scholarly journals Analysis of the Nozzle Hole Diameter Effect to Common Rail Diesel Engine Characteristics using a Calculated Model of an Internal Combustion Engine

2020 ◽  
Vol 8 (6) ◽  
pp. 2301-2308
Author(s):  
Andrey Y. Dunin
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Hole Diameter ◽  
Common Rail ◽  
Nozzle Hole ◽  
Calculated Model ◽  
Diameter Effect

Analysis and Research of the Combustion Process of YN4100QB Diesel Engine

2013 ◽  
Vol 744 ◽  
pp. 35-39
Author(s):  
Lei Ming Shi ◽  
Guang Hui Jia ◽  
Zhi Fei Zhang ◽  
Zhong Ming Xu
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Combustion Chamber ◽  
Optimization Design ◽  
Combustion Engine ◽  
Geometric Model ◽  
Combustion Process ◽  
Internal Combustion ◽  
Engine Combustion ◽  
Exhaust Noise

In order to obtain the foundation to the research on the Diesel Engine YN4100QB combustion process, exhaust, the optimal design of combustion chamber and the useful information for the design of exhaust muffler, the geometric model and mesh model of a type internal combustion engine are constructed by using FIRE software to analyze the working process of internal combustion engine. Exhaust noise is the main component of automobile noise in the study of controlling vehicle noise. It is primary to design a type of muffler which is good for agricultural automobile engine matching and noise reduction effect. The present car mufflers are all development means. So it is bound to cause the long cycle of product development and waste of resources. Even sometimes not only can it not reach the purpose of reducing the noise but also it leads to reduce the engine dynamic. The strength of the exhaust noise is closely related to engine combustion temperature and pressure. The calculation and initial parameters are applied to the software based on the combustion model and theory. According to the specific operation process of internal combustion engine. Five kinds of common operation condition was compiled. It is obtained for the detailed distribution parameters of combusted gas temperature pressure . It is also got for flow velocity of the fields in cylinder and given for the relation of the parameters and crankshaft angle for the further research. At the same time NOx emissions situation are got. The numerical results show that not only does it provide the 3D distribution data in different crank shaft angle inside the cylinder in the simulation of combustion process, but also it provides a basis for the engine combustion ,emission research, the optimization design of the combustion chamber and the useful information for the designs of muffler.

scholarly journals OPTIMIZATION OF WASTE MOTOR OIL IN SHIP DIESEL WITH HIGH BOOST BY WEAR CRITERION

2018 ◽  
pp. 78-86
Author(s):  
Maxim Igorevich Tarasov ◽  
Georgy Alexandrovich Gauk ◽  
Liudmila Anatolievna Semeniuk
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Optimal Level ◽  
Engine Oil ◽  
Resource Saving ◽  
Engine Wear ◽  
The Impact

The results of modeling the impact of oil burning on the condition of the ship forced trunk piston diesel engine when using lubricants with different operating properties. The dependence of wear rate on oil fume, the quality of used lubricants and marine diesel forcing is obtained by modeling wear using the theory of planning experiments. The area of minimal wear has been determined. There has been detected the most efficient waste oil providing favorable conditions for resource-saving operation of the internal combustion engine. It is inferred that reduction of engine oil fume changes the main parameters of its aging. At the same time, the intensity of oil aging in main directions and of engine wear reduce from 0.75 to 2.25 g/(kW∙h), whereas the fume increases. Its further increase is accompanied by an increase in the rate of oil aging and engine wear. The detected "fracture" depending on И( g y) after passing the border g yopt = 2.25-2.5 g/(kW∙h) is stipulated by different ratio of oil exchange in the lubrication system and the ingress of gases into the crankcase. There has been determined the degree of oil burning, at which sludging and lacquer formation of the internal combustion engine is least intense. The smallest carbon deposits on pistons and in the crankcase of the engine can be observed when the diesel engine is operating in the zone of optimal carbonation. Experimentally, the dependence of tribotechnical properties, in particular, wear of insoluble products of oil aging has been detected at different degrees of oil burning. It is revealed that these characteristics also depend on the quality of the used fuels and lubricants and the conditions of formation and turnover of the oil film on the mirror of the cylinder, the thermal effect on it of the engine workflow. The result of simulation is the prediction of resource-saving operation of marine trunk diesel engines by maintaining oil fume at the optimal level.

