1-) A hot water produced in a facility enters a thin-walled pipe with a diameter of9 cm and a length of 90 m with a flow rate of 0.7 kg/s at 80 °C. This pipe is coveredwith a 2 cm thick insulation with a conductivity of 0.03 W/mK. The pipe is in anenvironment with a convection coefficient of 11 W/m³K and a temperature of 30 °C.RaTei Ra) Find convection heat transfer coefficient h.b) Find resistances by drawing resistance schematic.c) Find outlet water temperature.d) Determine T1 and T2 temperatures

convection heat transfer coefficient = 11W/m2K

1-) A hot water produced in a facility enters a thin-walled pipe with a diameter o 9 cm and a length of 90 m with a flow rate of 0.7 kg/s at 80 °C. This pipe is covere with a 2 cm thick insulation with a conductivity of 0.03 W/mK. The pipe is in a environment with a convection coefficient of 11 W/m²K and a temperature of 30 °

1-) A hot water produced in a facility enters a thin-walled pipe with a diameter o 9 cm and a length of 90 m with a flow rate of 0.7 kg/s at 80 °C. This pipe is covere with a 2 cm thick insulation with a conductivity of 0.03 W/mK. The pipe is in a environment with a convection coefficient of 11 W/m²K and a temperature of 30 °

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.24P

See similar textbooks

Related questions

Q: Heat is generated in a 2.0-cm-square copper rod at the rate of 30 MW/m³. The rod is exposed to a…

A: Given data: a=2.0 cmQ˙=30 MW/m3T∞=25°Ch=5 kW/m2 Need to determine the surface temperature of the…

Q: An ordinary egg can be approximated as a 5.5-cm-diameter sphere whose thermal conductivity of…

A: To Find : How long it will take for the egg to reachT=70°C Given : The diameter of sphere is d=5.5…

Q: a) if the environment is water with h 50 W/m2 K b) if the environment is air with h= 12 W/m2 K

Q: 1. The operations of the industrial management plant where you work asks you to determine the length…

A: Given data: Diameter of pipe =D = 2 cm = 0.02 mInlet temperature of water = T1 = 20°COutlet…

Q: Question 2 Steam at 320ºC flows in a stainless steel pipe, whose inner and outer diameters are D₁ =…

Q: xpression for ove

A: given:

Q: Q4/ Steam at T1=320°C flows in a cast iron pipe (k=80W/m. C) whose inner and outer diameters are…

A: As per Bartleby's policy in case of multiple questions I can solve only first one. Please repost…

Q: 2. Consider a flow of oil at 20oC in a 30 cm diameter pipeline at an average velocity of 2 m/s. A…

A: Given Diameter D = 30 cm = 0.3 m Average velocity V = 2 m/s Length of the pipe L = 100 m Surface…

Q: We have a system made up of a glass container (glass) whose bottom and top have been insulated. A…

A: It is asked to find the heat transfer coefficient in the case mentioned above

Q: A glass container with an insulationg cover with a surface areaof (r+150) cm2 and (r+10) mm tick is…

A: The temperature is 0 °C. The temperature of the second vessel is r+80°C. The surface area is r+150…

Q: A cylindrical steel tank with a diameter of 3 m and height of 4.4 m is used to store chilled water…

A: Given: r = d/2 = 3/2 = 1.5 m H = 4.4 m h = 15 W/m2K

Q: Dry saturated steam at 500 RK flows in a 20-cm I.D., 21 cm O.D. pipe. The pipe is covered with 8 cm…

Q: A spherical shaped vessel of 1.4 m diameter is 90 mm thick. Find the rate of heat leakage, if the…

Q: An ordinary egg can be approximated as a 5.5-cm-diameter sphere whose thermal conductivity of…

Q: Q4/ Steam at To1-320°C flows in a cast iron pipe (k-80W/m. C) whose inner and outer diameters are…

A: As per Bartleby's policy in case of multiple questions I can solve only first one. Please repost…

Q: A composite wall constructed of 2.5cm of steel (k-60.5 W/m-K) and 5.0 cm of aluminum (k177W/m-K)…

Q: An electric motor is to be connected by a horizontal steel shaft (k 42.56 W/m.K), 25 mm in diameter…

A: According to the given information, the diameter of shaft d is 25mm, the impeller of a pump,…

Q: For a saturated dry steam at 1,500 KPa that passes through a 100 mm (OD) steel pipe with a thickness…

A: We have given

Q: A steam is flowing through a 5.7 m long of steel tube that has inner and outer radii of r, = 0.015…

Q: Steam flows at 300 °C through the given pipe with an inner radius of 5 cm and a wall thickness of 1…

A: Given- h = 18 W/m2.C K = 30 W/m.C Ts = 220 C T∞ = 300 °C r1 = 5 cm = 0.05 mr2 =5+1=6 cm = 0.06 m L…

Q: A copper rod whose diameter is 2 cm and length 50 cm have one end in boiling water, the other end…

A: The diameter of the rod is d=2 cm=0.02 m The length of the rod is l=50 cm=0.5m The inlet temperature…

Q: An electric motor is to be connected by a horizontal steel shaft (k - 42.56 W/m.K), 25 mm in…

A: Given: k=42.56W/mkT0=540°CT∞=27°CTL=52°Ch=40.7W/m2Kd=0.025m Solution: Since the diameter of the fin…

Q: A wall (3m * 2m) consist of 10 cm face brick with 15 cm concrete and 1.3 cm cement plaster . The…

Q: Air at 10°C enters a 8 cm ID and 5 m long pipe at a rate of 3.5 kg/min. The inner surface of the…

A: Given data as per question Roughness =2mm Flow rate =3.5 kg/min Diameter of pipe =8 cm Length of…

Q: W A 30-cm-radius metallic sphere is having thermal conductivity of k = 100; , overall density of mk…

A: For solution refer below images.

