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# What is the formula for heat loss calculation in insulations?

# What is formula for calculation of line loss?

Line loss equations are complicated by transmission environment and temperature? Transmission env. - Include wire type, bus impedance in switching fields, etc. Temperature - T…emperature can change the wire resistance and thus line loss. Electric energy is transported across the countryside with high-voltage lines because the line losses are much smaller than with low-voltage lines. All wires currently used have some resistance (the development of high-temperature superconductors will probably change this some day). Let's call the total resistance of the transmission line leading from a power station to your local substation R. Let's also say the local community demands a power P=IV from that substation. This means the current drawn by the substation is I=P/V and the higher the transmission line voltage, the smaller the current. The line loss is given by Ploss=IÂ˛R, or, substituting for I, Ploss = PÂ˛R/VÂ˛ Since P is fixed by community demand, and R is as small as you can make it (using big fat copper cable, for example), line loss decreases strongly with increasing voltage. The reason is simply that you want the smallest amount of current that you can use to deliver the power P. Another important note: the loss fraction Ploss/P = PR/VÂ˛ increases with increasing load P: power transmission is less efficient at times of higher demand. Again, this is because power is proportional to current but line loss is proportional to current squared. Line loss can be quite large over long distances, up to 30% or so. By the way, line loss power goes into heating the transmission line cable which, per meter length, isn't very much heat.

# Formula for Heat loss in a pipe?

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 mat…erial 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

# Insulates against heat loss?

The Adipose Connective Tissue insulates against heat loss and provides reserve fuel.

# What insulates against heat loss?

Thermal insulation hinders the loss of heat energy. Clothing acts as thermal insulation for human bodies. In buildings, these materials are often used as thermal insulatio…n: plant straw, wood fiber, cellulose, polystyrene, vermiculite, urethane foam, perlite, recycled cotton denim.

# Why tissue insulates against heat loss?

Adipose connective tissue

# How the heat losses through insulation can be calculated?

Q = mct where q is the energy, m is the mass in kilograms, c is the specific heat in kelvins, and t is the change in temperature

# Why do insulation materials reduce heat loss?

They hold heat inside of the object NOOO! That's wrong ^ Insulation materials reduce heat loss because they are poor conductors. So please please don't put the first a…nswer!

# How heat loss is prevented by loft insulation?

my name is what

# How do you calculate heat losses in pipework?

Infrared Cameras are possible to rent, they will show the amount of heating coming off and thus it's efficiency.

# How does thickness of insulation effect heat loss?

The last answer was A... Thats not very helpful, and niether is me saying this. I lost the game

# How does loft insulation reduce heat loss?

the insulation keeps the heat from escaping 25% of heat lost through your household so insulation is a good thing to get

# What is insulates the body from heat loss?

Adipose tissue or commonly known as fat...

Answered

In Physics

# How does roof insulation reduce heat losses?

no

Answered

In Physics

# How loft insulation reduces heat loss?

keeps the heat below the loft so that it doesn't escape through the small cracks and holes in the roof.

Answered

In Uncategorized

# How does the thickness of the insulation affect heat loss?

The thicker the insulation, the more heat is kept in your home. This is because inside the insulation are tiny air bubbles, witch are not good conductors of heat. This means t…hat the heat energy can not pass through it.

Answered

In Science

# How can you insulate your home against heat loss?

you could put thick curtains up, have double glazing, loft insulation and draught excluders by doors

Answered

# What is the formula for calculating loss?

You calculate loss the same as you would do profit income minus expenses (outgoings) = profit/loss If the answer is negative then you are making a loss, if the answeris positi…ve then you are making a profit.