It is proposed that a 1,000-MW electric power plant be built with steam as the working fluid with the condenser to be cooled wit
h river water. The maximum steam temperature is 550o C, and the pressure in the condenser is 10 kPa. The river, which is about 60 m wide and 8 m deep, has an average velocity of 10 m/min. Estimate the temperature rise of the river downstream from the power plant, in o C.
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Answer:
The value of critical length = 3.46 mm
The value of volume of fraction of fibers = 0.43
Explanation:
Given data
= 800 M pa
D = 0.017 mm
L = 2.3 mm
= 5500 M pa
= 18 M pa
= 13.5 M pa
(a) Critical fiber length is given by
Put all the values in above equation we get
mm
This is the value of critical length.
(b).Since this critical length is greater than fiber length Than the volume fraction of fibers is given by
Put all the values in above formula we get
= 0.43
This is the value of volume of fraction of fibers.