Design of Promising Working Fluids for Emergent Combined Cooling, Heating, and Power (CCHP) Systems

Combined cooling, heating, and power (CCHP) systems enable the simultaneous supply of electricity, thus meeting major energy needs humans in a single device. Conventional CCHP consist combination prime mover, cooling system, each them operating with thermodynamically suitable working fluid. Recently, novel cycles, based on use fluid for whole operation, have been proposed. Since choice represents design challenge development such technologies, this work, product approach selection fluids emergent applications is presented. A database search implemented to screen about 60 000 structures included DDB, Design Institute Physical Properties, NIST TDE databases. The screening considers thermodynamic, process-related, constructional, safety, environmental constraints. Moreover, tc-PR equation state used ensure quality calculation thermophysical properties performance assessment promising fluids. This study shows that flammable as vinylacetylene or HFC-152 good potential applications. In case reinforced safety restrictions, HCFO-1233zd(E) seems be an interesting candidate since it nonflammable nontoxic.