Explain thermal insulator
Explain thermal insulator
The thermal insulation means all the techniques used to limit heat transfer between a hot medium and a cold medium. Thermal insulation is used in many areas including: building (maintaining a comfort temperature inside a building by spending the minimum energy), industry , the automobile , the chain The cold , the kitchen and the textile .
Heat Exchanges
A heat exchange occurs between two media when there is a temperature difference between the two environments and especially since the temperature difference is important. Heat is propagated from the hot medium to the cold medium by means of conduction , radiation , convection or by the simultaneous action of one or more of these phenomena.
The purpose of thermal insulation is to reduce or even eliminate heat exchanges between two bodies of different temperatures. It may be to keep the heat present inside a house, or keep it cold in a refrigerator . This involves interposing an insulating material between the hot medium and the cold medium. This material generally called "heat insulator" can be a simple dry layer of air has even the air gap between the two environments.
Building
The insulation of a building reduces the heat exchange between the interior of the building and the outside environment, thus reducing the need for heating and, where appropriate , air conditioning . This insulation must be thought of according to the climatic constraints of the place in which the building is located. Thermal insulation is the basic principle of the passive house . It traps warmth inside in winter and keeps the house cool in summer. Improved insulation reduces energy consumption; gold, reduced energy consumption means, mostly, reduced GHG emissions ( greenhouse gases ).
The thermal insulation means all the techniques used to limit heat transfer between a hot medium and a cold medium. Thermal insulation is used in many areas including: building (maintaining a comfort temperature inside a building by spending the minimum energy), industry , the automobile , the chain The cold , the kitchen and the textile .
Heat Exchanges
A heat exchange occurs between two media when there is a temperature difference between the two environments and especially since the temperature difference is important. Heat is propagated from the hot medium to the cold medium by means of conduction , radiation , convection or by the simultaneous action of one or more of these phenomena.
The purpose of thermal insulation is to reduce or even eliminate heat exchanges between two bodies of different temperatures. It may be to keep the heat present inside a house, or keep it cold in a refrigerator . This involves interposing an insulating material between the hot medium and the cold medium. This material generally called "heat insulator" can be a simple dry layer of air has even the air gap between the two environments.
Building
The insulation of a building reduces the heat exchange between the interior of the building and the outside environment, thus reducing the need for heating and, where appropriate , air conditioning . This insulation must be thought of according to the climatic constraints of the place in which the building is located. Thermal insulation is the basic principle of the passive house . It traps warmth inside in winter and keeps the house cool in summer. Improved insulation reduces energy consumption; gold, reduced energy consumption means, mostly, reduced GHG emissions ( greenhouse gases ).
