Heat loss occurs through windows by the following processes: (1) ventilation around edges; (2) through the frame, particularly if it's metal; (3) through the glass panes; and (4) radiation. a. For the first three, what is/are the mechanism(s): conduction, convection, or radiation
Through the frame ,particularly if its metal the heat loss mechanism is conduction.
Ventilation around edges the heat loss mechanism is Convection.
Through the glass panes the heat loss mechanism is Radiation.
Explanation:
Conduction is the transfer of heat energy from molecule to molecule by direct contact through a metal medium.In this case our window metal frames are usually made of metal cases.Heat will be lost easily as the metal frame can't absorb heat.
Convection is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.Ventilation,air and gas can be use inter-changeably in this sense.The presence of air serves as a medium in which heat transfer takes place.
Radiation is the transfer of electromagnetic radiation generated by the thermal motion of particles in matter. Glass panels are composed of molecules which do heat up on exposure to high temperature and this in turn emits heat from it's hot state called radiation.
Heat loss is a process by which the heat energy is radiated or spread in different directions and displaces away.
Heat flow through a hotter object to a colder object and includes the various methods of conduction, convection, and radiation. Like the heat energy of the sun reaching the earth.
The heat which is built inside the room due to its temperature is ventilated by the windows, ventilators, the metal frames, and through the glass panes. Hence the 1, 2, and 3 are correct.
Learn more about the through windows by the following processes.
