A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200 °C. Conductivity k=133 W/m/K. The rod is in an air environment with Too = 20 °C and h = 30 W/m²/K. What is the temperature of the rod 25, 50, and 100 mm from the casting?

A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200 °C. Conductivity k=133 W/m/K. The rod is in an air environment with Too = 20 °C and h = 30 W/m²/K. What is the temperature of the rod 25, 50, and 100 mm from the casting?

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.22P

See similar textbooks

Related questions

Q: #4 Handle AC can only rotate about the z-axis at point A. A 10 lb force is applied as shown at point…

Q: Show material below deforms when temperature difference across exceeds the threshold of ZTC if the…

A: The threshold temperature difference, The thickness of the material,

Q: 1. Liquid nitrogen of 10 lbm mass is located inside the container under the 350psi pressure at the…

A: The mass of liquid nitrogen is The initial pressure is The initial state is saturated liquiidThe…

Q: 1. The assembly shown here has diameters 5 ft along AB, 3 ft along BC and 1.5 ft along CD. It is…

Q: RB&W11 recommends turn-of-nut from snug fit to preload as follows: 1/3 turn for bolt grips of 1-4…

A: To findthe torque is necessary to establish the desired preload.The turn of the nut.Givenpreload,…

Q: Required information A 20° straight-tooth bevel pinion having 13 teeth and a diametral pitch of 5…

A: Given,A 20° straight-tooth bevel pinion having 13 teeth and a diametral pitch of 5 teeth/in drives a…

Q: Find the vector form of the resultant force, FR.

Q: The figure below shows a parallel piping system that delivers turpentine to a mixing tank, where it…

Q: 8. (a) Define in words and equations (where applicable): i. vapor pressure ii. saturation vapor…

A: i. Vapor pressure:The pressure exerted by vapor in thermodynamic equilibrium with its liquid/solid…

Q: 5.37 Find the horizontal and vertical forces to hold stationary the nozzle shown in Fig. P5.37. The…

Q: assortment of objects of different masses. Des s to test whether momentum is a conserved qu ly what…

A: There are two carts, a force probe connected to a computer, a motion detector, and an assortment of…

Q: Compute the contact stress number for the gear fain pair driven directly by an electrical motor. The…

Q: 2. (03) The splined ends and gears attached to the A992 steel shaft are subjected to the torques…

A: Note:- here, part C). and D). has been asked so, I have answered that two parts here.here for steel…

Q: Determine the force in each member of the space truss given F-3 kN. Use positive to indicate tension…

Q: Engine Type Four cylinder Four stroke Diesel engine, Bore: 0.073m, Stroke: 0.0889m Capacity: 1489cc,…

A: Bore size: D=0.073 mStroke length: L=0.0889 mCapacity=1489 ccPower=36 HP=26.46 KWSpeed=4000…

Q: A brass pipe has an internal diameter of 400mm and a metal thickness of 6mm. A single layer of high…

A: The internal diameter of the brass pipe is The thickness of the brass metal is The outer diameter of…

Q: An engineer measures the flow velocity at the edges of a rectangular control volume (LxH) over a…

Q: The instant shown, bar AB has a constant angular velocity of 6 rad/s clockwise.a) Determine the…

A: Summary:- solved this question using velocity analysis.Explanation:

Q: c) A thin-walled beam has the cross-section shown in Figure 5. If the beam is subjected to a bending…

A: Given:The cross-section of the beam is shown below;

Q: Notes: 1) ‘replace … by an equivalent resultant force and couple moment at point O’ really just…

A: To findreplace, by an equivalent resultant force and couple moment at point O and ‘find the…

Q: Calculate the mass moment of inertia for a rectangular plate for the H-H axis shown in the link. The…

A: mass of the plate: m=8 Kga=5 m , b=1 m

Q: The system shown in Figure 2 is at rest when the lower rope is cut. Determine the speed of the…

Q: calculate the 70 % and 97 % response time values for this instrument.

Q: 5/115 The flexible band F is attached at E to the rotating sector and leads over the guide pulley.…

A: Given Data:Freebody diagram:

Q: What is the size of the beam's cross section

Q: 1.00 1.38 3.38 38 2.00

A: Select the correct statement about the notation circled in green and marked as letter D. Assume all…

Q: handles. Determine the proportionality between the clamping force, R, and the squeezing force F for…

A: Given datadetermine theproportionality between the clamping force R and the sequencing force F

Q: Use the general shaft layout given and determine critical diameters of the shaft based on infinite…

A: The tension .The design factor given is .The notch radius given is .

