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A viscous liquid is to be pumped between two buildings at a chemical plant in an above-ground pipe that has an OD of 22 cm and is 110 m long. To facilitate pumping, the liquid will be heated to 40° C in order to reduce its viscosity. The liquid flow rate will be 20 kg/s and the specific heat of the liquid is 1300 J/kg K. Determine the temperature drop that the liquid will experience over the length of the pipe under the following worst-case conditions: Ambient air temperature = -10°C Wind speed = 14 m/s Pipe surface temperature = 37°C Ans. 5.4°C.

A viscous liquid is to be pumped between two buildings at a chemical plant in an above-ground pipe that has an OD of 22 cm and is 110 m long. To facilitate pumping, the liquid will be heated to 40° C in order to reduce its viscosity. The liquid flow rate will be 20 kg/s and the specific heat of the liquid is 1300 J/kg K. Determine the temperature drop that the liquid will experience over the length of the pipe under the following worst-case conditions: Ambient air temperature = -10°C Wind speed = 14 m/s Pipe surface temperature = 37°C Ans. 5.4°C.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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(2.35) A viscous liquid is to be pumped between two buildings at a chemical plant in an above-ground pipe that has an OD of 22 cm and is 110 m long. To facilitate pumping, the liquid will be heated to 40° C in order to reduce its viscosity. The liquid flow rate will be 20 kg/s and the specific heat of the liquid is 1300 J/kg K. Determine the temperature drop that the liquid will experience over the length of the pipe under the following worst-case conditions: Ambient air temperature = -10°C Wind speed = 14 m/s Pipe surface temperature = 37°C Ans. 5.4°C.
Transcribed Image Text:(2.35) A viscous liquid is to be pumped between two buildings at a chemical plant in an above-ground pipe that has an OD of 22 cm and is 110 m long. To facilitate pumping, the liquid will be heated to 40° C in order to reduce its viscosity. The liquid flow rate will be 20 kg/s and the specific heat of the liquid is 1300 J/kg K. Determine the temperature drop that the liquid will experience over the length of the pipe under the following worst-case conditions: Ambient air temperature = -10°C Wind speed = 14 m/s Pipe surface temperature = 37°C Ans. 5.4°C.
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