 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
• |
As
air flow increases, convective heat loss from
|
|
|
|
skin
increases- windchill
|
|
|
• |
Evaporation
|
|
|
• |
Predominant
heat loss from skin in cold
|
|
|
|
environments
is radiation
|
|
|
|
– |
Nude,
with skin temp 31C, radiates 116 Watts to room
|
|
|
with
walls of 21C
|
|
|
|
– |
At
rest, total heat production is 84 Watts
|
|
|
|
– |
Better
put some clothes on
|
|