In which methods of heat transfer, gravity does not play any part?
According to thermodynamic systems, heat transfer is defined as the movement of heat across the border of the system due to a difference in temperature between the system and its surroundings. Heat can travel from one place to another in several ways. The different modes of heat transfer include:
Gravity does not play any part in radiation and conduction because in both these processes heat is transferred without any motion of the medium particles.