Solved: 5. Do a pinch analysis of the same. The Evaporator of the above cycle

Question

5. Do a pinch analysis of the same. The Evaporator of the above cycle has pinch issue and for two fluids the pinch varies. The pinch analysis is done below. Please discuss the pinch analysis and explain which fluid is better to generate more energy from the geothermal source which is at 73 C (low quality source). Look out for the VLE properties of the fluids from any standard ASHRAE table. It will give you very interesting insights. Table 1 Properties of working flakh used in the simulation from Ref. [9]. Property Molecules (kk) Critical point Latent heat of vaporization best at 1 sm. (kg) Beiling tempenbare at 1 st. (C) Safety Amphic life yours R-134a R-345 102 101-406 134.06 217.2 -3264 154 C-364 b 1915 149 Non-duble Non-flable 76 BI ASHRAE level of salty ΑΠ depleting CEIP -0 Net grondhouse warning potential (GWP) 100 year 1430 1000 Fate of an DMC