6. Consider a Li-Br system as shown below: Refrigerant only Refrigerant plus absorbant To Ta (7) Generator Condenser (3) Refrig Strong solution vapor Weak solution Heat (8) exchanger (5) Еxp. valve 8 (2) Exp. valve A (6) Pump Absorber Evaporator (9) (10) (1) T
I. Condensing temperature = 40 C
II. Evaporating temperature = 5 C
III. Temperature of solution entering generator = 80 C
IV. Temperature of solution leaving generator = 100 C
V. Assume saturated conditions for states 3, 4, 8, and 10.
VI. Saturated steam at 0.2 MPa enters the generator and leaves as saturate water:
Compute:
a. the required mass flow rate of the steam (kg/hr) per kW of refrigeration produced
b. the Heat Rejection Ratio, HRR = (Qabsorber + Qcondenser)/Qevaporator of the system.
Given Data:
I. Condensing temperature = 40 C
II. Evaporating temperature = 5 C
III. Temperature of solution entering generator = 80 C
IV. Temperature of solution leaving generator = 100 C
V. Assume saturated conditions for states 3, 4, 8, and 10.
VI. Saturated steam at 0.2 MPa enters the generator and leaves as saturate water:
To find:
a. the required mass flow rate of the steam (kg/hr) per kW of refrigeration produced
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