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(old exam problem) You work as an engineer for a company looking to use a different substance than H2O in a Rankine Cycle. Your job
(old exam problem) You work as an engineer for a company looking to use a different substance than H2O in a Rankine Cycle. Your job is to analyze the boiler. You are not told the name of the substance (it is proprietary), but you are given a variety of thermophysical properties. You are interested in determining the heat load on the boiler. However, in this problem you are ONLY concerned with the thermodynamic path and will NOT calculate any values (though you need to put the right values into the formulas...you just won't make a calculation). \begin{tabular}{|l} P \\ \hline v \\ \hline \end{tabular} You assume that a compressed liquid arrives at the boiler at 29.0C and 10 bar. It leaves the boiler as a superheated vapor at 100.0C. As usual, the boiler operates in an isobaric manner. (a) Write down the appropriate energy balance for this system. Note: Unlike the previous two problems, you do NOT have to start at the appropriate/general balance and cross out terms. Here...just write down the energy balance you will use. (b) Provide a suitable thermodynamic path to obtain the desired state value change (i.e. based on your answer to part (a)) and describe (via an equation or directly the value, if applicable) how you would calculate each step. Make/describe appropriate assumptions, where applicable. (c) For each step in part b, calculate the value required in units of kJ/mol
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