Fundamentals of Heat and Mass Transfer
7th Edition
ISBN: 9780470917855
Author: Bergman, Theodore L./
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 10, Problem 10.13P
(a)
To determine
The surface temperature.
The heat flux at the exposed surface.
(b)
To determine
The surface temperature by applying a boiling correlation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A condenser consists of 5 horizontal pipes of 3 meters length of 1/4 sch40 arranged in 6 rows on top of each other. Cooling water with a heat transfer coefficient of 2000W / m-K flows through the pipes. As the flow rate of water is very high, the water temperature is fixed to 35C. Saturated water vapor at 2 bar pressure condenses outside the pipes. Calculate the condenser capacity in kW.
2. For a saturated dry steam at 1,500 KPa that passes through a 100 mm (OD) steel
pipe with a thickness of 5 mm and a length of 100 meters. The steam line is
insulated with a 50 mm thickness and a thermal conductivity of 0.25 W/m.C. For a
mass flow rate of 600 kg of steam per hour. The surface film conductance of steam
is h = 5,500 W/m?.C, surface film conductance of air is h = 12 W/m?.C , thermal
conductivity of pipe material is k = 153 W/m.C and the ambient air temperature is
-10°C . Determine the following:
a) The quality of steam after passing through the pipe
b) Explain the concepts/principles that were considered and the factors that
affected the condition of the above mentioned items (a & b)
@ 1,500 KPa (tsat = 198.32°C)
kJ
2,792.20-
kg
k]
844.89
kg
kJ
1,947.30-
kg
1
hg
2
hf
hfg
2 (a) A short bronze cylinder of diameter 6 cm and length 12 cm is initially at 40°C and
then plunged into a fluid at 200°C. The temperature at the centre of the cylinder is
measured by a thermocouple to be 150°C after 5 minutes. What is the convective heat
transfer coefficient between the cylinder and the fluid?
The following properties of the bronze cylinder may be used:
Thermal conductivity k = 26 W/m-K, density p = 8800 kg/m², and specific heat c =
420 J/kg-K. State and justify all assumptions made.
Chapter 10 Solutions
Fundamentals of Heat and Mass Transfer
Ch. 10 - Show that, for water at 1-atm pressure with...Ch. 10 - The surface of a horizontal. 7-mm-diameter...Ch. 10 - The role of surface tension in bubble formation...Ch. 10 - Estimate the heat transfer coefficient, h,...Ch. 10 - Prob. 10.5PCh. 10 - Prob. 10.6PCh. 10 - Prob. 10.7PCh. 10 - Prob. 10.8PCh. 10 - Calculate the critical heat flux on a large...Ch. 10 - Prob. 10.11P
Ch. 10 - Prob. 10.12PCh. 10 - Prob. 10.13PCh. 10 - Prob. 10.15PCh. 10 - Prob. 10.16PCh. 10 - Consider a gas-fired boiler in which five coiled,...Ch. 10 - Prob. 10.18PCh. 10 - Prob. 10.19PCh. 10 - Prob. 10.20PCh. 10 - Prob. 10.22PCh. 10 - Prob. 10.24PCh. 10 - Prob. 10.25PCh. 10 - A small copper sphere, initially at a uniform,...Ch. 10 - Prob. 10.28PCh. 10 - A disk-shaped turbine rotor is heat-treated by...Ch. 10 - A steel bar, 20 mm in diameter and 200 mm long,...Ch. 10 - Electrical current passes through a horizontal....Ch. 10 - Consider a horizontal. D=1 -mm-diameter platinum...Ch. 10 - Prob. 10.34PCh. 10 - Prob. 10.35PCh. 10 - Prob. 10.36PCh. 10 - Prob. 10.37PCh. 10 - A polished copper sphere of 10-mm diameter,...Ch. 10 - Prob. 10.39PCh. 10 - Prob. 10.40PCh. 10 - Consider refrigerant R-134a flowing in a smooth,...Ch. 10 - Determine the tube diameter associated with p=1...Ch. 10 - Saturated steam at 0.1 bar condenses with a...Ch. 10 - Prob. 10.45PCh. 10 - Prob. 10.46PCh. 10 - Prob. 10.47PCh. 10 - Prob. 10.48PCh. 10 - Prob. 10.50PCh. 10 - Prob. 10.53PCh. 10 - The condenser of a steam power plant consists of...Ch. 10 - Prob. 10.56PCh. 10 - Prob. 10.61PCh. 10 - Prob. 10.62PCh. 10 - A technique for cooling a multichip module...Ch. 10 - Determine the rate of condensation on a 100-mm...Ch. 10 - Prob. 10.66PCh. 10 - Prob. 10.67PCh. 10 - Prob. 10.70PCh. 10 - Prob. 10.71PCh. 10 - Prob. 10.74PCh. 10 - Prob. 10.75PCh. 10 - A thin-walled cylindrical container of diameter D...
