. Oil enters a 1.25-cm diameter,3-m long tube at 38°C. The tube wall is maintained at 66°C, andflow velocity is 0.3 m/s. What is the total heat transfer to the oil and oil exit temperature? Assumean exit temperature of 50°C.Temperature (°C)p(kg/m³)u (kg/m sec)Cp J/hg °C)k(W/m °C)0.2100.07250.0320400.144867.05864.0419646020470.14080852.0221310.138

Answered: Image /qna-images/answer/2da3342c-a184-40f5-b322-a7e6fdbc435c.jpg

Answered: . Oil enters a 1.25-cm diameter,3-m…

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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Water flows at a rate of 0.1 kg/s in a tube with a diameter of 250 mm. The tube is heated uniformly at a rate of 135 kW/m2. Find the wall temperature at a location where Tsat = 180 C and x = 25%. [Ans.: Ts = 188 C]
What is the Reynolds number of a fluid flowing in a tube with an inside diameter of 1 inches? The viscocity is 1.353 x 10^ -5 lb/ft-s and the mass flow rate is 79 lb/h.Correct Answer: 24,780.96 ± 1%
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H.W5) A Figure illustrates the tube-flow system. The heat transfer under developed flow conditions when the flow remains laminar. The wall temperature is Tw, the center of the tube temperature is Te the radius of the tube is r., and the velocity at the center of the tube is uo. The velocity distribution equation is: =1 - ио Prove that: 1 aT uor, T- T= а дх 4 Start the solution of the equation : P(2ar drjuc,T 1 a aT 1 әт %3D ur дr ar a dx
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* Hot air enters a sheet metal đuct located in a basement. Determine the exit temperature and the rate of heat loss. Taking k 0.02735 W/m. C, v= 1.797x10 m'/s. Pr 0.7228, C-1007 J/kg.C ,pD MSc. Rasha Nasser 106 1.092 kg/m' H= 2.325 kg/m.s and e = 0.3 Ans: 45.1 °C, 2622 W Air dust 20 cm - 20 em Air L-12 m
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