What Uses the Most Energy in Your Home?
Home cooling and heating uses maximum energy 45 %
my Question?
why not use the cold just 2000 feet upwards for cooling
once while travelling by plane at a height of about 2 miles i saw
sombody reflecting sunlight through a mirror at the plane.immediately
a thought came to my mind why cant we reflect the below zero temperature down?
since i am not an expert in this field i started thinking..
how to transmit that cold down to earth?
may be a down draft?i thought?
may be just reflect it down to earth,same as using a mirror
to reflect sunlight up?
may be use something to convert the cold of a height
into some micro/radio wave?
may be send a balloon up for that
may be use a satellite for that
may be ..so many foolish ideas came
on search i found:-
Logical Explanation :
Coldness(Here it is Some form of energy like heat energy which can be transferred between bodies) can be assumed as opposite of heat energy. If 5 joules of heat energy is transferred from a hot body to a cold body, then it can be assumed that same amount of coldness is being transferred from cold body to hot body.
This can be related to Light and Darkness. How do we define or measure darkness ? Its nothing but absence (or opposite ) of light.
Theoretical Explanation :
Some kind of work needs to be done to transfer energy according to Second Law of Thermodynamics .In case of refrigerator or AC the room or storage space at lower temperature looses heat to the surrounding which is at higher temperature. For this Work needs to be done. Here we can see that coldness cannot be transferred from a cold body to a hot body without doing some work. This violates Second Law of Thermodynamics. Thus coldness cannot be transferred between two bodies.
No comments:
Post a Comment