Cooling water supplied to a heat exchanger flows through 25 mm diameter tubes cach 5 m long arranged in parallel. If the pressure drop over the heat exchanger is not to exceed 8000 N/m², how many tubes must be included for a total flowrate of water of 110 ton/h? Density of water 1000 kg/m'. Viscosity of water 1 mNs/m2. Assume pipes to be smooth-walled. If ten per cent of the tubes became blocked, what would the new pressure drop be? Ans. n 32 tubes, AP-9650 N/m² an increase of 20.

Introduction to Chemical Engineering Thermodynamics
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ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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P.4.16
Cooling water supplied to a heat exchanger flows through 25 mm diameter tubes
cach 5 m long arranged in parallel. If the pressure drop over the heat exchanger is not to
exceed 8000 N/m², how many tubes must be included for a total flowrate of water of 110
ton/h? Density of water 1000 kg/m'. Viscosity of water= 1 mNs/m2. Assume pipes to
be smooth-walled. If ten per cent of the tubes became blocked, what would the new
pressure drop be?
Ans. n 32 tubes, AP-9650 N/m2 an increase of 20,
Transcribed Image Text:P.4.16 Cooling water supplied to a heat exchanger flows through 25 mm diameter tubes cach 5 m long arranged in parallel. If the pressure drop over the heat exchanger is not to exceed 8000 N/m², how many tubes must be included for a total flowrate of water of 110 ton/h? Density of water 1000 kg/m'. Viscosity of water= 1 mNs/m2. Assume pipes to be smooth-walled. If ten per cent of the tubes became blocked, what would the new pressure drop be? Ans. n 32 tubes, AP-9650 N/m2 an increase of 20,
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