ROSE HULMAN INSTITUTE OF TECHNOLOGY Foundation Coalition Sophomore Engineering Curriculum ES 202 Fluid Thermal Systems More exercise with water properties 1 Provide the information requested in the table for WATER When specifying the phases use the following abbreviations CL compressed subcooled liquid SL saturated liquid SM saturated mixture SV saturated vapor SHV superheated vapor Use NA for items that are not applicable at a particular state Pressure P kPa Temperature T C 1 2000 200 2 1000 200 3 1553 8 200 State Phase 4 Quality x Specific Volume v m3 kg 200 Specific Internal Energy u kJ kg Specific Enthalpy h kJ kg Specific Entropy s kJ kg K 0 100 5 100 2658 1 6 100 800 7 100 20 2 Plot the states on the P v and T v diagrams below Positions may be approximate but relative positions should be correct when compared with other states and saturation curves P T v v Phases Properties Page 1 ROSE HULMAN INSTITUTE OF TECHNOLOGY Foundation Coalition Sophomore Engineering Curriculum ES 202 Fluid Thermal Systems Exercise with interpolation 3 Sometimes property data does not fall on the points given in the table Under these conditions we must interpolate between the available data points to find the necessary information Typically this is done using linear interpolation This means that the missing data between the available points can be estimated by assuming that the functional relationship is a straight line Superheated water vapor v v P T Temperature Pressure 1 5 bars 3 0 bars 3 200 C 1 444 m kg 0 716 m3 kg 240 oC 1 570 m3 kg 0 781 m3 kg o a P 1 5 bars T 215 oC linear v b P 2 0 bars T 200 oC linear v c P 2 0 bars T 215 oC bi linear v d P 1 5 bars v 1 500 m3 kg linear T Phases Properties Page 2
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