[b]1. The problemstatement, all variables and given/known data[/b] Water enters

Question

[b]1. The problemstatement, all variables and given/known data[/b]
Water enters the constant 130-mm inside diameter tubes of a boilerat 7 Mpa and 65oC and leaves the tubes at 6 Mpa and4500C with a velocity of 80 m/s. Calculate the velocityat the inlet and the inlet volume flow rate

[b]3. The attempt at asolution[/b]
so i thought i could find mass flow rate at state 2, then use thisto fine velocity at state 1 but i cannot find the specific volumeat state 1

mass flowrate=(1/v2) A V2=20.3538kg/s ( using specificvolume from superheated chart)
massflowrate=(1/v1)A V1 (what chart should i lookat for specific volume)

Explanation / Answer

hi, you should be able to understand the problem youare askning about by following the steps below: first of all let me make it clear that water at 7MPaand 65oC is not a superheated condition. the minimum temperature for superheated condition is276.717oC. so the temperature 65oC might be650oC. At 7MPa and 650oC , specific volumev1 = 0.0584036 m3/kg now substitute the values and you will get youranswers. " I hope this helps. Best of luck with the rest of yourwork."

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