Listar EMC_Articles por autoría "e6b6d181-ce14-49db-ad2c-c0bf64912159"
Mostrando ítems 1-13 de 13
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ANN Modeling to Analyze the R404A Replacement with the Low GWP Alternative R449A in an Indirect Supermarket Refrigeration System
Ghanbarpour, Morteza; Mota-Babiloni, Adrián; Makhnatch, Pavel; Badran, Bassam E.; Rogstam, Jörgen; Khodabandeh, Rahmatollah MDPI (2021-11-30)Artificial neural networks (ANNs) have been considered for assessing the potential of low GWP refrigerants in experimental setups. In this study, the capability of using R449A as a lower GWP replacement of R404A in ... -
Design of an environmentally friendly refrigeration laboratory based on cooling capacity calculation for graduate students
Mota-Babiloni, Adrián; Makhnatch, Pavel; Navarro-Esbrí, Joaquín; Moles, Fran; Khodabandeh, Rahmatollah Ahmad Ibrahim (2018)Lower global warming potential (GWP) refrigerants must be used in refrigeration education to integrate the environmentally responsible engineering principles in class. However, most of the refrigeration educational ... -
Experimental assessment of R134a and its lower GWP alternative R513A
Mota-Babiloni, Adrián; Makhnatch, Pavel; Khodabandeh, Rahmatollah; Navarro-Esbrí, Joaquín Elsevier (2017-02)Lower GWP refrigerants are essential to mitigate the impact of refrigeration systems on climate change. HFO/HFC mixtures are currently considered to replace HFCs in refrigeration and air conditioning systems. The aim of ... -
Experimental exergy analysis of R513A to replace R134a in a small capacity refrigeration system
Mota-Babiloni, Adrián; Belman, Juan; Makhnatch, Pavel; Navarro-Esbrí, Joaquín; Barroso-Maldonado, Juan Manuel Elsevier (2018-11-01)The replacement of HFCs using lower GWP refrigerants in the coming years is a priority to reduce the predicted climate change. The exergy analysis of vapor compression systems can help to identify the feasibility of ... -
Experimental study of R450A drop-in performance in an R134a small capacity refrigeration unit
Makhnatch, Pavel; Mota-Babiloni, Adrián; Khodabandeh, Rahmatollah Elsevier (2017-08)The Kigali amendment to the Montreal Protocol has highlighted the hydrofluorocarbons (HFCs) phase out as a priority to reduce the future global mean temperature increase. R134a is the most abundant HFC in the atmosphere ... -
Modeling and multi-objective optimization of an R450A vapor compression refrigeration system
Zendehboudi, Alireza; Mota-Babiloni, Adrián; Makhnatch, Pavel; Saidur, R.; Sait, Sadiq M. Elsevier (2019-01-05)The main objective of this work is to comprehensively investigate R450A behavior in refrigeration systems and subsequently optimize the main operating variables for the first time to reach the maximum performance. For this ... -
Predictions of European refrigerants place on the market following F-gas regulation restrictions
Mota-Babiloni, Adrián; Makhnatch, Pavel Elsevier (2021-03-10)The European Union (EU) Regulation on fluorinated greenhouse gases (F-gases) has encouraged to reduce gradually the number of hydrofluorocarbons (HFC) that can be placed on the market (POM) to 21% of the baseline level in ... -
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 Elsevier (2019-01-01)In recognition of the impact of the refrigeration sector on climate change, global commitments are achieved to replace hydrofluorocarbon substances with more planet-friendly alternatives. In this regard, countries with ... -
Recent investigations in HFCs substitution with lower GWP synthetic alternatives: Focus on energetic performance and environmental impact
Mota-Babiloni, Adrián; Makhnatch, Pavel; Khodabandeh, Rahmatollah Elsevier (2017-10)egulation (EU) No. 517/2014 (F-gas Regulation) controls the use of HFCs in several applications. This paper reviews the recent investigations performed because of F-gas Regulation, with focus on lower global warming potential ... -
Refrigerant R32 as lower GWP working fluid in residential air conditioning systems in Europe and the USA
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Makhnatch, Pavel; Moles, Fran Elsevier (2017)Because air conditioning and heat pump systems contribute greatly to greenhouse gas emissions, equipment with both lower global warming potential (GWP) working fluids and a higher level of performance should be used. R32 ... -
Retrofit of lower GWP alternative R449A into an existing R404A indirect supermarket refrigeration system
Makhnatch, Pavel; Mota-Babiloni, Adrián; Rogstam, Jörgen; Khodabandeh, Rahmatollah Elsevier (2017-04)R404A is going to be phased out from most of the commercial refrigeration systems due to its high GWP value of 3943. R449A (GWP of 1282) has been proposed to replace R404A with only minor system modifications in supermarkets. ... -
Semi-empirical analysis of HFC supermarket refrigeration retrofit with advanced configurations from energy, environmental, and economic perspectives
Mota-Babiloni, Adrián; Giménez-Prades, Pau; Makhnatch, Pavel; Rogstam, Jörgen; Fernández-Moreno, Adrián; Navarro-Esbrí, Joaquín Elsevier B.V. (2022-02-23)F-gas phase-down schedules will remove most of the HFCs (hydrofluorocarbons) used in refrigeration systems in the short term. Besides refrigerant substitution, configuration modifications can be considered in existing ... -
Using ANNs to approach to the energy performance for a small refrigeration system working with R134a and two alternative lower GWP mixtures
Belman, Juan; Mota-Babiloni, Adrián; Ledesma, Sergio; Makhnatch, Pavel Elsevier (2017)In this paper, an artificial neural network application to model a small refrigeration system is presented. The main objective of this study is an energy comparison of three refrigerants: R134a, R450A and R513A. The ...