas bumi Vol 52 No 3 (2018)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.52.3.726

Abstract

Ada banyak jenis mesin penggerak pompa air yang digunakan untuk irigasi pertanian. Diantaranya adalah mesin penggerak pompa air berbahan bakar solar dan berbahan bakar bensin. Diantara kedua jenis mesin penggerak pompa air tersebut, yang paling banyak digunakan untuk mendukung kegiatan pertanian oleh petani kecil adalah mesin pompa air 3 inchi berbahan bakar minyak jenis bensin dikarenakan harganya yang terjangkau, mudah dibawa dan mudah dipindahkan dari tempat satu ke tempat lain. Akan tetapi, pada saat ini harga bensin dirasa terlalu mahal oleh para petani kecil dan ketersediaannya yang susah untuk didapatkan di sekitar lahan pertanian, sehingga diperlukan bahan bakar alternative yang dapat digunakan pada mesin penggerak pompa air berbahan bakar bensin tanpa merubah spesifi kasi dari mesin tersebut. Salah satu bahan bakar alternative tersebut adalah Liquefi ed Petroleum Gas (LPG) karena LPG dan bensin sama-sama memiliki sifat parameter pengujian nilai angka oktana riset (RON), bahkan LPG memiliki nilai RON lebih tinggi dibandingkan dengan bensin yang ada saat ini, sehingga LPG dapat digunakan sebagai bahan bakar substitusi bagi mesin pompa air dengan sistem pengapian spark plug (busi). Untuk dapat menggunakan LPG, pada mesin pompa air perlu dilakukan modifi kasi pada saluran bahan bakar menjadi system bi-fuel dengan menambahkan peralatan konversi (conversion kit). Adapun bahan bakar LPG yang digunakan adalah LPG 3 kg yang telah digunakan secara luas untuk masyarakat sehingga tersedia diberbagai lokasi. Untuk mengetahui kinerja pompa, kemudahan dalam pengoperasian dan faktor keselamatan bagi pengguna di sektor pertanian, diperlukan penelitian di laboratorium. Penelitian terhadap kinerja pompa air 3 inchi dengan mesin penggerak berbahan bakar LPG ini dilakukan untuk mengetahui Total Head dan Debit yang dihasilkan untuk dibandingkan dengan kinerja mesin berbahan bakar bensin RON 88 dan sebagai acuannya adalah pompa air yang digerakkan oleh motor listrik. Metode uji yang digunakan adalah SNI 0141-2009/Amd 2:2015. Dari hasil penelitian diperoleh bahwa kinerja pompa air 3 inchi yang digerakkan oleh mesin 5,5 hp berbahan bakar bensin 88 dan LPG tidak terjadi perbedaan yang signifi kan.
KAJIAN TEKNIS PENGGUNAAN BAHAN BAKAR DME (DIMETHYL ETHER) MURNI SEBAGAI SUBTITUSI LPG ( ELPIJI) PADA BURNER INDUSTRI KECIL Emi Yuliarita; Cahyo Setyo Wibowo; Dimitri Rulianto
Lembaran publikasi minyak dan gas bumi Vol 49 No 2 (2015)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.49.2.1196

Abstract

Dimethylether (DME) merupakan salah satu sumber energy alternatif yang diharapkan dapatmengantikan LPG sebagai bahan bakar khususnya pada sektor industri kecil yang menggunakanburner berbahan bakar LPG. Hal ini di dukung oleh karakteristik yang dimiliki bahan bakar DMEyang hamper setara dengan LPG. Disamping itu DME dapat dibuat dari berbagai sumber alam yangberlimpah di Indonesia seperti batu bara muda, biomassa dan lain lain. Tujuan penelitian ini adalahmelakukan kajian teknis kinerja burner pada industri kecil terutama burner berbahan bakar LPGyang banyak digunakan pada sektor usaha kecil dan menengah, diharapkan barner tersebut dapatmenggunakan DME murni sebagai bahan bakar. Metodologi yang digunakan dalam penelitian iniadalah pengujian kinerja burner dengan menggunakan bahan bakar DME murni yang mengacu padaSNI 7613;2010. Hasil dari penelitian ini adalah burner untuk bahan bakar LPG pada industri kecil yangada dipasaran tidak bisa langsung menggunakan bahan bakar DME murni, perlu dilakukan modififi kasipada saluran udara burner berbahan bakar LPG apabila diganti langsung dengan bahan bakar DME.Hasil penggunaan ini menunjukan bahwa burner berbahan bakar LPG yang sudah dimodififi kasi dapatmenggunakan bahan bakar DME murni, menghasilkan emisi yang lebih bersih dan efifi siensi kinerjaburner hasil modififi kasi lebih tinggi 45%, sehingga diharapkan dapat meningkatkan kinerja burneryang ada dipasaran apabila diganti bahan bakarnya dengan DME murni
Co-Authors Amri Gunasti Bambang Suryawan Belva Adam Haley Dimaz Warahadi Dimitri Rulianto Dimitri Rulianto Rulianto Dimitri Yulianto Emi Yuliarita Emy Yuliarita Faqih Supriyadi Hery Widhiarto I Made Kartika D Imansyah Ibnu Hakim Lies Aisyah Lies Aisyah Maymuchar Maymuchar Maymuchar Nanang H Nanang Hermawan Nandy Setiadi Djaya Putra Nur Allif Fathurrahman Nurmajid Abdurrojaq Reza Sukaraharja Riesta Anggarani Rizal Zaelani Rizqon Fajar Siti Yubaidah Sugeng Riyono Sylvia Ayu Bethari Yogi Pramudito