Unformatted text preview: exhaust gases to a temperature of 500°C. The exhaust gases leave the heat exchanger at 450 K. Draw the two cycles on the same T-S diagram. Determine (a) the ratio of the mass flow rates of the steam and the combustion gases and (b) the thermal efficiency of the combined cycle. 2. One kmol of argon at 300 K is initially confined to one side of a rigid, insulated container divided into equal volumes of 0.2 m 3 by a partition. The other side is initially evacuated. The partition is removed and the argon expands to fill the entire container. Using the van der Waals equation of state, determine the final temperature of the argon, in K. Repeat using the ideal gas equation of state....
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- Fall '08
- Thermodynamics, Fundamental physics concepts, der Waals equation, 80 percent, 5kPa