Faced with such a concept, the thermal conductivity of air, we begin to wonder - what is it all about?This mutual exchange of particles between the bodies, that is, the body that has more particles are heated, the particles pass the body, which are less heated.
Speaking of thermal conductivity in the air, it is necessary to note the fact that the transfer of molecular particles in space that is going on the molecular motion of the particles.Sharing can occur with similar bodies, and different in composition.This heat transfer can be accomplished in three states: gas, liquid crystal (solid state).
thermal conductivity of the air there for the leveling of the temperature between the bodies with the help of the impact and reception of hot particles.To do this, it is necessary to precise calculation.Determination of thermal conductivity calculated by the Fourier law by a special formula.It is used in the construction of buildings, structures, or any premises where offices will be located, or which can be used as a place to stay.
thermal conductivity of the air helps builders to choose the right one or the other material, depending on the purpose of operating the buildings.For rooms that are adapted for location, pick up materials that will retain heat and do not miss the cold air flow.
most good conductors of warm energy are different types of gases.Most poor conductors - all common metals, for their heating and to start the movement of the particles need high temperatures, which in normal conditions can not be achieved.The exchange between the bodies of the particles can be observed when we cook on a stove or fire.
opening in the plate gas, we set fire to it, thereby starting heat directed to the pan, then the particles of the material from which made dishes, begin to give its heat inside the cookware substance, and it is heated.This method of energy transfer and explains the thermal conductivity of the air.
Thermal conductivity is very dependent on the structure of matter.What is the porosity, the less conductivity.There is such a term as a change in conductivity.It refers to those substances that can move from one state to another, for example, ice and water.
Currently, the measurement of the thermal conductivity of a substance produced using special devices that allow isledovat thermal conductivity at the heated surface of the material being measured from 30 to 750 degrees.
such devices consist mostly of the electric heating element, low-inertia heat meters, which are located on the thermocouple, and the construction itself is located in a metal housing, which is filled with insulating material.The heating element, heat meters and a refrigerator made in disk form.
Knowing the thermal conductivity of the air, you can equip your house or apartment so they were warm, but also be able to advise their relatives the right to have the material, such as upholstery wall in a private house, so that it was comfortable, cozy and quiet.
for construction purposes you can use a small foam sheets for wall thickness, since they retain heat well.In the villages build houses of wood, because the tree also holds heat for a long time, unlike concrete.
