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skittlebrew
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A brass piston of diameter 25 cm at 20 degrees C must be able to function at 150 degrees C.
In order to do so it must fit inside a steel cylidrical chamber. What must the minimum initial diameter of the cylinder be so that the piston never rubs against it.
alpha=2x10^-5 for brass
alpha=1.2x10^-5 for steel
dT=130 degrees C
dL=alpha*L0*dT
dV=beta*V0*dT
I don't know whether this is Volume or linear thermal expansion. I think it is volume but there is no given value for length of the piston or cylinder so initial volume and delta V are unknown.
In order to do so it must fit inside a steel cylidrical chamber. What must the minimum initial diameter of the cylinder be so that the piston never rubs against it.
alpha=2x10^-5 for brass
alpha=1.2x10^-5 for steel
dT=130 degrees C
dL=alpha*L0*dT
dV=beta*V0*dT
I don't know whether this is Volume or linear thermal expansion. I think it is volume but there is no given value for length of the piston or cylinder so initial volume and delta V are unknown.
