1. A lead pipe has 2 cm inside diameter, 3 cm outer diameter, length of 130 cm. Liquid water at 4°C flows through the pipe with a bulk velocity of 2.50 km/hr. Air is blown around the outside of the pipe at 20 deg C. The inside wall of the said pipe has a temperature of 8 deg Celsius. Density of liquid water= 999.6509 kg/m³ Cp=4.218 kJ/kgK Viscosity of liquid water= 1.6193x10-3 Pa.s k (thermal conductivity of water) = 0.5742 W/mK Find: Overall heat coefficient (U) based on outside surface area b. Prandtl (Pr) and Reynolds (Re) numbers based on classification of flow а.
1. A lead pipe has 2 cm inside diameter, 3 cm outer diameter, length of 130 cm. Liquid water at 4°C flows through the pipe with a bulk velocity of 2.50 km/hr. Air is blown around the outside of the pipe at 20 deg C. The inside wall of the said pipe has a temperature of 8 deg Celsius. Density of liquid water= 999.6509 kg/m³ Cp=4.218 kJ/kgK Viscosity of liquid water= 1.6193x10-3 Pa.s k (thermal conductivity of water) = 0.5742 W/mK Find: Overall heat coefficient (U) based on outside surface area b. Prandtl (Pr) and Reynolds (Re) numbers based on classification of flow а.
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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![1. A lead pipe has 2 cm inside diameter, 3 cm outer diameter, length of 130 cm. Liquid water at
4°C flows through the pipe with a bulk velocity of 2.50 km/hr. Air is blown around the
outside of the pipe at 20 deg C. The inside wall of the said pipe has a temperature of 8 deg
Celsius.
Density of liquid water= 999.6509 kg/m³
Cp=4.218 kJ/kgK
Viscosity of liquid water= 1.6193x10-3 Pa.s
k (thermal conductivity of water) = 0.5742 W/mK
Find:
Overall heat coefficient (U) based on outside surface area
b. Prandtl (Pr) and Reynolds (Re) numbers based on classification of flow
а.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F84637f93-e2f9-438d-b032-71ce0d58db12%2F8e4cdf04-d8e2-46da-ac9b-840ad7e5cae3%2Fldbcbzg_processed.png&w=3840&q=75)
Transcribed Image Text:1. A lead pipe has 2 cm inside diameter, 3 cm outer diameter, length of 130 cm. Liquid water at
4°C flows through the pipe with a bulk velocity of 2.50 km/hr. Air is blown around the
outside of the pipe at 20 deg C. The inside wall of the said pipe has a temperature of 8 deg
Celsius.
Density of liquid water= 999.6509 kg/m³
Cp=4.218 kJ/kgK
Viscosity of liquid water= 1.6193x10-3 Pa.s
k (thermal conductivity of water) = 0.5742 W/mK
Find:
Overall heat coefficient (U) based on outside surface area
b. Prandtl (Pr) and Reynolds (Re) numbers based on classification of flow
а.
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