Encyclopedia

  • Evaluation of R-1234ze(Z) as drop-in replacement for R-245fa in Organic Rankine Cycles – From thermophysical properties to cycle performance
  • Add time:08/06/2019         Source:sciencedirect.com

    To Prof. Jürgen Köhler to his 60th birthday.ORCs (Organic Rankine Cycle) experience growing interest for the generation of electricity from industrial waste heat. However, the widely used working fluid R-245fa does not seem to be sustainable due to its relative high GWP (Global Warming Potential) of almost 900 [1]. In this work, we have evaluated the low GWP working fluid R-1234ze(Z) as drop-in replacement for R-245fa in low-grade ORC processes. Our studies thereby comprise a comparison of the thermophysical properties of R-1234ze(Z) and R-245fa and resulting differences in the performance of the ORC cycle. Information on the thermophysical properties of R-1234ze(Z) from experiment is complemented by molecular simulation results.Our system simulation studies on the ORC process covers a heat source temperature range from 100 °C to 250 °C, which represents relevant operating conditions for industrial applications. A stationary cycle model of a typical ORC configuration was set up in order to optimize operation points and to evaluate characteristic system values for both working fluids.Our simulation results indicate that R-1234ze(Z) is a promising replacement fluid for R-245fa in ORC applications, though noticeable performance losses for heat source temperatures between 183 and 224 °C are observed.

    We also recommend Trading Suppliers and Manufacturers of (Z)-ETHYL-4,5-O-ISOPROPYLIDENE-(R)-4,5-DIHYDROXY-2-PENTENOATE (cas 104321-63-3). Pls Click Website Link as below: cas 104321-63-3 suppliers


    Prev:Z-Advanced numbers processes
    Next: On the uniqueness of the positive Z-eigenvector for nonnegative tensors)

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View