# Two Shaft Gas Turbine Lab Report

CCTD101B

THE UNIVERSITY OF TRINIDAD & TOBAGO FOR: MR REAN MAHARAJ March 25, 2012 Authored by: Odia Pollard (55628)

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Contents

AIM ................................................................................................................................................................ 2 METHOD........................................................................................................................................................ 2 PROCEDURE .................................................................................................................................................. 2 LIMITATIONS AND SOURCES OF ERRORS ...................................................................................................... 3 RESULTS ........................................................................................................................................................ 4 CALCULATIONS .............................................................................................................................................. 5 Compressor Theory ................................................................................................................................... 6 I. II. III. I. II. I. II. I. II. III. I. II. III. Compressor Pressure (expansion) Ratio [equation 1] .................................................................. 6 Compressor Power ........................................................................................................................ 6 Compressor Thermal Efficiency ................................................................................................ 7 Combustion Chamber Pressure Loss [equation 7] ........................................................................ 7 Combustion Chamber Thermal Efficiency [equation 8] ................................................................ 8 Turbine Pressure (expansion) Ratio [equation 10] ....................................................................... 8 Turbine Thermal Efficiency [equation13] ..................................................................................... 8 Turbine Power [equation 14] ........................................................................................................ 8 Gas Generator Mechanical Efficiency ........................................................................................... 9 Gas Generator Isentropic Efficiency ....................................................................................... 10 Gas Turbine Pressure Ratio [equation 24] .................................................................................. 10 Gas Turbine Isentropic Efficiency [equation 25] ......................................................................... 10 Gas Turbine Power [equation 26] ........................................................................................... 11

Combustion Chamber Theory ................................................................................................................... 7

The Gas Generator Turbine (Turbine 1) .................................................................................................... 8

The Gas Generator .................................................................................................................................... 8

The Power or ‘Free’ Turbine ................................................................................................................... 10

Overall Power Efficiency of the Two-shaft Turbine ................................................................................ 11 ADDITIONAL INFORMATION ....................................................................................................................... 12...

Cited: Dunn, D. (2010). Applied Thermodyanamics Tutorial 4. Retrieved March 24, 2012, from A Freestudy website: http://www.freestudy.co.uk/thermodynamics/t4201.pdf Kurzuke, J. (n.d.). About: Achieving maximum thermal efficiency with the simple gas turbine. Retrieved March 18, 2012, from A MTU website: http://www.mtu.de/en/technologies/engineering_news/development/Kurzke_Achieving_maxi mum_thermal_efficiency_en.pdf Nave, R. (2012). About: Carnot Cycle. Retrieved March 24, 2012, from A hyperphysics educational site: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/carnot.html Rodriquez, N. (2012, March 24). Student. (O. Pollard, Interviewer)

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APPENDIX

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