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draw a set of diagrams to help explain this. (Use red arrows to show the direction of hot air blue arrows to show the direction of cold air.) Match up words to the meanings. Draw a line to join them up.
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∙ 11y ago
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Which process do air currents transfer heat energy throughout the room?
convection
How does a convection heater differ from similar types of heating units?
Convection heater use a process that involves "blowing" air across the heating element. Once this happens the air will absorb heat and then blown to heat the air in the room. These heaters are used mainly for heating smaller rooms in the home or offices, etc. They have thermostat in the units that sense when the desired heat temp. in the room has been reach the unit will shut off. The heater will also restart once the room temp. drops below desired temp.
How would you define heat transfer by convection?
Imagine you have a heater in a room. How does it heat the entire room when only the heater is hot? By convection! As the heater warms the air around it, this warm air travels upwards. When it hits the ceiling of the room, it travels outward towards the walls (pushed away from center by the rising column of air) By the time it reaches the walls it has cooled slightly and sinks (remember hot air is lighter and rises, while cool air is denser and sinks). It then travels along the floor of the room pushed by the sinking column of cooler air until it reaches the heater. Then the cycle starts again. This circular movement of heat is called convection and is h ow heat is normally transferred in gases and liquids. Solids most frequently use a process called conduction but that is another story!
Because of convection the warmest air in the room?
heat rises
How does convection and radiation heat a room?
Because the air closer to the heater heats up first. It then gets warmer and less dense and rises to the top of the room, which pushes down the cooler air that is already up at the top. Then that air warms up and rises to the top, pushing the cooler air down. This creates the Convection Current and that is how the room gets heated : )
Would a gas room heater be convection conduction or raidiation?
it would emit heat in the form of radiation. It will also heat the air which will cause convection. However, these heated gasses will be vented out of the flue so as not to contaminate the air in the room.
A heater is able to blow warm air that heats a room because of?
it's because of heat transfer into convection .
Which process do air currents transfer heat energy throughout the room?
convection
What is it called when a heater heats air then blows it across the room?
Convection
How does a convection heater differ from similar types of heating units?
Convection heater use a process that involves "blowing" air across the heating element. Once this happens the air will absorb heat and then blown to heat the air in the room. These heaters are used mainly for heating smaller rooms in the home or offices, etc. They have thermostat in the units that sense when the desired heat temp. in the room has been reach the unit will shut off. The heater will also restart once the room temp. drops below desired temp.
How does a kerosene heater heat?
A kerosene heater has a wick made of fiberglass that is connected to a kerosene tank. When the wick is lit, the kerosene keeps the wick burning, and a convection unit in the heater uses the flame to heat the air. In some kerosene heaters, there is a fan to blow the heated air into the room to heat it faster.
What is the difference between a regular heater and a radiant heater And where can radiant heaters be purchased from?
Radiant heaters heat objects nearby them such as furniture and are usually cheaper. Regular convection heaters actually heat the air temp in the room.
How would you define heat transfer by convection?
Imagine you have a heater in a room. How does it heat the entire room when only the heater is hot? By convection! As the heater warms the air around it, this warm air travels upwards. When it hits the ceiling of the room, it travels outward towards the walls (pushed away from center by the rising column of air) By the time it reaches the walls it has cooled slightly and sinks (remember hot air is lighter and rises, while cool air is denser and sinks). It then travels along the floor of the room pushed by the sinking column of cooler air until it reaches the heater. Then the cycle starts again. This circular movement of heat is called convection and is h ow heat is normally transferred in gases and liquids. Solids most frequently use a process called conduction but that is another story!
Because of convection the warmest air in the room?
heat rises
How does convection and radiation heat a room?
Because the air closer to the heater heats up first. It then gets warmer and less dense and rises to the top of the room, which pushes down the cooler air that is already up at the top. Then that air warms up and rises to the top, pushing the cooler air down. This creates the Convection Current and that is how the room gets heated : )
How does a convector heater function?
A convector heater works by using a heating element, usually electric, to warm up the air surrounding it. The warm air rises and creates convection currents, which circulate the heat throughout the room. As the cool air is drawn into the heater, it gets heated and rises, creating a continuous flow of warm air.
How does the Sunheat heater work?
The Sunheat Infrared heater is a portable heater in a wooden encasing. It has infrared heat tubes and copper. There is a fan which sucks the air from the room and pushes it into the heat chamber. The moisture in that air absorbs the infrared heat and it is pushed out into the room, warming the room.
