Sage-Tips

Are modern petrol engines better than diesel?

Modern small petrol engines that have their power boosted by turbocharging can be both responsive and fuel-efficient. Petrol engines work differently to diesel engines and one of the side effects is that they generally produce far lower particulate emissions.

Do ships use diesel or petrol?

Nearly all cargo ships use diesel combustion engines to turn the propellers, plus diesel generators that power onboard lighting systems and communications equipment. Many vessels still burn heavy bunker fuel, a viscous, carbon-intensive petroleum product that’s left from the crude oil refining process.

Why people are selling diesel cars?

Torque: Another reason that drove the popularity of diesel cars was the utility they offered and their enthusiastic nature. The extra torque that a diesel engine generates makes it fit for utility, load-carrying vehicles; and they also gave that extra grunt to huge SUVs too.

Which is more fun to drive petrol or diesel?

Petrols generally have weak low-end torque, making them cumbersome to drive in city traffic. Also, for enthusiasts on a budget, the diesel car is much more fun than a petrol due to the sheer torque that modern turbo diesels make.

Is diesel more polluting than petrol?

As a result, according to data from the NGO Transport and Environment, diesel engines in circulation are, on average, polluting more than petrol engines in terms of CO2 emitted over their life cycle.

Is it easier to drive petrol or diesel?

Driving experience: This is due to diesel cars operating at a lower torque, which means they don’t rev as highly as petrol. Therefore, diesel cars are generally better for long distances as they require less effort than petrol cars.

What do modern ships use for fuel?

Engine. Cruise ships use either gas turbines, diesel-electric or diesel engines for propulsion and electric power. Diesel engines are the most traditional type. With this type of engine, the diesel fuels the pistons and crankshaft, which attaches to the propeller and ultimately moves the ship forward.

Why do boats have diesel engines?

This adds up to considerably more stress on the engines. Granted, diesels are built to withstand much higher combustion pressures and heat, and are inherently stronger than similar-sized gasoline engines, but today they are also subjected to a lot more stress than diesel engines in common use 15 or 20 years ago.

Why diesel engines are better?

Diesel fuel simply packs more energy in every gallon than gas fuel, which makes it more economical overall. Diesel cars also have more torque, which results in better fuel economy along with more impressive acceleration.

Are diesels quick?

Diesels feel faster because in lower rev “normal conditions” driving – up to say 2500-3000rpm- you will accelerate faster than a normal asiprated petrol of similar BHP but lower torque. Diesels have progressed far more than petrol engines in the last 10-15yrs.

What are the advantages of diesel-electric cruise ship engines?

The main advantage of the diesel-electric cruise ship engine systems is efficiency as they allow main engines to operate near the most efficient speed, no matter if the ship is moving at 5 or 25 knots. Losing electrical power is devastating to ships.

How does the ship’s power output reduce fuel consumption?

The ship’s 4 main engines are dual-fuel (heavy oil and LNG gas oil) thus reducing fuel consumption. The ship has an advanced filtering system that reduces stack emissions (greenhouse gases). The ship’s propulsion features 1 pair of stabilizers and 2x ABB-pod drives (new XO-Pod series, power output per unit: is 3 MW).

What are the different types of fuels used in marine engines?

As the oil is heated fuels are drawn off at different temperatures. From the point of view of marine fuels, the first types to be of use are marine gas oil (MGO) and marine diesel oil (MDO). These are the distillate fuels and used mostly in high and medium speed engines and gensets.

What kind of engine does a Carnival Cruise ship have?

The above photo is of the Vista-class Carnival cruise ship engine room. The engine type is “MAN 2 times; 14V48/60CR” (common-rail diesel injection system): All ships are supplied with emergency generators to maintain vital electrical power.