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A steam power plant that is planned to be built near river, has been proposed for an energy company with a designed power output
A steam power plant that is planned to be built near river, has been proposed for an energy company with a designed power output around 10MW. As a team of engineer, design your steam power plant based on the steam cycles analysis that you have learned. Show your schematic diagram based on your design to achieve the desired power output, which is around 10MW. The design needs to consider at least a boiler, turbine, condenser and pump. Cooling for the condenser will utilize water from the nearby river; therefore, the turbine exit temperature should be reasonably low before the working fluid from the turbine exit enters the condenser. Higher turbine exit temperature will cause water from the river to increase therefore will give impact to the environment. m Design consideration: i. Produce around 10MW, assuming the mass flow rate of steam is 10 kg/s ii. iii. A. To do list: i. ii. High thermal efficiency Low heat added to boiler Boiler 15 MPa iii. iv. 15 MPa, 600C h1 = 3583 kJ/kg Design your steam power plant, capable of producing around 10MW Show your calculation by using Matlab/Octave or your preferred programming language. Show all the equation you used and all the calculations in the report. Calculate the thermal efficiency of your steam power plant From your design, calculate the water exit temperature of the condenser, assuming the mass flow rate of water entering and exiting the condenser is half of the mass flow rate of the steam power plant. The condenser inlet temperature is 50C and the heat transfer in condenser occurs under constant pressure. Refer Image 1 Reheat 1 MPa, 197 C Closed Feedwater Heater y Tsat@IMPa = 180C Both turbines isentropic HP Turbine h2=2821 kJ/kg (1-y) 1 MPa, 600C h3 = 3699 kJ/kg LP Turbine h6=h5+ Ahfeed = 207 kJ/kg =75 SEMM2423 - PROJECT wfeed Feedwater Pump Condenser 5 aput Hotwell 10 kPa sat liquid Wturbine Throttling valve Water exit from condenser after cooling Cooling water Water from river 50C Image 1. Dotted red box showing the condenser with B. Once you have the design, which take into account, all of the design consideration, by aid of the programming tools, plot the thermal efficiency of the steam power plant by varying the turbine inlet temperature. You can increase the turbine inlet temperature to be higher than your design. The temperature selection should be made at 3 different temperatures therefore, you will be plotting 3 thermal efficiency (on Y-axis) against 3 turbine inlet temperatures (on X-axis).
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