# Formula for Heat loss in a pipe?

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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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# What is the formula for heat?

Heat=Mass x Specific Heat x Change in Temperature or H=M x Sp. Ht. x ^T

# Formula of heat?

The formula for heat is changing based on a few different factors.For example some materials create heat because they are mixed whileothers must be burned to produce heat.

# Head loss in a pipe?

when a pump is used to pump a fluid into a vertically arranged pipe , fixed upright; the fluid would reach a certain height at which point the fluid would stop in a pipe.

# What is heat gain and heat loss?

heat gain is when an object get hotter. heat loss is when an object gets colder.

# What is the formula to find pressure loss in fire fighting pipe lines?

The British fire and rescue services use the following formula for calculating the pressure loss due to friction in firefighting hose:. P f = 9000 f l L 2 / d 5 bar. wher

# 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

# What are the types of pipe losses?

friction loss head loss loss due to sudden enlargement

# Formula for measuring heat loss or heat gain?

Do a Google search on: ACCA Manual J

# What is pipe friction loss?

The energy lost through friction as a fluid flows through a pipe. The amount of energy lost is dependent on both the characteristics of the fluid (viscosity, density) and the

# Why heat gained and heat loss?

Since heat flows from high temperature region to low temperature region so when a hotter body comes in contect with colder body then hotter body loses heat to colder body unti

# What is the heat formula?

the formula for heat is: joules= change in temp* mass* cp by: Professor Thompson

# Formula for volume of steel pipe?

Volume in cubic units = pi*radius 2 *length

# 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)

# What is the formula calculating pipe lateral?

it is useful to calculate branch in any degree: play.google.com/store/apps/details?id=com.nasirstore.branch

# 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

# Is hysteresis loss considered heat loss?

In general even though energy is lost during hysteresis it is not called as heat losses . Generally I 2 R losses are called as heat losses because in these tye of only in thes