A blanket or jumper works very well but if you don't have one of those and its critically cold then here are some things to do. Wrap your arms around yourself, this helps contain core temparature and warms your arms, which if bare can get quite cold. If your in a group, huddle like penquins. You don't feel warm to yourself, but to other people, your skin is warm. Keep moving your fingers and toes to prevent them from becoming numb and getting frostbite. Somethimes if you get 1-2 degrees below your core temparature, hypothermia kicks in, this can make you feel sleepy, it is when your body cannot function proparly because of the cold. More then 4 degrees below your core temparature and your practically dead. (Core temparature is about 37 degrees celcius.) Hope I helped.
Heat production can be reduced and it cannot be prevented. Reduce current density by increasing conductor cross section or increase core area to reduce copper content. In both cases there are limits.
AnswerIf you prevented heat loss from a transformer, then its temperature would continue to rise until, possibly, its insulation fails. So, heat loss is essential! With power (transmission) and utility Transformers, this is one of the reasons for them being oil immersed. In the case of the smaller, utility, transformers cooling results from oil which circulates, naturally, by convection through heat exchanger tubes on the outside of the transformer's tank. In the case of large power transformers, in addition to convection, the oil can be pumped through external heat exchangers which are then forced-air cooled or even cooled with water. The other reason for using oil, is its insulation properties which allows the transformer to occupy a far smaller footprint.
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Insulate the attic.
for instance, Heat loss through the roof of the house can be reduced by laying loft insulation. This works in a similar way to cavity wall insulation.
keeps the heat below the loft so that it doesn't escape through the small cracks and holes in the roof.
How long is a piece of string? Heat can be lost through many parts of a house. Badly fitted windows and doors being the largest source of heat loss. Double or triple glazing being required in windows. Through the chimney, also. The roof is a major contributor. Walls, floor also aid heat loss. also you can eat energy as it gives you a warm feeling inside yummmy!!!
Generally, the heat in your house rises. This can mean that a lot of heat is lost through the roof. If you put insulation in your loft, the insulation is a poor conductor of heat so the heat stays below the loft and your loft is cold. Then less heat gets to the roof and so less heat is lost.
Heat always flows from a warm region to a cooler region. An uninsulated house loses heat at a faster rate during cold climates than an insulated one. Insulating a loft reduces the amount of heat loss from the roof by means of installing insulating materials such as fiberglass matting, which reduce the U-value of the loft. The U-value provides an indication of how much heat loss occurs from an area, the higher the U-value, the greater the heat loss.
If a large roof is twice the area of a small roof and they are otherwise the same, the heat loss will be approximately double. If the large roof is twice as insulated as the small roof the heat loss will be similar.
for instance, Heat loss through the roof of the house can be reduced by laying loft insulation. This works in a similar way to cavity wall insulation.
keeps the heat below the loft so that it doesn't escape through the small cracks and holes in the roof.
Heat rises so the best be would be to put a crap tonne of insulation in th roof
heat is lost by radiation because heat rises and because heat rises it goes through the roof so the heat =radiation makes the heat go through the roof year 10 wrote this u all got done
Insulating material wrapped around pipes, boilers, etc., or laid in a roof loft, to prevent loss of heat
A roof insulates a house from gaining radiated heat from the sun by shading it, and if air is allowed to circulate under the roof this helps to reduce the amount of heat transmitted from the roof as it heats up. A roof insulates a house from losing heat from the inside of the house by reducing the air circulation over the ceiling as the air that flows past will take away heat with it. The roof itself does not usually provide the main insulation. Usually specific insulating materials are added just above the ceiling. These either trap air in a great many very small pockets reducing the opportunity for air flow and circulation (which would allow heat loss through convection and conduction), and are made of materials that minimize conduction, or are reflective to minimize heat loss through radiation.
Insulation, such as fiberglass.
How long is a piece of string? Heat can be lost through many parts of a house. Badly fitted windows and doors being the largest source of heat loss. Double or triple glazing being required in windows. Through the chimney, also. The roof is a major contributor. Walls, floor also aid heat loss. also you can eat energy as it gives you a warm feeling inside yummmy!!!
Generally, the heat in your house rises. This can mean that a lot of heat is lost through the roof. If you put insulation in your loft, the insulation is a poor conductor of heat so the heat stays below the loft and your loft is cold. Then less heat gets to the roof and so less heat is lost.
Roof ice dams are an annoying source of roof damage, leaks, and heat loss in the winter.The main causes are drip melt from improperly capped warm air vent pipes and poor roof insulation.Laying a snow melt sock onto the roof so it crosses the ice dam and overhangs the gutterwill melt through the snow and ice and create a channel for water to flow down into the gutters or off the roof.
Heat leaves your house through the roof, floors, walls, doors and windows by means of draughts, radiation and conduction.