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pips are generally cylindrical in structure of amount of heat loss through pipe is given by the formula Q= 2 pi k L(T1-T2)/ln(r2/r1) where k=conductivity of material of which pipe is made T1= temperature of inside layer pipe T2=temperature outside layer of pipe L= length of pipe r1= inner radius r2=outer radius ln=natural logrithem pi=22/7 the above condition applies for steady state flow,single layer over cylinder and neglecting conductivity convection to take conductivity convection into account term Q* must be added Q*=2 pi L{ r1 hi(Ti-T1)+r2 ho(T2-To)} hi=convective coefficient for inside layer ho=convective coefficient for outside layer Ti= temperature of inside space of pipe To=temperature of outside space of pipe for unsteady condition there is another formulaa
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∙ 2009-04-16 07:40:49
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Heat loss in copper pipes?
The thickness of the pipe will effect the loss rate. Best thing to do is buy thermal isulating foam, normally comes in tubes will a slit down one side so it can be slid over the pipe easily. Also depending on the the fluid inside the conduit ( pipe ) and diameter, ambient temp, and location, you may be able to use a product such as heat trace. It is an electrical wrap that uses voltage and amperage to create heat to shield from the outer elements...
What are the types of pipe losses?
friction loss head loss loss due to sudden enlargement
What happen to the Head Loss of Water if the diameter of the pipe increases?
Head loss will decrease
What is the formula for water flow in a pipe if given the head of water and the diameter of the pipe?
Use Hazen-Williams Formula or use nomograph to solve it.
What is a heat no on pipe?
Used for inspection. Heat numbers make it possible to trace pipe from spools fabricated on a job to material documentation from a given melt. The matching documents will tell when and where the pipe was made, the material used and the pipe grade etc.
Formula for measuring heat loss or heat gain?
Do a Google search on: ACCA Manual J
What is heat loss formulae of water flow through PPR-C pipe line?
you have first to know the thermal conductivity of PPR that you are dealing with. normally, this is in range between 0.1 to 0.24 W/MK .then you apply this formula Q(IN WATTS) =Thermal Conductivity/MK)*A( surface area for the pipe M2 )temperature difference between fluid inside pipe and temprture of pipe surface K)/(thickness of the pipe M)
Why does insulation around the pipe stop it freezing?
Insulation slows down the loss of energy (heat flow) from the water in the pipe to the surroundings. It will protect from losing heat by convection (wind moving past the pipe removes heat faster than stationary air). If the temperature is cold enough, for a long enough time, eventually it will freeze, even with insulation.Insulation slows down the loss of energy (heat flow) from the water in the pipe to the surroundings. It will protect from losing heat by convection (wind moving past the pipe removes heat faster than stationary air). If the temperature is cold enough, for a long enough time, eventually it will freeze, even with insulation.
What is the formula for heat loss calculation in insulations?
http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatcond.html
Does copper pipe coming from attic that feels cold when AC is running need to be insulated?
Yes. This will prevent heat loss and condensation.
Is precipitation heat gain or heat loss?
heat loss
Is precipitation heat loss or heat gain?
heat loss
Heat loss in copper pipes?
The thickness of the pipe will effect the loss rate. Best thing to do is buy thermal isulating foam, normally comes in tubes will a slit down one side so it can be slid over the pipe easily. Also depending on the the fluid inside the conduit ( pipe ) and diameter, ambient temp, and location, you may be able to use a product such as heat trace. It is an electrical wrap that uses voltage and amperage to create heat to shield from the outer elements...
What is the difference between closed heat pipe and open heat pipe?
Pressure rises in the tube.
What is the formula on speed and height through a steam pipe?
What is the formula for speed and height thru a steam pipe
What is the chemical formula for pipe?
Pipe can be made from a wide variety of materials, so there is no single chemical formula for it.
Disadvantages of heat pipe?
Heat pipe collectors must be mounted with a minimum tilt angle of around 25° in order for the internal fluid of the heat pipe to return to the hot absorber.
