Asked by: Gorane Alor
science geology

What is convective circulation?

Last Updated: 5th April, 2020

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convection circulation. In a hot-water heating system, the movement of water through the pipes as a result of gravity which causes the lighter, warm water in the system to rise, and the cool water to fall.

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Regarding this, what is convective flow?

Convective transport (convective flow, bulk flow, convection) may refer to either heat or mass transfer. In the context of membranes, convective flow refers to the transport of fluid (pure solvent or solution) across a porous membrane, which is driven by the applied pressure.

One may also ask, what is a convection current and what causes it? Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.

Herein, what is convection with example?

Everyday Examples of Convection Boiling water - The heat passes from the burner into the pot, heating the water at the bottom. Ice melting - Heat moves to the ice from the air. This causes the melting from a solid to liquid. Hot air balloon - A heater inside the balloon heats the air and so the air moves upward.

What does a convection current look like?

Convection currents form because a heated fluid expands, becoming less dense. The less-dense heated fluid rises away from the heat source. As it rises, it pulls cooler fluid down to replace it. This fluid in turn is heated, rises and pulls down more cool fluid.

Related Question Answers

Dylan Herman

Professional

What are three types of convection?

Because of convection! There are three types of heat transfer: conduction, convection and radiation. Convection is a type of heat transfer that can only happen in liquids and gases, because it involves those liquids or gases physically moving.

Areta Sanfilippo

Professional

What are the types of convection?

There are two types of convection: natural convection and forced convection. Natural convection is produced by density differences in a fluid due to temperature differences (e.g., as in “hot air rises”). Global atmospheric circulation and local weather phenomena (including wind) are due to convective heat transfer.

Lucrezia Sfetcu

Professional

What is convection in simple words?

convection. Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down.

Beryl Siegli

Explainer

What is the application of convection?

Everyday Examples of Convection
Steaming cup of hot tea - The steam is showing heat being transfered into the air. Ice melting - Heat moves to the ice from the air. This causes the melting from a solid to liquid. Hot air balloon - A heater inside the balloon heats the air and so the air moves upward.

Seye Po├žas

Explainer

What is difference between convection and advection?

Convection is the movement of a fluid, typically in response to heat. Advection is the movement of some material dissolved or suspended in the fluid. If you have silt suspended in the water and heat it then you will get convection of the water and advection of the silt.

Nouaman Varnier

Explainer

What is convection in science for kids?

Convection is a way in which heat travels. It occurs when heat is transferred by the movement of liquids or gases. The other methods of heat transfer are conduction and radiation. Natural convection occurs when fluids are heated. When the fluid molecules are heated, the fluid becomes larger and lighter.

Baljinder Kannicht

Pundit

How do convection currents occur?

Convection currents occur when a reservoir of fluid is heated at the bottom, and allowed to cool at the top.. Heat causes the fluid to expand, decreasing its density. If there is cooler material on top, it will be more compact and therefore, will sink to the bottom. The heated material will rise to the top.

Lissa Wouters

Pundit

Where does convection occur in the earth?

Convection currents in the Earth occur in the mantle. The core of the Earth is extremely hot, and material in the mantle close to the core is heated

Ismaela Neary

Pundit

What are 3 examples of conduction?

Everyday Examples of Heat or Thermal Conduction
  • After a car is turned on, the engine becomes hot.
  • A radiator is a good example of conduction.
  • You can warm your back muscles with a heating pad.
  • Roasting wieners over a campfire is fun until the heat from the fire is conducted up the coat hanger to your hand.

Golam Marjorie

Pundit

What is the principle of convection?

Convection occurs when heat is carried away from your body via moving air. If the surrounding air is cooler than your skin, the air will absorb your heat and rise. As the warmed air rises around you, cooler air moves in to take its place and absorb more of your warmth.

Chere Uckman

Pundit

What are 4 examples of conduction?

Some examples are:
  • Conduction: Touching a stove and being burned. Ice cooling down your hand.
  • Convection: Hot air rising, cooling, and falling (convection currents)
  • Radiation: Heat from the sun warming your face.

Clemmie Tocu

Teacher

What is the difference between conduction and convection?

Conduction usually occurs in solids, through molecular collision. Convection occurs in fluids by mass motion of molecules in the same direction. The transfer of heat is through heated solid substance, in conduction, whereas in convection the heat energy is transmitted by way of intermediate medium.

Carole Lener

Teacher

What are some examples of convection currents?

13 Examples Of Convection In Everyday Life
  • Breeze. The formation of sea and land breeze form the classic examples of convection.
  • Boiling Water. Convection comes into play while boiling water.
  • Blood Circulation in Warm-Blooded Mammals.
  • Air-Conditioner.
  • Radiator.
  • Refrigerator.
  • Hot Air Popper.
  • Hot Air Balloon.

Aser Cancelinha

Teacher

Which are examples of convection currents?

Examples of Convection Currents and Energy Scale
  • You can observe convection currents in water boiling in a pot.
  • A simple example of convection currents is warm air rising toward the ceiling or attic of a house.
  • Wind is an example of a convection current.
  • Combustion generates convection currents.

Rosemarie Encore Moi

Teacher

How are convection currents important to the earth?

Explanation: Convections currents in the earth's mantle are thought to be the driving force of plate tectonics. Where the hot magma is brought near the surface by the convection currents a divergent boundary is created. The divergent boundaries form new oceans and widen existing oceans.

Shery Centeno

Reviewer

What is the process of convection in the mantle?

Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface. Accretion occurs as mantle is added to the growing edges of a plate, associated with seafloor spreading.

Major Omil

Reviewer

What is the mantle made of?

Above the core is Earth's mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals. The rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium.

Elisio Castel

Reviewer

How do convection currents cause wind?

All wind is caused by the uneven heating of Earth's surface, which sets convection currents in motion. Convection currents on a large scale cause global winds; convection currents on a small scale cause local winds.

Alan Hotimsky

Reviewer

How do convection currents drive plate tectonics?

Convection currents in the magma drive plate tectonics. Large convection currents in the aesthenosphere transfer heat to the surface, where plumes of less dense magma break apart the plates at the spreading centers, creating divergent plate boundaries.