R450A and R513A as lower GWP mixtures for high ambient temperature countries: Experimental comparison with R134a

Makhnatch, Pavel; Mota-Babiloni, Adrián; López-Belchí, Alejandro; Khodabandeh, Rahmatollah

doi:10.1016/j.energy.2018.09.001

Cited by 80 publications

(32 citation statements)

References 19 publications

(17 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, they are refrigerants that are mixed with HFCs [29][30][31], HFOs [32][33][34], and HCs [35][36][37]. Natural refrigerants are low-GWP, zero-ODP, high-capacity, low-pressure, and nontoxic [38][39][40]. Refrigerants need to be low-GWP, zero-ODP, high-capacity, low-pressure, and nontoxic, and should thus be mixed with HCs and HFOs; however, current refrigerants are still highly flammable and have low capacity.…”

Section: Introductionmentioning

confidence: 99%

Development of Environmentally - Friendly and Energy Efficient Refrigerant for Medium Temperature Refrigeration Systems

Saengsikhiao¹,

Taweekun²,

Maliwan³

et al. 2020

ARMS

View full text Add to dashboard Cite

This research presents the development of environmentally-friendly and energy efficient refrigerant for medium temperature refrigeration systems that new azeotropic refrigerant mixture of hydrofluorocarbons and hydrocarbon that can retrofit in the refrigeration system using R404A. The medium back pressure refrigeration testing standard that follow CAN/ANSI/AHRI540 standard air-conditioning, heating, and refrigeration institute (AHRI) and The properties of refrigerants and refrigeration simulation system that used national institute of standards and technology (NIST) reference fluid thermodynamic and transport properties database (REFPROP) software and NIST vapor compression cycle model accounting for refrigerant thermodynamic and transport properties (CYCLE_D-HX) software. The methodology use decision tree function in datamining by rapid minor software that first of KDnuggets annual software poll that showed new azeotropic refrigerant mixture had cooling capacity, refrigerant effect, GWP and boiling point were lower than R404A but work and pressure for medium temperature refrigeration system of azeotropic refrigerant mixture were higher than R404A. The artificial intelligence (AI) by data mining technic can predictive environmentally-friendly and energy efficient refrigerant for medium temperature refrigeration. The result of refrigerant mixed by R134A, R32, R125 and R1270 and is consistent with the evolution of fourth-generation refrigerants that contain a mixture of HFCs and HCs which are required to produce a low-GWP, zero-ozone-depletionpotential (ODP), high-capacity, low-operating-pressure, and nontoxic refrigerant.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of Environmentally - Friendly and Energy Efficient Refrigerant for Medium Temperature Refrigeration Systems

Saengsikhiao¹,

Taweekun²,

Maliwan³

et al. 2020

ARMS

View full text Add to dashboard Cite

show abstract

“…The R134A, is a generation of HFC that possess zero ODP and a GWP = 1800 [14], that was developed for the R22, but it has a low refrigerant effect. The R513A, R515A, R450A, R456A were developed to be alternatives to R134, but the performances of all refrigerants were nearly [15][16][17][18], subsequently, the refrigerant developed to the R404A. The fourth generation R404A was the baseline for this research, and is currently the most used refrigerant, as shown Figure 5 below [7].…”

Section: Evolution Of the Refrigerantmentioning

confidence: 99%

The Replacement of the R404A Refrigeration System with The Environmentally Friendly R448A, to Improve Convenience Store Energy Efficiency in Thailand

