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To know how much fuel a 250KVA diesel generator uses per hour, referring to the operator's manual is all that is needed. It states that properly maintained diesel generators of this size average a fuel consumption of 21 gallons per hour.

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9y ago
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10y ago

Producing a horse-power for 1 hour commonly uses 0.5 lb of fuel according to a common rule-of-thumb. 1 kWh is a little more, so 1 kWh would take 0.67 lb of fuel on that rule.

A 250 kVA generator would probably have additional fixed losses of several kW, but the above figure is probably a good estimate of the marginal increase in fuel needed for that margin of extra power generated.

Diesel fuel weighs about 8 lb per gallon.

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Q: How do you calculate fuel consumption per hour of 250 kva diesel generator?
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Does load affects fuel consumption per hour of a diesel generator?

If the generator is to maintain the same rpm and power output, then a heavier load will increase the diesel consumption. The revolutions per minute the generator runs will increase as the load increases, thereby resulting in an increase in diesel consumption to maintain the high rpm. A Generator has a governor which attempts to maintain frequency at 60 Hz for North America. For the generator to increase the power output at the same frequency, the governor will increase the fuel and air to the engine. The fuel consumption will not be linear because of the curves associated with the particular engine. The fuel to KWH is know as the heat rate curve for the generator.


Why Fuel consumption varying when the generator load varies?

with decrease in fuel consumption the amount of steam produced is also reduced.Hence when lower quantity of steam passes through the turbine the torque generated is less and since generator and turbine are coupled on a single shaft the generator torque also decrease which reduces load.


Which calculator helps to calculate fuel consumption?

A pen and paper. Miles driven divided by gallons of fuel used gives you mpg.


What is the fuel consumption of a 30 KVA Perkins generator at full load?

The Perkins 100 KVA generator uses approximately 23.8 Liters per hour. The Perkins KVA generator can be purchased at any Perkins licensed dealer.


What is the formula of fuel consumption in diesel generator?

Here is the formula, Per hour consumption = Diesel consumed / Total DG run hours Diesel consumed = Previous closing balance - Actual closing balace Daily DG run hours = (Total DG run hours / (DG capacity*24 - Total DG run hours)) * 24 / (( Total DG run hours / ( DG capacity * 24 - Total DG run hours )) + 1 Regards, Shibin shibin.hesel@gmail.com

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Does load affects fuel consumption per hour of a diesel generator?

If the generator is to maintain the same rpm and power output, then a heavier load will increase the diesel consumption. The revolutions per minute the generator runs will increase as the load increases, thereby resulting in an increase in diesel consumption to maintain the high rpm. A Generator has a governor which attempts to maintain frequency at 60 Hz for North America. For the generator to increase the power output at the same frequency, the governor will increase the fuel and air to the engine. The fuel consumption will not be linear because of the curves associated with the particular engine. The fuel to KWH is know as the heat rate curve for the generator.


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How much diesel is used in a diesel powered generator?

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What is Fuel consumption for a 125kva diesel generator?

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