Engineering, 17.07.2020 19:01 christopherschool04
Steam at 550 lbf/in.2, 700°F enters a turbine operating at steady state and exits at 1 lbf/in.2 The turbine produces 500 hp. For the turbine, heat transfer is negligible as are kinetic and potential energy effects. (a) Determine the quality of the steam at the turbine exit, the mass flow rate, in lb/s, and the entropy production rate, in Btu/s · °R, if the turbine operates without internal irreversibilities. Determine the mass flow rate, in lb/s, and the entropy production rate, in Btu/s · °R, if the quality of the steam at the turbine exit is equal to 1.
Answers: 1
Engineering, 03.07.2019 15:10
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Engineering, 04.07.2019 18:20
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Engineering, 04.07.2019 19:10
Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?
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Engineering, 04.07.2019 19:10
With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.
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Steam at 550 lbf/in.2, 700°F enters a turbine operating at steady state and exits at 1 lbf/in.2 The...
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