3D Numerical Simulation of Cooling-water Cavitation Flow of Cylinder Liner for Diesel Engine

2011 ◽  
Vol 47 (22) ◽  
pp. 167 ◽  
Author(s):  
Dongsheng XIA
Keyword(s):  
Numerical Simulation ◽  
Diesel Engine ◽  
Cooling Water ◽  
Cylinder Liner ◽  
Cavitation Flow ◽  
3D Numerical Simulation

scholarly journals Study on the Effect of Diaphragm Booster on the Pulsed Heat Transfer of Cooling System

2020 ◽  
Vol 6 (4) ◽  
pp. 214-222
Author(s):  
Y. Zhou ◽  
Z. Liu ◽  
A. Golyanin
Keyword(s):  
Heat Exchange ◽  
Diesel Engine ◽  
Cooling System ◽  
Cooling Water ◽  
Check Valve ◽  
Cylinder Liner ◽  
Circulation System ◽  
Engine Cylinder ◽  
Hydraulic Accumulator ◽  
Engine Cylinder Liner

This paper has developed a diesel engine cylinder liner and cooling water heat exchange enhancement device, including diesel engine cylinder liner, cylinder liner water cooler, hydraulic accumulator, check valve, diaphragm booster, centrifugal water pump, pulse valve and Conical tube. As well as the pulsating circulation system and booster system composed of equipment. The device heats the heat generated by the diesel engine cylinder liner in a pulsating circulation system through a cylinder circulator in a pulsating circulation system to exchange heat with the external low-temperature seawater. By controlling the opening and closing of the pulsating valve in the pulsating circulation system, fluid is generated in the pipe. Pulsing and hydraulically impacting the diaphragm booster connected near the pulsation valve pipeline, the fluid at the outlet of the diaphragm booster is subjected to hydraulic shock and circulates in a closed booster circuit connected to the diaphragm booster and passes through the cone during the flow. The shaped tube accelerates the fluid to return to the diaphragm supercharger, and the kinetic energy of the fluid is converted into the pressure in the pulsating heat exchange system by impacting the elastic diaphragm of the diaphragm supercharger, so that the pulsating speed is increased. The present invention is to increase the pulsating velocity of the diaphragm. Based on the design of the compressor drive, it improves energy efficiency, avoids the use of high-power water pumps, and saves equipment construction and daily operation.

Texture-induced effects causing reduction of friction in mixed lubrication for twin land oil control rings

2017 ◽  
Vol 232 (2) ◽  
pp. 166-178 ◽  
Author(s):  
Markus Söderfjäll ◽  
Roland Larsson ◽  
Pär Marklund ◽  
Andreas Almqvist
Keyword(s):  
Numerical Simulation ◽  
Diesel Engine ◽  
Major Part ◽  
Cylinder Liner ◽  
Mixed Lubrication ◽  
Heavy Duty ◽  
Cavitation Model ◽  
Heavy Duty Diesel Engine ◽  
Liner Surface ◽  
Heavy Duty Diesel

Piston rings are responsible for a major part of the frictional losses in a heavy-duty diesel engine. Such losses can be reduced by applying texture, such as dimples, on the cylinder liner surface. This paper investigates the effect of such texture on the friction between a land of the oil control ring and a textured cylinder liner via numerical simulation. A simulation model considering inertia and mixed lubrication together with a mass-conserving cavitation model is developed. The model is used to determine the dimple parameters that yield the lowest amount of friction for a specific oil control ring of a heavy-duty diesel engine.

A low-temperature multi-effect desalination system powered by the cooling water of a diesel engine

Desalination ◽  
2017 ◽  
Vol 404 ◽  
pp. 112-120 ◽  
Author(s):  
Fengming Zhang ◽  
Shiming Xu ◽  
Dongdong Feng ◽  
Shunquan Chen ◽  
Ruxu Du ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Low Temperature ◽  
Cooling Water
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