Answer:
Explain any five applications of computer modeling in beams.
Explanation:
Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. Consider a room whose air temperature is maintained at 24ºC throughout the year, while the walls of the room are nominally at 26°C and 16°C in the summer and winter, respectively. The exposed surface of a person in the room may be assumed to be at a temperature of 32°C throughout the year and to have an emissivity of 0.90. The coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 W/m2·K.
Answer:
Hello your question is incomplete below is the missing part of your question
Determine Heat flux due to convection
answer : 16 w/m^2
Explanation:
Room temperature = 24°c
Room temperature during summer = 26°c
Room temperature during winter = 16°c
surface temp of person = 32°C
emissivity = 0.90
coefficient ( h ) = 2 W/m2.K
Determine Heat flux due to convection
Q" = h ( Δ T ) = coefficient * ( surface temp of person - room temperature )
= 2 * ( 32 - 24 ) = 16 w/m^2