2. In a pharmaceutical plant, a copper pipe (k = 400 W/m-K)Liq. Oz. -200°Ch = 120 W/m?Kwith inner diameter of 20 mm and wall thickness of 2.5 mm isrPipe, k, 400 W/m-Kused to carry liquid oxygen flowing at a temperature of-200°C with a convective heat transfer coefficient of 120Insulationk, = 0.05 W/m KW/m*-K. The condition surrounding the pipe has an ambientair temperature of 20°C and a combined heat transfercoefficient of 20 W/m²K. If the dew point is 10°C, whatthickness of insulation (k = 0.05 W/m-K) around the copperpipe will avoid condensation on the pipe surface. Assumecontact resistance between the pipe and insulation isnegligible. (from Cengal, et al. Fundamentaks of Thermal FluidSurrounding air, 20°Cheombined = 20 W/m KDew point 10'CD,- 20 mmD,= 25 mmSciences)D3Note: the dew point is the temperature at which watervapor will condense on the pipe surface.

The related diagram of the pipe is given as,

plant, a Liq. O. -200°C h 120 W/mK with inner diameter of 20 mm and wall thickness of 2.5 mm is Pipe, k 400 W/m K used to carry liquid oxygen flowing at a temperature of -200°C with a convective heat transfer coefficient of 120 Insulation k,- 0.05 W/mK Surrounding air, 20°C heomtines 20 W/mK Dew point 10'C W/m-K. The condition surrounding the pipe has an ambient air temperature of 20°C and a combined heat transfer coefficient of 20 W/m-K. If the dew point is 10°C, what thickness of insulation (k 0.05 W/m K) around the copper pipe will avoid condensation on the pipe surface. Assume contact resistance between the pipe and insulation is negligible. (from Cengal, et al. Fundamentals of Thermal Fluid Seiences) D,- 20 mm D- 25 mm Note: the dew point is the temperature at which water vanor will condense on the nine surface

plant, a Liq. O. -200°C h 120 W/mK with inner diameter of 20 mm and wall thickness of 2.5 mm is Pipe, k 400 W/m K used to carry liquid oxygen flowing at a temperature of -200°C with a convective heat transfer coefficient of 120 Insulation k,- 0.05 W/mK Surrounding air, 20°C heomtines 20 W/mK Dew point 10'C W/m-K. The condition surrounding the pipe has an ambient air temperature of 20°C and a combined heat transfer coefficient of 20 W/m-K. If the dew point is 10°C, what thickness of insulation (k 0.05 W/m K) around the copper pipe will avoid condensation on the pipe surface. Assume contact resistance between the pipe and insulation is negligible. (from Cengal, et al. Fundamentals of Thermal Fluid Seiences) D,- 20 mm D- 25 mm Note: the dew point is the temperature at which water vanor will condense on the nine surface

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Problem 3: RT Air is flowing over an aluminum pipe (20mm OD, 5mm ID) at 6–. The pipe has 10mm thick…

A: Given data, The outside air is flowing at room temperature i.e., T∞ = 20 °C Velocity of the outside…

Q: Air flow across a 20m square is hape plate with velocity of 5 m/s force struem condition are 10% at…

A: Given:the length of the plate is the velocity of airflow is the temperature at the free stream is…

Q: Determine the convection heat transfer coefficient, ther- mal resistance for convection, and the…

A: Given:The diameter of the cylinder is the length of the cylinder is the surface temperature is the…

Q: Air flow across a 20m square is hape plate With velocity of 5 m/s force struem condition are loc at…

Q: Consider water at 327K flowing through pipes of three different cross-sections: round, square, and…

Q: a mass rate of o.05 kg/s through an Hol air flows with uninsnlated sheet metal duct of diameter…

A: Determine the bulk mean temperature and find the properties of air at the given condition as…

Q: rod of 2 cm and characteristic length of 0.5 cm diameter which is initially at 100 °C is quenched in…

Q: Computer processors work best when they are kept cold. You are interested in determining the cost…

A: In this problem We need to design a cooling system to cool the processor. The processor having a…

Q: A thermocouple is initially at temperature of T, and it is used to measure the temperature of air…

A: From conservation of enery, rate of change of internal energy due to temperature change is equal to…

Q: Heat transfer problem Water flows through a thin-walled cylindrical tube of diameter 1 cm,…

