What is the rate of heat loss per meter of pipe

Assignment Help Mechanical Engineering
Reference no: EM13706653

A pipe with OD 6.03cm, ID 4.93cm carries steam at 250deg C with h = 200 W/m^2.K The pipe is covered with 2.5cm of magnesia (85%) insulation followed by 2.5cm of polystyrene (k = .025 W/m.K The outer surface is exposed to air at T = 20 deg C with h = 10 W/m^.K What is the rate of heat loss per meter of pipe?

Reference no: EM13706653

Questions Cloud

Find the final volume and the mass of air : An air pistol contains compressed air in a small cylinder, shown in Fig. P5.134. Assume that the volume is 1 cm3, pressure is 1 MPa, and the temperature is 27°C when armed. A bullet, m = 15 g, acts as a piston initially held by a pin (trigger); when ..
Determine the total deformation of the specimen : The specimen shown has been cut from a 1/4 in.-thick sheet of vinyl ( E = 0.45 X 106 psi) and is subjected to a 350-lb tensile load. Determine ( a) the total deformation of the specimen, (h) the deformation of its central portion BC.
Find the wnet-efficiency-back work ratio-rate of heat input : An Ideal reheats Rankine cycle. From 1 to 2 we go through Turbine 1. Then 2 to 3 we reheat in a steam generator. Then 3 to 4 we go through Turbine 2. Then from 4 to 5 we go through a Condenser. From 5 to 6 we go through a pump.
Contains a two-phase liquid-vapor mixture of refrigerant : A Closed, Rigid tank contains a two-phase liquid-vapor mixture of Refrigerant 22 initially at -20oC with a quality of 50.36%. Energy Transfer by heat into the tank occurs until the refrigerant is at a final pressure of 6 bars. Determine the final tem..
What is the rate of heat loss per meter of pipe : A pipe with OD 6.03cm, ID 4.93cm carries steam at 250deg C with h = 200 W/m^2.K The pipe is covered with 2.5cm of magnesia (85%) insulation followed by 2.5cm of polystyrene (k = .025 W/m.K The outer surface is exposed to air at T = 20 deg C with h = ..
Angular velocity and angular acceleration of the slotted arm : If a slider block C is fixed to the disk that has a constant counter clockwise angular velocity of 4 rad/sec, determine the angular velocity and angular acceleration of the slotted arm AB at the instant shown.
Pressure and specific volume in isentropic compression : Starting from the ideal gas law and the first law of thermodynamics derive the relationship between a) pressure temperature and, b) pressure and specific volume in isentropic compression show detail proof.
Using exponential smoothing with a weight : Using exponential smoothing with a weight of 0.6 on actual values..If sales are $45,000 and $50,000 for 2010 and 2011, what would be the forecast for 2012? (First forecast is equal to the actual value of proceeding year)
How much heat is added to accomplish : A copper vessel of mass 2kg contains 6kg of water. If the initial temperature of the vessel plus water is 20C and the final temperature is 90C, how much heat is added to accomplish this change assuming that there is no heat loss?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  The cogeneration plant compleate with pressure and

a natural gas-fired furnance in textile plant is used to provide steam at 130c at time of high demand the furnace

  A furnace is hsaped like a long equilateral-triangular duct

a furnace is hsaped like a long equilateral-triangular duct where the width of each side is 2 m. heat is supplied from

  The simple steam power cycle in prob 423 in modified in the

the simple steam power cycle in prob 4.23 in modified in the following way. steam entering the turbine is expanded to

  An uninsulated thin-wall pipe

An uninsulated thin-wall pipe of 75 mm diameter is used to transport water at a temperature of 3?C to an outdoor cooling towe

  Inlet 1 is a saturated vapor with a flow rate of 034 kgs

1 air at the inlet of a nozzle is at 500 kpa 42.2oc and a velocity of 87 ms. the nozzle exit pressure is at 132 kpa.

  The 2 mg car increases its speed uniformly from rest to 25

the 2 mg car increases its speed uniformly from rest to 25 ms in 30s up the inclined road. determine the maximum power

  Ten kilograms of ice at 260 k is dumped into 20 kg of

ten kilograms of ice at 260 k is dumped into 20 kg of liquid water initially at 300 k in an insulated container. the

  Find the equation of the path yfx and then determine the

the ball is kicked with an initail speed of 8 ms at an angle of 40 degrees with the horizontal. find the equation of

  What is the entropy change of the steam

Steam enters a nozzle at 4 MPa and 640°C with a velocity of 20 m/s. This process may be considered reversible and adiabatic. The nozzle exit pressure is 0.1 MPa. (a) Draw a sketch of this process. Include all known information. (b) What is the entro..

  A submarine is cruising in the ocean at a depth of 320 m

a submarine is cruising in the ocean at a depth of 320 m. salt water has a specific gravity of 1.03. determine the

  If instead of being free the rod ends are fixed at room

for steel cp 135 jkg-k a 4.5x10-6 ok density 7.85 gcm3 e 207 gpaa. a 1 m long steel rod 10 cm in diameter is heated

  Approximate a boeing 777 aircraft as a system with a fixed

approximate a boeing 777 aircraft as a system with a fixed mass of 200000 kg. the plane initially cruises at 270 ms at

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd