c) What is the temperature of the iron heating element at x=30mm (in ∘C)? Use the origin defined in the given diagram.d) At which position x (in mm) does the iron heating element experience its highest temperature?e) In this scenario outlined in this question (constant heat generation under steady-state, 1-D conditions), can the temperature distribution in the iron ever be linear? Yes or No? Justify your reasoning. The heating element of a clothes iron is 30mm thick, and has a thermal conductivity of 40W/mK.You can assume that the iron is at steady state. You are asked to assume that the volumetric heatgeneration rate in the iron is constant (but non-zero) because it is tumed on. Consider a 1-Dscenario of the heat diffusion equation and assume that the iron is one dimensional (its temperaturevaries only in the x direction). The side of the iron at x = 0mm is maintained at a constanttemperature of 200°C and is perfectly insulated. The side of the iron at x = 30mm is in contactwith cool air at a temperature of 20° C and experiences convection. The heat transfer coefficientbetween the side of the iron at = 30mm and ambient air is 40W/m²K. Don't forget to draw a"translated" version of this geometry on your written work submission, with each known conditionand location clearly labeled.30mm

c) What is the temperature of the iron heating element at x=30mm (in ∘C)? Use the origin defined in the given diagram. d) At which position x (in mm) does the iron heating element experience its highest temperature? e) In this scenario outlined in this question (constant heat generation under steady-state, 1-D conditions), can the temperature distribution in the iron ever be linear? Yes or No? Justify your reasoning.

c) What is the temperature of the iron heating element at x=30mm (in ∘C)? Use the origin defined in the given diagram. d) At which position x (in mm) does the iron heating element experience its highest temperature? e) In this scenario outlined in this question (constant heat generation under steady-state, 1-D conditions), can the temperature distribution in the iron ever be linear? Yes or No? Justify your reasoning.

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.7P

See similar textbooks

Similar questions

1.63 Liquid oxygen (LOX) for the space shuttle is stored at 90 K prior to launch in a spherical container 4 m in diameter. To reduce the loss of oxygen, the sphere is insulated with superinsulation developed at the U.S. National Institute of Standards and Technology's Cryogenic Division; the superinsulation has an effective thermal conductivity of 0.00012 W/m K. If the outside temperature is on the average and the LOX has a heat of vaporization of 213 J/g, calculate the thickness of insulation required to keep the LOX evaporation rate below 200 g/h.
3.38 An egg, which for the purposes of this problem is assumed to be a 5-cm-diameter sphere having the thermal properties of water, is initially at a temperature of . It is immersed in boiling water at for 15 min. The heat transfer coefficient from the water to the egg is assumed to be . What is the temperature of the egg center at the end of the cooking period?
A 0.6-cm diameter mild steel rod at 38C is suddenly immersed in a liquid at 93C with hc=110W/m2K. Determine the time required for the rod to warm to 88C.
A small stainless-steel rod 7 mm in diameter was heated so it is at 300 °C. It is quenched in a bath of room temperature water, where it has a heat transfer coefficient of 30 W/m2K. How long will it take to be cool to the touch? Justify your answer and all assumptions. (You will generate a time constant and the Bi for this problem.
The heat diffusion equation provides the temperature distribution for a given conduction application. However, it does not directly provide the heat flow. Choose an option: TrueFalse
Please show all steps not Ai generated they have been wrong and I need to understand whats goin on. A steel sphere (AISI 1010), 100 mm in diameter, is coated with a dielectric material layer of thickness 2 mm and thermal conductivity 0.04 W/m • K. The coated sphere is initially at a uniform temperature of 500°C and is suddenly quenched in a large oil bath for which To = 100°C and h = 3000 W/m • K. Estimate the time required for the coated sphere temperature to reach 150°C. Hint: Neglect the effect of energy storage in the dielectric material, since its thermal capacitance (pcV) is small compared to that of the steel sphere.
What is the heat stored the fluid in a geothermal reservoir 15 km² and 350 m thick with a uniform porosity of 35% if the fluid is single phase liquid water at 270°C?
19) In fabrication process, steel components are formed hot and then quenched in water. Consider 2 m long, 0.2 m diameter steel cylinder (k = 40 W/m.°C, a = 10-5 m² /s), initially at 400 °C, that is suddenly quenched in water at 50 °C. If heat transfer coefficient is 200 W/m². K, calculate the following 20 min min after immersion: a) center temperature, b) surface temperature, c) The heat transferred to the water during the initial 20 min.
An underwater sonar that maps the ocean bathymetry is encapsulated in a sphere with a diameter of 85 mm. During operation, the sonar generates heat at a rate of 300W. What is the sonar surface temperature when it’s located in a water column where the temperature is 15o C and the water current is 1 m/sec? The sonar was pulled out of the water without turning it off, thus, it was still working. The air temperature was 15o C and the air speed was 3 m/sec. What was the sonar surface temperature? Was there any reason for concern?
Solve for this : An engine cover is made from 1 cm thick stainless steel plate (k = 14 W/m K). Air on the inside of the engine cover is heated to 340°C with a heat transfer coefficient of 7 W/m2K. Outside of the engine coverthe ambient air has a temperature of 70°C. If oil was spilled on the outside of the engine cover (ambient side), it could ignite if the surface temperature were to exceed 200°C. In this configuration, would spilled oil ignite? Use calculations to justify your answer. If a 4 mm thermal coating (k = 1.1 W/m K) was applied tothe outside of the engine, what would the outside temperature of the engine cover be reduced to?
A 50 cm x 50 cm copper slab, 6 mm thick at a uniform temperature of 350°C suddenly has its surface temperature lowered to 30°C. Find the time at which the slab temperature becomes 100°C. h = 100 W/m2 °C. Also, find the rate of cooling after 60 seconds.
A 12-by-12 inches ingot iron casting 60-in high is stripped from its moldwhile its temperature is 1740 °F. If it stands on end on the floor of a largefoundry having wall, floor, and roof temperatures of 80°F, what is the rate ofradiant-heat exchange between the casting and the roof wall, and floorsurfaces?