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• What is the energy content (enthalpy) of steam at 300° F and 30 psia? Solution
  
  
• How much energy is required to boil off a gallon (8.34 lbms) of saturated water at atmospheric pressure? Solution
  

• What is the conduction heat transfer through a simple brick wall, L=4 inches, with conductivity k=0.4, when the outside temperature is 15°F and the inside surface temperature is 70°F? Solution
  
  
• What is the conduction heat transfer through 100 ft² of the wall in example 1, if in addition there is a 20 ft² window included in the wall? Glass thickness = 1/8 inch, glass conductivity = 0.5 Btu / hr-ft-F. Solution
  

• Estimate the convection heat transfer from a vertical wall at 60°F, with a wind blowing 15 mph. Air temperature is 30°F. Solution
  
  
• Estimate heat loss through a brick building wall, taking account of both conduction through the brick and outside surface heat transfer. Conditions: Interior surface temperature 70°F. Wall thickness 4 inches; brick conductivity k=0.4 Btu/hr-ft-F. Air temperature is 15°F, with a 10 mph wind blowing. Solution
  

• What is the temperature rise of liquid water flowing at 4 gpm being used to remove 24,000 btu/hr? Solution

• A steel pipe passes through a room with wall temperature at 70°F. Calculate the radiant heat transfer from the pipe to the surroundings for the following cases, and compare it to the approximate natural convective heat transfer (h = 1 Btu / hr-ft2-F ). Use Fe = 0.5. Solution

• How many lbm/hr of condensing steam must be used to supply 120,000 Btu/hr to a system being maintained at 100°F? Compare the answer to using liquid water supplied at 150°F. Solution