An experimental investigation on the substitution of HFC134a with HFO1234YF in a domestic refrigerator

Aprea, Ciro; Greco, Adriana; Maiorino, Angelo

doi:10.1016/j.applthermaleng.2016.06.098

Cited by 64 publications

(23 citation statements)

References 41 publications

(47 reference statements)

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“…Although the majority of refrigerated appliances in Europe operate using hydrocarbon refrigerants (e.g. R600a) there is still ongoing work to replace R134a as a refrigerant in locations where hydrocarbons are not generally accepted, with work being undertaken by Aprea et al (2016), Joybari et al (2013) and Mohanraj (2013) to investigate replacements for R134a. Most refrigerants used in domestic refrigerators are azeotropes (they boil at a constant temperature) but it has been suggested that zeotropic refrigerants that have a wide temperature glide (they boil over a wide temperature range) could have advantages in domestic refrigerators, particularly in providing different temperatures in specific compartments.…”

Section: Technical Featuresmentioning

confidence: 99%

Temperature and energy performance of domestic cold appliances in households in England

Biglia

Gemmell

Foster

et al. 2018

International Journal of Refrigeration

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Highlights Temperatures and energy consumed by 998 cold appliances in households are reported. Mean refrigerator temperature was 5.3°C; the mean freezer temperature was -20.3°C. Mean electricity consumption was 354 kWh per year. Differences between cold appliance types were determined from statistical analysis. AbstractThis paper reports the results of a large-scale survey in which 998 cold appliances were monitored in 766 properties in England. No surveys published to date analyse such a large dataset, which includes data on ambient temperature, cold appliance temperature (refrigerator and/or freezer) and electricity consumption of the cold appliance. Simultaneous measurements of the temperature inside and outside of the cold appliances and the electricity consumption were taken over a period of seven days during a ninemonth period in 2015. An interview was also conducted with the householders to collect further information about the cold appliances and their usage patterns. The cold appliances monitored in the work included fridge-freezers (52%), refrigerators with ice-box (6%), larder fridges (14%), chest freezers (9%) and upright freezers (19%). It was found that for all monitored cold appliances with valid data that: the mean ambient temperature was 18.5°C; the mean refrigerator temperature was 5.3°C; the mean freezer temperature was -20.3°C; and the mean electricity consumption was 354 kWh per year. Significant differences between the electricity consumption of different types of cold appliance were determined from statistical analysis.

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Section: Technical Featuresmentioning

confidence: 99%

Temperature and energy performance of domestic cold appliances in households in England

Biglia

Gemmell

Foster

et al. 2018

International Journal of Refrigeration

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“…This HFO is one of the new generation of refrigerants introduced to the market with the aim of substitute the R134, being an alternative with low GWP but light inflammable (A2L), that can perform as drop-in replacement. Aprea et al [25] find out that this drop-in allows increasing the cooling capacity, being a refrigerant suitable for new plants and plants that are already working.…”

Section: Calculation Models and Assumptionsmentioning

confidence: 99%

CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic Analysis

Nebot‐Andrés¹,

Llopis²,

Sánchez³

et al. 2017

Applied Sciences

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Abstract:A recent trend to spread the use of CO 2 refrigeration cycles in warm regions of the world is to combine a CO 2 cycle with another one using a high performance refrigerant. Two alternatives are being considered: cascade and mechanical subcooling systems. Both respond to a similar configuration of the refrigeration cycle, they being based on the use of two compressors and same number of heat exchangers. However, the compressor, heat exchanger sizes and energy performance differ a lot between them. This work, using experimental relations for CO 2 and R1234yf semi-hermetic compressors analyzes in depth both alternatives under the warm climate of Spain. In general, it was concluded that the CO 2 refrigeration solution with mechanical subcooling would cover all the conditions with high overall energy efficiency, thus it being recommended for further extension of the CO 2 refrigeration applications.

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“…Therefore, two HFO (HydroFluoroOlefine) promising alternatives have been proposed: R1234yf [5] and R1234ze(E) [6], which present low-flammability, low-toxicity and GWP values of 4 and 6, respectively. In drop-in systems, R1234yf has been proposed as R134a substitute in equipment such as MAC [7] and [8], stationary refrigeration systems [9] and domestic refrigerators [10].…”

mentioning

confidence: 99%

Variable speed liquid chiller drop-in modeling for predicting energy performance of R1234yf as low-GWP refrigerant

Mendoza-Miranda

Salazar-Hernández

Carrera-Cerritos

et al. 2018

International Journal of Refrigeration

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An experimental investigation on the substitution of HFC134a with HFO1234YF in a domestic refrigerator

Cited by 64 publications

References 41 publications

Temperature and energy performance of domestic cold appliances in households in England

Temperature and energy performance of domestic cold appliances in households in England

CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic Analysis

Variable speed liquid chiller drop-in modeling for predicting energy performance of R1234yf as low-GWP refrigerant

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