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¡Hot water at 50°C is routed from one building in which 4. it is generated to an adjoining building in which it is used for space heating. Transfer between the buildings 192 occurs in a steel pipe (k = 60 W/m K) of 100-mm 20outside diameter and 8-mm wall thickness. During the winter, representative environmental conditions involve air at T = -5°C and V = 3 m/s in cross flow odmover the pipe. to instrub 04 (a) If the cost of producing the hot water is $0.10 per kW h, what is the representative daily cost of heat loss from an uninsulated pipe to the air per meter of pipe length? The convection resistance associated with water flow in the pipe may be neglected. (b) Determine the savings associated with application of a 10-mm-thick coating of urethane insulation (k = 0.026 W/m K) to the outer surface of the pipe. bas 0

¡Hot water at 50°C is routed from one building in which 4. it is generated to an adjoining building in which it is used for space heating. Transfer between the buildings 192 occurs in a steel pipe (k = 60 W/m K) of 100-mm 20outside diameter and 8-mm wall thickness. During the winter, representative environmental conditions involve air at T = -5°C and V = 3 m/s in cross flow odmover the pipe. to instrub 04 (a) If the cost of producing the hot water is $0.10 per kW h, what is the representative daily cost of heat loss from an uninsulated pipe to the air per meter of pipe length? The convection resistance associated with water flow in the pipe may be neglected. (b) Determine the savings associated with application of a 10-mm-thick coating of urethane insulation (k = 0.026 W/m K) to the outer surface of the pipe. bas 0

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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¡Hot water at 50°C is routed from one building in which 4. it is generated to an adjoining building in which it is used for space heating. Transfer between the buildings 192 occurs in a steel pipe (k = 60 W/m K) of 100-mm 20outside diameter and 8-mm wall thickness. During the winter, representative environmental conditions involve air at T = -5°C and V = 3 m/s in cross flow odmover the pipe. to instrub 04 (a) If the cost of producing the hot water is $0.10 per kW h, what is the representative daily cost of heat loss from an uninsulated pipe to the air per meter of pipe length? The convection resistance associated with water flow in the pipe may be neglected. (b) Determine the savings associated with application of a 10-mm-thick coating of urethane insulation (k = 0.026 W/m K) to the outer surface of the pipe. bas 0
Transcribed Image Text:¡Hot water at 50°C is routed from one building in which 4. it is generated to an adjoining building in which it is used for space heating. Transfer between the buildings 192 occurs in a steel pipe (k = 60 W/m K) of 100-mm 20outside diameter and 8-mm wall thickness. During the winter, representative environmental conditions involve air at T = -5°C and V = 3 m/s in cross flow odmover the pipe. to instrub 04 (a) If the cost of producing the hot water is $0.10 per kW h, what is the representative daily cost of heat loss from an uninsulated pipe to the air per meter of pipe length? The convection resistance associated with water flow in the pipe may be neglected. (b) Determine the savings associated with application of a 10-mm-thick coating of urethane insulation (k = 0.026 W/m K) to the outer surface of the pipe. bas 0
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