Nuclear weapon like atomic bombs use the nuclear energy to explode and cause mass destruction. Nuclear submarine uses nuclear reactors for generating electricity that power the electric motors the heat generated in this process produces steam that helps in the movement of the turbines.
How can energy transfer be reduced in homes?
Energy is transferred from warm homes to the outside by: conduction through the walls, floor, roof and windows.
There are some simple ways to reduce energy transfers from a house, including fitting:
- carpets and curtains.
- reflective foil on the inside walls.
- double glazing.
How can we reduce energy transfer?
Reducing the friction between two surfaces can reduce this unwanted energy transfer. Friction is sometimes reduced by placing rollers or ball bearings between the surfaces but, most often, oil is used to lubricate the surfaces and allow them to slide smoothly over each other.
What materials can reduce convection?
Insulators are materials designed to reduce the flow of energy by limiting conduction, convection, or both. Radiant barriers reduce the loss of energy by radiation. These materials help warm spaces remain warm and cold spaces remain cold.
How can you reduce the transfer of thermal energy in everyday life?
In winter, we wear thick clothes to keep ourselves warm. Heat loss from our body to the environment is reduced by our clothing. Vacuum flasks and thermal cookers also reduce heat loss to keep their contents hot.
Where is most heat loss in a house?
Take a look at this thermogram of a house. The roof and windows are the hottest, showing that most heat is lost from the house through those parts. Heat energy is transferred from homes by conduction through the walls, floor, roof and windows. It is also transferred from homes by convection .
What are 4 ways energy can be transferred?
There are 4 ways energy can be transferred;
- Mechanically – By the action of a force.
- Electrically – By an electrical current.
- By radiation – By Light waves or Sound waves.
- By heating – By conduction, convection or radiation.
How do you increase energy transfer?
This can be achieved by reducing wasted energy transfers so more of the input energy is usefully transferred. Mechanical devices can be made more efficient through lubrication to reduce the friction between moving parts of a machine and increase the amount of useful energy transferred.
How can we stop convection?
Convection happens when air moves around, carrying heat from one place to another. So in order to stop convection from happening, you just have to get the air to stay still. Warm air will rise relative to cold air even when nothing else is moving it, so keeping air still is not so easy to do.
How do I stop heat escaping from my house?
Ten tips for a warm house
- Use heavy curtains to stop heat escaping from your windows. …
- Install insulation in your house (or top up old and thinning insulation) …
- Seal up gaps and cracks that let the cold air in. …
- Install pelmets on top of your windows. …
- Watch the temperature. …
- Close off any rooms that are not in use. …
- Let it shine!