Solution temperature, 120°C 90 85 80 75 70 65 60 55 50 45 40 35 30 25 TOLL Saturation temperature of pure water, 70.1 57.8 47.4 38.6 31.2 25.0 19.9 15.7 12.3 9.58 7.38 5.62 4.24 3.17 2.34 1.70 1.23 0.87 0.61 67 68 69 70 Vapor pressure, kPa 20 Crystallization 15 10 5 0 10 20 30 40 50 55 60 Lithium bromide in solution, by mass Figure 175 Temperature-pressure-concentration diagram of saturated LiBr-Water solutions, developed from data in Ref. I.
200 180 10N 120 Solution temperature is 100 NO 16 LO Enthalpy. 100 -120 -140 -160 -180 -2001 Percent lithium bromide, 5 by me Pipe 178 Enthalpy of Life-water solution data from Rat. L.
Question 5 10 points Save Answer A manufacturer conducted an experiment for an evaporator capacity 500 kW cooling and designed for high COP of 2 when using lithium bromide plus water in an absorption refrigeration system. The evaporator operates 20 C, condenser 40 C & absorber 45 C supplying 1.4 kg/s of water plus lithium bromide solution to the generator. For a condenser size of 650 kW, determine: Use Fig. 17-5 and 17-8 Show in your solution paper: Chart reading for % mass and Enthalphy of solution delivered to the generator Provide in the Answer Box: Enthalpy of solution delivered to the generator in kJ/kg
Solution temperature, 120°C 90 85 80 75 70 65 60 55 50 45 40 35 30 25 TOLL Saturation temperature of pure water, 70.1 57
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Solution temperature, 120°C 90 85 80 75 70 65 60 55 50 45 40 35 30 25 TOLL Saturation temperature of pure water, 70.1 57
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