Determine the resistance (in F-h/BTU) of a hollow cylinder with an inside and outside radius of 2 in and 2.1 in, respectively. The length of the cylinder is 3 ft while the thermal conductivity is 24 BTU/hr-ft-F.

Determine the resistance (in F-h/BTU) of a hollow cylinder with an inside and outside radius of 2 in and 2.1 in, respectively. The length of the cylinder is 3 ft while the thermal conductivity is 24 BTU/hr-ft-F.

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.10P: 1.10 A heat flux meter at the outer (cold) wall of a concrete building indicates that the heat loss...

See similar textbooks

Related questions

Q: 3) Two circular shafts (shown in Figure) made of the same material and have the same length are…

Q: Determine the equivalent spring stiffness constant of the following spring in series and parallel.

A: Given: The stiffness of springs is 250 N/m, 175 N/m and 80 N/m.

Q: 186,000 m/h to km/y

A: Given data: Speed=186,000 m/h Need to determine the speed in km/year.

Q: Water is entering a heated tube at mass ow rate of 1.2 kg/s. The temperature at the inlet is 20 C…

Q: . Describe an application that a go/no-go gage would be used for and how it would be used.

A: A GO gauge, as its name suggests, is intended to "go" into the component feature, whereas "No Go…

Q: Use the tables of moist-air properties to find the enthalpy and specific volume for air at 70°F…

A: Introduction:- Psychrometry is a branch of science that deals with moist air. moist air is the…

Q: Q2. Calculate the allowable stress (reliability of 99%) on the swing joint using strength data…

A: Given data: Mean ± Standard deviation from testing = 170 ± 20 MPa We calculate the allowable stress…

Q: A concrete wall, which has a surface area of 20 m2 and is 0.30 m thick, separates conditioned room…

A: GivenA=20m2t=0.3mT1=25oCk=1W/mKpart a-15o≤T2≤38oCpart bk1=0.75W/mKk2=1.25 W/mK

Q: As we explained in earlier chapters, the air resistance to the motion of a vehicle is something…

A: Given-Information:- Width = 190 cm = 74.8031 inchHeight = 145 cm = 57.0866 inchVarying Speed Range,…

Q: 14. What is the pressure 2000 m below the surface of the ocean is SI Units The specific gravity of…

A: Given: h = 2000 m Specific gravity (S) = 1.025 Hence density of ocean water = 1.025 x 1000 = 1025…

Q: A of magnesium having a rectangular cross section of dimension 3.2 mm x 19.1 mm and a gauge length…

A: Given data: Cross-section of bar = A = 3.2 mm x 19.1 mm Gauge length = L = 63.5 mm For the given…

Q: 5. A transmission tower is held by three guy wires attached to a pin at A and anchored by bolts at…

Q: 80kn/m A Shear & Moment 15 kN R SM 5 kN/m vigen

Q: For a two degree of freedom system subject to free undamped vibrations, the inertia and stiffness…

A: As per honor code and answering guidelines I can answer first 3 subparts at a time of you want more…

Q: Determine the force in members CD, CJ. and KI and state if these members are in tension or…

Q: Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be…

A: Given DataP=75NQ=125Nθ=55°

Q: 11. The pressure of a boiler is 9.5 kg/sq. cm. The barometric pressure of the atmosphere is 768 mm…

A: Given data: PBoilerGauge=9.5 kg/cm2PAtm=768 mm of Hg Need to determine the absolute pressure in the…

Q: 18. Mark the one correct statement. a) Material and cross section create stress, loads resist…

A: given - multiple choice question

Q: Why are the internal stresses not produced in both working process ?

A: Hot and Cold Working Process

Q: F1=100N Let F₁ = [F1] N and let F2 = 350 N. g) Determine the magnitude FA of the force at pin A. h)…

Q: How can you express the equations of compatibility? Give examples of engineering designs in which…

A: given; (i) equation of compatibility? (ii) example of engineering designs in which torsion occurs.

