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What type of heat transfer is affected by the colour of surfaces?
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Why heat transfer is increased in dimple surfaces?
Theory: Dimpled surfaces have a larger surface area.
What do conduction convection and radiation mean?
conduction is the transfer of heat between two surfaces in contact with each other convection is the transfer of heat into a moving fluid radiation is the transfer of heat via electromagnetic waves
How heat transfer in solid is affected?
how to calculate the radius of a cylinder
The surfaces of a dewar flask are silvered for the purpose of minimizing heat transfer by what process?
Radiation
How does silver coating on surfaces of glass walls minimise heat transfer?
being a poor radiator,the two silver faces reflects heat back and forth and reduce heat by radiation.
Why heat transfer is increased in dimple surfaces?
Theory: Dimpled surfaces have a larger surface area.
How does heat escape through walls?
Heat inside a building warms the wall surface by convection,(the transfer of heat by fluid motion), the heat then travels through the wall by conduction (molecule by molecule heat transfer), the outer surface of the wall then gives off heat to the atmosphere again by convection. The rate of heat transfer through the wall is affected by two things: the number of films (surfaces, or boundaries) it must pass through, the more films the slower the transfer. And secondly the u factor, or insulation properties of the materials through which the heat travels.Heat inside a building warms the wall surface by convection,(the transfer of heat by fluid motion), the heat then travels through the wall by conduction (molecule by molecule heat transfer), the outer surface of the wall then gives off heat to the atmosphere again by convection. The rate of heat transfer through the wall is affected by two things: the number of films (surfaces, or boundaries) it must pass through, the more films the slower the transfer. And secondly the u factor, or insulation properties of the materials through which the heat travels.Read more: How_does_heat_escape_through_walls
What do conduction convection and radiation mean?
conduction is the transfer of heat between two surfaces in contact with each other convection is the transfer of heat into a moving fluid radiation is the transfer of heat via electromagnetic waves
How heat transfer in solid is affected?
how to calculate the radius of a cylinder
What processes of heat transfer are affected with thermos flasks?
Conduction, convection and heat radiation.
The surfaces of a dewar flask are silvered for the purpose of minimizing heat transfer by what process?
Radiation
How heat can be lost through walls?
Heat inside a building warms the wall surface by convection,(the transfer of heat by fluid motion), the heat then travels through the wall by conduction (molecule by molecule heat transfer), the outer surface of the wall then gives off heat to the atmosphere again by convection. The rate of heat transfer through the wall is affected by two things: the number of films (surfaces, or boundaries) it must pass through, the more films the slower the transfer. And secondly the u factor, or insulation properties of the materials through which the heat travels.Read more: How_does_heat_escape_through_walls
How does a wall loose heat?
Heat inside a building warms the wall surface by convection,(the transfer of heat by fluid motion), the heat then travels through the wall by conduction (molecule by molecule heat transfer), the outer surface of the wall then gives off heat to the atmosphere again by convection. The rate of heat transfer through the wall is affected by two things: the number of films (surfaces, or boundaries) it must pass through, the more films the slower the transfer. And secondly the u factor, or insulation properties of the materials through which the heat travels.Read more: How_does_heat_escape_through_walls
How can is heat be lost through walls?
Heat inside a building warms the wall surface by convection,(the transfer of heat by fluid motion), the heat then travels through the wall by conduction (molecule by molecule heat transfer), the outer surface of the wall then gives off heat to the atmosphere again by convection. The rate of heat transfer through the wall is affected by two things: the number of films (surfaces, or boundaries) it must pass through, the more films the slower the transfer. And secondly the u factor, or insulation properties of the materials through which the heat travels.Read more: How_does_heat_escape_through_walls
What on earth in transfer printing?
transfer printing is where you colour a paper and transfer your pattern onto a piece of fabric using a heat press. :)
What is the emissivity of black body?
Emissivity of the black body is 1. And this is probably the reason that the condenser of refrigerator is painted black to loose heat efficiently by radiation ,though there are other modes of heat transfer like conduction and convection which is not affected by colour of the body
Removing floor wax rings from surfaces?
strip the wax and rewax, or apply mild heat and rebuff the affected area.
