[EN] 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. ...
Mendoza Miranda, Juan Manuel; Belman Flores, Juan Manuel; Gallegos Muñoz, Armando; Mota Babiloni, Adrián; Navarro Esbri, Joaquin(Federación de Asociaciones de Ingenieros Industriales de España (FAIIE), 2014-12)
[EN] This paper presents a spreadsheet application for data filtering
and energy analysis, which has applications in research
and experimental evaluation of the energetic performance of
alternative refrigerants. ...
MILIÁN SÁNCHEZ, VÍCTOR(Universitat Politècnica de València, 2014-01-28)
Las instalaciones de producción de frío por compresión de vapor suponen un alto porcentaje de consumo energético, por lo que es esencial disponer de herramientas para optimizar de su diseño y facilitar su mantenimiento. ...
Mendoza Miranda, Juan Manuel; Navarro Esbri, Joaquin; Mota Babiloni, Adrián; Belman Flores, Juan Manuel; Rubio Arana, José Cuauhtémoc; Peris Pérez, Bernardo; Molés Ribera, Francisco(Universidad Nacional de Educación a Distancia (UNED), 2013-10)
[EN] This paper presents a theoretical performance of R1234yf and R152a as possible replacements of
R134a in refrigeration systems. The refrigeration system performance using R134a, R1234yf and R152a was
carried out for ...
Mendoza Miranda, Juan Manuel; Mota-Babiloni, Adrián; Navarro Esbri, Joaquin(Elsevier, 2016-04-05)
[EN] When retrofitting new refrigerants in an existing vapour compression system, their adaptation to the heat exchangers is a major concern. R450A and R448A are commercial non-flammable mixtures with low GWP developed to ...
Navarro Esbri, Joaquin; Mendoza Miranda, Juan Manuel; Mota Babiloni, Adrián; Barragán Cervera, Ángel; Belman Flores, Juan Manuel(Elsevier, 2013-05)
[EN] This paper presents an experimental analysis of a vapor compression system using
R1234yf as a drop-in replacement for R134a. In this work, we compare the energy performance
of both refrigerants, R134a and R1234yf, ...
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 ...
[EN] 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 ...
In this paper the performance of an Organic Rankine Cycle (ORC) module, which was designed and built for a specific power application, is experimentally characterized. The ORC tested satisfies the main specifications for ...
Six refrigerants are evaluated as low GWP replacements for R404A using different configurations, including two-stage system architectures. These refrigerants are selected according to similar characteristics to R404A, and ...
R1234yf and R1234ze(E) have been proposed as alternatives for R134a in order to work with low GWP refrigerants, but this replacement results generally in a decrease of the performance.
For this reason, it is interesting ...