Q: Hot fluid "C= 2562 J/kg.k , Pr=51.3, µ 5.22E-3 Pa.s, k=0.260 W/m.K" flows at 1.3 kg/min inside a…

A: Cp = 2562 J/kg.K Pr = 51.3 Dynamic viscosity, u= 5.22 * 10-3 Pa.s k=0.260 W/m.K Hot fluid flow rate,…

Q: 2. Air at 20° blows over a hot plate 50X60 cm made of carbon steel maintained at 220°. The…

A: Given, Temperature of air = Atmospheric temperature = Ta = 20 oC Area of the plate = A = 50 cm x 60…

Q: 6.64 Consider application of the naphthalene sublimation technique (Problem 6.63) to a gas turbine…

Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

2. In a pharmaceutical plant, a copper pipe (k = 400 W/m-K)
Liq. Oz. -200°C
h = 120 W/m?K
with inner diameter of 20 mm and wall thickness of 2.5 mm is
rPipe, k, 400 W/m-K
used to carry liquid oxygen flowing at a temperature of
-200°C with a convective heat transfer coefficient of 120
Insulation
k, = 0.05 W/m K
W/m*-K. The condition surrounding the pipe has an ambient
air temperature of 20°C and a combined heat transfer
coefficient of 20 W/m²K. If the dew point is 10°C, what
thickness of insulation (k = 0.05 W/m-K) around the copper
pipe will avoid condensation on the pipe surface. Assume
contact resistance between the pipe and insulation is
negligible. (from Cengal, et al. Fundamentaks of Thermal Fluid
Surrounding air, 20°C
heombined = 20 W/m K
Dew point 10'C
D,- 20 mm
D,= 25 mm
Sciences)
D3
Note: the dew point is the temperature at which water
vapor will condense on the pipe surface.

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

Step 2

Step 3

Step 4

Step 5

Step 6

Step by step

Solved in 6 steps with 8 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 gas at 525 ° C flows through an AISI 316 stainless steel pipe (di = 94 mm and do = 100 mm). The pipe is covered with a layer of mineral wool granulate with 35 mm thick asbestos binders. The pipe is exposed to ambient air at 25 ° C. The heat transfer coefficients for the surrounding gas and air are 29 W / (m2 K) and 12W / (m2 K), respectively. Do the following: Estimate the temperature on the surface of the coating exposed to the environment.
Problem: A solid copper cube of 10-cm edge length(p =8954 kg/m³, c = 383 J/kg.K, k= 386 W/m.K) initially at a uniform temperature T;= 250°C is suddenly immersed in a well-stirred fluid which is maintained at a uniform temperature T = 50 °C. The heat transfer coefficient between cube and the fluid h=20O W/m²K. A. Check whether the lumped system analysis is suitable. B. Determine the temperature of the copper block at t= 5 min after the immersion. TE 250°C 10 cm Tm= 50 °C, h=200 w/mk
Small potato balls of 0.5 cm radius (can be approximated as a sphere) baked in the oven and initially at a uniform temperature of 160°C. Assume, potatoes have a density of 650 kg/m, specific heat of 3400 J/kgK and conductivity of 1 W/mK. You want to eat potatoes quickly without burning your tongue so that you have decided to cool them down with forced convection. Air h, T. hot potato initially Air temperature is 20°C and the convective heat transfer coefficient is 140 W/m?K. Calculate the time (in seconds) required for its surface temperature to drop 90°C.
KNOWN: Expression for face-averaged Nusselt numbers on a cylinder of rectangular cross section. Dimensions of the cylinder. FIND: Average heat transfer coefficient over the entire cylinder. Plausible explanation for variations in the face-averaged heat transfer coefficients. SCHEMATIC: Air V = 10 m/s T = 300 K c = 40 mm ASSUMPTIONS: (1) Steady-state conditions, (2) Constant properties. d = 30 mm
Water flows in a duct having a cross-section of 10x20 mm with a mean bulk diameter of 15.56 deg C. If the duct wall temperature is constant at 60 deg C and fully developed laminar flow prevails. a.) Calculate the heat transfer coefficient, h in W/m2-deg Cchoices: (405, 305, 151, 252) b.) What is the thermal conductivity of water at the given temperature, k in W/m-deg Cchoices: (0.604, 0.6, 0.585, 0.595) c.) Calculate the heat transfer rate per unit length in W/mchoices; (605, 366, 505, 404)