Q: Problem 4 (Figure B). A mass of 2 kg is projected with a speed of 3 m/s up a plane inclined 20° with…

Q: the direction The piston of the hydraulic cylinder gives pin A a constant velocity v = 3151 shown…

A: The piston speed is (constant)The angle is

Q: Consider a free-body diagram that cuts through D. How many internal forces should be drawn at the…

Q: Air from a reservoir at 20°C and 500 kPa flows through a duct and forms a normal shock downstream of…

A: Given data:The temperature of the air at the reservoir is .The pressure at the reservoir is The area…

Q: At a given instant of time, two pressure waves, each moving at the speed of sound, emitted by a…

A: To findthe Mach number involved.the instantaneous location, I, of the point source.Giventhe radius…

Q: Steam enters the superheaters of a boiler at a pressure of 25 bar and dryness of 0.98 and leaves at…

A: Given:Steam at , state 2, To determine:The heat energy supplied per kg of steam supplied in the…

Q: A pump discharges liquid at the rate of Q against a head of H. If specific weight of the liquid is…

Q: Identify the different regions (elastic, plastic, fracture). Calculate: Yield stress Ultimate stress…

Q: 2. (3) The splined ends and gears attached to the A992 steel shaft are subjected to the torques…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: A liquid is flowing at a volumetric flowrate of Q per unit width down a vertical surface. Obtain…

A: The flow rate is per unit width.The flow rate is a function of density , viscosity , film thickness…

Q: Calculate the moment inertia Ix and Iy about the centroid axes x and y of the right-triangular area…

A: The sides of right triangle are

Q: a) Provide a resistance diagram labeling appropriate variables associated with this problem. b)…

Q: Find the reaction at the supports given a concentrated load of P=200N and the beam mass 200 kg. Use…

Q: 8. (With regeneration and two-stage compression) Air enters the compressor of a Brayton cycle with…

A: The inlet pressure the the compressor is The inlet temperature at the compressor is The inlet…

Q: Problem 2 For the Bridge Truss shown (pinned support at A, simple support at E) 1. Find the…

A: Given:The given truss is shown below;

Q: Calculate the heat loss through a 3-in. thick insulation board that has an area of 2- ft² and a…

Q: 2. Find the force exerted by a liquid with weight density w on one side of the vertically submerged…

A: Given:Weight density of liquid = wDepth of top of the plate from surface of liquid, h = 4 ftFrom the…

Q: What is the position of the center of mass of the bar, measured as distance x from the bar's left…

Q: The gear reducer is subject to a couple moments shown. Determine the resultant couple moment and…

Q: B W= VC= VA = rad/s A ladder is falling! The ladder has a length of 5 m. If 0 is currently 20° and B…

A: A ladder is falling.The ladder has a length of 5 m.If I is currently 20° and B is moving downward at…

Q: > Next question A triangular distributed load of max intensity w-490 N/m acts on beam AB. The beam…

A: Given:The maximum intensity of the triangular distributed load,

Q: Once aligned at the baseline a second point along the scales where the marks line up is chosen, one…

A: From the diagram of the given scale, the 50th division is in line with the 560th division of the…

Question

A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200 °C.
Conductivity k=133 W/m/K. The rod is in an air environment with To = 20 °C and h =
30 W/m²/K. What is the temperature of the rod 25, 50, and 100 mm from the casting?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: To determine the temperature of the rod at 25, 50, and 100 mm from the casting.

VIEW

Step 2: Calculating the temperature of the rod at 25, 50, and 100 mm from the casting.

