A study has been conducted to determine the off-design performance of cryogenic turboexpander. A theoretical model to predict the losses in the components of the turboexpander along the fluid flow path has been developed. The model uses a one-dimensional solution of flow conditions through the turbine along the mean streamline. In this analysis, the changes of fluid and flow properties between different components of turboexpander have been considered. Overall, turbine geometry, pressure ratio, and mass flow rate are input information. The output includes performance and velocity diagram parameters for any number of given speeds over a range of turbine pressure ratio. The procedure allows any arbitrary combination of fluid species, inlet conditions, and expansion ratio since the fluid properties are properly taken care of in the relevant equations. The computational process is illustrated with an example.
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March 2011
Research Papers
Mathematical Analysis for Off-Design Performance of Cryogenic Turboexpander
R. K. Sahoo,
R. K. Sahoo
NIT Rourkela
, Orissa 769008, India
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Sunil K. Sarangi
Sunil K. Sarangi
NIT Rourkela
, Orissa 769008, India
Search for other works by this author on:
Subrata K. Ghosh
R. K. Sahoo
NIT Rourkela
, Orissa 769008, India
Sunil K. Sarangi
NIT Rourkela
, Orissa 769008, IndiaJ. Fluids Eng. Mar 2011, 133(3): 031001 (6 pages)
Published Online: March 10, 2011
Article history
Received:
July 14, 2009
Revised:
March 16, 2010
Online:
March 10, 2011
Published:
March 10, 2011
Citation
Ghosh, S. K., Sahoo, R. K., and Sarangi, S. K. (March 10, 2011). "Mathematical Analysis for Off-Design Performance of Cryogenic Turboexpander." ASME. J. Fluids Eng. March 2011; 133(3): 031001. https://doi.org/10.1115/1.4003661
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