Experimental study of R1234yf as a drop-in replacement for R134a in a domestic refrigerator

Abstract

Highlights  An experimental study of R1234yf as a drop-in replacement for R134a is presented  An alternative methodology was proposed to estimate the optimal mass charge  R1234yf optimal charge was 92.2 g, about 7.8% lower than R134a  A thermal and energy comparison between R134a and R1234yf was analyzed  The TEWI analysis for the R1234yf was 1.13% higher than for R134a

Experimental investigations on R430A as a drop-in substitute for R134a in domestic refrigerators

“…The energy consumption of R1234yf was found to be 4% higher than that of R134a, which contributes 1% higher TEWI compared to R134a. Furthermore, Belman-Flores et al 15 analyzed the performance of a domestic refrigeration system working with R1234yf as a drop-in replacement for R134a in terms of energy and exergy analysis. It was reported that R1234yf was not possible to use as a drop-in substitute for R134a, which requires modifications in the system.…”

Perspectives on Consumer Habits with Domestic Refrigerators and Its Consequences for Energy Consumption: Case of Study in Guanajuato, Mexico

“…With this, a sustainable appliance would be achieved/projected through its technology and its use. In this sense, it is expected that manufacturers also commit to the use of refrigerants with low global warming potential [16,40], as it has been pronounced in the Kigali Amendment, which came into effect as of January 2019 [41]. Finally, it is important to mention that the results presented in this paper may be different for consumers from other states in Mexico.…”

“…The age and the design of the refrigerator play an important role in the energy consumption, as well as in the thermal behavior in the food compartments [17,22]. Modern refrigerators should be more efficient in comparison with older models; they should even be less harmful to the environment, when referring to the type of working fluid [16]. Table 1 shows the age of the refrigerators analyzed for this study.…”

“…Twenty-seven consumers adjust their damper in a low position, which represents a high thermal condition in the refrigerator compartments, 7.2 °C in the food compartment and −14.4 °C in the freezer. The rest of the consumers (60) keep their refrigerators in a high position, which means that the refrigerator is in the coldest thermal condition, approximately 1.6 °C in the food compartment and −21 °C in the freezer [16]. Most of the consumers do not know the temperature that the damper positions represent, and they prefer to keep the factory set position (position 5 or medium).…”

Dynamic Performance Comparison Of R134a and R1234yf Refrigerants for a Vapor Compression Refrigeration Cycle

“…Mota-Babiloni [14] studied the effects of R134a, R1234yf and R1234ze refrigerants both experimentally and theoretically to the system performance, condenser outlet temperature and evaporator outlet temperature. Belman-Flores et al [15] experimentally studied the effects of R1234 yf and R134a to the performance and evaporator and condenser outlet temperatures of a domestic refrigerator.…”