What is a natural convection?

natural convection is a type of heat transfer where inhumane forces affect cooling and heating of fluids such as gases and liquids. Heat transfer creates a cycle called a convection current where the warm liquid is replaced by cooler. All fluids and mass are made of small building blocks called atoms that are joined into molecules. The movement of these molecules is what causes fluids to rise or decrease. This is unlike forced convection that works on the same principle, but has a heat source created by a person created by devices such as air or water fans that accelerate the heat transfer cycle. Forced and natural convections can be used for specific purposes such as heating houses or municipal water supply. For example, when the Sun warms the ground, the air on the ground is almost always warmer than the air higher in the sky. The heat expands the spaces between the molecules, so that the air is lighter and raises above the surface. As the air rises further from the hot ground, the molecules cool and compress. ThisColder and heavier air is then withdrawn by gravity, where it re -heats and the cycle begins.

ocean currents are also created due to natural convections, combined with wind changes and salt water density. The cold winds passing through the water surface cause molecules to compress and descend towards the floor of the ocean. When the water moves closer to the equator, it heats up and rises again. This creates massive ocean currents that flow along the continental coast and affect the weather in the surrounding areas of the soil.

is usually an important part of the convection is Newton's cooling law. This Scientific Act states that the rate at which the substance loses heat is directly related to the temperature of the building that operates on it. In other words, the cooler the object, the more heat loses the liquid. One example of this law in action is the effect of adding ice cubes to drinks - one cube takes only a small part of tEpla, but a handful cools the drink much faster.