Engine Combustion Efficiency and Performance of Exhaust Pipe Fuel Preheating System

Budiprasojo, Azamataufiq; Irawan, Andik

doi:10.21776/ub.jrm.2018.009.01.1

Cited by 6 publications

(8 citation statements)

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“…The spare part production subsystem includes: industrial biosystem technology [12], Exhaust Pipe Fuel Preheating System (EP2FS) [13][14], and agrofiber composite rubber reinforced ramie fiber [15]. The service subsystem includes: maintenance of EFI vehicles based on diagnostic tools [16], increased efficiency and performance of the exhaust pipe fuel preheating system [17], increased fuel efficiency with engine manifold membrane engineering 2 [18][19], solar power plant installations [20]. In this case, the determination of CIPP is a stage of the process in looking at the parts of the TEFA pilot plan before implementation: a.…”

Section: Methodsmentioning

confidence: 99%

The teaching factory (TEFA) pilot project of transportation system engineering as an opportunity in the department of engineering at Politeknik Negeri Jember

Irawan

Pratama

Rachmanita

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The pilot project of Teaching Factory (TEFA) at the Department of Engineering, Politeknik Negeri Jember as an effort to realize TEFA in the field of transportation system engineering, including mapping the potential and opportunities for the realization of Technical TEFA by considering several product groups plans, including the production of spare parts (Y1), services (Y2) and bio-fuel production (Y3). The problem is the need to identify with potential mapping whether TEFA pilots in the Engineering Department can be recommended to be realized. Potential mapping aims to provide an output of consideration in realizing TEFA in the Department of Engineering through several stages of the process, the first method is GADM (Grid Analysis Decision Making) as a model for providing recommendations in realizing TEFA by giving a score from the questionnaire to partners, the second method with the CIPP stage (Context, Input, Process, Product) as a consideration of the service process chain flow and products that will be produced from the three products. Potential mapping is carried out by means of questionnaires to partners spread across 4 sub-districts, Jember Regency with consideration of the radius of the mapping distance of 5 km from the Politeknik Negeri Jember. Respondent partners are used as the basis for considering feasibility in establishing TEFA in the Engineering Department. The questionnaire to productive partners in the automotive sector grouped into four sub-districts obtained a mapping of a total of 100 partners from Sumbersari, Patrang, Kaliwates, Ajung with a number of 35, 14, 17 and 34 partner respondents respectively who were considered as candidates for collaboration in pioneering TEFA in the Department of Engineering. The GADM results provide a questionnaire score for each sub-district average from product groups Y1, Y2 and Y3 with a score of 3.2, 2.9 and 3.4. The partner’s choice of the highest score is biofuel (Y3).

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Section: Methodsmentioning

confidence: 99%

The teaching factory (TEFA) pilot project of transportation system engineering as an opportunity in the department of engineering at Politeknik Negeri Jember

Irawan

Pratama

Rachmanita

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Ebrahim, et al [9] menyimpulkan adanya penigkatan power output, efficiency thermal saat volumetric meningkat. Budiprasojo dan Irawan [10] menyatakan dari penelitianya bahwa pemanasan bahan bakar dapat menigkatkan unjuk kerja motor bakar. Kunal, et al [11] menyatakan waktu pembakaran bahan bakar akan berkurang seiring bertambahnya temperatur dari bahan bakar tersebut.…”

Section: Pendahuluanunclassified

Pengaruh Derajat Pengapian terhadap Kinerja Motor Bakar 6 Langkah Berbahan Bakar Etanol

Razi

Siswanto

Wijayanti

2019

JRM

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The six-stroke spark ignition engine has the potential to be developed as a new alternative to future motor fuel technology. The development of motor vehicles will be directly proportional to the use of rising fossil fuels. It is, therefore, necessary to have renewable alternative fuel, in which one of them is using ethanol fuel. Characteristics of the ethanol fuel are different from fossil fuels so the ignition timing is needed to be modified. The purpose of this study was to determine the effect of the ignition degree on the performance of a 6-stroke spark-ignition engine fuel using ethanol. This research is worked out directly by experimental and testing on the intended object. The test was carried out on an ethanol-fueled 6-step spark ignition engine with variations in the ignition angle at 24 0 ,26 0 and 28 0. Each variation was tested for a rotation interval of 600 rpm from 2400 rpm to 7200 rpm. The results show that ignition degree greatly affects performance. The ignition angle of 28 0 produced better torque, effective power, effective specific fuel consumption and effective thermal efficiency than those of the ignition degrees at 24 0 and 26 0 (standard angle). This is due to the use of ethanol fuel which has a slower combustion speed. Based on this fact, it is necessary to advance the ignition angle so that the explosive power of the air-fuel mixture is increasing. Low fuel consumption and better effective thermal efficiency were observed for 28 0 ignition degrees compared to 24 0 and 26 0 ignition degrees.

