Zookal Homework Help

Homework Help

  1. Engineering
  2. Mechanical Engineering
  3. exposure to high concentration of gaseous ammonia can cause lung...

Question: exposure to high concentration of gaseous ammonia can cause lung...

Question details

Exposure to high concentration of gaseous ammonia can cause lung damage. To prevent gaseous ammonia from leaking out, ammonia is transported in its liquid state through a pipe (k-25 W/m-K. Di = 0.034 m, Do-0.04 m, and L = 10 m). Since liquid ammonia has a normal boiling point of-333°C, the pipe needs to be properly insulated to prevent the surrounding heat from causing the ammonia to boil. The pipe is situated in a laboratory, where the average ambient air temperature is 20°C. The convection heat transfer coefficients of the liquid ammonia and the ambient air are 100 W/m2-K and 20 W/m2-K, respectively. Determine the insulation thickness for the pipe using a material with k = 0.75 W/mK to keep the liquid ammonia flowing at an average temperature of-35°C, while maintaining the insulated pipe outer surface temperature at 10°C The insulation thickness for the pipe iscm

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution