Convection, definition of

Physics. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.

Often encountered by people the most when heating a home, as the heat rises to the ceiling. The opposite effect, cooling, can be observed near windows on a cold night, the windows cool the air and it drops. Therefore convection often causes drastic heat loss close to windows. If not dealt with (by the usage of curtains or double glazing usually) this can contribute greatly to heating and cooling costs, as in Summer you will get the opposite effect of heat easily entering the property from the outside via the glass & convection.

• Solar Energy - how you can use the Sun
  The Sun's Energy can be used in way different ways, we look at the various options available.
• Ecologically Sustainable Development, what it is and how you can do it
  Ecologically Sustainable Development (ESD) is defined and explained in detail in this article; and how it helps you to be more green and eco friendly.
• What is R-Value, U-Value and how do they relate to insulation?
  How the R-value of a buildings insulation or home is calculated and the factors that effect the final R value, and how to use it.
• What is a Trombe Wall and how can you use one?
  Trombe Walls can provide free heating, cooling and ventilation. We explain how Trombe Walls work; how to build a Trombe Wall and how such a wall saves money by reducing energy usage.
• What is convection and how it effects your heating costs
  Convection directly effects the cost of keeping your house warm in winter. This article explains what convention is and some practical tips on how to battle convection.
• Being Green in your Bathroom
  How to be more green in your bathroom from saving water to bathroom cleaning.
• The importance of building orientation
  Building orientation to the Sun is important to reduce energy consumption, keeping comfortable and saving money. This article explains how best to get building orientation correct. Through a combination of benefits and opportunities the correct building orientation could save you thousands.
• What is Passive Solar?
  Passive solar building design is explained and how passive solar principals are used to design green homes and buildings, and save you money.
• Keeping your home Cool in Summer or Warm in Winter for free!
  How to keep cool or warm in your home by design, either in Summer or Winter, whilst reducing costs to you and the Earth..

• Pollution enhanced thunderstorms warm the planet?
  From the DOE/Pacific Northwest National Laboratory, something that doesn’t make much sense to me. As shown in the diagram above, thunderstorms transport heat from the lower troposphere upwards. The heat source at the base of the atmosphere (at the...

Related Tags: energy efficiency, insulation, glass, glass, windows