Why is it more difficult to start a diesel ge

17/03/2022

         The starting of the diesel generator is not only determined by its own technical conditions, but also affected by the outside temperature. It is more difficult to start at low temperature in winter, mainly due to the following reasons:
         1. In winter, the climate is cold, the ambient temperature is low, the viscosity of the oil increases, and the frictional resistance of various moving parts increases, which reduces the starting speed and makes it difficult to start.
         2. The battery capacity decreases as the temperature drops, which further reduces the starting speed.
         3. Due to the reduction of the starting speed, the leakage of compressed air increases, and the heat dissipation of the cylinder wall increases, which greatly reduces the temperature and pressure of the air at the end of compression, which increases the delay period of diesel ignition, and even cannot be burned in severe cases.

         4. The viscosity of diesel oil at low temperature increases, which reduces the injection speed. In addition, the swirl speed, temperature and pressure of the air at the end of compression are relatively low, so that the atomization quality of the diesel injected into the cylinder is poor, and it is difficult to form quickly with the air. A good combustible gas will ignite and burn in time, or even fail to catch fire, resulting in difficulty in starting.