Refer to the steam power plant below and determine the following: ii. i. Specific enthalpy at the steam turbine inlet Specific enthalpy at the steam turbine exit Density at the pump entrance iii. Win P. 20 kPa T Tat@20kPa-5.6°C W Pump Boler Condenser Qout Steam Turbine P 8MPa T 450℃ Wout P. 20 kPa $*6.5579 kg K₂

Refer to the steam power plant below and determine the following: ii. i. Specific enthalpy at the steam turbine inlet Specific enthalpy at the steam turbine exit Density at the pump entrance iii. Win P. 20 kPa T Tat@20kPa-5.6°C W Pump Boler Condenser Qout Steam Turbine P 8MPa T 450℃ Wout P. 20 kPa $*6.5579 kg K₂

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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* İl. Gmail ► Untitled docu.. A system consists of a turbine and heat exchanger are connected in series. The working fluid is entering the turbine at P1 0.6 Mpa, T= 200 °C and leaving it with P,= 0.2Mpa. Then the turbine exit becomes the heat exchanger inlet to increase the fluid temperature to become 800 °C. Considering that the adiabatic power y =1.4 and the specific heat = 1.005 KJ/Kg.K. Determine the turbine production work WT and heat exchanger energy needed to be added quE. T = 200 °C P,= 0.6 Mpa- T T2 ? P,=0.2 Mpa h high НЕ T= 800 °C P3 =? 9 in
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Find the turbine specific work, y=0.143 state 1 2 3 45 9 10 kJ/kg 226 236.1670 3602 2796 3481 2494 702 Turbine Boiler 6. 8. 4 Mixing chamber Closed Condenser fwh 2 10 3 PII PI
ROOM (2) 700kPa x=0 CONDENSER (1) 40°C 700kPa EXPANSION VALVE (3) 100kPa EVAPORATOR (4) 100kPa x=1 OUTSIDE Consider a heat pump cycle operating with R134-a fluid at 0.01kg/s mass flow rate. Conditions are given in the figure. a) What are the values of heat supply rate to the room and heat absorption rate from the outside? b) What is COP of this heat pump? c) Assume we immediately put a watermelon of 8kg to the room at 2°C. Assuming a specific heat of 4200J/kg for the watermelon, how long will it take for the watermelon to reach room temperature of 20°C if we assume that heat pump only heats watermelon? O A) 2.7 minutes B) 3.2 minutes C) 4.4 minutes O D) 5.3 minutes E) 6.2 minutes COMP.
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A power plant operates in an idealized Rankine cycle, using water as the working fluid (Figure 3). The steam at the exit of the boiler has a pressure of 6 MPa and temperature of 600 °C (point 1). The water at the exit of the condenser has a pressure of 15 kPa (point 3). The condenser employs a nearby river as the cooling source, which can be regarded to have a constant temperature of 25 °C. The mass flow rate of the steam is 80 kg/s. The hot reservoir has a temperature of 1400 K. Regard water as an incompressible liquid. During pumping, the density of water remains unchanged as Point 3 in Figure 3. Qin Boiler i wwwwww Pump Turbine Wp 3 Figure 3 W₁ Cooling water Condenser
Explain what is wrong with the system shown in Figure Q4(b).