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 21 images

SEE SOLUTION Check out a sample Q&A here

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

A long wire of diameter D = 2 mm is submerged in an oil bath of temperature T∞ = 23°C. The wire has an electrical resistance per unit length of Re′=0.01 Ω/m. If a current of I = 180 A flows through the wire and the convection coefficient is h = 529 W/m2 · K, what is the steady-state temperature of the wire? From the time the current is applied, how long does it take for the wire to reach a temperature that is within 2°C of the steady-state value? The properties of the wire are ρ = 2,334 kg/m3, c = 537 J/kg · K, and k = 43 W/m · K.
The inside surface temperature of a glass oven door (0.5 m x 0.5 m x 0.001 m) is 180°C, the outside surface temperature is 25°C, and the thermal conductivity of glass is 1.4 W/(m•K) What is the rate of heat transfer?
A 10 cm outer diameter pipe carrying saturated steam at a temperature of 195C is lagged to 20 cm diameter with magnesia and further lagged with laminated asbestos to 25 cm diameter. The entire pipe is further protected by a layer of canvas. If the temperature under the canvas is 20°C, find the mass of steam condensed in 8 hrs on a 100m length of pipe and interface temperature. Take thermal conductivity of magnesia as 0.07 W/m – K and that of asbestos as 0.082 W/m – k. Neglect the thermal conductivity of the pipe material. The latent heat of steam for given conditions can be taken as 1951 kJ/kg–K.
3.130 A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200°C. The rod is in an air environment with T = 20°C and h = 30 W/m²K. What is the temperature of the rod 25, 50, and 100 mm from the casting? 8
A 0.1 m diameter long rod at 20 °C is to be heated by a hot fluid of 200 °C. How long does it take the rod temperature to reach 70% of the fluid temperature if the followings are given? Convection coefficient h = 10 W/m2K Thermal conductivity k = 20 W/mK Thermal diffusivity a = 10-5 m2/s
A food product with 80% moisture content in a 7 cm diameter can wants to be frozen. product density is 1000 kg / m³ thermal conductivity is 1.0 W / (m K) and initial freezing temperature is -2.25 degrees Celsius after 8 hours in freezing medium -35 degrees Celsius Temperature to -10 degrees Celsius estimate convection heat transfer coefficient freezing medium assume the can as an infinite cylinder h =
2) Urethane (k = 0.026 W/m-K) is used to insulate the sidewall and the top and bottom of a cylindrical hot water tank. The insulation is 40 mm thick and is sandwiched between sheet metal of thin-wall construction. The height and inside diameter of the tank are 2 m and 0.8 m, respectively. The tank is in ambient air with T = 10 °C and h = 10 W/m²-K. If the hot water maintains the inner surface at 55 °C, and energy costs amount to $0.15 per kWh, what is the daily cost to maintain the water in storage? Argue that the thermal resistance of the tank wall is negligible. What does this say about the temperature drop across the tank wall?
A water tank is completely filled with liquid water at 40°C. The tank material is such that it can withstand tension caused by a volume expansion of 5 percent. Determine the maximum temperature rise allowed without jeopardizing safety. Assume a volume expansion coefficient value at that of 65 °C. (Just write the numerical answer. Include - if the answer is negative. No need to put the unit.) Properties of saturated water Volume Specific Heat Jkg - K Thermal Conductivity k, Wim- K Prandti Enthalpy Dynamic Viscosity H. kg/m -s Expansion Coefficient Number Density P. kgim Saturation of Pr Temp. T, "C B. 1/K Liquid Pressure Vaporization P, kPa Liquid Vapor hg, k/kg Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor 0.0171 1.792 x 103 0.0173 0.922 x 105 13.5 0.934 x 10-5 1.00 -0.068 x 10 3 1.00 1.00 0.01 0.6113 999.8 0.8721 0.0048 0.0068 2501 2490 2478 4217 4205 1854 0.561 0.571 1.519 x 10-3 1.307 x 10-3 0.946 x 10-5 1.138 x 10 3 0.959 x 10-5 1.002 x 10 3 0.973 x 105 999.9 1857 11.2 0.015…
What is the rate of heat transfer through a piece of Celotex 3 ft by 8 ft by 1 in. in thickness, if the temp of one surface is 80°F and of the other side is 60°F? thermal conductivity of Celotex in AES = 0.028. Pls determine the temperature gradient and the direction of the heat transfer as well.
Q3/ A 10-cm length of platinum wire 0.5 mm in diameter is placed horizontally in a container of air at 35 C and is electrically heated so that the surface temperature is maintained at 93•C. Calculate the surface temperature for heat lost by the wire 30W.
QUESTION 2 hot steam pipe (k =16 W/m K) has an inside and outside diameter of 80 mm and 190 mm. If the temperature of the steam is 523 K with h 3000 W/m² K and the outside temperature of the pipe is 353 K. If the pipe is 2 m long compelete the following the thermal resistance of heat transfer by convection is = the conductive heat resistance is the heat transfer per unit length is
A:Find the amount of heat transferred through an iron fin of thickness 5 mm, length 10 cm and width 100 cm. Also determine the temperature difference e at the tip of the fin at: 1- adiabatic tip, 2-heat convection at the tip. Assuming the atmospheric temperature of 28°C K=50 w/mK, h=10 w/m’K, O,=80°C. B-Why is the dimensional heat flow assumption important in the analysis of fins problems? C- Why are the annular fins more efficiency than others?.