Water at 27°C flows with a velocity of 3m/s along a 200mm diameter tube which ismaintained at uniform temperature of 100 °C. What is the local heat flux at x = 4 m fromthe leading edge of the tube? Assume fully developed flow, for water: K=0.655 W/mK,=5.93×10 Ns/m², Pr=3.785Must be handwrittena 596.44kW/m2b 1192.88kW/m2C 492.86kW/m2648.96kW/m²

Answered: Image /qna-images/answer/46d82047-4a08-4b27-a695-45996aacd7ce.jpg

Answered: Water at 27°C flows with a velocity of…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.20P

See similar textbooks

Similar questions

Please don't provide handwritten solution
. Oil enters a 1.25-cm diameter,3-m long tube at 38°C. The tube wall is maintained at 66°C, and flow velocity is 0.3 m/s. What is the total heat transfer to the oil and oil exit temperature? Assume an exit temperature of 50°C. Temperature (°C) p(kg/m³) u (kg/m sec) Cp J/hg °C) k(W/m °C) 0.210 0.0725 0.0320 40 0.144 867.05 864.04 1964 60 2047 0.140 80 852.02 2131 0.138
question is image
Heat transfer Air flows through a smooth thin-walled rectangular duct of height, a= 0.3 m and width, b=1 m. The air is heated by the duct walls at a uniform heat flux of 250 W/m2 . At some location inside the duct, the mean velocity and temperature of air was measured to be um = 0.05 m/s and Tm = 350 K, respectively. (a) What is the hydraulic diameter of the duct? (b) What is the Reynolds number for the flow in the duct? (c) Is the flow laminar or turbulent? (d) Assuming fully developed flow, what is the heat transfer coefficient (h) at this location?
A steam reservoir is covered by a rectangular plate (its length is 1 m and width 2 m). The steam temperature is 95o C, and it is in contact with the plate. Over the outside surface of the plate, water is flowing at a speed of 3 m/sec at a temperature of 25o C. What is the mean Nusselt number over the plate? What is the mean heat transfer convective coefficient over the plate? What is the heat transfer rate to the water?
can i get help with all parts, thanks
SOLVE SIMPLY SO I CAN UNDERSTAND :)FINAL ANSWERS MUST BE ROUND TO 4 DECIMAL PLACES AND BOXED!
Air at 1.7 atm gauge and 15°C enters a horizontal 75-mm steel pipe that is 70 m long. The velocity at the entrance of the pipe is 60 m/s. Assuming isothermal flow, what is the pressure at the discharge end of the line? ANSWER SHOULD BE 1.982 atm
Water at 30 °C enters a pipe of 25 mm in diameter and 1 m in length with a mean velocity of 0.06 m/s. The pipe surface temperature is 50 °C. What is the outlet temperature of water? Assume the fully developed condition. For water: k = 0.6 W/mK, ν = 0.8x10-6 m2/s, ρ = 1000 kg/m3, cp = 4187 J/kgK, Pr = 5
Engine oil enters a circular tube D=10-cm in diameter and L=23-m in length. If the flow rate and inlet temperature of the oil are m=0.4-kg/s and Tm.i =18°C, find the thermal entry length (x,h =?) in the tube? Note: Use the following properties at mean temperature of the engine oil. H=0.50 N.s/m², v = 1.1 × 10-7 m²/s, Pr = 220
Air enters a rectangular duct measuring 30 cm by 40 cm with a velocity of 8.5 m/s and a temperature of 40 degrees Celsius. The flowing air has a thermal conductivity of 0.028 W/m K, kinematic viscosity of 16.95 x 10-6 m2/s and from empirical correlations, the Nusselt number has been approximated to be 425. Find out the convective heat flow coefficient (h). a. 54.71 W/m2 K b. 34.71 W/m2 K C. 44.71 W/m2 K d. 24.71 W/m2 K
Please show all steps, not Ai generated, has been wrong before. I need to understand the process.

SEE MORE QUESTIONS

Recommended textbooks for you

Principles of Heat Transfer (Activate Learning wi…

Mechanical Engineering

ISBN:

9781305387102

Author:

Kreith, Frank; Manglik, Raj M.

Publisher:

Cengage Learning