Quasi Three-Dimensional Design for a Novel Turbo-Vapor Compressor and the Last Stage of a Low-Pressure Steam Turbine

Authors

  • Amin Mobarak Mechanical Power Engineering Department, Faculty of Engineering, Cairo University, Egypt
  • Mostafa Shawky Abdel Moez Mechanical Power Engineering Department, Faculty of Engineering, Cairo University, Egypt
  • Shady Ali Mechanical Power Engineering Department, Faculty of Engineering, Cairo University, Egypt

DOI:

https://doi.org/10.37934/arfmts.85.2.113

Keywords:

Freshwater and electricity production, turbo-vapor compressor, low-pressure steam turbine

Abstract

Turbo-vapor compressors (TVCs) are used to create a vacuum pressure in the evaporator of a novel combined cycle for electricity and freshwater production invented by Amin Mobarak. A novel design conceived of a TVC is introduced to increase the efficiency, allowable mass flow rate and reduce costs and losses. The system consists of a single axial compressor rotor followed by a single axial turbine rotor, which drives the upstream compressor, allowing high flow rates. A quasi-3D design is carried out for the TVC to calculate the flow velocity components and angles and ensure that the turbo-vapor turbine work is equal to the turbo-vapor compressor work. A preliminary design of the low-pressure power turbine (LPT) is done to examine the size and number of stages. The (LPT) size is twice the size of TVC at typical cycle operating conditions. A three-stage design is the most appropriate choice for the number of stages. It satisfies the accelerating relative flow condition at the last stage over a range of flow coefficients. A quasi-3D design is carried out for the LPT's last stage to ensure a multi-stage power turbine's safe design.

Author Biographies

Amin Mobarak, Mechanical Power Engineering Department, Faculty of Engineering, Cairo University, Egypt

amobarak@alwatania-egy.com

Mostafa Shawky Abdel Moez, Mechanical Power Engineering Department, Faculty of Engineering, Cairo University, Egypt

mostafashawky11@gmail.com

Shady Ali, Mechanical Power Engineering Department, Faculty of Engineering, Cairo University, Egypt

shadymohamedali@gmail.com

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Published

2021-08-05

How to Cite

Mobarak, A., Abdel Moez, M. S. ., & Shady Ali. (2021). Quasi Three-Dimensional Design for a Novel Turbo-Vapor Compressor and the Last Stage of a Low-Pressure Steam Turbine. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 85(2), 1–13. https://doi.org/10.37934/arfmts.85.2.113

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