Experimental evaluation of alternative CO2-based blends for transcritical refrigeration systems.

被引：0

作者：

Vidan-Falomir, F. ^{[1
]}

Larrondo-Sancho, R. ^{[1
]}

Sanchez, D. ^{[1
]}

Martinez-Angeles, M. ^{[1
]}

Calleja-Anta, D. ^{[1
]}

Nebot-Andres, L. ^{[1
]}

Llopis, R. ^{[1
]}

Cabello, R. ^{[1
]}

机构：

[1] Jaume I Univ, Dept Mech Engn & Construct, Thermal Engn Grp GIT, E-12071 Castellon de La Plana, Spain

来源：

26TH IIR INTERNATIONAL CONGRESS OF REFRIGERATION, VOL 2 | 2023年

关键词：

Refrigeration; Carbon Dioxide; COP; Mixture; R1270; R32; PERFORMANCE; CO2; WORKING;

D O I：

10.18462/iir.icr.2023.0792

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This work presents two refrigerant CO2 blends with R32 and R1270 designed with a theoretically non-flammability and a GWP below 150. Both mixtures were tested in a small-capacity vapour compression system with and without IHX, considering the same working conditions of heat rejection temperature and demanding conditions at the evaporator. Taking the pure CO2 results as a reference in a cycle without IHX, the blend of CO2/R32 enhanced the COP up to 18.1% with an optimal pressure reduction of 19.0% and a power consumption minimization of 17.1%. The mixture of CO2/R1270 presented a COP enhancement of 8.4% with an optimal pressure reduction of 8.0% and a power consumption minimization of 7.9%. In all cases, the use of the IHX resulted positively with increments compared to the pure CO2 base cycle of 6.4% for pure CO2, 13.3% for CO2/R1270, and 24.7% for CO2/R32.

引用

页码：1973 / 1982

页数：10

共 24 条

[1] Experimental assessment of a thermoelectric subcooler included in a transcritical CO2 refrigeration plant [J].