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Overview of Gas Turbines: Applications, Components, Types and Design

Introduction: Gas turbines have become a crucial part of modern power generation, propulsion, and mechanical drive systems in various industries. They are known for their high power density, fast start-up time, and excellent thermal efficiency. In this article, we will be discussing the various applications of gas turbines, their working components, different types, and design considerations.

Applications: Gas turbines are mainly used in the power generation industry, where they are utilized to generate electricity. They are also used in the aerospace industry for aircraft propulsion, as well as in oil and gas production for mechanical drive systems. In addition, gas turbines are used for ship propulsion, and in various industrial processes, where they serve as a source of power for driving compressors, pumps, and generators.

Working Components: Gas turbines consist of three main components: a compressor, a combustion chamber, and a turbine. The compressor compresses the incoming air and supplies it to the combustion chamber, where it is mixed with fuel and burned. The hot gases produced by the combustion are then directed towards the turbine, where they expand and drive the rotor, producing power.

Types of Gas Turbines: There are three main types of gas turbines: simple cycle, combined cycle, and cogeneration. Simple cycle gas turbines are the most basic type and are used primarily for power generation. Combined cycle gas turbines are more complex and are used for combined heat and power (CHP) applications. Cogeneration gas turbines are used for power generation and process heat applications, where the waste heat generated by the combustion process is utilized for heating or cooling.

Design Considerations: When designing a gas turbine, various factors must be taken into account, such as the operating temperature, pressure, and speed of the system. The design must also be optimized for maximum thermal efficiency, and must take into account the materials used, the manufacturing process, and the maintenance requirements. In addition, the design must ensure that the system meets all relevant environmental and safety regulations.

Keywords: Gas turbines, power generation, propulsion, mechanical drive, thermal efficiency, components, simple cycle, combined cycle, cogeneration, design considerations.

References:

  1. J.R. wellness, “Gas Turbine Engineering Handbook”, 4th Edition, Elsevier, 2015.
  2. K.K. Singh, “Gas Turbines: Performance and Operations”, Wiley, 2016.
  3. M.A. Shah and S.M. Ali, “Gas Turbines: Principles and Practice”, Springer, 2010.
  4. D.S. Barrow, “Gas Turbine Theory”, 7th Edition, Pearson, 2014.
  5. R.K. Jain, “Gas Turbines: Design, Development, and Applications”, CRC Press, 2009.

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