Water at 27 C flows with a mean velocity of 1 m/s through a 1-km-long pipe of 0.25-m inside diameter. (a) Determine the pressure drop over the pipe length and the corresponding pump power requirement, if the pipe surface is smooth. (b) If the pipe is made of cast iron and its surface is clean, determine the pressure drop and pump power requirement. (c) For the smooth pipe condition, generate a plot of pressure drop and pump power requirement for mean velocities in the range from 0.05 to 1.5 m/s
Systems Wednesday, March 9, 22:43 PM • System ○ Definition: a domain of investigation ○ Thermodynamic System: the collection of matter or region of space ○ To define a system, must also define the environment or surroundings ○ Zero mathematical thickness of a system ○ The boundary is shared by both system and surroundings ○ Properties vary continuously across the surface of the boundary § There is no jump in properties across the boundary ○ Types: § Isolated □ A system that doesn’t allow transfe
