Take Shandong Weichai HW120GF as an example: the fuel consumption rate is less than or equal to 225 g/KW.H, which means it consumes 225 grams of fuel per kilowatt hour. The density of diesel is about 0.8, which is about 0.8. usually calculated as 0.8. The calculation method:
225 grams = 0.225 kilogram * 120 (KW) = 27 (kilogram) / 0.8 (mass ratio) = 33.75 liters
KW is relating to the power of the equipment, 120KW is *120, if 500*500
The dangers of low water temperature and low speed of 120 kW Weichai generator setThe dangers of low water temperature and low speed of 120 kW Weichai generator set h3>
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The 120 kW diesel generator generates 97.2 kW of electricity per hour.
Since the power factor of the load is 0.9, the efficiency of the generator can be 0.9, then the power of 120 kW, and the generator set 200 kW diesel can actually produce 97.2 kW of electricity per hour. therefore 120 kW The diesel generator ggenerates 97.2 kW of electricity per hour.
Diesel is a mixture of light petroleum products and complex hydrocarbons (approximately 10 to 22 carbon atoms). For diesel engine fuel.
1) When the temperature is low, the combustion conditions of diesel in the cylinder deteriorate, the fuel atomization is poor, the combustion period after ignition is prolonged, and the engine is prone to rough operation, which aggravates damage to crankshaft bearings, piston rings and other parts, and reduces power economy.
2) Water vapor after combustion easily condenses on the cylinder wall, causing metal corrosion.
3) Diesel combustion can dilute engine oil and worsen lubrication conditions.
4) The fuel is not completely burned and forms a colloid, causing the piston ring to get stuck in the piston ring groove, blockingof the valve and the reduction in pressure in the cylinder at the end of compression.
5) The water temperature is too low and the engine oil temperature is too low. Engine oil becomes thicker and fluidity becomes poor. The amount of oil pumped by the oil pump is low, resulting in insufficient oil. power supply to the generator. Additionally, the crankshaft bearing clearance becomes smaller and lubrication is reduced. Many operators do not want diesel generators to run at operating speeds. They believe that lower speeds will not cause a breakdown. In fact, too low a speed will also cause bad consequences, as follows:
1) Too low a speed will reduce the power output of the diesel engine and reduce its power;
2 ) Too low a rotation speed will cause a reduction in the working speed of each component, ce which will deteriorate the working performance of components, reduce the output pressure of oil pump, etc. ;
3) Reduce the reserve power of the diesel engine, which must be in normal operation. The diesel engine is under full load or overload.
4) If the speed is too low, the speed of the engine working machines; the linkage mechanism will also be reduced, which will reduce the mechanical performance of the work, such as reducing the water flow of the water pump, reducing the water pump. The elevator, etc.
There are only two speeds of normal generators: one is 1500 rpm and the other is 1800 rpm. It is wrong to artificially adjust the generator speed down or up.
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