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Unformatted text preview: a ) Calculate the amount of heat that has to be transferred to the working fluid in order to: a1. bring the water to the boiling point. a2. evaporate the water and a3 superheat the steam before the high pressure and low pressure turbines. b ) The condenser (heat exchanger Fig.1) operates by transferring Q out to the nearby river. Assume that: - River temperature is 10 C before it enters the heat exchanger. - River temperature must not exceed 15 C Determine: b1. The flow rate of water (from the river) needed, kg/s. b2. The area needed for heat transfer. b3. The diameter, length and number of tubes (to be discussed in class, on Monday). Fig. 1 2.3 Complete the following table: Fuel Price Energy Density [kJ/kg] Energy Density [kJ/m3] $/kJ Coal ___per tone Oil $72 per barrel Gasoline $3 per gallon Electricity $0.05 per kWh Note: 1 barrel=0.1589 m3....
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This note was uploaded on 09/24/2010 for the course MMAE 592 taught by Professor Alexanderostrogorsky during the Spring '10 term at Illinois Tech.
- Spring '10