Convection.
Heat transfer by Brownian motion takes place only in fluids (liquids, gases, and plasmas).
Heat conduction (or thermal conduction) is the transfer of internal energy by microscopic diffusion and collisions of particles or quasi-particles within a body due to a temperature gradient.Convective heat transfer, often referred to simply as convection, is the transfer of heat from one place to another by the movement of fluids. Convection is usually the dominant form of heat transfer in liquids and gases. Although often discussed as a distinct method of heat transfer, convective heat transfer involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow).So heat must travel by diffusion, movement of fluids, or both; concerning conduction and convection.
Energy transfer takes place by convection (the movement of hot air or other fluids due to diferences in densiity), conduction (transfer of heat through contact - caused by collisions between adjacent particles), or radiation (the transfer of energy by electromagnetic waves such as light or infra-red rays).Radiation requires matter to create and absorb the EM waves, (i.e. you need a hot object to give off the IR waves) but the waves themselves can travel through a vacuum, so do not require matter to transfer energy.
convection
CONVECTION
Wrong, transfer of heat by conduction does take place in fluids.
Wrong, transfer of heat does take place in fluids. In fact it can take place more efficiently in fluids than in solids because convection is possible in fluids.
It is the process of transfer of heat from one place to other with actual movement of heated particles. Convention of heat take place in fluids and gases .
Mode of energy transfer in fluids is convection.
Heat transfer by Brownian motion takes place only in fluids (liquids, gases, and plasmas).
Heat conduction (or thermal conduction) is the transfer of internal energy by microscopic diffusion and collisions of particles or quasi-particles within a body due to a temperature gradient.Convective heat transfer, often referred to simply as convection, is the transfer of heat from one place to another by the movement of fluids. Convection is usually the dominant form of heat transfer in liquids and gases. Although often discussed as a distinct method of heat transfer, convective heat transfer involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow).So heat must travel by diffusion, movement of fluids, or both; concerning conduction and convection.
Energy transfer takes place by convection (the movement of hot air or other fluids due to diferences in densiity), conduction (transfer of heat through contact - caused by collisions between adjacent particles), or radiation (the transfer of energy by electromagnetic waves such as light or infra-red rays).Radiation requires matter to create and absorb the EM waves, (i.e. you need a hot object to give off the IR waves) but the waves themselves can travel through a vacuum, so do not require matter to transfer energy.
convection
CONVECTION
Conduction - Process of heat transfer through a medium or material without any movement of the medium or material. Convection - transfer of heat from one place to another through the movement of fluids. A fluid with a given density rises within a fluid of greater density and sinks within in a fluid of smaller density. Radiation - transfer of heat, in the form of waves from one place to another without a medium.
It sounds like commerce.
In solids, heat is transferred by conduction, the movement (vibration) of molecules. Heat transfer from solids to liquids and gases takes place through convection, or the movement of fluids at the surface. Radiation heat transfer can occur without a medium.