Water at 15°C (p = 999.1 kg/m3, cp 4.18 kJ/kg.K and u = 1.138E-3 kg/m. , k = 0.631 W/m.°C) is flowing steadily in a 4.3-cm-diameter, 9.9- m-length horizontal pipe made of stainless steel at a rate of 1.9 %3D %3D kg/min, the outer surface is

Water at 15°C (p = 999.1 kg/m3, cp 4.18 kJ/kg.K and u = 1.138E-3 kg/m. , k = 0.631 W/m.°C) is flowing steadily in a 4.3-cm-diameter, 9.9- m-length horizontal pipe made of stainless steel at a rate of 1.9 %3D %3D kg/min, the outer surface is

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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Q=2000J Tout=? V(m/s) D=0.1m air Air at (2.95x10^2) K is entering in a circular pipe at 101325 Pa as shown in Figure. The velocity of the air at the pipe entrance is (1.000x10^0) m/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet temperature if 2000 J of heat is added to the pipe. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer
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Local Nusselt number for fully developed (hydrodynamically and thermally) turbulent flow in a smooth circular tube is defined by Nup-hD/kr, where h, D, and ke are the convective heat transfer coefficient, tube diameter, and fluid thermal conductivity, respectively. The friction factor for the smooth circular tube is given by the Blasius correlation, f-0.316Rep. The Reynolds number is defined by Ren-pviD/, where pr, vi, and ur are the fluid density, fluid velocity, and fluid viscosity, respectively. The Blasius correlation is applicable to Rep<2×10¹. Considering the analogy between velocity and thermal boundary layers and using the Blasius correlation, express the local Nusselt number using Reynolds and Prandtl numbers in the form of Nup-AxRepxPr. The Prandtl number is defined by Pr-wa, where and are the fluid kinematic viscosity and fluid thermal diffusivity, respectively. Note that the local Nusselt number formula should be applicable to Rep<2x10 and 0.6
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Q=2000J Tout=? V(m/s) D=0.1m air Air at (2.95x10^2) K is entering in a circular pipe at 101325 Pa as shown in Figure. The velocity of the air at the pipe entrance is (1.5000x10^0) m/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 100O J/kg-K. Find the outlet temperature if 2000 J of heat is added to the pipe. Answer should be in 'K' with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Activate Windows Go to Settings to activat (? 9°C ENG 2020
Water at 15°C (p = 999.1 kg/m3, cp = 4.18 kJ/kg.K and u = 1.138E-3 kg/m.s k = 0.631 W/m.°C) is flowing steadily in a 4.3-cm-diameter, 9.9- m-length horizontal pipe made of stainless steel at a rate of 1.9 kg/min, the outer surface is subjected, to a uniform heat flux of 6.2 kW/m". Assume fully developed flow. What is the pressure drop in the pipe "in Pascals"? Select one: А. 4.98 B. 5.62 С. 4.26 D. 3.53 O E. 6.26
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