Fundamentals of Heat and Mass Transfer
7th Edition
ISBN: 9780470501979
Author: Frank P. Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S. Lavine
Publisher: Wiley, John & Sons, Incorporated
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 10, Problem 10.36P
(a)
To determine
Surface heat flux,
(b)
To determine
To plot:The heat flux as function of surface temperature on log-log coordinates for emissivities 0.1, 0.25 and 0.95. Also, the percentage contribution of radiation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
1. Two large plates are maintained at a temperature of 900 K and 500 K respectively. Each plate has area of 6°. Compare the net heat exchange between the plates for the following cases. () Both plates are black (i) Plates have an emissivity of 0.5 Given: T, =900 K T, =500 K A=6m’ To find: () (Qi2)s: Both plates are black
An airtight freezer is filled with air at 298 K and 1 atm. The thermostat is set so that the air is cooled to a temperature of 255 K.
Calculate the ∆S for an isobaric and isochoric process.
Please help me with the problem shown in the figure thanks
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
- At a certain location during the winter, the average air temperature is 10 degrees Celsius and the net radiation is 40 W/m^2 and during the summer the net radiation is 200 W/m^2 and the temperature is 25 degrees Celsius. Compute the evaporation rates using the PRiestley-Taylor Methodarrow_forwardAmmonia is to be removed from a 10 per cent ammonia-air mixture by countercurrent scrubbing with water in a packed tower at 293 K so that 99 per cent of the ammonia is removed when working at a total pressure of 101.3 kN/m². If the gas rate is 0.95 kg/m?s 155 of tower cross-section and the liquid rate is 0.65 kg/m²s, what is the necessary height of the tower if the absorption coefficient Kga = 0.001 kmol/m³s (kN/m²) partial pressure difference. The equilibrium data are: Concentration (kmol NH3/kmol water) Partial pressure NH3 (kN/m²) 0.021 0.031 0.042 0.053 0.079 0.106 0.150 1.6 2.4 3.3 4.2 6.7 9.3 15.2arrow_forwardExplain the concept of heat transfer, and spontaneity and probability base on the increasing temperature of gas molecules in the chamber.arrow_forward
- In boiling water at 1 atm pressure outside a stainless-steel tube with a surface temperature of 410F, the heat-transfer coefficient h in the absence of radiation is 32 Btu/h*ft^2*F. If the emissivity of the stainless steel is 0.8, will radiation significantly augment the rate of boiling (e.g., by more than 5 percent)? Assume that the vapor film is transparent to radiation and the boiling liquid is opaque.arrow_forward1. Two large plates are maintained at a temperature of 900 K and 500 K respectively. Each plate has area of 6°. Compare the net heat exchange between the plates for the following cases. (i) Both plates are black (ii) Plates have an emissivity of 0.5 Given: T =900 K T, =500 K A=6m’ To find: (i) (Qu)u Plates have an emissivity of €= 0.5arrow_forwardMATLAB PROBLEMarrow_forward
- If the air temperature at 18:00h is 8 C, and the air adjacent to the surface has a relative humidity of 70%, at what time will condensation occur if the evening cooling rate is 1 C/hour? Will the condensation be in the form of dew or frost?arrow_forwardA distance was measured with an electronic infrared device, during which the influential weather elements prevailing at the time of measurement were measured at The ends of the measurement line were as follows: temperature at the beginning of the line = 26°C; atmospheric pressure at the beginning of the line 680mb; end of line temperature = 32°C; Atmospheric pressure at the end of the line is 670mb. Calculate the amount of correction to be added to the measured distance, given that the length of the carrier wave is The measurement used is 915nm = m Note: - The correction is calculated from the following relationship: 273 N,(ppnm) = (n, - 1)x10* = (n, - 1X X)x10; (n,-1)x10 = 287.604 +- 273+t760 1.6288 0.0136 +-arrow_forwardWhich of the following properties are not desirable for a binary fluid? Less freezing temperature High critical temperature Less latent heat of vaporization Less specific heat capacityarrow_forward
- A wood stove is used to heat a single room. The stove is cylindrical in shape, with a diameter of D = 0.400 m and a length of L = 0.500 m, and operates at a temperature of T, = 200 °C. (a) If the temperature of the room is T, = 20°C, determine the amount of radiant energy delivered to the room by the stove each second if the emissivity of the stove is e = 0.920. (b) By definition, the R-value of a conducting slab is given by Atot(Th – To) Poond R = where Atot is the total surface area, Pcond is the power loss by conduction through the slab, Th and Te are the temperatures on the hotter and cooler sides of the slab. If the room has a square shape with walls of height H = 2.40 m and width W = 7.60 m, determine the R-value of the walls and ceiling required to maintain the room temperature at T = 20°C if the outside temperature is T, = 0°C. Note that we are ignoring any heat conveyed by the stove via convection and any energy lost through the walls and windows via convection or radiation.arrow_forwardQ1. A solar collector consists of a horizontal copper tube of outer diameter 5 cm enclosed in a concentric thin glass tube of diameter 9 cm. Water is heated as it flows through the tube, and the annular space between the copper and the glass tubes is filled with air at 1 atm pressure. The emissivities of the tube surface and the glass cover are 0.85 and 0.9, respectively. During a clear day, the temperatures of the tube surface and the glass cover are measured to be 60°C and 40°C, respectively. Determine the rate of heat loss from the collector by natural convection and radiation per meter length of the tube.arrow_forwardThe hot water coming out of a hydrothermal vent is sometimes called vent fluid. Why would you and I find these vent fluids to be an unpleasant thing to be exposed to? a They are some of the coldest fluids on Earth, being much colder than the normal freezing point of water. b They can be up to 400 degrees Celsius, and contain dissolved compounds like hydrogen sulfide, carbon dioxide, and methane. c The vent fluids are actually an exotic type of magma, made of silicate minerals. d They are actually ultra-pure water, with nothing at all dissolved in them; so pure that even simple cells will die due to the lack of nutrients in the fluids.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
First Law of Thermodynamics, Basic Introduction - Internal Energy, Heat and Work - Chemistry; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=NyOYW07-L5g;License: Standard youtube license