2015年10月8日星期四

The influence of elevated altitude use of diesel generator set

1. With the increase of altitude, the environment temperature is lower than that in plain area, generally every 1000 m, the environment temperature is about 6 degrees Celsius, and thin air, because the plateau as a result, the start of the diesel generator sex than plain area is poor.Users in the use, and low temperature start corresponding auxiliary start measures should be taken.
2. The output of the diesel genset current will change along with the change of altitude.Altitude increases, the power of diesel generator set, that is, output current, the fuel consumption rate, the effect is to spread to the electrical performance index in different degrees.Due to the rise of altitude, the boiling point of water.At the same time, wind pressure and cooling air quality of cooling air is reduced, and heat release per kilowatt in unit time increases, so the cooling system of heat dissipation conditions worse than plain.At high altitudes shoulds not be commonly use open cooling loop, closed cooling system pressure can be used to improve the plateau when using the boiling point of coolant.
3. As a result of the plateau low pressure, thin air, less oxygen component, the environment temperature is low, especially for natural intake diesel engine, combustion condition is poor, due to lack of air inflow diesel generator can't send the original is the nominal power, displacement, speed is different, so the ability to work in the plateau is not the same.When used in plateau, every 1000 m, rising power booster is about 6-10%, booster about 2 ~ 5%, so in plateau, use for a long time should be according to the local elevation, when the appropriate reduce oil.
4. The load moment of change, will cause the engine torque moment of change, and the output power of diesel engine is not instantaneous change, in general, instantaneous voltage and the instantaneous speed of these two indexes is not affected by altitude, but for the diesel units, the lagging behind of the supercharger response speed affect the response speed of the diesel engine rotating speed, the two measures was increased.


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