Life Cycle Assessment Introduced by Using Nanorefrigerant of Organic Rankine Cycle System for Waste Heat Recovery

The use of nanorefrigerants in Organic Rankine Cycle (ORC) units is believed to affect the cycle environment performance, but backed with very few relevant studies. For this purpose, a life assessment (LCA) has been performed for ORC system using nanorefrigerant, material and energy input, characteristic indicators comprehensive index environmental impact, total consumption payback time (BPBT) whole Al2O3/R141b nanorefrigerant were calculated. Total indexes reveal that ECER-135 decrease by 1.5% after adding 0.2% Al2O3 nanoparticles R141b. Based on contribution analysis sensitivity analysis, it can be found out manufacturing most critical stage, where, component production greatest, followed preparation process R141b, transportation phase, small. retirement phase which good benefits affects result significantly recycling important materials. Meanwhile, main cause suggestion improvement traced respectively. Finally, impacts various power generations compared, results show route obvious advantage. Among renewable energy, minimal impact only 0.67% coal-fired generation. current work about 14.34% other nations’ PV results.