Saturated steam at 1 atm is condensed on the external surface of a copper tube with an outside diameter 16 mm and tube wall of thickness 0.5 mm. The tube is cooled internally by water with a mass flow rate of 0.06 kg/s, which in turn is raised in temperature from 15 °C to 60 °C as it flows through the tube. Take the heat-transfer coefficient at the condensing side as 10.0 kW/m² K and the isobaric specific heat-capacity of water as 4180 J/kg K. i) Calculate the heat transfer rate to the cooling water. ii) Calculate the length of the tube. iii) Comment on how to enhance heat transfer in this case.
Saturated steam at 1 atm is condensed on the external surface of a copper tube with an outside diameter 16 mm and tube wall of thickness 0.5 mm. The tube is cooled internally by water with a mass flow rate of 0.06 kg/s, which in turn is raised in temperature from 15 °C to 60 °C as it flows through the tube. Take the heat-transfer coefficient at the condensing side as 10.0 kW/m² K and the isobaric specific heat-capacity of water as 4180 J/kg K. i) Calculate the heat transfer rate to the cooling water. ii) Calculate the length of the tube. iii) Comment on how to enhance heat transfer in this case.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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How do i solve this question using Roger & Mayhew steam property tables:
Transcribed Image Text:Saturated steam at 1 atm is condensed on the external surface of a copper tube with
an outside diameter 16 mm and tube wall of thickness 0.5 mm. The tube is cooled
internally by water with a mass flow rate of 0.06 kg/s, which in turn is raised in
temperature from 15 °C to 60 °C as it flows through the tube.
Take the heat-transfer coefficient at the condensing side as 10.0 kW/m² K and the
isobaric specific heat-capacity of water as 4180 J/kg K.
i) Calculate the heat transfer rate to the cooling water.
ii)
Calculate the length of the tube.
iii) Comment on how to enhance heat transfer in this case.
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