Saengsikhiao¹,

Taweekun²,

Maliwan³

et al. 2020

ARFMTS

View full text Add to dashboard Cite

This study presents the energy saving characteristics of the R448A, instead of the R404A refrigeration system, in 5 convenience stores, with a total of 150 m 2 , situated in Central Thailand. The R448A hydrofluorocarbons/hydrofluoroolefins (HFCs/HFOs) (GWP=1390) is a non-azeotropic mixture of R32 (26%), R125 (26%), R1234yf (20%), R134a (21%) and R1234ze (E) (7%), which can be retrofitted to replace the R404A refrigeration system. The R404A hydrofluorocarbons (HFCs) (GWP=3735) is a near azeotropic mixture of R125 (44%), R143A (52%), R134A (4%). Both refrigerants are composed of polyol ester oil (POE), are incombustible and non-toxic. The R448A has a higher cooling capacity (Qe) and lower global warming potentials (GWP) than the R404A due to its hydrofluorocarbons (HFCs) R32 component and hydrofluoroolefins (HFOs) R1234yf/R1234ze (E) component, as opposed to the R404A. This was determined by measuring power consumption (kWh) and the ambient temperature (°C) through the use of power meters and temperature data logger respectively. The result obtained was able to summarize the relationship of all the parameters concerned, and showed an energy-saving average of 7.9%, i.e. 28,273 kWh/year per 5 stores, and a decreased global warming potential (GWP) of 70%, through the use of a digital scroll compressor.

show abstract

“…The R134A, is a generation of HFC that possess zero ODP and a GWP = 1800, that was developed for the R22, but it has a low refrigerant effect [38]. The R513A, R515A, R450A, R456A were developed to be alternatives to R134, but the performances of all refrigerants were nearly, subsequently, the refrigerant developed to the R404A [11][12][13][14]. The fourth generation R404A was the baseline for this research, and is currently the most used refrigerant, as shown Figure 5 below [6].…”

Section: Evolution Of the Refrigerantmentioning

confidence: 99%

The Performance Simulation of The New R463A HFC/HFO/Carbon Dioxide Refrigerant with Lower GWP, As an Alternate Option for The R404A Refrigeration System

Saengsikhiao

Taweekun

Maliwan

et al. 2020

ARFMTS

View full text Add to dashboard Cite

This study presents the performance simulation of the R463A that has been developed to be retrofitted to replace the R404A. The R463A is primarily composed of hydrofluorocarbons/hydrocarbon/carbon dioxide (HFCs/HCs/CO2). The R463A refrigerant (GWP=1494) is a non azeotropic mixture of R32 (36%), R125 (30%), R134a (14%), R1234yf (14%), and R744 (6%). It is composed of polyol ester oil (POE), and classified as a Class A1 incombustible and non-toxic refrigerant. The R463A has a higher cooling capacity (Qe) than the R404A, as it is composed of hydrofluorocarbons (HFCs) R32 and carbon dioxide (CO2) R744, and also has a lower global warming potential (GWP) than the R404A due to the hydrofluoroolefins (HFOs) by R1234yf. The properties of the R463A and R404A that uses the REFPROP and CYCLE_D-HX software, is in accordance to the CAN/ANSI/AHRI540 standard airconditioning , heating, and refrigeration institute (AHRI). The normal boiling point of the R463A was found to be higher than the R404A by 23%, with a higher cooling capacity and a lower GWP value by 63% than the R404A. The critical pressure and temperature of the R463A was found to be higher than the R404A, i.e. it can be used in a high ambient temperature environment, and emits a higher refrigerant effect and heat reject with a lower global warming potential (GWP) than the R404A by 52%, due to its hydrofluoroolefins (HFOs) by R1234yf component. The COP of the R463A was found to be higher than the R404A by 10% under low temperature application.

show abstract

R450A and R513A as lower GWP mixtures for high ambient temperature countries: Experimental comparison with R134a

Cited by 80 publications

References 19 publications

Development of Environmentally - Friendly and Energy Efficient Refrigerant for Medium Temperature Refrigeration Systems

Development of Environmentally - Friendly and Energy Efficient Refrigerant for Medium Temperature Refrigeration Systems

The Replacement of the R404A Refrigeration System with The Environmentally Friendly R448A, to Improve Convenience Store Energy Efficiency in Thailand

The Performance Simulation of The New R463A HFC/HFO/Carbon Dioxide Refrigerant with Lower GWP, As an Alternate Option for The R404A Refrigeration System

Contact Info

Product

Resources

About