study of stirling engine me270 zhiyu gao. introduction the stirling engine uses the temperature...
DESCRIPTION
How it works Source:TRANSCRIPT
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Study of Stirling Engine
ME270Zhiyu Gao
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IntroductionThe Stirling engine uses the temperature difference between its hot end and cold end to establish a cycle of a fixed mass of gas expanding and contracting within the engine, thus converting thermal energy into mechanical power.
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How it works Source: http://www.wikipedia.org
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Schematic
Schematic of Stirling Engine
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Bond Graph
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Differential Equations e1 = SE1 e2 = e5 e3=e5 e4=SE4 e5=Q5/C5+Q6/C5x6+Q8/C5x8+Q10/C5x10 e6=Q5/C6x5+Q6/C6+Q8/C6x8+Q10/C6x10 e7=SE7 e8=Q5/C8x5+Q6/C8x6+Q8/C8+Q10/C8x10 e9=e8 e10=Q5/C10x5+Q6/C10x6+Q8/C10x8+Q10/C10 e11=e10 e12=e11/T11x12 e13=e12 e14=e13/T13x14 e15=e14-e16 e16=f16*R16
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Differential Equations f1=e1/R1+e2/R1x2 f2=e1/R2x1+e2/R2 f3=e3/R3+e4/R3x4 f4=e3/R4x3+e4/R4 f5=f2-f3 f6=e6/R6+e7/R6x7+e9/R6x9 f7=e6/R7x6+e7/R7+e9/R7x9 f8=f9 f9=e6/R9x6+e7/R9x7+e9/R9 f10=f11 f11=f12/T11x12 f12=f13 f13=f14/T13x14 f14=f15 f15=P15/I15 f16=f15
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State Space Equations dQ5=SE1/R2x1+Q5/C5/R2+Q6/C5x6/R2+Q8/C5x8/R2+Q10/
C5x10/R2-Q5/C5/R3-Q6/C5x6/R3-Q8/C5x8/R3-Q10/C5x10/R3-SE4/R3x4
dQ6=Q5/C6x5/R6+Q6/C6/R6+Q8/C6x8/R6+Q10/C6x10/R6+SE7/R6x7+Q5/C8x5/R6x9+Q6/C8x6/R6x9+Q8/C8/R6x9+Q10/C8x10/R6x9
dQ8=Q5/C6x5/R9x6+Q6/C6/R9x6+Q8/C6x8/R9x6+Q10/C6x10/R9x6+SE7/R9x7+Q5/C8x5/R9+Q6/C8x6/R9+Q8/C8/R9+Q10/C8x10/R9
dQ10=P15/I15/T13x14/T11x12 dP15=Q5/C10x5/T11x12/T13x14+Q6/C10x6/T11x12/
T13x14+Q8/C10x8/T11x12/T13x14+Q10/C10/T11x12/T13x14-P15/I15*R16
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Block Diagram Q5
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Block Diagram Q6
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Block Diagram Q8
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Block Diagram Q10
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Block Diagram P15
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Simplified Bond Graph
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Transfer Function Piston to Flywheel 8000000 1 ------- * ------------------------- 19 (100 s + 1) cos(P6)
P6 is the rotated angle of the flywheel
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Expected Result
Flywheel speed VS Time