Q: The torsional system of Figure Q6 oscillates about the centre of the disc. A linear spring and a…

A: Given: Radius of the inner disc→r=0.15 m Radius of the outer disc→R=0.25 m Mass of the disc→m=5 Kg…

Q: Given: The gear shown moves on a fixed horizontal rack. The gear has mass m and a radius of gyration…

A: Given: Mass of the gear=mgear Radius of gyration of the gear=R Mass of the rod=mrod Length of the…

Q: mooth pin at D and by vertical aluminum alloy [E = 10,C i] bars attached at joints A and C. Bar (2)…

Q: Design a flat rubber belt that needs to transmit 100kW for a system consists of two pulleys of…

Q: At a cross section in a rectangular beam with b=300 mm and d=500 mm, flexural reinforcement is 5T20.…

A: Calculate the area of the steel. 5T20 means,n=5 and d=20 mmthen,As=5×π4d2=5×π4202=1570.8 mm2…

Q: Problem#3: 40 KN 30 kN 60 KN 60 KN 30 KN. 40 KN I I 16 m 12 m 8 m I The three-step pulley is…

A: Given that: The three step pulley is subjected to three couples. Diameter of the three pulleys are 8…

Q: 1. How fast in rpm should the vessel be rotated about its own vertical axis so that 2/3 of its…

Q: Problem 5 Rigid bar ABCD shown in the figure is supported by a smooth pin at D and by vertical…

Q: 1000N A 900N TIN 9m 2004 gm C gm 3004 12 in E gm 400N F gm SOON G gm 3004 H 10 9 400

Q: 7. Determine the magnitude, direction, and sense of the resultant force for the coplanar concurrent…

Q: Arm AB has a constant angular velocity of 16 rad/s counterclockwise. The collar at D slides over the…

Q: Make a graph of x versus t for the ball. Because you have data only at certain instants of time,…

A: A graph of x versus t for the ball. Because you havedata only at certain instants of time, your…

Q: A vehicle travelling at 100 km/h has air passing through its radiator at the rate of 100 kg mol per…

A: Given: The vehicle speed, v = 100 km/h The air flow rate through radiator, ma = 100 kg mol/min The…

Q: State the frameworks of the International Standards, Primary Standards and Secondary Standards of…

A: for measurement different type of measurement categories. international measurement primary…

Q: F₁ = 600 lb x 5 60° Z 120° F₂= 400 lb

A: (Q1) F1 = 600 lb, F2 = 400 lb It is required to represent F1 and F2 in vector form. (Q2) F1 = 180…

Q: What are the speed and direction of gear D3 in the figure below? 2400 rpm CW D1 2" D2 FIGURE 6-41…

Q: Task 3: calculatepfif tires expand by 10% UseT; = 20°C T₁-50°C Pi = 200kPa

Q: 2. Give examples of engineering designs in which torsion occurs. Mechanics of Deformable Bodies…

Q: ce (kip) is required to punch a square hole with 2 inch on each side through a 3/8 inch thick plate…

A: Given:side of hole, a=2 inchthickness, t=3/8 inch or 0.375 inultimate shearing strenght, τ=42 ksi or…

Q: hen handwriting vectors, you must add arrows, etc. to indicate vector notation You record the…

Q: Determine the x coordinate of centroid of the shaded area. y I 1 300 mm y=yo-kx³ 3 150 mm x

Q: An Otto Cycle operates on 5 kg/s on hot-air standard with k=1.34. The conditions at the beginning of…

A: Note: As per policy we can solve the first three subparts. Please resubmit the remaining parts.

Q: If a pump is capable of lifting 5000kg of water through a vertical height of 60m in 15 min, the…

A: Given data m=5000 kgh=60 mt=15 min Here, m is the mass, h is the height and t is the time period.…

Q: 2. Compute the horizontal and vertical components for the 50 N force shown below.

