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Chemical Engineering - Chemical Engineering Basics - Discussion

Discussion Forum : Chemical Engineering Basics - Section 1 (Q.No. 37)
Chemical Engineering Basics
37.
In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that
compared to the mass flow rate of cooling water, the rate of condensation of steam is invariably smaller.
maintaining vacuum on tube side is more difficult than that on the shell side.
water velocity can be increased conveniently to increase the overall heat transfer co-efficient because of its lower specific volume compared to steam.
condenser can act as a storage unit for condensed steam.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
RAJ MUSALE said:   6 years ago
The correct answer is option C.

The specific volume of steam is 1.70 m^3/kg while the specific volume of water is 18*10^(-3) m^3/kg. The specific volume of steam is 1,70,000 % more than that of water. so as steam requires more area than water so it should be sent to the shell side.
(1)
Ayush said:   1 decade ago
With increase in velocity heat transfer increases thats why in tube side more increase of velocity we can get and also increase in velocity reynolds number increase. Thus it rises heat transfer coefficient.
(1)
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