Conduction
If you are asking about a box filled with a gas, then heat transfer can modeled as conduction through a solid. The requirement would have to be no fluid flow (obviously there is movement at the micro level), and the conductive heat transfer coefficient would be very low.Convection heat transfer is dependent on that conductive heat transfer coefficient of the liquid and is based on something called the Nusselt number.If you are asking about heat transfer through a completely void space, then heat would travel by means of radiation.
transfer of heat through open space is radiation
Convection is "the transfer of heat through the motion of molecules in a fluid."
draughts transfer heat energy through convection
The transfer of heat energy through empty space is called radiation.
Radiation
Convection - heat transfer through liquids.Conduction - heat transfer through solids.Radiation - heat transfer through vacuum.
If you are asking about a box filled with a gas, then heat transfer can modeled as conduction through a solid. The requirement would have to be no fluid flow (obviously there is movement at the micro level), and the conductive heat transfer coefficient would be very low.Convection heat transfer is dependent on that conductive heat transfer coefficient of the liquid and is based on something called the Nusselt number.If you are asking about heat transfer through a completely void space, then heat would travel by means of radiation.
transfer of heat through open space is radiation
Convection is "the transfer of heat through the motion of molecules in a fluid."
There are three methods by which substances absorb heat. These are conduction, or heat transfer through contact, convection, or heat transfer through fluid motion, and radiation, or heat transfer through electromagnetic radiation.
draughts transfer heat energy through convection
Heat can be transferred in 3 ways: Conduction, or through direct contact, Convection, or transfer of heat through a fluid, or Radiation, or heat transfer through space in the form of electromagnetic waves.
No,the transfer of heat by the movement of heated fluid is called convection.
The transfer of heat through direct contact is called conduction.
draughts transfer heat energy through convection
Heat can transfer through a fluid by conduction and/or convection (with convection being the most efficient). If the fluid is a gas then heat can also transfer through it by radiation (but this does not work in liquid fluids).