Water flows in a 3.5-cm-diameter pipe so that the Reynolds number based on diameter is 2000 (laminar flow is assumed). The average bulk temperature is 10°C. What would the heat transfer coefficient be in W/m2.°C for such a system if the tube wall was subjected to a constant heat flux and the velocity and temperature profiles were completely developed? Evaluate properties at bulk temperature. Question 8Water flows in a 3.5-cm-diameter pipe so that the Reynolds number based on diameter is 2000 (laminar flow is assumed). The average bulk temperature is 10°C. What would theheat transfer coefficient be in W/m²-°C for such a system if the tube wall was subjected to a constant heat flux and the velocity and temperature profiles were completelydeveloped? Evaluate properties at bulk temperature.A 73B 83с 110D) 93

Answered: Image /qna-images/answer/1d17a1f3-a875-498b-8948-3b9999f39793.jpg

Water flows in a 3.5-cm-diameter pipe so that the Reynolds number based on diameter is 2000 (laminar flow is assumed). The average bulk temperature is 10°C. What would the heat transfer coefficient be in W/m2.°C for such a system if the tube wall was subjected to a constant heat flux and the velocity and temperature profiles were completely developed? Evaluate properties at bulk temperature.

Water flows in a 3.5-cm-diameter pipe so that the Reynolds number based on diameter is 2000 (laminar flow is assumed). The average bulk temperature is 10°C. What would the heat transfer coefficient be in W/m2.°C for such a system if the tube wall was subjected to a constant heat flux and the velocity and temperature profiles were completely developed? Evaluate properties at bulk temperature.

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 7.34P

See similar textbooks

Similar questions

Select the letter of the correct statement. Write the answer with calculations, drawing, rules or explanation 2-) A scientist suggests the following correlation be used for square tubes in a liquid cross-flow situation (Nu = 0.102 Re0.675 Ppl/3). Water (k = 0.61 W/m.K, Pr= 6) flows across a 1-cmsquare tube with a Reynolds number of 10,000. The convection heat transfer coefficient is:(A-) 5.7 kW/m?.K(B-) 8.3 kW/m?.K(C- ) 11.2 kW/m?.K(D-) 18.1 kW/m?.K.
Water going into a pipe with a tempeture of T1 and going out T2 . ambient tempeture is T0. flow rate q. Develop an expression for T2 ( based on heat transfer) Length of the pipe Lh0 - convective heat transfer coefficient of the airhW -convective heat transfer coefficient of the waterk- pipe thermal conductivity (W/m·K)d – pipe diameter Use any other varilable that you need and can be found online easily .
1. Heated air at 1 atm and 35°C is to be transported in a 150-m-long circular plastic duct at a rate of 0.35 m³/s (Fig. 1). If the head loss in the pipe is not to exceed 20 m, using the Colebrook equation and consulting with the FE Reference Handbook and appropriate table(s) for equations and properties. Write a Matlab code to determine the i. ii. iii. iv. minimum diameter of the duct, the friction factor, average flow velocity and Reynolds number of the flow 0.35 m³/s air D -150 m Fig 1
The rate of heat transfer through a fluid is much higher by conduction than it is by convection. Select one: True False Heat transfer in solids is always due to conduction Select one: True False
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]
A tube with 45 meters long, and a diameter of 1.8 meters and 2.3 meters, inlet and outlet respectively. Water is flowing inside the tube. What is the rate of change of the velocity with respect to its length when the inlet has a velocity of 2100 meters/min? *Include the units on the answer. If answer is submitted without a solution, it will not be considered.
. 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
Describe the process of internal flow convection heat transfer in an annular tubeconcentric and draw
A tube with 45 meters long, and a diameter of 1.8 meters and 2.3 meters, inlet and outlet respectively. Water is flowing inside the tube. What is the rate of change of the velocity with respect to its length when the inlet has a velocity of 2100 meters/min?Include the ff:correct unitscomplete solution
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%
Еxample 1.3 The pressure drop over a 30-m length of 1-cm-diameter horizontal pipe transporting water at 20°C is measured to be 2kPa. A laminar flow is assumed. Determine (a) the maximum velocity in the pipe, (b) the Reynolds number, (c) the wall shear stress, and (d) the friction factor. Solution to be worked in class Example 1.4 Consider a constant diameter pipe with oil flowing through it. SG of the oil =0.85, kinematic viscosity = 6X10“ m²/s, diameter = 15cm and discharge = 0.02 m/s. The center of the pipeline at the exit is 2m above that at the entry to the pipeline. Find the head loss in 100 m length of pipe and the pressure drop at the exit of the pipe.
Flow Characteristics( Entrance Effect) Why was there some disagrement between the actual Pitot tube velocity profile and the power law velocity profile?