An Integrated Simulation Methodology of Thermal Management Systems for the CO<sub>2</sub> Reduction after Engine Cold Start

Grimaldi, Carlo N.; Poggiani, Claudio; Cimarello, Alessandro; Cesare, Matteo De; Osbat, Giovanni

doi:10.4271/2015-01-0343

Cited by 10 publications

(2 citation statements)

References 12 publications

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“…The engine friction is calculated according to the correlation which discussed by Chen and Flynn [26,27]. The correlation gives the fmep form as follows:…”

Section: Engine Friction Modelmentioning

confidence: 99%

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

Abo-Elfadl

Abdulmoez

Nassib

2019

JES. Journal of Engineering Sciences

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The research for alternative fuels increased rapidly to mitigate the pollution problems resulting from using conventional fuels in internal combustion engines. Natural gas (NG) appears the most promising alternative due to its low prices and availability around the world.In this paper, a two-zone, zero-dimensional (0-D) model for the simulation of dual fuel NGdiesel engine is developed to study the performance of the engine with a proposed technique of NG early direct injection. The model is composed of several sub-models that are based on semiempirical formulas. NG is modeled as being directly injected at the beginning of the compression stroke. The model is applied to study the performance of HELWAN M-114 diesel engine using dual fuel of NG and diesel fuels as a case study.The results indicate that using NG early direct injection technique (EDI) results in increasing the volumetric efficiency and hence the brake power of the engine compared to the intake manifold induction (IMI) of NG with air through the intake manifold. The percentage increase in brake power is 8.7% at NG mass ratio in the total fuel (the supplement ratio (SR)) of 90% at full load. To evaluate the proposed technique, results obtained by varying the engine load and the SR. Results indicate that the slow burning rate of NG results in decrease in the brake thermal efficiency by 3.5% and increases in brake specific fuel consumption with a percentage of 10.2% at 90% SR and full load. However, a great advantage of increasing the SR is the reduction in NO x and soot emissions particularly at high engine loads where they were reduced with percentages of 28.6% and 86%, respectively at 90% SR and full load condition.

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“…The engine friction is calculated according to the correlation which discussed by Chen and Flynn [26,27]. The correlation gives the fmep form as follows:…”

Section: Engine Friction Modelmentioning

confidence: 99%

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

Abo-Elfadl

Abdulmoez

Nassib

2019

JES. Journal of Engineering Sciences

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“…Mesin Pembakaran dalam adalah yang paling umum digunakan untuk motor dan mobil penumpang dan perkembangannya sangat pesat. Saat ini kapasitas mesin bensin diperkecil dan ditambah sistem turbocharging untuk meningkatkan efisiensi bahan bakar dan merawat mesin karena menggunakan bahan bakar RON yang tinggi, menggunakan turbocharged mesin gas alam untuk menentukan penambahan hidrogen yang paling sesuai dalam kondisi ramping, dan 20% volume kandungan hidrogen ditemukan memberikan manfaat yang diinginkan [2], [3]. Sistem injeksi GDI (Gasoline Direct Injection) untuk mendapatkan muatan stratifikasi atau homogen di ruang bakar dan sistem VVA (Variable Valve Actuation) yang mengoptimalkan bahan bakar baik saat putaran mesin rendah atau tinggi, serta untuk memungkinkan kerja pemompaan pengurangan pada beban EGR (Exhaust Gas Recirculation) [4].…”

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Pengaruh Penggunaan Berbagai Jenis Material Elektroda Busi Terhadap Performa Mesin Dan Bentuk Nyala Api Pada Mesin Bensin 113 cc

Banjari¹

2022

JTMP

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Penelitian ini bertujuan untuk mengetahui pengaruh performa mesin dan bentuk nyala api dengan berbagai jenis material busi pada motor injeksi 113 cc. Penelitian ini dilaksanakan dengan metode experimen. Jenis material elektroda busi yang digunakan pada penelitian ini yaitu nikel, iridium, dan tembaga. Penelitian ini membandingkan hasil performa mesin dari ketiga busi tersebut menggunakan dynotest. Putaran mesin yang diamati yaitu pada 3000 RPM - 5000 RPM. Untuk melihat bagaimana bentuk nyala api serta warna yang dipercikan oleh busi digunakan alat yaitu spark plug tester pada kondisi 3000 RPM dan 5000 RPM. Hasil penelitian menunjukkan bahwa bentuk nyala api berpengaruh terhadap performa mesin daya dan torsi.Pada 3000 RPM, ukuran luas percikan api pada busi tembaga yaitu 0,542 mm sedangkan pada busi nikel sebesar 0,762 dan busi iridium 1,137 mm. Pada 5000 RPM, ukuran luas percikan api pada busi tembaga yaitu 0,6 mm sedangkan pada busi nikel sebesar 0,973 dan busi iridium 1,239 mm. Luasan api tersebut berpengaruh pada performa mesin. Pada 3000 RPM performa busi tembaga tidak jauh dengan busi nikel dan busi iridium. Pada 5000 RPM performa mesin menggunakan busi iridium paling baik sesuai dengan percikan api yang paling luas, selanjutnya busi nikel lalu busi tembaga pada urutan terbawah

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Numerical Investigation on Oil Pan Design Parameters to Improve Engine Performance During Oil Cool Down and Warm Up Periods

Kartal

Isin

2019

Int.J Automot. Technol.

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An Integrated Simulation Methodology of Thermal Management Systems for the CO₂ Reduction after Engine Cold Start

Cited by 10 publications

References 12 publications

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

Pengaruh Penggunaan Berbagai Jenis Material Elektroda Busi Terhadap Performa Mesin Dan Bentuk Nyala Api Pada Mesin Bensin 113 cc

Numerical Investigation on Oil Pan Design Parameters to Improve Engine Performance During Oil Cool Down and Warm Up Periods

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An Integrated Simulation Methodology of Thermal Management Systems for the CO2 Reduction after Engine Cold Start

Cited by 10 publications

References 12 publications

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

Simulation Modeling of a Dual Fuel (Natural Gas-Diesel) Engine Using Early Direct Injection Technique of Natural Gas

Pengaruh Penggunaan Berbagai Jenis Material Elektroda Busi Terhadap Performa Mesin Dan Bentuk Nyala Api Pada Mesin Bensin 113 cc

Numerical Investigation on Oil Pan Design Parameters to Improve Engine Performance During Oil Cool Down and Warm Up Periods

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An Integrated Simulation Methodology of Thermal Management Systems for the CO₂ Reduction after Engine Cold Start