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Experiment 7: Gas Turbine ( Brayton Cycle Experiment). Brayton Cycle. A thermodynamic cycle that describes the workings of the gas turbine engine 1-2 Isentropic compression 2-3 Isobaric heat addition 3-4 Isentropic expansion 4-1 Isobaric heat rejection. Gas Turbine Engine.
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Experiment 7:Gas Turbine(Brayton Cycle Experiment) PROF. ALVARADO
Brayton Cycle A thermodynamic cycle that describes the workings of the gas turbine engine 1-2 Isentropic compression 2-3 Isobaric heat addition 3-4 Isentropic expansion 4-1 Isobaric heat rejection PROF. ALVARADO
Gas Turbine Engine PROF. ALVARADO
Parts Name PROF. ALVARADO
Engine Sensor Locations PROF. ALVARADO
Software Control Panel By pressing ”Log data to file”, you’ll be able to save data to excel file. But in the excel file, Pressure and Temperature at 3 and 4 are inversed. Pressure shown here are gage pressure PROF. ALVARADO
Data Analysis 1. Plot the following diagrams: • Compressor Inlet(P1)/Outlet Pressure (P2) vs. Time • Compressor Inlet(T1)/Outlet Temperature(T2) vs. Time • Turbine Inlet(P4)/Outlet Pressure(P3) vs. Time • Turbine Inlet(T4)/Outlet Temperature(T3) vs. Time • RPM vs. Time PROF. ALVARADO
Data Analysis 2. Find T1-T4 and P1-P4 under peak RPM. 3. For the analysis point chosen in #2, find the Specific Enthalpy at each Cycle Point(Using air tables): h1, h2, h4, h3. PROF. ALVARADO
Data Analysis 4.Determine specific work and specific heat transfer: PROF. ALVARADO
Data Analysis 5.Determine the efficiency PROF. ALVARADO
Data Analysis 6. Determine the power of the system PROF. ALVARADO
Gas Turbine Engine Video • http://www.youtube.com/v/kw6nIo5LKqE?autoplay=1&rel=0 PROF. ALVARADO