Problem

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State the formula giving flowrate

1a / state the formula giving flowrate (qv) in terms of valve flow coefficient, pressure drop across the valve and relative density of fluid. State the units of the variables in the formula. B/ A valve having a flow coefficient (Kv) of 65 operates with oil of relative density 0.85 and a pressure drop of 1.4 bar across the valve. Calculate the flowrate of the oil.

A piston-cylinder device contains 0.8kg of steam at 300 degrees C and 1 MPa

A piston-cylinder device contains 0.8kg of steam at 300 degrees C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. (a) Show the process on a T-v diagram. (b) Find the final temperature (c) Determine the volume change.

A piston-cylinder device initially contains 50L of liquid water at 40 degrees C and 200kPa.

A piston-cylinder device initially contains 50L of liquid water at 40 degrees C and 200kPa. Heat is transferred to the water at constant pressure until entire liquid is vaporized. (a) What is the mass of the water? (b) What is the final temperature? (c) Determine total enthalpy change. (d) Show process on a T-v diagram with respect to saturation lines.