A jacketted-agitated vessel, fitted with a turbine agitator, is used for heating a water stream from 10°C to 54°C. The average heat transfer coefficient for water at the vessel's inner-wall can be estimated from Nu = 0,76Re2/3Pr1/3, Saturated steam at 100°C condenses in the jacket, for which the average heat transfer coefficient in kW /m2.K is ho = 13.1(T,- Tw)-0.25, The vessel dimensions are D, = 0.6 m, H = 0.6 m and Da= 0.2 m. The agitator speed is 60 rpm. Calculate the mass rate of water that can be heated in this agitated vessel steadily. %3D

Question
A jacketted-agitated vessel, fitted with a turbine agitator, is used for heating a water
stream from 10°C to 54°C. The average heat transfer coefficient for water at the
vessel's inner-wall can be estimated from Nu = 0,76Re2/3Pr1/3, Saturated steam at
100°C condenses in the jacket, for which the average heat transfer coefficient in
kW /m2.K is ho = 13.1(T,- Tw)-0.25, The vessel dimensions are D, = 0.6 m, H = 0.6
m and Da= 0.2 m. The agitator speed is 60 rpm. Calculate the mass rate of water
that can be heated in this agitated vessel steadily.
%3D

Image Transcription

A jacketted-agitated vessel, fitted with a turbine agitator, is used for heating a water stream from 10°C to 54°C. The average heat transfer coefficient for water at the vessel's inner-wall can be estimated from Nu = 0,76Re2/3Pr1/3, Saturated steam at 100°C condenses in the jacket, for which the average heat transfer coefficient in kW /m2.K is ho = 13.1(T,- Tw)-0.25, The vessel dimensions are D, = 0.6 m, H = 0.6 m and Da= 0.2 m. The agitator speed is 60 rpm. Calculate the mass rate of water that can be heated in this agitated vessel steadily. %3D

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