4) A horizontal pipe 6 m long and 12.5 cm in diameter is maintained at a temperature of 150-C in a large room where the air is 20-C and 1 atm. The walls of the room are at 38°C. Assume that €=0.7 for the pipe. How much heat is lost by the pipe through both convection and radiation? 1:44 PM

4) A horizontal pipe 6 m long and 12.5 cm in diameter is maintained at a temperature of 150-C in a large room where the air is 20-C and 1 atm. The walls of the room are at 38°C. Assume that €=0.7 for the pipe. How much heat is lost by the pipe through both convection and radiation? 1:44 PM

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 5.45P: The air-conditioning system in a Chevrolet van for use in desert climates is to be sized. The system...

See similar textbooks

Related questions

Q: Calculate the moment of inertia of the composite figure, Ix and Iy.

Q: Question 2 A steel railroad rails 10 m long are laid with clearance of 3 mm at a temperature of…

Q: Given the differential equation dy = x² + y² 2 dx = with y (0) 1, compute y (0.02) using Euler's…

A: Apply modified Euler's method with serp size 0.01

Q: For the shallow shaft, the inside diameter, d is generally expressed in terms of the outside…

A: Solution of the question is given below:

Q: Analysis of Trusses by the Method of Joints ● ● Dismember the truss; draw the free-body diagrams of…

A: Support reactions:

Q: E=210GPa; L=400mm; A=2.5Cm²; F1-400N; F2= -600N for the numerical application F2- F1 L 1.5 L 2A A L…

Q: A pipe of diameter 400 mm carries water at a velocity of 20 m/s.The pressure ta point A is 300000…

Q: Name three sources of information when conducting accident investigation

A: The three source of the information while conducting the accident investigation

Q: 14 Q1: The machine part of negligible weight is supported by a pin at A and a roller at Cas shown in…

A: find the reaction force at point A and point C.

Q: Essay Questions Multiple-Choice Questions Two or more gears working in tandem are called what? A.…

A: Ans.1: Option D is correct. Transmission Two or more gears working in tandem is called the…

Q: certain coal fire power plant has a heat rate of 2.88 x 108 calories per kW-hr. Coal cost Php 2,500…

A: 1 btu = 0.000293071 kWh = 0.252164 kcal = 252.164 cal 13000 btu = 3.8099239 kWh = 3278.1372 kcal =…

Q: Find the general equation of the conic with the given properties. An ellipse with one focus at…

Q: Solve for the hydrostatic force per meter length acting on the radial tainter as shown in the…

Q: Stiffness is: ratio of force to deformation ratio of force to modulus of elasticity ratio…

Q: 11 in AC B 40° b E D a G 7 in 4 in F

Q: B lg (pº/kPa) = A -- (T/K)+C 1. Fixed 200 kPa, calculate the dew and bubble point compositions? 2.…

A: Finding the bubble point . bubble point is the temperature at which liquid mixture start to boil. we…

Q: In the figure below, (a) determine the tensions at blocks B and A as well as their respective…

Q: 2. Find the centroid of the figure shown. y 20 in + 18 in 10 in 12 in X

Q: Q1) A glass tube is inserted into a flowing stream of water with one opening directed upstream and…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: A 2 ft diameter and 3 ft height cylindrical drum that is filled with water (p=1000 kg/m³) is located…

A: Calculated specific weight of water.

Q: To XX Tyx=-60MPa T. = 40MPa ZX = 100MPa (C) Txy = -60MPa Oyy = 0 Tzy = 0 Txz = 40MPa Tyz = 0 622 =…

Q: Q2/ A pipe with a radius of 15 mm is attached to a garden hose with a nozzle. If the velocity of…

Q: P₁ 480 kPa T₁ = 550 K Ex: A combustion chamber consists of tubular combustors of 15-cm diameter.…

Q: A centrifugal pump discharge 7500 L of water per minute against a total head of 25 m when running at…

Q: 3. Compute for the reaction at the roller B, the force components acting on the ball- and-socket at…

Q: Q1: A gas turbine power plant operating on an ideal Brayton cycle has a pressure ratio of 8. The gas…

A: Given:rp=8T1=300 KT3=1300 K

Q: A block weighing 500 N is held by a rope that passes over a horizontal drum. The coefficient of…

Q: A metal rod 40.125 cm long at 20°C and 40.148 cm long at 45°C. Calculate the average coefficient of…

A: Given:L1=40.125 cmT1=20°CL2=40.148 cmT2=45°C

Q: Five forces f 1 ,f 2, f 3 f4 and fs of magnitude 1.0 dyne, 2.0 dynes, 3.0 dynes, 4.0 dynes, and 5.0…

A: Given data F1 = 1 dyneF2 = 2 dyneF3 = 3 dyneF4 = 4 dyneF5 = 5 dyne

Q: Example 1 Forces F1 and F2 act on the bracket as shown. Determine the projection Fb of their…

Q: Q3/ Consider Steam is cooled from 550 to 111.4 °C. Assume that during this process the pressure…

Q: An equilateral triangular plate of 3 m side is immersed vertically in such a way that the apex is in…

Q: Q1: The machine part of negligible weight is supported by a pin at A and a roller at C as shown in…

Q: 15. Two point charges, initially 2.0 cm apart, experience a 1.0-N force. If they are moved to a new…

Q: 6.7 Determine the value of EIS at midspan of the simply supported beam. Is the deflection up or…

A: Draw the free-body diagram of the beam.

Q: A tube of 50 mm outside diameter and 2mm thickness is attached at the end by means of rigid flanges…

Q: Horizontal stream with water with a cross sectional area of 0.1 ft2 and a velocity 40 ft/s has…

A: given data cross section area = 0.1 ft^2 velocity = 40 ft/sec find the kinetic energy.

