Question

Look around the room you’re in right now. How could conduction, radiation, and/or convection make the room colder in winter and warmer in summer? (Hint: You are looking for sources of heat loss.)

How can the impact of each energy transfer mechanism be reduced?

select a example of each type of heat transer and find out how thag would apply to your room?

Answer 1

In a room, the temperature regulation depends on various factor like the wall it is made of ( wood, or brick), vandilation (windows and exhaust), heating source inside the room liked heater, AC or stove etc.

Every heat transfer takes place by only three methods:

1. Conduction is heat transfer through stationary matter by physical contact. (The matter is stationary on a macroscopic scale—we know that thermal motion of the atoms and molecules occurs at any temperature above absolute zero.) Heat transferred from the burner of a stove through the bottom of a pan to food in the pan is transferred by conduction. Example - Brick walls retains heat more easily than a wood wall. Some materials conduct thermal energy faster than others. So, having a tile floor makes the floor cooler with respect to wooden floor. A second quantity that affects the conduction rate is the thickness of the material through which heat transfers. Thicker is the wall slower is the process of conduction.
2. Convection is the heat transfer by the macroscopic movement of a fluid. This type of transfer takes place in a forced-air furnace and in weather systems, for example. In free or natural convection, the flow is driven by buoyant forces: hot fluid rises and cold fluid sinks because density decreases as temperature increases. The house is kept warm by natural convection. Having a window or exhaust in the house regulated the air flow and makes it warm in summer and cooler in winter.
3. Heat transfer by radiation occurs when microwaves, infrared radiation, visible light, or another form of electromagnetic radiation is emitted or absorbed. An obvious example is the warming of Earth by the Sun. A less obvious example is thermal radiation from the human body.  the Sun warms us without any possibility of heat transfer by convection or conduction during the summer while in winter the radiation is less prominant and our room is much colder.