For those that are getting readings over a wide margin approximating 1/2 a gallon per hour I would strongly suggest you use the higher reading for your calculations as anything less might leave you stranded. Also do not forget that not all fuel in the tank is usable so leave yourself a sensible reserve of around 15% of your tankage or more in upset seas. Gentlemen, the burn rate calculations will not be exact and do not have to be; they just have to be good enough. I drive my boat in similar fashion on every outing and I use an average calculated figure which consists of time idling, moving at slow speed and running at high RPM. Over time I have found out that my average burn rate is quite consistent at around .43 gph for the 2GM20F. I can consistently take on 25 gallons of fuel and be within + or - 1/4 to 1/2 gallon of my estimated total need. I allow myself a 3 to 4 gallon reserve depending on the condition of the seas. I know that my margin of error of 1/2 gph will be covered by the reserve. Since speed and distance are on a different formula there is no guarantee of the range you will get for your burn rate and tankage. This is where the condition of the hull, wind and currents become significant variables. I carry extra cans of fuel on some crossings not because I do not trust my burn rate calculations but because I do not know how long the crossing is going to take. Range is calculated on the water based on actual conditions and if you ever come into calculations that the fuel you have on board is not going to be enough to reach your destination then you better shut that engine down and sail to conserve fuel for your approach or you may seek a closer alternative destination. There is no big science behind these calculations, yes they are just a good enough approximation and they work. I have not found a fuel tank gauge that gives me the peace of mind of approximating how much fuel I have left. Keep doing your calculations every time you fill up dividing the amount of fuel taken in by the number of hours you ran the engine and keep upgrading that average burn rate.

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What is the Fuel Consumption Rate of Diesel Engine

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Diesel engine is an internal combustion engine using diesel as fuel, which belongs to compression ignition internal combustion engine. When the diesel engine is working, the air in the cylinder is compressed to a higher degree due to the movement of the piston. At the end of compression, the high temperature of 500 ~ 700 ' and the high pressure of 3.0 ~ 5.0 MPA can be reached in the cylinder. Then the fuel is sprayed into the high temperature air in the form of mist, and mixed with the high temperature air to form a combustible gas, which can ignite automatically.The energy released during combustion (the maximum explosion pressure is more than 10. OmpA) acts on the top surface of the piston, pushes the piston and converts it into rotating mechanical work through the connecting rod and crankshaft, and then outputs power to the outside. So what is the fuel consumption rate of diesel engine? This article by the top Bo power for you to briefly explain.

Fuel consumption rate of diesel engine.

The fuel consumption rate of diesel engine is an important index reflecting the economic performance of diesel engine. It refers to the fuel consumption per kilowatt power per unit time. It is a relative index measured and calculated in the laboratory.On the diesel engine test bench, the fuel consumption rate of the diesel engine can be calculated by measuring the power of the diesel engine and the fuel consumption per unit time, expressed by the letter Ge, and the unit is g / kW · H.

1. Calculation formula: Ge = (103 × G1)/Ne.

Where Ge is the fuel consumption rate (g / kW · h); G. Is the fuel consumption of LH (kg); NE is the power (kw). The fuel consumption rate of diesel engine is a relative index. Under the same conditions, the lower the fuel consumption rate, the better the economic performance of the diesel engine and the more fuel-efficient it is.

2. 100km fuel consumption (L / 100km): in actual use, the general way to measure whether the diesel engine saves fuel is to see the fuel consumption of the vehicle every 100km. The fuel consumption of 100km can only be obtained through actual use.

Fuel consumption of 100km (lg100km) = actual fuel consumption of vehicle (L) / driving distance of vehicle (km). The actual fuel consumption is related to the service conditions, tonnage and driving habits of the vehicle. Under the same driving conditions, the lower the fuel consumption of 100km, the more fuel-efficient the diesel engine is.

3. Hourly fuel consumption: for agricultural diesel engines, construction machinery diesel engines, etc., the fuel consumption of diesel engines can also be expressed by the weight of fuel consumed within one hour, which is called hourly fuel consumption, and the unit is kg / h. Due to the different power of diesel engines, the fuel consumption per hour or per 100km is also different, so the fuel consumption can not be used to measure the fuel economy of different diesel engines.

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