scholarly journals Crude palm oil as a complementary fuel for power generation in Amazonia: diesel engine performance, emissions, and economic assessment

2019 ◽  
Vol 42 ◽  
pp. e43882
Author(s):  
Omar Seye ◽  
Rubem Cesar Rodrigues Souza ◽  
Ramon Eduardo Pereira Silva ◽  
Robson Leal da Silva
Keyword(s):  
Power Generation ◽  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Palm Oil ◽  
Combustion Engine ◽  
Engine Performance ◽  
Internal Combustion ◽  
Nox Emissions ◽  
Crude Palm Oil ◽  
Diesel Cycle

This paper evaluates internal combustion engine performance parameters (Specific Fuel Consumption and engine torque) and pollutant emissions (O2, CO, and NOX), and also, provide an assessment of economic viability for operation in Amazonas state. Power supply to the communities in the Amazon region has as characteristics high costs for energy generation and low fare. Extractive activities include plenty of oily plant species, with potential use as biofuel for ICE (Diesel cycle) to obtain power generation together with pollutant emission reduction in comparison to fossil fuel. Experimental tests were carried out with five fuel blends (crude palm oil) and diesel, at constant angular speed (2,500 RPM – stationary regime), and four nominal engine loads (0%, 50%, 75%, and 100%) in a test bench dynamometer for an engine-driven generator for electrical-power, 4-Stroke internal combustion engine, Diesel cycle. Main conclusions are: a) SFC and torque are at the same order of magnitude for PO-00 (diesel) and PO-xx at BHP50/75/100%; b) O2 emissions show consistent decreasing behavior as BHP increases, compatible to a rich air-fuel ratio (λ > 1) and, at the same BHP condition, O2 (%) is slightly lower for higher PO-xx content; c) The CO emissions for PO-00 consistently decrease while the BHP increases, as for PO-xx those values present a non-linear behavior; at BHP75%-100_loads, CO emissions are higher for PO-20 and PO-25 in comparison to PO-00; d) The overall trend for NOX emissions is to increase, the higher the BHP; In general, NOx emissions are lower for PO-xx in comparison to PO-00, except for PO-10 which presents slightly higher values than PO-00 for all BHP range; e) Assessment on-trend costs indicates that using palm oil blends for Diesel engine-driven generators in the Amazon region is economically feasible, with an appropriate recommendation for a rated power higher than 800 kW.

scholarly journals Analisa Kerusakan Cylinder Head pada Diesel Engine QSK 50 MCRS Di Bengkel Sungai Sembilan Nunukan

Syntax Idea ◽  
2021 ◽  
Vol 3 (7) ◽  
pp. 1656
Author(s):  
Ismail Ramli ◽  
Al Amin Al Amin ◽  
Muhammad Huzairi
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Cylinder Head ◽  
Combustion Engine ◽  
Internal Combustion

Diesel Engine adalah motor bakar pembakaran dalam (Internal Combustion Engine), yang bahan bakarnya disemprotkan ke dalam ruang silinder pada waktu piston berada di titik mati atas (TMA). Penelitian ini bertujuan untuk mengetahui permasalahan yang terjadi pada kepala silinder, khususnya pada mesin QSK 50 MCRS, sehingga perawatan kepala silinder lebih baik, guna mengoptimalkan pengoperasian mesin dalam proses industri. Penelitian ini dilakukan untuk mendapatkan data guna mengetahui penyebab kerusakan kepala silinder pada mesin QSK 50 MCRS. Ada beberapa langkah yang dilakukan termasuk pembersihan, inspeksi visual, dan pengukuran dan analisis kerusakan pada kepala silinder. Hasil penelitian ini menunjukkan bahwa ada erosi selama proses pembersihan komponen. Ada kerusakan pada setiap permukaan ruang pembakaran di kepala silinder. Karakteristik kerusakan menunjukkan bahwa telah terjadi erosi kavitasi pada permukaan ruang pembakaran. Erosi kavitasi terjadi pada permukaan ruang pembakaran karena gelembung udara yang meledak atau meledak selama stroke daya dari siklus empat stroke mesin. Erosi kavitasi ditandai dengan permukaan dengan lubang kecil. Analisis kepala 16 silinder QSK 50 MCRS menunjukkan bahwa semua kepala silinder masih dapat digunakan lagi, karena kepala silinder masih dalam cakupan standar yang ditetapkan dalam manual.

