Performance and emissions of a direct injection internal combustion engine devised for joint operation with a high-pressure thermochemical recuperation system

Energy ◽  
2017 ◽  
Vol 124 ◽  
pp. 214-226 ◽  
Author(s):  
A. Poran ◽  
L. Tartakovsky
Keyword(s):  
High Pressure ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Direct Injection ◽  
Internal Combustion ◽  
Joint Operation ◽  
Performance And Emissions

scholarly journals Combined Effect Of Inlet Manifold Swirl And Piston Head Configuration In A Constant Speed Four Stoke Diesel Engine

2019 ◽  
Vol 8 (11) ◽  
pp. 3406-3409
Keyword(s):  
Internal Combustion Engine ◽  
New Technologies ◽  
Combustion Engine ◽  
Direct Injection ◽  
Engine Performance ◽  
Internal Combustion ◽  
Intake Manifold ◽  
Piston Head ◽  
Performance And Emissions ◽  
Efficient Combustion

The internal combustion engine manifold has a subsystem that supplies the fresh A/F mixture to the engine cylinders where the fuel is combusted. For efficient combustion of charge, the walls of the intake manifold must be smooth / polished to minimize any side resistance. To redesign the inlet port of a small internal combustion engine, to increase the production of turbulence by a swirl. A good swirl promotes more rapid combustion and improves efficiency. The CI engine has a piston shaped flat on the crown and a concave combustion chamber, with this geometry we are driving the engine. But here the A/F ratio mixture cannot mix properly. To avoid this we make piston geometry changes. The main objective of this project is that three new technologies have been adopted here. The first stage is varying the diameter of the convergence - the divergent nozzle. The second stage is the change on the piston head and the last stage is replacing the inlet and exhaust valve with pitch 0.5. Mm to 2 mm and the cut thread depth is 4 mm and three threads per inch. All of these techniques aim to investigate performance techniques to increase air flow to achieve improved engine performance and emissions in direct injection (DI) single cylinder diesel engines. Compared with traditional engine.

A Feasibility Study into the Use of Direct Injection of Exhaust Generated Steam for Improving the Efficiency of Reciprocating Internal Combustion Engines

1980 ◽  
Vol 194 (1) ◽  
pp. 157-169
Author(s):  
L. C. Hall ◽  
M. E. Saatci
Keyword(s):  
Computer Simulation ◽  
Internal Combustion Engine ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Direct Injection ◽  
Thermodynamic Cycle ◽  
Steam Injection ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Three Stages

This paper reports on a study into the feasibility of generating steam, using the exhaust gases of a reciprocating internal combustion engine, and expanding it in the cylinders of the engine to produce additional power without increasing the fuel consumption. The study was conducted in three stages; firstly an equivalent ideal thermodynamic cycle was analysed to examine the fundamental principles, secondly a computer simulation was carried out based on a particular engine, and thirdly an attempt was made to modify the engine and run it with steam injection. The results suggest that this proposal is thermodynamically sound and could in practice permit substantial gains in efficiency using relatively straightforward technology.

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