Answered: 7 Calculate the efficiency of the power…

7 Calculate the efficiency of the power cycle (a Rankine cycle), shown in Fig. 6.21, if P4 = 20 kPa, P₁ = P₂=4 MPa, and T₂ = 600°C. Steam T Turbine Pump Condenser Fig. 6.21

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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part 1 of 2 A Carnot engine has a power output of 72 kW. The engine operates between two reservoirs at 20°C and 286°C. How much thermal energy is absorbed each hour? Answer in units of J. part 2 of 2 How much thermal energy is lost per hour? Answer in units of J. Y Yo i
Consider a heat engine with a cycle described by the figure, with the volume and pressure at points A, B, C, and D given below. VA = 0.95 × 10-3 m3VB = 3.5 × 10-3 m3PA = 2.65 × 106 N/m2PB = 2.37 × 106 N/m2PC = 0.75 × 106 N/m2PD = 1.29 × 106 N/m2 a)Calculate the net work output, in joules, of the heat engine following path ABCDA.
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A steam power plant operates on the reheat Rankine cycle. as shown in the schematic diagram (Fig. Q 2). Steam enters the high-pressure turbine at 12.5MPa and 550o C at a rate of 7.7 kg/s and leaves at 2 MPa. Steam is then reheated at constant pressure to 450o C before it expands in the low-pressure turbine. The isentropic efficiencies of the turbine and the pump are 85% and 90%, respectively. Steam leaves the condenser as a saturated liquid. If the moisture content of the steam at the exit of the turbine is not to exceed 5%, then make all the necessary assumptions and determine(a) the condenser pressure,(b) the net power output, and(c) the thermal efficiency.Draw an accurate T-s diagram of the cycle and label all the property values on this diagram. ans also comment on answer
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