Answer to Question 1
Stack temperature - ambient temperature = net stack temperature
Answer to Question 2
The heat required to increase the temperature of 5 pounds of ice from 10F to
32F is calculated using the specific heat formula:
BTUs = pounds x F T x specific heat capacity in BTU per pound.
BTUs=5 lb x 22 x 0.5 = 55 BTUs
The heat required to melt 5 pounds of ice is calculated using the latent heat
formula:
BTU = weight x latent heat factor
BTU= 5 x 144 = 720 BTUs
The heat required to increase the temperature of 5 pounds of water from 32F
to 212F is calculated using the specific heat formula:
BTUs = pounds x F T x specific heat capacity in BTU per pound.
BTUs=10 lb x 180 x 1 = 1800 BTUs
The heat required to boil 5 pounds of water is calculated using the latent heat
formula:
BTU = weight x latent heat factor BTU= 5 x 970 = 4850 BTUs
The heat required to increase the temperature of a pound of steam from 212F to 242F is calculated using the specific heat formula:
BTUs = pounds x F T x specific heat capacity in BTU per pound. BTUs=5 lb x 30 x 0.5 = 75 BTUs
Finally, sum the results
55 BTUs + 720 BTUs + 1800 BTUs + 4850 BTUs + 75 BTUs = 7500 BTU
Body temperature and environmental temperature in homeotherms versus heterotherms.
Advantages and disadvantages of select temperature measurement sites
Average Global Temperature Rise over the Past Century
The relationship between RH and temperature.
Observed change in surface temperature from 1901 to 2012
Water Helps Regulate Your Body Temperature