What is the formula for heat loss calculation in insulations?
30 people found this useful
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 P loss =IÂ²R , or, substituting for I , P loss = PÂ²R/VÂ² 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 P loss /P = PR/VÂ² 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.
The Adipose Connective Tissue insulates against heat loss andprovides reserve fuel.
Thermal insulation hinders the loss of heat energy. Clothing actsas thermal insulation for human bodies. In buildings, thesematerials are often used as thermal insulation: pla…nt straw, woodfiber, cellulose, polystyrene, vermiculite, urethane foam, perlite,recycled cotton denim.
Adipose connective tissue
Fat tissue is the best protection against the loss of heat in a body. People with a low percentage of fat tissue tend to be colder than those with higher content.
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
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… answer!
my name is what
Infrared Cameras are possible to rent, they will show the amount of heating coming off and thus it's efficiency.
The last answer was A... Thats not very helpful, and niether is me saying this. I lost the game
the insulation keeps the heat from escaping 25% of heat lost through your household so insulation is a good thing to get
Adipose tissue or commonly known as fat...
keeps the heat below the loft so that it doesn't escape through the small cracks and holes in the roof.
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.
you could put thick curtains up, have double glazing, loft insulation and draught excluders by doors