(a) A Steam power plant operates on a simple ideal Rankine eycle (Figure 2). Determine the thermal efficiency of this cycle when it is operated so that the liquid enters the pump as a saturated liquid. Boiker P- 6000 Pa O Te 0 C Pump Turbine P-50 kPa Condenser undund Figure 2

(a) A Steam power plant operates on a simple ideal Rankine eycle (Figure 2). Determine the thermal efficiency of this cycle when it is operated so that the liquid enters the pump as a saturated liquid. Boiker P- 6000 Pa O Te 0 C Pump Turbine P-50 kPa Condenser undund Figure 2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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1. Consider the following schematic of a power plant (operating in what is called a 'Rankine Cycle') Turbine Steam generator Condenser Coling water Economiaer The power plant control room reports that the plant is operating continuously at the following peak load conditions: a. Power to pump = 300KW b. Rate of steam flow = 25 kg/s c. Cooling water temperature at condenser inlet = 13 C d. Cooling water temperature at condenser outlet = 34 C Additionally, the following measurements were made at various points in the piping connecting the power plant components Data Pressure Temp. Quality enthalpy Specific Velocity (kJ/kg) point (kPa) volume (m/s) (m3/kg) (C) (x) 1 6200 2 6100 43 5900 177 ---- 4. 5700 493 ----- 5 5500 482 ----- 6 103 0.94 183 7 96 43 -----
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In a Refrigerant 11 system ,one evaporator is to provide 210 kw of refrigerant at 0 0C and another evaporator is to provide 224 kw at -200C . The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 400C . Given that, h2=389kJ/kg, h4=416kJ/kg Compute the following: a.) mass flow rate at low stage compressor (m1)ANSWER: 1.25377 kg/s b.) mass flow rate at high stage compressor (m3)ANSWER: 2.90255 kg/s c.) low stage compressor workANSWER: 12.96406 kw d.) high stage compressor workANSWER: 78.68819 kw e.) total compressor workANSWER: 91.65226 kw f.) COPANSWER: 4.73528 g.) heat rejected in the condenserANSWER: 525.65226 kw
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M Gmail X E 2 98 (1) YouTube Maps * Question Completion Status: Boiler News POR A 3 Reheater 4 P4= Ps= Preheat Ho 2 Pump Condenser Q 11 The following data was given for a steam power plant operating on the ideal reheat Rankine cycle. 3-4: Inlet steam at 17.5 MPa and 600 °C 6-1: inlet steam at a pressure of 11.16 kPa at a wetness fraction of 0.1. At state 1, the specific volume is 0.00101 m³/kg Calculate the thermal efficiency of the cycle to 1 decimal place. Click Save and Submit to save and submit.. Click Save All Answers to save all answers. © w Translate High-P turbine He Low-P turbine acer A 19°C Sunny ^
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