Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN: 9781305387102
Author: Kreith, Frank; Manglik, Raj M.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 6, Problem 6.3P
Steam at 100 kPa and
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Water with a mass flow rate of 0.002 kg/s at 18oC flows inside a tube while the flow is already developed hydrodynamically. The inner diameter of the tube is 1.5 cm, and the inner pipe wall temperature is maintained uniformly at 125oC. Calculate the required tube length to increase the water temperature to 82oC.
Find the heat transfer rate of water that
enters a tube with a flow rate of 0.015 kg/s
and an inlet temperature of 20°C. The tube,
which has a length of 6 m and a diameter
of 15 mm, has a surface temperature of
30°C. (Use the thermodynamic properties
of water at 300 K)
Air at atmospheric pressure and 27oC is blown across a long 4.0-cm diameter tube at a velocity of20 m/s. Determine the heat transfer rate per unit length. Assume that the temperature of the wall is 60oC.
Chapter 6 Solutions
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 7.43 Liquid sodium is to be heated from 500 K to 600 K by passing it at a flow rate of 5.0 kg/s through a 5-cmID tube whose surface is maintained at 620 K. What length of tube is required?arrow_forwardHarry up plzarrow_forwardAir at atmospheric pressure flowing through a tube of 10 cm diameter at a rate of 0.1 kg/s is to be cooled from 400K to 300K with uniform wall temperature of 250K. Determine the length of the tube. Justify any assumptions that you have made.arrow_forward
- I need the answer as soon as possiblearrow_forwardWater (4.1 L/min) is flowing in a tube "D = 3 cm, L= 5 m" and is to be heated from 15°C to 59.8°C by applying a uniform heat flux on the outer surface of the tube by electric resistance heater. What is the power rating of the ?resistance heater (kW) If turbulent flow use Dituss- Boetler relation Nu= 0.023 Re0.8 .Prn Properties : p = 992.1 kg/m³ , C, = 4179 J/kg.°C, k 0.631 W/m°C, Pr = 4.32, v = 0.658E-6 m²/sarrow_forwardConsider a pipe with a length of 25 m and diameter of 5 cm. The surface temperature of the pipe is constant at 150°C.Oil at 20°C is passing though this pipe with a mass flow rate of 0.5 kg/s. determine (a) the temperature of the oil at the exit and (b) the total heat transfer rate. Note. Report your solution step by step and clearly.arrow_forward
- Water (7.7 L/min) is flowing in a tube "D = 3 cm, L= 5 m" and is to be heated from 15°C to 62.1°C by applying a uniform heat flux on the outer surface of the tube by electric resistance heater. What is the power rating of the resistance heater (kW)? If turbulent flow use Dituss- Boetler relation Nu= 0.023 Re0.8 Pr". Properties : p = 992.1 kg/m³ , C, = 4179 J/kg.°C, k = 0.631 W/m°C, Pr = 4.32, v = 0.658E-6 m²/sarrow_forwardWater (cp=4.182 kJ/kg.K, k=0.6405 W/m.K, Pr=3.57, ν=0.5537x10-6 m2/s, ρ=998 kg/m3) flows through a tube (D=0.5 cm) with an average velocity of 0.2 m/s. The average temperatures of the water at the inlet and outlet cross-sections are 26,03 oC and 86,92 oC, respectively. The uniform heat flux of 0,82 W/cm2 is subjected to the surface of the tube for heating process. Determine the tube length [m].arrow_forwardWater is to be heated from 20 to 60 0C as it flows through a thick-walled tube having inner and outer diameters of 20 mm and 40 mm, respectively. The tube is equipped with an electrical heating which provides uniform heating throughout the surface of the tube at a rate of 20 kW/m2. Assume that steady-state conditions are achieved and the outer surface of the heater is well insulated. (a) For a mass flow rate of 0,15 kg/s, how long must the tube be to achieve the desired outlet temperature? (b) Calculate the inner surface temperature at the tube inlet.arrow_forward
- Engine oil flows at a rate of 0.05 kg/s through a section of a 2.5 cm diameter tube. The oil enters the section at a temperature of 50 C. The tube wall is kept at 20 C, and it can be assumed that the flow through the section is fully developed. The section of the tube is 5 m long. (a) What is the exit temperature of the oil? (b) What is the heat transfer rate from the oil to the tube wall?arrow_forwardAir at p = 1 atm enters a thin-walled (D = 5-mm diameter) long tube (L = 2 m) at an inlet temperature of Tmi = 100°C. A constant heat flux is applied to the air from the tube surface. The air mass flow rate is m = 135 × 106 kg/s. If the tube surface temperature at the exit is T5,0 = 160°C, determine the heat rate entering the tube, in W. Evaluate properties at T = 400 K. 9 = i Warrow_forwardAir at 1 atm and 300 °C is cooled as it flows at a velocity of 5.0 m/s through a tube with a diameter of 2.54 cm. Calculate the heat transfer coefficient if a constant heat flux condition is maintained at the wall and the wall temperature is 20 °C above the temperature along the entire length of the tube. (see attached)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Principles of Heat Transfer (Activate Learning wi...
Mechanical Engineering
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Cengage Learning
Heat Transfer – Conduction, Convection and Radiation; Author: NG Science;https://www.youtube.com/watch?v=Me60Ti0E_rY;License: Standard youtube license