scholarly journals Investigation of the environmental characteristics of a diesel engine when operating on activated fuel

2021 ◽  
Vol 1 (1) ◽  
pp. 54-62
Author(s):  
S.A. Plotnikov ◽  
◽  
A.N. Kartashevich ◽  
M.V. Motovilova ◽  
◽  
...  
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Diesel Fuel ◽  
Laboratory Tests ◽  
Combustion Engine ◽  
Combustion Process ◽  
Internal Combustion ◽  
Fuel Injector ◽  
Exhaust Gases ◽  
Technical Requirements

The internal combustion engine is the most widespread source of energy for vehicles. The main requirements for an internal combustion engine include: the efficiency of functioning as part of a vehicle, high performance indicators, as well as environmental parameters of the emission of exhaust gases into the environment. The fulfillment of these conditions is possible by improving the design of the engine, as well as improving the working process of the diesel engine while increasing the quality of diesel fuel or additional impact directly on the fuel itself. One of the most effective ways to influence diesel fuel is to transfer a certain amount of heat to it in the high-pressure fuel line in front of the injectors. At the same time, the physical and mechanical properties of diesel fuel change, which leads to a change in mixture formation and the combustion process in the engine cylinder. To intensify the combustion process, a method of preliminary high-temperature local heating of diesel fuel in the fuel supply system in front of the injectors was proposed. To achieve this goal, several main directions were identified, including the study of environmen-tal indicators during the intensification of the combustion process. The tests were carried out in stages. At the first stage, the operation of the fuel injector when op-erating on activated fuel (bench, laboratory tests) was investigated. At the next stage, the indicators of the diesel engine in the main modes of its operation were investigated. Bench (laboratory) tests made it possible to draw a conclusion about the operability and compli-ance of the aggregate with the technical requirements of the manufacturer and the parameters of GOST. The bench tests proved the possibility of a diesel engine running on activated fuel without deteriorating environmental performance in the exhaust gases; at the same time, changes in the tox-icity and smoke of the exhaust gases from different values of the average effective pressure were revealed.

The Need for Excellence

1989 ◽  
Vol 203 (1) ◽  
pp. 1-18
Author(s):  
C C J French
Keyword(s):  
Heat Transfer ◽  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Diesel Engines ◽  
Combustion Engine ◽  
Internal Combustion ◽  
World Market ◽  
The Future

The 1988 President gives a brief resume of his education and apprenticeship and then goes on to review his career at Ricardo Consulting Engineers. He describes some of the projects with which he has been involved, including a torpedo engine, a recycle diesel engine, heat transfer in engines, two-cycle diesel engines and the Atlas research engine. He discusses the future of the reciprocating internal combustion engine and concludes by emphasizing the need for engineering excellence in an increasingly competitive world market.

Benefits With Common Rail Injection for Medium Speed Engines

2003 ◽  
Author(s):  
Udo Schlemmer-Kelling ◽  
Thomas Montag
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Technical Conference ◽  
Common Rail ◽  
Nox Emission ◽  
Common Rail System ◽  
Port Authorities ◽  
Medium Speed ◽  
Common Rail Injection

The NOx emission of sea going ships is limited by the IMO. The black smoke emission is in the focus of the port authorities and the ship owners. More stringent limits are expected for the near future. Caterpillar Motoren decided to be pro active and to start an emission reduction program in the mid of the nineties. Inside the engine technology like: higher compression ratio, Miller Cycle, injection tuning and internal exhaust gas recirculation were investigated to reduce the NOx Emission. To lower the soot emission a Common Rail system was implemented. The effects of Pre-, Post- and Split injections were optimized for further emission reductions. A special trim of the injection characteristic can improve the transient load acceptance of the engine. A low emission strategy was defined.   NOTE: This paper was presented at the ASME 2003 Internal Combustion Engine Division Spring Technical Conference but was printed in the ASME 2003 Internal Combustion Engine and Rail Transportation Divisions Fall Technical Conference proceedings, pages 443–454. It should appear under the CIMAC heading.

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