A: Given in the question:

Q: A steam power plant operates on a Rankine cycle and has a net power output of 45 MW. Steam enters…

A: Wnet = 45 MW P1 = 7 MPa T1 = 450 oC P2 = 10 kPa x2 = 0.85 To Find: 1) TS diagram 2) Isentropic…

Q: A thick cylinder has an outside diameter of 100 mm and an inside diameter of 60 mm. It is…

Q: A farmer has a pump which discharges 100 lpm of water at a head of 10 m. The pump is driven by an…

A: Q1= 100lpm H1= 10m N=1700 rpm Pully-drive Combination (4"X4") ⇒D1= 4" D2 = 6 in

Q: An Otto Cycle operates on 5 kg/s on hot-air standard with k=1.34. The conditions at the beginning of…

Q: 7. An iron block weighs 5 N and has a volume of 200 cm³. What is the density of the block? a. 988…

Question

Correct Answer: 1.0784994169E-4 ± 1%

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 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

2.38 The addition of aluminum fins has been suggested to increase the rate of heat dissipation from one side of an electronic device 1 m wide and 1 m tall. The fins are to be rectangular in cross section, 2.5 cm long and 0.25 cm thick, as shown in the figure. There are to be 100 fins per meter. The convection heat transfer coefficient, both for the wall and the fins, is estimated to be K. With this information determine the percent increase in the rate of heat transfer of the finned wall compared to the bare wall.
1.10 A heat flux meter at the outer (cold) wall of a concrete building indicates that the heat loss through a wall of 10-cm thickness is . If a thermocouple at the inner surface of the wall indicates a temperature of 22°C while another at the outer surface shows 6°C, calculate the thermal conductivity of the concrete and compare your result with the value in Appendix 2, Table 11.
A high-speed computer is located in a temperature-controlled room at 26C. When the machine is operating, its internal heat generation rate is estimated to be 800 W. The external surface temperature of the computer is to be maintained below 85C. The heat transfer coefficient for the surface of the computer is estimated to be 10W/m2K. What surface area would be necessary to assure safe operation of this machine? Comment on ways to reduce this area.
A cooling system is to be designed for a food storage warehouse for keeping perishable foods cool prior to transportation to grocery stores. The warehouse has an effective surface area of 1860 m2 exposed to an ambient air temperature of 32C. The warehouse wall insulation (k=0.17W/(mK)) is 7.5 cm thick. Determine the rate at which heat must be removed (W) from the warehouse to maintain the food at 4C.
2.55 A long, 1-cm-diameter electric copper cable is embedded in the center of a 25-cm-square concrete block. If the outside temperature of the concrete is 25oC and the rate of electrical energy dissipation in the cable is 150 W per meter length, determine temperatures at the outer surface and at the center of the cable.
The heat transfer coefficient between a surface and a liquid is 57 W/(m2K). How many watts per square meter will be transferred in this system if the temperature difference is 10C?
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.
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.
Determine the resistance (in F-h/BTU) of a hollow cylinder with an inside and outside radius of 2 in and 2.2 in, respectively. The length of the cylinder is 4 ft while the thermal conductivity is 22 BTU/hr-ft-F
The temperature at the inner and outer surfaces of a boiler wall made of 25 mm thick steel and covered with an insulating material of10 mm thickness are 300 C and 50C respectively. If the thermal conductivities of steel and insulating material are 58W/mC and 0.116W/mC respectively, determine the total resistance through the boiler wall. (Note area of sample boiler wall is 8 m2)
The resistance of a copper wire used to make a motor is 0.5 Ω at 25C and 0.8 Ω at the motor’s operating temperature. Determine the operating temperature and the rise in temperature of the motor, given that copper has a temperature constant of 234.5C.
1 mm thick copper plate (k=386 W/m-c) that are 15 cm x 20 cm in size if the thermal contact conductance on both sides of the copper plate is estimated to be 6,000 W/m-c, determine the % error involved in the total thermal resistance of the plate if the thermal contact conductance are ignored.