Gas Turbines
Gas Turbines
- The engine is rotary, so there is no need to change reciprocating motion into rotational motion.
- With a reciprocating engine, the structure makes it difficult to increase output by increasing the working fluid. On the other hand, a gas turbine makes it so easy to achieve high output because large amounts of working fluid can be continuously processed.
- Reciprocating engines carry out all steps of their cycle with just cylinders and pistons, but in a gas turbine, each step is performed by a specialized component: compression by the compressor, combustion by the combustor, and expansion by the turbine.
- A reciprocating engine carries out combustion intermittently. A gas turbine, however, performs combustion continuously. Therefore, once fuel is ignited and the turbine is started, combustion continues until the fuel supply is stopped.
Kawasaki gas turbines can run on a various range of fuel types.
In the past, applications of special fuels with characteristics such as low heating value have been very limited and such fuels have been thrown away instead of being effectively used. Kawasaki gas turbines can use various kinds of fuel in highly-efficient cogeneration systems, which contribute to global environmental preservation and a huge reduction of energy costs. Kawasaki gas turbines can use hydrogen—the leading candidate as a next-generation clean fuel.
Dual fuel system which can be used for both baseload and stand-by use
Dual Fuel combustion is available, in which the turbine can be operated by switching between two types of fuel.
The Duel Fuel “DLE + Liquid Standby Method” is often applied to co-generation and emergency double use generator sets. This method consists of using natural gas as the primary means of DLE combustion and liquid fuel for secondary, emergency situations. During ordinary conditions, the turbine operates with the DLE combustion method using gas fuel, thereby achieving low NOx and high efficiency. In case of an emergency with no gas supply, the gas turbine can start up on liquid fuel, or switch over from gas to liquid fuel so that power is supplied quickly and continuously.
