6. A throttling calorimeter is connected to the superheated steam line supplying steam to the auxiliary feed pump on a ship. The line pressure measures 2.5 Mpa. The calorimeter pressure is 110 kpa and 150oC. Determine the entropy of the steam line. Please explain the answer.
Answer: a. 6.8 KJ/kg-oK c. 6.6 KJ/kg-oK
b. 6.2 KJ/kg-oK d. 7.5KJ/kg-oK
From the steam table;
Superheated steam at 110kPa,150°C we obtained;
For saturated liquid and vapour tables;
Also;
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