Nowadays, more and more enterprises rely on diesel generators to provide stable electricity. In order to keep diesel generators running normally for a long time, in addition to maintaining good lubrication and maintenance of the engine, the correct "load" is also very important. In fact, diesel generators operating at low load or no load can bring greater harm. Why is this? Saiwei Energy provides you with a detailed analysis:

Result of low load or no-load operation:

The capacity and requirements of diesel generator sets vary depending on the generator, but there are some widely accepted guidelines. Most people agree that generators should operate at a minimum load of 30% of their maximum capacity. This is an absolute minimum value, far from ideal, and typically a load of 60-75% of the maximum capacity is considered desirable. All costs should be spared to avoid no-load operation. In addition to short-term diagnostic operation (such as checking for appropriate idle), the consequences of low load or no-load operation include:

Low cylinder pressure

The working principle of a diesel engine is to compress hot air to an extreme degree (far exceeding that of a gasoline engine), so when fuel enters the cylinder, it can be ignited without the need for a spark plug. Therefore, high cylinder pressure is an indispensable part of the normal operation of the engine. When the generator operates at low loads, low cylinder pressure can lead to poor combustion, thereby reducing the efficiency of the engine. Poor combustion can lead to cycling problems& Flash; Coal smoke and unburned fuel residue block the already poorly sealed piston rings, exacerbating the low-pressure problem.

Low temperature

At low loads, the engine cools down and operates at temperatures that are not sufficient to generate appropriate combustion, which also results in only partial combustion of the fuel. In addition to sediment, this can also lead to a large amount of exhaust emissions, which are common white smoke in poorly running diesel engines& Flash; Hazardous smoke with high emissions of hydrocarbons.

Lower oil performance and higher fuel consumption

Low load operation can cause serious damage to the engine oil distribution system in various ways, and the hard carbon deposits formed due to poor combustion can cause hole polishing, thereby damaging the honing marks (grooves) of the oil. Oil will burn, and the consumption of oil will increase. Due to poor sealing of the piston rings, unburned fuel will contaminate the lubricating oil, and condensate and residue will also contaminate the lubricating oil, leading to destructive acid accumulation.

Guangzhou Saiwei Energy Technology Co., Ltd. is a comprehensive enterprise specializing in the design, production, and installation of generators. Guangzhou Saiwei has many years of experience in engineering design and installation services. For many years, Guangzhou Saiwei has been committed to providing every customer with comprehensive products and energy solutions, including technical consulting, whole machine and generator supply, operation training, etc., with leading technology and first-class quality. The product range covers land diesel generator sets, marine generator sets, high-voltage generator sets, etc., and is widely used in industries such as power, communication, iron towers, healthcare, financial systems, data centers, etc. Welcome to inquire: 13302262088