For example, atmospheric circulation moves warm air to cool places, causing wind. conduction. The sun heats up both the sea surface and land. hplemmons. Gravity. When heat transfers from objects that are touching. Convection also plays an important role in various atmospheric phenomena. When heat transfers through the heater or AC in your house. Figures 1 and 2 schematically illustrate characteristic examples of free convection. You may have observed steam coming out of a cup of hot tea or coffee. Air-cooled Engine: Air-cooled engines are cooled by convection currents in their water pipes. Typical values of heat transfer coefficient . Examples of Conduction, Convection, and Radiation. When heat is transferred from objects like rays of light or electromagnetically. Convection Examples Sea breeze: This phenomenon occurs during the day. Wind, in turn, can enter and cool a room if the window is open. a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks. Such convection currents primarily move vertically and account for … The … PLAY. The following table charts of typical convective convection heat transfer coefficients for fluids and specific applications . The movement of the clouds, the ocean currents and many types of heaters are examples of … Spell. For example, convection currents transfer … Free-convective flows may be laminar and turbulent. Common examples of convection include the boiling of water where bubbles become visible at the top, drinking coffee where steam rises upwards, using a fan to cool off the body and heating a room during the cold season. Write. Convection currents in … Due to the heat of the fluid, the warm air rises up. STUDY. Stage 2 As the air rises it cools and water vapour condenses to form clouds. Created by. Examples of Convection Convection currents transfer thermal energy through many fluids, not just hot water in a pot. Touching a metal spoon that is sitting in a pot of boiling water. Stage 1. Convectional rainfall is very common in areas where the ground is heated by the hot sun, such as the Tropics. The movement of tectonic plates on the earth’s crust occurs because of the convection currents. The large masses of gases, liquids and solids can be moved via the circulating fluid of the convection current. Learn. As the sea has a... Land Breeze: This phenomenon occurs during the night when the situation reverses. Flow type (W/m 2 K) Forced convection; low speed flow of … Atmospheric convection currents can be set up by local heating effects such as solar radiation (heating and rising) or contact with cold surface masses (cooling and sinking). The simplest example of convection is a steaming beverage. This warm air is the steam. FIGURE 5.17 Examples of Convection Convection currents transfer thermal energy through many fluids, not just hot water in a pot. Test. When considering the mechanism of natural convection, first, the temperature of the outside of a hot object (kept in cold air) drops down. Other phenomena affected by convection currents include the production ocean currents and wind in the … Terms in this set (10) A pot sitting on a hot burner. A flow past a solid surface, the temperature of which is higher (lower) than that of the surrounding flowing medium, is the most widespread type of free convection. convection. Match. The sun heats the ground and warm air rises. Movement of air by a fan or of water by a pump are examples of forced convection. How the inside of a greenhouse works. Flashcards. For example, convection currents transfer thermal energy through molten rock below Earth’s surface, through water in the oceans, and through air in the atmosphere. Convection is the movement of heat because of the movement of warm matter . Examples of natural convection include cooling down a boiled egg when kept in the normal air, loss of cool of a cool drink can, etc.