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
- Determine the rate of heat transfer per meter length to a light oil flowing through a 2.5-cm-ID, 60-cm-long copper tube at a velocity of 0.03 m/s. The oil enters the tube at 16C, and the tube is heated by steam condensing on its outer surface at atmospheric pressure with a heat transfer coefficient of 11.3 kW/m K. The properties of the oil at various temperatures are listed in the following table: Temperature, T(C) 15 30 40 65 100 (kg/m3) 912 912 896 880 864 c(kJ/kgK) 1.80 1.84 1.925 2.0 2.135 k(W/mK) 0.133 0.133 0.131 0.129 0.128 (kg/ms) 0.089 0.0414 0.023 0.00786 0.0033 Pr 1204 573 338 122 55arrow_forward"Consider a heat engine with a piston chamber that has a diameter of 30 mm, a cold reservoir at 285 K and hot reservoir at 350 K. It is also equipped with a metal can cylinder that has a volume of 0.0002 m3. What is the total volume of air in the system if the metal can cylinder is in the hot reservoir and the measured pressure and height of the piston are 103850 Pa and 60 mm, respectively?" O 4.24x10-5 m3 O 4.25x10-2 m3 O 2,42x10-4 m3 O 3.70x10-4 m3arrow_forwardIndirect Cooling With Liquid Nitrogen. You are designing a system to cool an insulated silver plate of dimensions 2.00 cm × 2.00 cm × 0.60 cm. One end of a thermally insulated copper wire (diameter D = 2.70 mm and length L = 18.0 cm) is dipped into a vat of liquid nitrogen (T = 77.2 K), and the other end is attached to the bottom of the silver plate.(a) If the silver plate starts at room temperature (65.0 °F), what is the initial rate of heat flow between the plate and the liquid nitrogen reservoir?(b) Assuming the rate of heat flow calculated in part (a), estimate the temperature of the silver plate after 30.0 seconds.arrow_forward
- A piece of chromium steel of length 7.4 cm (density = 8780 kg/m³, K = 50 W/m.K, and Cp = 200 j/kg.K) with mass 1.27 kg, is rolled into a solid cylinder with the same length and heated to a temperature of 600 C and quenched in oi at 36 C. You may take the convective heat rate coefficient between the oil and the cylinder at 280 W/m².K. a) Show that the lumped capacitance system analysis is applicable by calculating the Bi Number b) Find the temperature of the cylinder after 4 min. c) Find the total energy loss during this period. The temperature of the cylinder after 4 min is: The Bi Number is: The total energy loss during this 4 min period is: Choose Choose Choosearrow_forwardQuenching is a rapid cooling process by which many metallic alloys are hardened. Brass (a copper alloy: 70 Cu, 30 Zn) plates that are 4 mm thick are quenched in a water bath at a heat treating plant. If a brass plate is initially at 4500C determine the quench time needed for the plate to attain 900C. The water bath temperature is 800C and has an average convective heat transfer coefficient of 45 W/(m2 K), determine how long the plate has to remain in the oven.arrow_forwardplease answer within 40 minutes please show complete solutions and detailed drawings. show conversions, units, and box in the final answersarrow_forward
- Kindly answer this question, T= 30 degreesarrow_forwardRead the question carefully and give me right solution according to the question Note: Don't copy from other experts solutionarrow_forwardSteam condenses at 100°C on the outer surface of a pipe with a thermal conductivity of 180 J/ms°C. The surface heat transfer coefficient of the water flowing in the pipe is 4000 J/m²s°C, and the heat transfer coefficient created by the steam condensing outside is 10000 J/m²s°C. The length of the pipe is 5 m and the thread diameter is 25 mm. Since the pipe thickness is 1 mm, calculate the total heat transfer coefficient and the rate of heat transfer from the condensed steam to the water at 15 °Carrow_forward
- Parvinbhaiarrow_forwardA bare fuel rod has a diameter of 0.373 in and length of 12 ft. The volumetric heat generation rate for this rod is q′′′ = 10,000 kW/ft3. The heat produced by the rod is removed by water used as the coolant, at 2250 psia and 575 F. Find the heat transfer coefficient between the bare fuel rod and the coolant.The fuel rod surface temperature is 675 Farrow_forwardI need the answer as soon as possiblearrow_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