Abstract
The article presents the results obtained by substituting R22 with
mixture of R32/R125/R134A (R407A, R407B and R407C) in an existing
refrigeration plant. Cooling capacity, coefficient of performance
and heat transfer coefficient in the evaporator have been
measured.The results show that for R407C both the cooling capacity
and COP are smaller then the cooling capacity and COP with R22.
The cooling capacity for R407A and R407B is lower than the
capacity for R22 for brine temperatures less than 0 C and higher
then the cooling capacity for R22 for brine temperatures higher
than 0 C. The COP for R407A and R407B er lower than the COP for
R22.The volumetric and isentropic efficiency of the compressor are
with mixture higher than the volumetric and isentropic efficiency
with R22.
| Original language | English |
|---|---|
| Journal | Scan Ref |
| Volume | 26 |
| Issue number | 4 |
| Pages (from-to) | 5-9 |
| ISSN | 0284-0758 |
| Publication status | Published - 1997 |