Design of Helium Cryogenic Turboexpander |
Author(s): |
| Prof. N.V. Bora , L. D. College of Engineering, GTU, Ahmedabad, Gujarat, India; Renu Kushwah, L. D. College of Engineering, GTU, Ahmedabad, Gujarat, India |
Keywords: |
| Cryogenic, turboexpander, mixed flow turbine, flow angle, flow velocity. |
Abstract |
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The expansion turbine constitutes the most critical component of a large number of cryogenic process plants - air separation units, helium and hydrogen liquefiers, and low temperature refrigerators. Present day cryogenic gas turbines are in more popular as they meet the growing need for low pressure cycles. The present study is aimed at the design of helium cryogenic turboexpander of mixed flow impellers with radial entry and axial discharge. To determine the principal dimensions of the turbine wheel, optimum operating speed has been taken from design charts based on Similarity principles. The main dimensions, thermodynamic properties at different states, velocity and angles at entry and exit of the turbine wheel were worked out. A modest attempt has been made to understand, standardise and document the design of cryogenic turboexpanders. |
Other Details |
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Paper ID: IJSRDV1I11049 Published in: Volume : 1, Issue : 11 Publication Date: 01/02/2014 Page(s): 2499-2504 |
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