## How do you calculate the specific fuel consumption of a marine diesel engine?

Simple Method

1. Formula To Estimate Maximum Engine Fuel Consumption. Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight.
2. 300-hp Diesel Engine Example. GPH = (0.4 x 300)/ 7.2 = 105/7.2 = 16.6 GPH.
3. 300-hp Gasoline Engine Example. GPH = (0.50 x 300)/ 6.1 = 150/6.1 = 24.5 GPH.
4. Other Related Resources:

How much fuel does a marine diesel use?

On average, a quality marine diesel engine will burn about 0.4 pounds of fuel per hour for each unit of horsepower. Other factors, such as water conditions, drag, and vessel weight will also increase your fuel burn. In average conditions, a 300 horsepower diesel engine would burn 16.6 gallons of diesel fuel per hour.

### How is diesel engine fuel consumption calculated?

The well-known method to theoretically evaluate automobile fuel consumption QS at normal movement (in l(100 km)-1) uses the following formula [1, 2, 3, 7] QS = ge Pe / 36 ρf V, (1) where ge – specific fuel consumption by free-piston engine in calculated movement mode, g(kW*h)-1; Pe – power taken from the crankshaft of …

How do you calculate fuel consumption on a boat?

To determine an average fuel usage at gallons per hour (gph), divide horsepower by 10. Therefore, a boater with a four-stroke, 250-hp marine outboard engine running at full throttle, or about 6,100 rpm, is using 25 gph. But, an engine is most efficient at 75 to 80 percent of rated output rather than at full throttle.

#### What is specific fuel consumption of diesel?

There is a corresponding brake specific fuel consumption (BSFC) for engines that produce shaft power. Gathering all the terms together, TSFC is the mass of fuel burned by an engine in one hour divided by the thrust that the engine produces.

How far can my boat go?

A small inflatable boat can travel out 1 to 2 miles, a 20-foot center console can handle 5 to 10 miles offshore, and a cruiser can travel hundreds of miles. These numbers are just ranges, and the maximum safe distance you can go depends on the weather, your boat, and how good a captain you are.

## How do I calculate fuel usage per km?

The actual formula to get km per litre is 100 divided by 8 = 12.5 (Your car will give you 12.5 km on one litre)….To convert Formula to use.

km per litre to litres per 100 km divide 100 by km per litre
litres per 100km to km per litre divide 100 by litres per 100 km

What causes high fuel consumption in diesel engines?

This bad habit is threefold – driving too fast, accelerating too quickly, and stopping too suddenly. All three of these actions lead to high fuel consumption. Where possible, you should accelerate slowly and drive with the speed of traffic.

### How many GPH is a 700 hp?

Theoretically, the mechanical pump could provide the (approx) 60 gallons per hour that the engine would need, using the formula of 1/2 lb of fuel per horsepower per hour. That’s if you used a quality mechanical pump and not a stocker. So, 700 x . 5 = 350 gal.

How many GPH is 1000 hp?

Making the Choice

Fuel Pump Free Flow Carbureted Engine Carbureted w/ Power Adder
50 gph/190 lph 600 hp 500 hp
67 gph/255 lph 750 hp 650 hp
90 gph/340 lph 1000 hp 850 hp
125 gph/470 lph 1300 hp 1000 hp

#### How much fuel does a boat use per hour?

In order to be able to read the calculation right, any boat owner should know that gasoline is almost 6.1 pounds per gallon while diesel is 7.2 pounds per gallon. Usually, if you consider that all sea conditions are pristine, the fuel consumption of a normal diesel engine is 0.4 pounds per hour for each unit of horsepower.

How much fuel does a diesel engine use?

Usually, if you consider that all sea conditions are pristine, the fuel consumption of a normal diesel engine is 0.4 pounds per hour for each unit of horsepower. Calculating it by hand is complicated, which is why many people choose to use online calculators .

## How to calculate the maximum fuel consumption for an engine?

Formula To Estimate Maximum Engine Fuel Consumption Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight

How can I find out how much fuel my boat is using?

You can use any Boating boat test as a model for this. Of course, you can also install a fuel consumption monitor if your boat’s engine does not provide a fuel consumption readout. Additionally, knowing your boat’s fuel consumption provides a good idea of how much it will cost you to operate the boat.