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Charles123
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Thank you
Regards
Regards
Charles123 said:2) Why centrifugal design is more appropriate/efficient for lower sizes? And why is it a less efficient design?
Charles123 said:Now I am confused. Aren`t centrifugal turbines supposed to be a "less efficient design"?
Gas turbine efficiency increases with size due to several factors. The first is that larger turbines have more space to accommodate larger and more efficient combustion chambers, which allows for more complete burning of fuel. Additionally, larger turbines can also have more stages of compression and expansion, leading to a higher pressure ratio and ultimately a higher efficiency. Furthermore, larger turbines have longer blades, which allows for more efficient and smoother airflow. Finally, larger turbines can also have more advanced cooling systems, which can help increase efficiency.
There is a practical limit to the size of a gas turbine due to technological constraints. The size of the turbine is limited by the materials and manufacturing processes available, as well as the logistics of transportation and installation. Additionally, larger turbines may also face challenges in terms of stability and control, making them less efficient. Therefore, while there is no theoretical limit, there are practical limitations to the size of a gas turbine.
No, not all gas turbines follow the same efficiency trend with size. While larger turbines tend to have higher efficiencies, there are other factors that can affect efficiency such as design, operating conditions, and maintenance. Additionally, different types of gas turbines (such as industrial or aero-derivative) may have different efficiency trends with size due to their different applications and operational requirements.
The efficiency of a gas turbine directly impacts its performance. A higher efficiency means that the turbine can convert a greater percentage of the energy in the fuel into mechanical energy, resulting in more power generation. This can also lead to lower fuel consumption and reduced emissions, making the turbine more cost-effective and environmentally friendly.
While larger gas turbines generally have higher efficiencies, there are some disadvantages to using them. One major disadvantage is the cost of installation and operation, as larger turbines require more resources and infrastructure. Additionally, larger turbines may also have higher maintenance and repair costs. Furthermore, larger turbines may also face challenges in terms of stability and control, which can affect their overall performance.