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Being designed to radiate (give out/emit etc) the thermal energy of the hot water inside them, a convection radiator will heat the air above itself. As the gas is heated it expands (thermal energy is "converted" to kinetic energy and hence the molecules move faster and hence expand), as the gas expands it's density decreases and so it rises above the cooler, denser gas surrounding it.
As more gas is heated the gas will diffuse across the roof of the room and gradually cool.
When the gas is initially heated it's original volume is filled by in-rushing cooler gas, this in turn is heated, eventually the original gas, which has recently cooled and descended, is heated once more thus forming a convection current.
One of the problems with convection heating of any kind is the tendency for the central areas of large spaces to remain unheated, furthermore longer spaces may not be heated at the far end from the heat source as the gas cools and descends before travelling the length of the space.
What else can I help you with?
Where do convection work best?
Convection works best in fluids like air and water, where temperature differences lead to density variations and create fluid motion. It is commonly seen in the Earth's atmosphere, oceans, and in heating systems like radiators and hot air balloons.
Why central heating radiators work better if they are painted black?
The color black neturally magnifies heat.
Why do so-called radiators which are part of central heating system have wrong name?
Radiators in a central heating system give off heat through radiation, convection, and conduction. While they primarily rely on convection to warm a room, they are named after the radiation method of heat transfer. It's a historical naming convention that has stuck over time.
How does convection occur in radiators?
Convection is defined in the related link. It requires molecular movement to carry the heat away. The exposed surface of a radiator is hot and in contact with air. The air molecules, when in contact with the surface, pick up heat energy and move away, carrying the heat with them -- hence, convection. =============================
What uses convection?
Lava lamps and hot air balloons
What are the applications of convection?
Forced convection are used in car radiators, cooling towers, air cooled heat exchangers etc.
What are applications of convection?
Forced convection are used in car radiators, cooling towers, air cooled heat exchangers etc.
Radiators in central heater system transmit most heat by means of what?
convection
What are the applications of forced convection?
Forced convection are used in car radiators, cooling towers, air cooled heat exchangers etc.
Where do convection work best?
Convection works best in fluids like air and water, where temperature differences lead to density variations and create fluid motion. It is commonly seen in the Earth's atmosphere, oceans, and in heating systems like radiators and hot air balloons.
Why central heating radiators work better if they are painted black?
The color black neturally magnifies heat.
Why do so-called radiators which are part of central heating system have wrong name?
Radiators in a central heating system give off heat through radiation, convection, and conduction. While they primarily rely on convection to warm a room, they are named after the radiation method of heat transfer. It's a historical naming convention that has stuck over time.
How does convection take place in your boiler?
In a boiler, convection occurs when heated water or steam rises naturally due to its lower density, creating a convection current. This helps to transfer heat from the combustion gases to the circulating water or steam. The heated water or steam then moves towards the radiators or other heat transfer surfaces, releasing heat and cooling down to create a continuous cycle of convection.
How does convection occur in radiators?
Convection is defined in the related link. It requires molecular movement to carry the heat away. The exposed surface of a radiator is hot and in contact with air. The air molecules, when in contact with the surface, pick up heat energy and move away, carrying the heat with them -- hence, convection. =============================
Does convection work in sand?
no it does not.
What are the mechanisms of heat transfer which are necessary to consider while designing the car radiators?
There are three methods of heat transfer, conduction, convection and radiation. Of these, the two which are important are conduction and convection. Convection is the heat transfer method as cooler air passes between the fins of the radiator, and conduction is the transference of heat from the hot coolant to the metal fins.
how do liquid radiators work and please include the useful properties of the liquid they contain?
by turning it on :)
