YUCHAI YC4F Series Engine for Marine World-class high speed engine for speed pursuer. Yuchai sealing technology in piston ring and valve oil seal reduces the lube oil consumption. High reliability, High reliability and low maintenance cost. Compact size facilitates installation, maintenance and repair. Easy operating and nature friendly with low noise, rapid start ability and […]
YUCHAI YC4D Series Engine for Marine High performance combustion chamber and intake swirl contribute to lower fuel consumption. Yuchai sealing technology in piston ring and valve oil seal reduces the lube oil consumption. High fuel efficiency and low maintenance cost. Compact size facilitates installation, maintenance and repair. Easy operating and nature friendly with low […]
Components of Combustion Process Combustion in diesel engines is very complex and until the 1990s, its detailed mechanisms were not well understood. For decades its complexity seemed to defy researchers’ attempts to unlock its many secrets despite the availability of modern tools such as high speed photography used in “transparent” engines, computational power of contemporary […]
Cylinder Combustion Fuel oil is a hydrocarbon consisting of hydrogen and carbon, together with other elements most of which are unwanted. Hydrogen has a higher calorific value than carbon, therefore, more heat may be obtained from fuels containing higher Hydrogen/Carbon ratios. The lower specific gravity of hydrogen than carbon allows a rough rule of thumb […]
Main Engine Commisioning in Ship This includes the following main components: HVAC, piping and pumps, electrical and mechanical equipment, along with main and auxiliary engines. This can be carried out by the shipyard personnel, but it is quite specialized. At the offshore construction yard, we normally brought the equipment and systems up to a pre-commissioning […]
Oil in The Refrigeration System in Marine Indication oil in the refrigeration system : Temperature is not dropping in the cold rooms as normal, due to fact that oil act as insulation in the evaporator. It may cause excessive frost on the suction line. Refrigerant compressor runs for the extended period of time. Lubricating oil […]
Air in The Refrigeration System Indication air in the refrigeration system : This may cause the refrigeration compressor to overheat, with a high discharge pressure and normal condensing temperature. There are possibilities of small air bubbles in the liquid sight glass of the condenser. Condensing pressure of the refrigerant in the condenser may be high. […]
Moisture in The Refrigeration System This normally comes with the ingress of air in the system. Moisture may freeze at the expansion valve, giving some of the indication of under charging. It will contribute to the corrosion in the system. It may cause lubrication problems and breakdown of the lubricating oil in the refrigerant compressor. […]
Overcharge of Refrigeration System Indication Overcharge of Refrigeration System : The liquid level in the condenser is too high (high condenser gauge reading). This will reduce the available condensing surface, with corresponding increase in the saturation temperature and pressure. High pressure switch of the refrigerant compressor activates and stops the compressor. The suction and the […]
Marine Refrigeration System A marine refrigeration system is a key element onboard any vessel. Food and drinks, cargo and garbage need to be kept in optimal conditions at all times. Well-maintained food and drinks are essential for passengers’ and crew’s health. And many cargo ships need to be equipped with high quality marine refrigeration and air […]
