(Solved): 1. A single-stage LiBr-water absorption system with a heat exchanger operates at the given tempera ...

1. A single-stage LiBr-water absorption system with a heat exchanger operates at the given temperatures shown in Figure 1 . The mass flow rate of the solution delivered by the pump is \( 0.70 \mathrm{~kg} / \mathrm{s} \). Answer the following questions. (a) Determine the LiBr concentration at the point \( 1\left(\mathrm{x}_{1}\right) \) and the point \( 3\left(\mathrm{x}_{3}\right) \) (3 marks) (b) Determine the flow rates at all the points (4 marks) (c) Determine the enthalpy of the fluid at all the points (5 marks) (d) Determine the temperature at the point 4 (3 marks) (e) Determine the coefficient of performance (COP) of the system (5 marks) Figure 1. A single-stage \( \mathrm{LiBr} \)-water absorption system with a heat exchanger