Open Access Open Access  Restricted Access Subscription or Fee Access

THERMAL DESIGN & THERMO STRUCTURAL ANALYSIS OF A PARTIAL ADMISSION TURBINE FOR UNDER WATER PROPULSION

SIVA PRASAD KONDAPALLI, Bala Divya Potnuru, Sree Sruthi Kannam, Prasad LSV

Abstract


Underwater propulsion systems are gaining importance in recent years, various air-independent propulsion systems are being used for underwater applications. SCEPS (Stored Chemical Energy Propulsion System) for under water vehicles such as torpedoes use a compact steam turbine in closed loop. An attempt is made to optimize the design parameters for a partial admission impulse steam turbine and to maximize turbine efficiency. Thermo-structural analysis was also carried out in support to the design parameters using ANSYS. The optimized parameters were found to be satisfactory and were within the allowable limits.


Keywords


Turbine; efficiency; partial admission; thermal design

Full Text:

PDF

References


Fridh, J., Bunkute, B., Fakhrai, R., Fransson, T., 2004. “An Experimental Study on Partial Admission in a Two-Stage Axial Air Test Turbine with Numerical Comparisons”, ASME Turbo Expo 2004 conf., GT 2004-537.

Fridh, J., Fransson, T., Andersson, N-E., Magnusson, P., 2006. “Redundant Rotating Measurements in an Axial Cold Flow Test Turbine – Development and Procedure”, XVIII Symposium on Measuring Techniques in Turbo machinery Transonic and Supersonic Flow in Cascades and Turbo machines, September 2006, PAPER No:18 MTT09.

Fridh, J., Wikström, R., Fransson, T., 2007. “Dynamic Features of Partial Admission: Outcomes from Rotating Measurements”, European Conference on Turbo machinery Fluid Dynamics and Thermodynamics, pp. 451-462, March 2007.

Fridh, J., Laumert, B., Fransson, T., 2011. “Forced Response in Axial Turbines under the Influence of Partial Admission”, ASME Turbo Expo2012, Copenhagen, Denmark, GT2012-68303

Srikant B., Parthasarathy G., Ramesh Babu J., Likitha C., 2013. “Coupled Thermal-Structural Analysis of a turbine Rotor using ANSYS for finding out Remant Life”, The International Journal of Science & Technoledge. (ISSN 2321 – 919X)

Couchman. R.S, Robbins K.E., Schofield.P., GE Steam Turbine Design Philosophy and Technology Programs.GE-3705

Robert Khol., Howard Z.H., Warren J., “Effects of Partial Admission on performance of gas turbine”. National Advisory Committee For Aeronautics Technical Note 1807.

Fridh J., 2012“Experimental Investigation of performance Flow interaction and Rotor Forcing in axial Partial admission turbines.” Division of Heat and Power Technology, Department of Energy Technology, Royal Institute of Technology, Stockholm, Sweden. TRITA KRV Report 13/10,ISSN 1100-7990, ISRN KTH/ KRV/11/12-SE, ISBN 978-91-7501-224-7.

Sagar Y., Krishnamurthy B., Satish G., “Finite Element Analysis of Axial Flow Turbine”., International Journal of Innovative Research in Science, Engineering and Technology. Vol. 4, Special Issue 6, May 2015.

Kamlesh B., Rathod. W.S., 2014 “Static and Thermal Analysis of Turbine Blade of Turbocharger”. 2014 IJEDR Volume 2, Issue 2, ISSN: 2321-9939.

Soo-yong Cho., Chong-Hyun Cho., Chaesil Kim.,2006 “Efficiency prediction on a small axial –Type turbine operated with low partial admission rate ”,Proceedings of Asian Joint Conference on Proplusion and power .AJCPP 2006-22072.

Hawley JG., Ashcroft. S.J., Patric. M.A., “Advanced Underwater power system”, Journal of power and energy, 1994 A1.

Macchi, E. and Lozza, G., 1985 “Comparison of Partial vs Full Admission for Small Turbines at Low Specific Speeds”, Conference paper, ASME 85-GT-220, 1985, ISSN 0402-1215.

Bohn, D. and Funke, H., 2003 “Experimental investigations into the nonuniform flow in a 4-stage turbine with special focus on the flow equalization in the first turbine stage”, Proceedings of ASME Turbo Expo 2003 conf., paper No. GT 2003-38547.

Roelke, R.J., 1973 “Turbine Design and Application”, NASA SP-290, A.J. Glassman, Vol.2, Chap. 8

Hans D. Linhardt. "Analysis of Partial Admission Axial Impulse Turbines", ARS Journal, Vol. 31, No. 3 (1961), pp. 297-308.




DOI: https://doi.org/10.37591/jorachv.v5i1.131

Refbacks

  • There are currently no refbacks.