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Pressurized water is often available at elevated temperatures and may be u space heating or industrial process applications. In such cases, it is customar a tube bank in which the water is passed through the tubes, while air is pa cross flow over the tubes. Consider a staggered arrangement for which t outside diameter is 16.4 mm and the longitudinal and transverse pitches are 3 31.3 mm. There are seven rows of tubes in the airflow direction and eight tu row. Under typical operating conditions, the cylinder surface temperature is while the air upstream temperature and velocity are 150C and 6 m/s, respe Determine the rate of heat transfer per unit length of tubes.

Pressurized water is often available at elevated temperatures and may be u space heating or industrial process applications. In such cases, it is customar a tube bank in which the water is passed through the tubes, while air is pa cross flow over the tubes. Consider a staggered arrangement for which t outside diameter is 16.4 mm and the longitudinal and transverse pitches are 3 31.3 mm. There are seven rows of tubes in the airflow direction and eight tu row. Under typical operating conditions, the cylinder surface temperature is while the air upstream temperature and velocity are 150C and 6 m/s, respe Determine the rate of heat transfer per unit length of tubes.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Heat transfer Home work Pressurized water is often available at elevated temperatures and may be used for space heating or industrial process applications. In such cases, it is customary to use a tube bank in which the water is passed through the tubes, while air is passed in cross flow over the tubes. Consider a staggered arrangement for which the tube outside diameter is 16.4 mm and the longitudinal and transverse pitches are 34.3 and 31.3 mm. There are seven rows of tubes in the airflow direction and eight tubes per row. Under typical operating conditions, the cylinder surface temperature is 70 oC, while the air upstream temperature and velocity are 150C and 6 m/s, respectively. Determine the rate of heat transfer per unit length of tubes. Air properties at assumed mean temperature are: p= 1.217 kg /m3 k = 0.0205 W/m2 .k Pr 0.710 Prs@ Ts 0.705 u =0.18036 x 10-4 N.s/m2 Cp 1.006 kJ/kg K pi@inlet temp 1.225 kg/m3
Transcribed Image Text:Heat transfer Home work Pressurized water is often available at elevated temperatures and may be used for space heating or industrial process applications. In such cases, it is customary to use a tube bank in which the water is passed through the tubes, while air is passed in cross flow over the tubes. Consider a staggered arrangement for which the tube outside diameter is 16.4 mm and the longitudinal and transverse pitches are 34.3 and 31.3 mm. There are seven rows of tubes in the airflow direction and eight tubes per row. Under typical operating conditions, the cylinder surface temperature is 70 oC, while the air upstream temperature and velocity are 150C and 6 m/s, respectively. Determine the rate of heat transfer per unit length of tubes. Air properties at assumed mean temperature are: p= 1.217 kg /m3 k = 0.0205 W/m2 .k Pr 0.710 Prs@ Ts 0.705 u =0.18036 x 10-4 N.s/m2 Cp 1.006 kJ/kg K pi@inlet temp 1.225 kg/m3
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