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Exercise:
An ideal air conditioner keeps the temperature inside a room at celsius when the outside temperature is celsius. If .kW of power enters a room through the windows in the form of direct radiation from the Sun how much electrical power would be saved if the windows were shaded so that the amount of radiation were reduced to W?

Solution:
The efficency of power of this ideal air conditioner is epsilon fracT_LT_H-T_L . since we cool. The remove W heat out of the room the electrical power P fracP_Hepsilon fracT_H-T_LT_L P_H W is necessary. If through shading only W need to be removed the electrical power necessary drops to P' fracPepsilon fracT_H-T_Lepsilon T_L P_H fracW. W. Hence W could be safed.
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Exercise:
An ideal air conditioner keeps the temperature inside a room at celsius when the outside temperature is celsius. If .kW of power enters a room through the windows in the form of direct radiation from the Sun how much electrical power would be saved if the windows were shaded so that the amount of radiation were reduced to W?

Solution:
The efficency of power of this ideal air conditioner is epsilon fracT_LT_H-T_L . since we cool. The remove W heat out of the room the electrical power P fracP_Hepsilon fracT_H-T_LT_L P_H W is necessary. If through shading only W need to be removed the electrical power necessary drops to P' fracPepsilon fracT_H-T_Lepsilon T_L P_H fracW. W. Hence W could be safed.
Contained in these collections:

Attributes & Decorations
Branches
Temperatur & Heat
Tags
air, conditioner, efficiency, engine, heat, heatengine, laws, of, physics, pump, thermodynamics
Content image
Difficulty
(3, default)
Points
3 (default)
Language
ENG (English)
Type
Calculative / Quantity
Creator uz
Decoration
File
Link