Listar por autoría "69287e2a-491e-42ea-891f-a2792d626154"
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A review of refrigerant R1234ze(E) recent investigations
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Moles, Fran; Barragán Cervera, Angel; Peris, Bernardo; Verdú, Gumersindo Elsevier (2016-02-25)Climate change is demonstrated through global surface temperatures increase in the last century. To stop this phenomenon, new regulations that ban or tax greenhouse gas fluids (HFC among them) have been approved. In the ... -
Analysis based on EU Regulation No 517/2014 of new HFC/HFO mixtures as alternatives of high GWP refrigerants in refrigeration and HVAC systems
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Moles, Fran; Peris, Bernardo Elsevier (2015)The EU Regulation No 517/2014 is going to phase-out most of the refrigerants commonly used in refrigeration and air conditioning systems (R134a, R404A and R410A) because of their extended use and their high GWP values. ... -
Bottoming organic Rankine cycle configurations to increase Internal Combustion Engines power output from cooling water waste heat recovery
Peris, Bernardo; Navarro-Esbrí, Joaquín; Moles, Fran Elsevier (2013-11-03)This work is focused on waste heat recovery of jacket cooling water from Internal Combustion Engines (ICEs). Cooling water heat does not always find use due to its low temperature, typically around 90 °C, and usually is ... -
Commercial refrigeration – An overview of current status
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Moles, Fran; Peris, Bernardo; Verdú, Gumersindo Elsevier (2015)Commercial refrigeration comprises food freezing and conservation in retail stores and supermarkets, so, it is one of the most relevant energy consumption sectors, and its relevance is increasing. This paper reviews the ... -
Drop-in analysis of an internal heat exchanger in a vapour compression system using R1234ze(E) and R450A as alternatives for R134a
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Moles, Fran; Peris, Bernardo Elsevier (2015-10)The IHX (internal heat exchanger) is introduced in some refrigeration systems in order to achieve higher energy performances. Results obtained vary greatly depending on the refrigerant used and working conditions. This ... -
Drop-in energy performance evaluation of R1234yf and R1234ze(E) in a vapor compression system as R134a replacements
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Moles, Fran; Peris, Bernardo Elsevier (2014-10)This paper presents an energy performance evaluation of two low-GWP refrigerants, R1234yf and R1234ze(E), as drop-in replacements for R134a. Tests are carried out in a monitored vapor compression system combining different ... -
Dynamic model of a shell-and-tube condenser. Analysis of the mean void fraction correlation influence on the model performance
Milián, V.; Navarro-Esbrí, Joaquín; Ginestar, D.; Moles, Fran; Peris, Bernardo Elsevier (2013)A moving-boundary dynamic model of a shell-and-tube condenser is presented. Within this approach, the mean void fraction is a relevant parameter which is obtained, in this work, using different correlations proposed in the ... -
Evaluación energética de los refrigerantes R1234yf y R152a como alternativa al R134a en sistemas de refrigeración
Navarro-Esbrí, Joaquín; Mota-Babiloni, Adrián; Peris, Bernardo; Moles, Fran; Mendoza-Miranda, Juan Manuel; Belman, Juan; Rubio Arana, Jose Cuauhtémoc Universidad Nacional de Educación a Distancia (2013)En este artículo se presenta la evaluación del desempeño teórico de los refrigerantes R1234yf y R152a como alternativas al R134a para ciclos de refrigeración. La evaluación se realiza para un ciclo de simple etapa en un ... -
Experimental characterization of an ORC (organic Rankine cycle) for power and CHP (combined heat and power) applications from low grade heat sources
Peris, Bernardo; Navarro-Esbrí, Joaquín; Moles, Fran; González, Manuel; Mota-Babiloni, Adrián Elsevier (2015-03)An ORC (organic Rankine cycle) module, designed and built for a specific CHP (combined heat and power)) application, is tested in this paper. The aim of the work is to characterize the system performance in the operating ... -
Experimental characterization of an Organic Rankine Cycle (ORC) for micro-scale CHP applications
Peris, Bernardo; Navarro-Esbrí, Joaquín; Moles, Fran; Martí, José Pascual; Mota-Babiloni, Adrián Elsevier (2015-03-25)This work conducts an experimental characterization of an Organic Rankine Cycle (ORC) module along the operating conditions expected for micro Combined Heat and Power (CHP) applications. For this, a monitored test bench ... -
