Chapter 7, Problem 7.38CU

7.5 Equal molar amounts of carbon monoxide and neon are maintained at the same temperature and pressure. Which has the greater value for exergy relative to the same reference environment? Assume the ideal gas model with constant c, for each gas. There are no significant effects of motion and gravity.

a) Using the second law of thermodynamics, describe exergy d law of thermodynamics, describe exergy. Explain the different types of exergy b) What do you understand by the term reference environme c) Determine the specific exergy of saturated water vapour we having a velocity of 30m/s and an elevation of 6m, each relative to an exergy reference environment where T = 298K. P. = 1 atm and g = 9.8m/s.  d) Steam enters a turbine with a pressure of 30 bar, a temperature of 400°C, a velocity of 160 m/s and exits as saturated vapor at 100°C with a velocity of 100 m/s. At steady state, the turbine develops work at a rate of 540 kJ per kg of steam flowing through the turbine. The heat transfer rate (cv/m = -22.6 – Heat transfer between the turbine and its surroundings occurs at an average outer surface temperature of 350 K. Neglect the change in potential energy between the inlet and exit of the turbine, and assume that To = 25°C. Po =1 atm. Using a neat sketch, determine: i net exergy carried…

EXPLAIN THE THE DECREASE OF EXERGY PRINCIPLE AND EXERGY DESTRUCTION.