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Cooling mechanism on human body
Started by: garcot at March 31 2008

Replies: 3 & Views: 1124    Font    Page 1 of 1            Reply

   
Cooling mechanism on human body By: garcot
Bangalore
  
March 31 2008
This is an active graphic.

This is a simplified model of the process by which the human body gives off heat. Even when inactive, an adult male must lose heat at a rate of about 90 watts as a result of his basal metabolism. One implication of the model is that radiation is the most important heat transfer mechanism at ordinary room temperatures. This model indicates that an unclothed person at rest in a room temperature of 23 Celsius or 73 Fahrenheit would be uncomfortably cool. Select one of the cooling mechanisms for further details about how the model numbers were obtained. The skin temperature of 34 C is a typical skin temperature taken from physiology texts, compared to the normal core body temperature of 37 C.

For complete details please visit the referenced site:

Reference: http://hyperphysics.phy-astr.gsu.edu/Hbase/thermo/coobod.html#c1.

Rgds
Garcot

"wisdom in your body is deeper than your deepest philosophy"(Nietszche)

Re: Cooling mechanism on human body By: garcot
Bangalore
  
March 31 2008
another scenario:

Even when inactive, an adult male must lose heat at a rate of about 90 watts as a result of his basal metabolism. This becomes a problem when the ambient temperature is above body temperature, because all three standard heat transfer mechanisms work against this heat loss by transferring heat into the body. Our ability to exist in such conditions comes from the efficiency of cooling by the evaporation of perspiration. At a temperature of 45 Celsius or 113 Fahrenheit the evaporation process must overcome the transfer of heat into the body and give off enough heat to accomplish a 90 watt net outward flowrate of energy. Because of the body's temperature regulation mechanisms, the skin temperature would be expected to rise to 37C at which point perspiration is initiated and increases until the evaporation cooling is sufficient to hold the skin at 37C if possible. With those assumptions about the temperatures, the Stefan-Boltzmann law for an area of 2 m2 and emissivity 0.97 gives a net input power of 109 watts to the body. The perspiration cooling must overcome that and produce the net outflow of 90 watts for equilibrium.

Reference: http://hyperphysics.phy-astr.gsu.edu/Hbase/thermo/coobod.html#c1

Garcot

"wisdom in your body is deeper than your deepest philosophy"(Nietszche)

Re: Cooling mechanism on human body By: garcot
Bangalore
  
April 3 2008
Considering the 1st scenario,
I find it difficult to understand the behaviour of many people, especially children, who inspite of being chilly, do not like being covered.

Is it because, these people have higher body heat to be dissipated? or is it a problem with the body metabolism? or is it the disturbed mind during sleep, whose perception during sleep is corrupted?

Infact, I have seen many problems related to stomach and abdomen, create a kind of discomfort, which is very difficult neglect. Another is the headache. They may be both connected in some way too.

What would be the possible remedies which will cover the above scenarios?
Are the above symptoms enough to prescribe the right homeopathic medicine?

Can someone explain and suggest.

Thanks
Garcot

"wisdom in your body is deeper than your deepest philosophy"(Nietszche)

Re: Cooling mechanism on human body By: garcot
Bangalore
  
April 3 2008
Considering the 1st scenario,
I find it difficult to understand the behaviour of many people, especially children, who inspite of being chilly, do not like being covered.

Is it because, these people have higher body heat to be dissipated? or is it a problem with the body metabolism? or is it the disturbed mind during sleep, whose perception during sleep is corrupted?

Infact, I have seen many problems related to stomach and abdomen, create a kind of discomfort, which is very difficult neglect. Another is the headache. They may be both connected in some way too.

What would be the possible remedies which will cover the above scenarios?
Are the above symptoms enough to prescribe the right homeopathic medicine?

Can someone explain and suggest.

Thanks
Garcot

"wisdom in your body is deeper than your deepest philosophy"(Nietszche)

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