Diesel Generator Sets And Gas Turbines Differences And Characteristics

Gas turbines use high-temperature and high-pressure saturated steam to drive the turbine rotation, and finally the piston pushes the rotating shaft to rotate, along with a huge exhaust system. The work is mainly adjusted by regulating the fuel intake. They require few peripheral auxiliary equipment. However, they actually need a large number of external auxiliary equipment. The essential difference lies in the different power sources. Gas turbines can be made small in size. One is a gas turbine and the other is a diesel engine.

A diesel engine uses diesel fuel to burn in the cylinder to push the piston to do work. For example, a boiler that generates steam has high power. It is suitable for power generation in power plants, but the adjustment of speed and power is relatively easy and simple. It mainly relies on the steam intake to adjust the work, and the adjustment of speed and power is complex.

A diesel generator set is a power supply device that uses a diesel engine as the prime mover to drive a synchronous generator to generate electricity. So why do people like to choose diesel generator sets as backup power sources? Because diesel generator sets have the following advantages:

1.The operation technology of diesel generator sets is relatively simple, easy for general operators to master, requiring few operators, convenient maintenance, and easy maintenance during standby.

2.Diesel generator sets have high power supply reliability and automation functions; emergency power stations with complete functions have automatic start, automatic loading, automatic fault alarm and automatic protection functions. The generator sets can operate fully automatically without operators, realizing unattended operation.

3.Diesel generator sets are relatively simple, with few auxiliary equipment, small size and light weight. Compared with hydro-generator sets that need to build dams, steam turbine sets that need to be equipped with boilers, fuel reserves and water treatment systems, diesel generator sets have small floor area, fast construction speed and low investment cost. Common diesel generator sets adopt independent configuration, while standby generator sets or emergency generator sets are generally used in conjunction with power transformation and distribution equipment. At the same time, diesel generator sets do not need sufficient water sources (the cooling water consumption of diesel engines is 34 - 52L/(kW.h), only 1/10 of that of steam turbine generator sets), so the installation location of the unit is flexible.

4.It starts quickly and can reach full power in just a few seconds. The emergency load can be brought to full load within 1 minute (normally 5 - 30 minutes). The shutdown process is short and can be started and stopped frequently. Therefore, diesel generator sets are very suitable as emergency generator sets or standby generator sets.

5.The diesel engine is currently the thermal engine with the highest thermal efficiency, with an effective thermal efficiency of 30% - 46%. The effective thermal efficiency of high-pressure steam turbines is about 20% - 40%, and that of gas turbines is about 20% - 30%. Therefore, diesel generator sets have lower fuel consumption compared with gas turbines.

Today, Dingbo Power Generator Set Manufacturer will share the differences and characteristics between diesel generator sets and gas turbines, hoping to be helpful to everyone. Because of its excellent performance characteristics, diesel generator sets can be used as emergency backup power sources in important departments such as communications, banks, hotels, and airports, and can quickly provide stable AC power once the mains power is cut off.

Dingbo Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to [email protected] we will pay highly attention on your question.