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“…Shanmukam, et al [4], menyatakan bahwa bahan bakar yang dipanaskan akan meningkatkan homogenitas campuran bahan bakar-udara sehingga kualitas pembakaran meningkat. Selain itu, Budiprasojo dan Irawan [5], menyatakan dari penelitiannya bahwa pemanasan bahan bakar dapat meningkatkan unjuk kerja motor bakar.…”

Section: Pendahuluanunclassified

“…Langkah buang ( akhir langkah buang terjadi proses injeksi air) 5) Langkah kerja/ekspansi 2 6) Langkah buang Pada akhir langkah ekspansi piston (3) mencapai titik mati bawah, selanjutnya piston bergerak menuju titik mati atas sehingga gas buang hasil pembakaran akan terbuang dan sebelum akhir langkah buang katup buang akan tertutup sehingga gas buang terkompresi kembali / kompresi 2 (5). Pada akhir langkah kompresi kedua, air diinjeksikan ke ruang bakar (6) dengan gas buang didalamnya yang bertemperatur tinggi, mengakibatkan air menguap dan volumenya meningkat, sehingga terjadi langkah ekspansi yang kedua (7).…”

Section: Gambarunclassified

“…Jumlah konsumsi bahan bakar dapat dihitung dengan menggunakan persamaan berikut : (4) b merupakan volume konsumsi bahan bakar sebanyak 1 ml, t adalah lamanya waktu konsumsi bahan bakar , dan ρ adalah massa jenis bahan bakar (gr/ml). Sehingga besarnya nilai konsumsi bahan bakar spesifik efektif (SFCe) dapat dihitung dengan persamaan : (5) FC merupakan jumlah konsumsi bahan bakar dari motor bakar (kg/jam) dan Ne merupakan besar daya efektif yang dihasilkan oleh motor bakar (HP). Perhitungan besar nilai efisiensi termal berdasarkan persamaan berikut :…”

Section: Perhitungan Konsumsi Bahan Bakar Spesifik Efektif Dan Efisieunclassified

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Pengaruh Penambahan Langkah Kerja terhadap Unjuk Kerja Motor Bakar

Gunawan

Siswanto

Yuliati

2019

JRM

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The duration of fuel-air diffusion in the 4 stroke combustion engine is relatively short, which is 0.02 seconds at 3000 rpm so that at high rotation the level of homogeneity of the fuel-air mixture becomes low. The addition of steps in a 4 stroke combustion engine to a 6 stroke combustion engine is expected to increase the duration of mass diffusion and temperature in the air-fuel mixture. So that the homogeneity of the air-fuel mixture increase and more expansion power of the combustion results. Engine performance testing by reducing the engine speed of 400 rpm at the initial condition of the throttle valve opening by 30% then the results of the performance of the two motors will be compared. The test results show an increase in power and torque in a 6 stroke combustion engine compared to a 4 stroke combustion engine at the same rotation conditions of 15%. As for the value of the specific fuel consumption effective (SFCe), thermal efficiency, and exhaust gas emissions of Hydrocarbon (HC) 4 stroke fuel is still better.

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Engine Combustion Efficiency and Performance of Exhaust Pipe Fuel Preheating System

Cited by 6 publications

References 0 publications

The teaching factory (TEFA) pilot project of transportation system engineering as an opportunity in the department of engineering at Politeknik Negeri Jember

The teaching factory (TEFA) pilot project of transportation system engineering as an opportunity in the department of engineering at Politeknik Negeri Jember

Pengaruh Derajat Pengapian terhadap Kinerja Motor Bakar 6 Langkah Berbahan Bakar Etanol

Pengaruh Penambahan Langkah Kerja terhadap Unjuk Kerja Motor Bakar

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