Q: Hi, can you help me with the following problem? A thermally insulated tank of water 2 m x 2 m, depth…

A: Step 1: Step 2: Step 3: Step 4:

Q: Consider a person standing in a room. Determine the total rate of heat transfer from this person if…

Q: 3JA tirbine blade 6 cm long and having a cross sectional area 4.65 cm and perimeter 12 cm is made of…

A: Data given-

Q: A current of 200 A is passed through a stainless steel wire (k = 19 W/m.K) 3 mm in diameter. The…

A: Given data: The current in the wire is I=200 A The thermal conductivity of the wire is k=19 WmK The…

Q: Calculate the heat transfer rate in Btu/hr through the pipe on a stainless steel pipe with a length…

Q: B- A Blood warming device contains a 20 mm diameter copper pipe is used to carry warm water, the…

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

1-) A hot water produced in a facility enters a thin-walled pipe with a diameter of
9 cm and a length of 90 m with a flow rate of 0.7 kg/s at 80 °C. This pipe is covered
with a 2 cm thick insulation with a conductivity of 0.03 W/mK. The pipe is in an
environment with a convection coefficient of 11 W/m³K and a temperature of 30 °C.
Ra
Tei R
a) Find convection heat transfer coefficient h.
b) Find resistances by drawing resistance schematic.
c) Find outlet water temperature.
d) Determine T1 and T2 temperatures

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 by step

Solved in 4 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

1.67 In beauty salons and in homes, a ubiquitous device is the hairdryer. The front end of a typical hairdryer is idealized as a thin-walled cylindrical duct with a 6-cm diameter with a fan at the inlet that blows air over an electric heating coil as schematically shown in the figure. The design of this appliance requires two power settings, with which the air blown over the electric heating coil is heated from the ambient temperature of to an outlet temperature of and with exit air velocities of 1.0 m/s and 1.5 m/s. Estimate the electric power required for the heating coil to meet these conditions, assuming that heat loss from the outside of the dryer duct is neglected.
Fluid fluid with a temperature of -20C passes through a copper cylindrical wire. The outer diameter of the wire is 10 mm. The wire is in contact with air at a temperature of 25C, which is h = 50 W / m2K. The heat conduction coefficient of the wire is k = 0.5 W / mK. It will be applied in different thicknesses. a) Calculation separately for the resulting heat transfer per m when 0, 2.5, 5 and 7.5 m are applied. b) To interpret which thickness will increase the heat transfer by calculating the critical diameter. c) Graph the insulation and heat transfer rate against each other.
Pls answer asap
i need the answer quickly
Q1) Find the heat transfer rate through a plane wall 20cm thick and 0.1m2 heat transfer area. The temperatures across the wall are 100 "C and 10 C respectively and the thermal conductivity is varies according to the equation (k = 60(1+0.03T)).
I need the answer as soon as possible
Inner diameter 30 cm, outer diameter 40 cm and heat conduction coefficient 20 W / m ∙ a cylindrical pipe with oC Take it. 25 W / m3 uniformly on the pipe wall There is a constant rate of heat generation. Tube inner surface 75 oC and outer surface temperature is 95oC. a) You can get a general correlation all over the world in the pipe (Continuous regime). b) Temperature calculation address from the midpoint of the pipe wall.
Inner diameter 30 cm, outer diameter 40 cm and heat conduction coefficient 20 W / m ∙ a cylindrical pipe with oC Take it. 25 W / m3 uniformly on the pipe wall There is a constant rate of heat generation. Tube inner surface temperature 75 oC and outer surface temperature is 95oC. a) Obtain a general correlation for the temperature distribution in the pipe (steady state). b) Calculate the temperature at the midpoint of the pipe wall.
Answer this ASAP The diameter of the tube is 25 mm. The specific heat of water is 4.18 kJ/kg. °C. The overall heat transfer coefficient is 0.7 kW/m².°C. 1.Cmin 2.Maximum heat transfer rate 3.Heat transfer surface area
Q) The temperature of a heated plate is 88°C which is cooled by using pin-fins having a length of 5-cm, diameter of 1-cm, and thermal conductivity of (k=201 W/m-°C). The number of pins is (N=1800) and the temperature of the atmosphere is 10°C, while the convection heat transfer coefficient on the surfaces is 37 W/m2.°C. Assuming steady one-dimensional heat transfer along the fin and taking the nodal spacing to be 2.5-cm, determine (a) the temperature at the nodes along the fins, (b) the heat transfer rate from a single fin, (c) the heat transfer rate from all fins, and (d) the overall heat transfer rate from the heated plate which has dimensions of 0.6-m x 0.5-m with the fins.
W m-°C. 1.)A 2mx2m aluminum sheet (240 is 5mm thick and used to separate two types of gas (1.1) and (55) in an experimental chamber. The 1st type of gas is maintained at 20℃ while the 2nd gas is at -20C. Solve for the rate of heat transfer in kW.
Q1. A 50 meter long cast iron pipe with outer diameter of 10 cm passes in an open space of 288 K temperature. The outer surface of the pipe temperature is 423 K and the combined heat transfer coefficient on the outer surface of the pipe is 25 W/m? K. Considering and stating the necessary assumptions determine, (a) The rate of heat loss from the pipe (b) The energy lost per year if the cost of the fuel is 0.52 $/therm ( 1 therm = 105,500 kJ) (c) The thickness of the insulation if 98% of the energy loss is planned to be saved. Consider the conduction coefficient of the insulation is 0.035 W/mK. Tair = 288 K 423 K Steam 50 m Fiberglass insulation Figure Q1.