Gas Turbine Generator Cycles

A combustion gas turbine is a rotary engine that extracts energy from the combustion gas stream. It has an upstream compressor coupled to a downstream turbine, and a combustion chamber in-between. It has an upstream compressor coupled to a downstream turbine, and a combustion chamber in-between. Energy is added in the combustor, where fuel is mixed with air and ignited. Energy added in the combustion chamber, where fuel is mixed with air and ignited. Combustion increases the temperature, velocity and volume of the gas flow. Combustion increases the temperature, velocity and volume of gas flow. This is directed through a nozzle over the turbine's blades, spinning the turbine and powering the compressor. It is directed through a nozzle over the turbine blades, spinning the turbine and the compressor turned on. Energy is extracted in the form of shaft power the which is used to drive an electric generator. Energy is extracted in the form of shaft power is used to drive an electric generator.

Combined Cycle

A combined cycle is a power producing engine or plant employs more than That one thermodynamic cycle. Combined cycle is a power producing engine or plant that employs more than one thermodynamic cycle. Gas turbine engines are only Able to use a portion of the fuel generates Their energy. gas turbine engines can only use a portion of fuel energy to produce. The remaining heat from combustion is Generally wasted. Residual heat from combustion is generally wasted. Combining two or more "cycles", Such as the Brayton cycle (gas turbine) and Rankine cycle (steam turbine, condenser, cooling tower), results in improved overall efficiency. Combining two or more "cycles", such as the Brayton cycle (gas turbine) and Rankine cycle (steam turbines, condensers, cooling towers), resulting in improved overall efficiency. In a combined cycle power plant, a gas turbine generator generates electricity and the exhaust, waste heat is used to the make steam to generate additional electricity using a steam turbine; this last step enhances the efficiency of electricity generation. In a combined cycle power plant, gas turbine generator generates electricity and gas waste, the waste heat is used to make steam to generate additional electricity using steam turbines; this last step increases the efficiency of electricity generation.

Simplified Combined Cycle (SCC)

SCC technology gas turbine combustion similarly Captures waste heat and turns it into steam, creating additional power without the need for a steam turbine, condenser or cooling tower. SCC technology also captures waste heat of combustion gas turbine and convert it into steam, creating additional power without the need for a steam turbine, condenser or cooling tower. Like the combined cycle, capturing this waste heat results in Increased production of kWh without additional fuel being burned. Such as combined cycle, this result captures waste heat in the increased production of kWh without additional fuel is burned. Because injected steam cools the combustor's hot gases, it is possible to burn additional fuel and stay in compliance with the thermal limits of the engine. Because the steam injected gas cools the hot combustion chamber, it is possible to burn extra fuel and live according to the thermal limit of the machine. The result is Increased capacity and improved efficiency. The result is increased capacity and improved efficiency.
SCC achieves emissions improvements by pre-mixing of steam and fuel before injection into the combustor. SCC emissions improvements achieved by pre-mixing steam and fuel prior to injection into the combustor. The result is a smaller, cooler flame the which reduces NO x. The result is a cold, a small fire which reduces NO x. NO x of less than 5 ppmvd has been Achieved in the field, while in rig tests of NO x atmospheric levels of less than 2 ppmvd have been Achieved. NO x is less than 5 ppmvd has been achieved in the field, while in the test rig atmospheric NO x levels of less than 2 ppmvd have been achieved.
The low NO x levels are Achieved Because CO stays below 10 ppmvd, while steam injection is Increased to levels not achievable without a very homogeneous mixture of steam and fuel. NO x is achieved due to low levels of CO remained below 10 ppmvd, while the steam injection to increase to levels that can not be achieved without a highly homogeneous mixture of steam and fuel. The ability to Produce the NO x and CO allows Greater turndown while maintaining compliance. The ability to produce NO x and CO allow greater turndown while maintaining compliance.
Usually, SCC reduces the turbine inlet temperature and hot gas path extends the Time Between Overhaul by at least fifty percent. Typically, SCC reduces the turbine entry temperature and extend the time path of hot gas between the improvement by at least fifty percent.
Faster start requiring less fuel is possible Because steam can be injected in the gas turbine as Quickly as it is produced, avoiding the steam turbine warm-up requirements. Quickly began to require less fuel is possible because the steam can be injected in a gas turbine as fast as produced, avoiding the steam turbine heating requirements.