A 6-cm diameter pipe is used to deliver hot water to a residence. A 8-m-long horizontal section of the pipe will pass through a large room of ambient temperature 29°C. The flow of hot water inside the pipe will maintain the outer surface temperature of the pipe at 63°C. If the water is flowing at 0.015 kg/s with an inlet temperature of 780C. determine the outlet temperature of the water. The properties of air at the film temperature are as follows: k = 0.027 W/m.C. v = 17.5*10-6 m2/s, alpha= 25*10-6 m2/s Pr 0.704, B= 1/Tf = 0.00313 K-1. Take cp.water34.178 kj/kgK Select one: O a. 82.5 oC O b. 87 oC Oc. 69 oC d. 73.50C

A 6-cm diameter pipe is used to deliver hot water to a residence. A 8-m-long horizontal section of the pipe will pass through a large room of ambient temperature 29°C. The flow of hot water inside the pipe will maintain the outer surface temperature of the pipe at 63°C. If the water is flowing at 0.015 kg/s with an inlet temperature of 780C. determine the outlet temperature of the water. The properties of air at the film temperature are as follows: k = 0.027 W/m.C. v = 17.510-6 m2/s, alpha= 2510-6 m2/s Pr 0.704, B= 1/Tf = 0.00313 K-1. Take cp.water34.178 kj/kgK Select one: O a. 82.5 oC O b. 87 oC Oc. 69 oC d. 73.50C

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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