Experimental evaluation of HCFO-1233zd-E as HFC-245fa replacement in an Organic Rankine Cycle system for low temperature heat sources
Moles, Fran; Navarro-Esbrí, Joaquín; Peris, Bernardo; Mota-Babiloni, Adrián Elsevier (2016-04-05)In this work an experimental evaluation of the working fluid HCFO-1233zd-E as HFC-245fa replacement in ORC systems for low temperature heat sources has been conducted. A fully monitored ORC module has been used to test ... -
Experimental evaluation of R448A as R404A lower-GWP alternative in refrigeration systems
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Peris, Bernardo; Moles, Fran; Verdú, Gumersindo Elsevier (2015-11)Due to the adoption of EU Regulation No 517/2014, R404A is going to be banned in Europe in most of refrigeration applications, in which is typically used, due to its very high GWP value, 3943. In this paper an experimental ... -
Experimental evaluation of system modifications to increase R1234ze(E) cooling capacity
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Mendoza-Miranda, Juan Manuel; Peris, Bernardo Elsevier (2017)The GWP limitations are being progressively introduced in Europe through Regulation EU No 517/201, phasing out R134a in most of its refrigeration and air conditioning applications. Pure hydrofluoroolefins are proposed to ... -
Experimental study of an ORC (organic Rankine cycle) for low grade waste heat recovery in a ceramic industry
Peris, Bernardo; Navarro-Esbrí, Joaquín; Moles, Fran; Mota-Babiloni, Adrián Elsevier (2015-06)This paper deals about an experimental application of an ORC (organic Rankine cycle) in a ceramic industry for low grade waste heat recovery. The ORC module used in this application was initially designed and constructed ... -
Experimental study of an Organic Rankine Cycle with HFO-1336mzz-Z as a low global warming potential working fluid for micro-scale low temperature applications
Navarro-Esbrí, Joaquín; Moles, Fran; Peris, Bernardo; Mota-Babiloni, Adrián; Kontomaris, Konstantinos Elsevier (2017-08-15)An experimental evaluation of HFO-1336mzz-Z as a low global warming potential working fluid for ORC systems in micro-scale low temperature applications has been conducted. The energy performance in a fully monitored ORC ... -
Experimental study of an R1234ze(E)/R134a mixture (R450A) as R134a replacement
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Moles, Fran; Peris, Bernardo Elsevier (2015)This work presents an experimental analysis of a non-flammable R1234ze(E)/R134a mixture (R450A) as R134a drop-in replacement. While R134a has a high GWP value (1430), the R450A GWP is only 547. The experimental tests are ... -
Experimental study of an R1234ze(E)/R134a mixture (R450A) as R134a replacement
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Molés, Francisco; Peris, Bernardo Elsevier (2014-12-20)This work presents an experimental analysis of a non-flammable R1234ze(E)/R134a mixture (R450A) as R134a drop-in replacement. While R134a has a high GWP value (1430), the R450A GWP is only 547. The experimental tests are ... -
Low GWP alternatives to HFC-245fa in Organic Rankine Cycles for low temperature heat recovery: HCFO-1233zd-E and HFO-1336mzz-Z
Moles, Fran; Navarro-Esbrí, Joaquín; Peris, Bernardo; Mota-Babiloni, Adrián; Barragán Cervera, Angel; Kontomaris, Konstantinos Elsevier (2014-10)HFC-245fa is a common working fluid used in Organic Rankine Cycles generating mechanical power from low temperature heat. This paper compares the predicted ORC performance of two novel low GWP working fluids, HCFO-1233zd-E ... -
Micro-generation and micro combined heat and power generation using “free” low temperature heat sources through Organic Rankine Cycles
Navarro-Esbrí, Joaquín; Peris, Bernardo; Collado, Roberto; Moles, Fran European Association for the Development of Renewable Energies, Environment and Power Quality (2013-03)The Organic Rankine Cycle (ORC) technology is an efficient way for small-scale generation. It offers great benefits from low temperature heat sources, recovering waste heat and revaluing renewable thermal energy. This ... -
Multi-objective optimization of a novel reversible High-Temperature Heat Pump-Organic Rankine Cycle (HTHP-ORC) for industrial low-grade waste heat recovery
Mateu-Royo, Carlos; Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Peris, Bernardo; Moles, Fran; Amat-Albuixech, Marta Elsevier (2019-08-08)Nowadays, a high amount of industrial thermal energy is still lost due to the lack of competitive solutions for energy revalorization. Facing this challenge, this paper presents a novel technology, based on a reversible ...