A Study on Performance comparison of two-size Tesla Turbines Application in Organic Rankine Cycle Machine

  • Thawichsri, Kosart ;
  • nilnont, Wanich
  • Received : 2015.07.05
  • Accepted : 2015.11.16
  • Published : 2015.12.31


This paper aims to study and design of Organic Rankine Cycle (ORC) Machine using Isopentane as working fluid expanding through Tesla turbine. The study on ORC machine expanding through Tesla turbine has result on the efficiency of Tesla turbine. In addition, Thermodynamics theory on isentropic efficiency proved to be a successful method for overcoming the difficulties associated with the determination of very low torque at very high angular speed. By using an inexpensive experiment device and a simple method, the angular acceleration method, for measuring output torque and power in a Tesla turbine is able to predict a tendency of output work. The experiments using two Tesla turbine sizes, the first size is 1.6 bigger than the second one. In comparison with the first size, the tesla turbine can produce power output more than 62% of the second size. Further study on the machine can be developed throughout the county due to its low cost and efficiency.


Organic Rankine Cycle;Tesla turbine;high angular speed;inexpensive


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