Engineering, 11.07.2019 01:30, maxzavala364

Hydrogen at 15 bar, 450°c enters a turbine and expands to 2 bar, 160°c with a mass flow rate of 0.2 kg/s. the turbine operates at steady state with negligible heat transfer with its surroundings. assuming an ideal gas model, constant specific heats, with k = 1.37 and neglecting kinetic and potential energies, determine (a) the isentropic turbine efficiency (b) the exergetic turbine efficiency let t0 = 25 °f, p0 = 1 atm. round your answers to 3 significant digits.

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, danksans7011

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Answers: 1

continue

Engineering, 04.07.2019 18:10, hadellolo8839

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Answers: 3

continue

Engineering, 04.07.2019 18:10, lowkeyqueenk

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Answers: 1

continue

Engineering, 04.07.2019 18:10, redrosesxx

Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux

Answers: 3

continue

Do you know the correct answer?

Hydrogen at 15 bar, 450°c enters a turbine and expands to 2 bar, 160°c with a mass flow rate of 0.2...