Q: A cylindrical gate with surface XY is supported by a hinge at point 1. The length of the gate…

Q: Q.3) Draw the shear force and bending moment diagrams. 450 N/m 0.15 m 200 N/m 0.10 m 0.20 m

Q: The system is made up of a bar, supported by a pin at point A and by a smooth collar at point B (the…

Q: A vented tanker is to be filled with fuel oil with Density= 920 kg/m3 and Viscosity =0.045 kg/m s…

Q: √3=9 P₁ = 9 P3=9 27=? P₁ = 30 KN 4₁34 D=450mm Ref Axis Z₂-5 3 m K J45 3M 73=4.5 x 12:2.5 1 2D₂ = 300…

Q: Q1) In a cylinder-piston arrangement shown (D₁ = 100 mm), the piston is moving downwards at Vp = 0.5…

A: Given data: D1=100 mmVp=0.5 mm/sD2=10 mmD3=50 mm Need to determine the rate at which the depth z of…

Q: A closed cylindrical tank contains 2.6m of water, 5.4m of oil (s=0.82) and the air above the oil has…

Q: Q5) Using a system similar to that shown in figure, compute the required air pressure above the…

A: Given data h1 = 0.3 mh2 = 5 mWe have to find the air pressure required to cause the jet to rise to…

Q: 7. The man pushes the 100 lb homogeneous crate with a horizontal force P. Determine the largest…

Q: √3=9 Pq = ? P3=9 27=? P₁ = 30 KN √₁-3 D=450mm Ref Axis Z2-5 te K за 45 73=4-5 12=2.5 D₂=309 V3=9 >…

A: Apply mass conservation and Bernoulli equation to solve this problem Find V3, P2 and p3

Q: A) What are the requirements for a good boiler B) What are the requirements for an efficient steam…

Q: 3. A uniform sphere has a mass of 8kg and a radius of 0.1m. It is rolling down a 20° incline without…

Q: A transfer pump delivers water from an on ground to an elevated tank thru a 120m-100mmØ transmission…

A: Pipe length, L=120 mPipe diameter, d=100 mm =0.1 mSupply flow rate, Q=120 gpm…

Question

4) A horizontal
cm in diameter
pipe 6 m long and 12.5
is maintained at a
temperature of 150-C in a large room
where the air is 20°C and 1 atm. The
walls of the room are at 38.C. Assume
that €=0.7 for the pipe. How much heat
is lost by the pipe through both
convection and radiation?
1:44 PM

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

Given

VIEW

Step 1

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

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 spherical communications satellite, 2 m in diameter, is placed in orbit around the earth. The satellite generates 1000 W of internal power from a small nuclear generator. If the surface of the satellite has an emittance of 0.3, and is shaded from solar radiation by the earth, estimate its surface temperature.
An electrical transmission line of 1.2-cm diameter carries a current of 200 amps and has a resistance of 310-4 ohm per meter of length. If the air around this line is at v, determine the surface temperature on a windy day, assuming a wind blows across the line at 33 km/h.
The heat transfer rate from hot air by convection at 100C flowing over one side of a flat plate with dimensions 0.1m0.5m is determined to be 125 W when the surface of the plate is kept at 30C. What is the average convection heat transfer coefficient between the plate and the air?
A pipe carrying superheated steam in a basement at 10C has a surface temperature of 150C. Heat loss from the pipe occurs by radiation (=0.6) and natural convection (hc=25W/m2K). Determine the percentage of the total heat loss by these two mechanisms.
Using Table 1.4 as a guide, prepare a similar table showing the orders of magnitude of the thermal resistances of a unit area for convection between a surface and various fluids.
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.
1.29 A spherical interplanetary probe with a 30-cm diameter contains electronic equipment that dissipates 100 W. If the probe surface has an emissivity of 0.8, what is its surface temperature in outer space? State your assumptions in the calculations.
Determine the rate of heat transfer per meter length from a 5-cm-OD pipe at 150C placed eccentrically within a larger cylinder of 85 magnesia wool as shown in the sketch. The outside diameter of the larger cylinder is 15 cm and the surface temperature is 50C.
The air-conditioning system in a Chevrolet van for use in desert climates is to be sized. The system is to maintain an interior temperature of 20C when the van travels at 100 km/h through dry air at 30C at night. If the top of the van is idealized as a flat plate 6 m long and 2 m wide and the sides as flat plates 3 m tall and 6 m long, estimate the rate at which heat must be removed from the interior to maintain the specified
1.79 Consider the cooling of (a) a personal computer with a separate CPU and (b) a laptop computer. The reliable functioning of these machines depends on their effective cooling. Identify and briefly explain all modes of heat transfer involved in the cooling process.
3.10 A spherical shell satellite (3-m-OD, 1.25-cm-thick stainless steel walls) re-enters the atmosphere from outer space. If its original temperature is 38°C, the effective average temperature of the atmosphere is 1093°C, and the effective heat transfer coefficient is , estimate the temperature of the shell after reentry, assuming the time of reentry is 10 min and the interior of the shell is evacuated.
The interior wall of a large, commercial walk-in type meat freezer is covered under normal operating conditions with a 2-cm thick layer of ice. One day, a power outage cuts electricity to the refrigeration system of the freezer. Estimate the time required to melt this layer of ice if it has a mass density of 700kg/m3 and a latent heat of fusion of 334 kJ/kg. Consider the air temperature inside the freezer to be 20C with a heat transfer coefficient of 2W/m2K for convection from the freezer surface to air, and clearly state the assumptions made in your calculations.