HW1_solution

HW1_solution - HW1 Class1- Following problem + 4.90...

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HW1 Class1- Following problem + 4.90 Consider the piston cylinder assembly shown in the schematic below. The piston is connected through a linear spring to a fixed support, and the area of its cross section is A = 1m 2 . The spring exerts on the piston a force of modulus F s = kx x r ( ) oriented towards the bottom of the scheme, where k=20 N/m, and x r is the rest position of the spring. Consider a process that starts with the gas having pressure P 1 =2 bar and V 1 =1m 3 and ends with the gas volume equal to V 2 =2m 3 . a) Determine the pressure in the final stage, P 2 in bar. b) Convert the pressure to KPa. c) Evaluate the work done by the fluid. GAS x

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Class2- Following problem Determine the maximum theoretical performance (efficiency or C.o.P.) of the following cycles 1. Power cycle with maximum cycle temperature 1000 C and minimum cycle temperature 20 C. 2. Power cycle with maximum cycle temperature 2000 C and minimum cycle temperature 20 C. 3.
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HW1_solution - HW1 Class1- Following problem + 4.90...

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