Engineering, 17.06.2020 23:57 rodriguezbrian050702
A power cycle operating between two reservoirs receives energy QH by heat transfer from a hot reservoir at temperature TH = 2000 K and rejects energy QL by heat transfer to a cold reservoir at TL= 400 K. For each of the following cases determine whether the cycle operates reversibly, irreversibly, or is impossible:(a) QH = 1100 kJ, Wcycle = 900 kJ.(b) QH = 1000 kJ, QL = 200 kJ.(c) Wcycle = 1400 kJ, QL = 600 kJ.(d) ? = 50%
Answers: 3
Another question on Engineering
Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
Answers: 2
Engineering, 04.07.2019 18:10
Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.
Answers: 3
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
You know the right answer?
A power cycle operating between two reservoirs receives energy QH by heat transfer from a hot reserv...
Questions
