7. Consider a LiBr machine operating according to the following schematics: GENERATOR CONDENSER TEMPERATURE CONSTANT LI CCENTRATION UNES, HEAT OUT NEAT EXCHANGER SOLUTION PUMP RESTRICTOR CONCENSER PRESSURE RESTRICTOR VAPOR EAPORATOR PRESSRE SPLLOVER EVAPORATO CRYSTAL CZanoN LNE LOW TEMPERATURE HEAT OUT EWORATOR AeSoRER GLNERA TEMPERATUE TEMERATUE TEMPERATURE TEMPERATURE he system operates as follows: 1. Refrigeration load = 500 tons II. Evaporator temperature, state 8 = 41.1 °F II. Absorber equilibrium temperature, state 3 = 107.2 °F IV. Actual solution temperature, state 4 = 100.9 °F V. Solution temperature, state 5 = 170.3 °F %3D VI. Solution temperature, state 1 = 209.6 °F %3D VII. Solution temperature, state 2 = 128.1 °F Refrigerant vapor temperature, state 6 = 200 °F Refrigerant temperature, state 7 = 100 °F Refrigerant spill-over rate, state 9 = 2.5% of state 8 Concentrations of solution on a LiBr Duhring's phase diagram per above temperatures XII. Cooling water temperature entering = 85 °F VII. IX. X. XI. Chilled water temperature delta = AT = 54 – 44 = 10 °F XIII. XIV. Cooling water tower water flow rate = 1800 GPM Absolute pressure of generator = 65.9 mm Hg Mass fraction of LiBr in the solution from the absorber, Y, = 0.595 XV. XVI. XVII. Mass fraction of LiBr in the solution from the generator, Y, = 0.646 REFRGERANT VAPON PHESSURE