Listar Departament: Enginyeria Mecànica i Construcció por autoría "b1201c70-a59a-4297-8a3f-29b7f99dc0ef"
Mostrando ítems 21-31 de 31
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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 ... -
Modeling of a PCM TES Tank Used as an Alternative Heat Sink for a Water Chiller. Analysis of Performance and Energy Savings
Real Fernández, Antonio; Navarro-Esbrí, Joaquín; Mota-Babiloni, Adrián; Barragán Cervera, Angel; Doménech Ballester, Luis; Sánchez, Fernando; Maiorino, Angelo; APREA, CIRO MDPI (2019-09-24)Phase change materials (PCMs) can be used in refrigeration systems to redistribute the thermal load. The main advantages of the overall system are a more stable energy performance, energy savings, and the use of the ... -
Optimisation of high-temperature heat pump cascades with internal heat exchangers using refrigerants with low global warming potential
Mota-Babiloni, Adrián; Mateu-Royo, Carlos; Navarro-Esbrí, Joaquín; Moles, Fran; Amat-Albuixech, Marta; Barragán Cervera, Angel Elsevier (2018-12-15)High-temperature heat pumps (HTHPs) based on vapour compression can be used for industrial low-grade waste heat valorisation, which can aid in mitigating climate change. Currently, the performance of HTHPs ... -
Rehabilitación energética en edificación
Ruá, María José; Braulio-Gonzalo, Marta; Barragán Cervera, Angel Publicacions de la Universitat Jaume I (2017) -
Shell-and-tube evaporator model performance with different two-phase flow heat transfer correlations. Experimental analysis using R134a and R1234yf
Navarro-Esbrí, Joaquín; Moles, Fran; Peris, Bernardo; Barragán Cervera, Angel; Mendoza-Miranda, Juan Manuel; Mota-Babiloni, Adrián; Belman, Juan Elsevier (2014-01)This work presents a model of a shell-and-tube evaporator using R1234yf and R134a as working fluids. The model uses the effectiveness-NTU method to predict the evaporation pressure and the refrigerant and secondary fluid ... -
Techno-economic analysis of a PV/T waste heat–driven compound ejector-heat pump for simultaneous data centre cooling and district heating using low global warming potential refrigerants
Al-Sayyab, Ali; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Mota-Babiloni, Adrián Springer Nature (2022-08-05)A comprehensive techno-economic evaluation is evaluated based on an innovative compound ejector-heat pump system with PV/T (photovoltaic thermal) waste heat-driven. The aim of the system is simultaneous data centre cooling ... -
Theoretical comparison of low GWP alternatives for different refrigeration configurations taking R404A as baseline
Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín; Barragán Cervera, Angel; Molés Ribera, Francisco; Peris, Bernardo Elsevier (2014-04-25)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 ... -
Theoretical energy performance evaluation of different single stage vapour compression refrigeration configurations using R1234yf and R1234ze(E) as working fluids
Molés, Francisco; Navarro-Esbrí, Joaquín; Peris, Bernardo; Mota-Babiloni, Adrián; Barragán Cervera, Angel Elsevier (2014-05-10)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 ... -
Theoretical performance evaluation of ejector and economizer with parallel compression configurations in high temperature heat pumps
Mateu-Royo, Carlos; Navarro-Esbrí, Joaquín; Mota-Babiloni, Adrián; Barragán Cervera, Angel Elsevier (2020-07-25)Climate change evolution urges us to take action to reduce greenhouse gas emissions. As one of the main contributors, the industrial sector requires cleaner methods of heat production, such as high temperature heat pumps ... -
Thermodynamic evaluation of CO2 for ultra-low temperature refrigeration
Udroiu, Cosmin-Mihai; Mota-Babiloni, Adrián; Giménez-Prades, Pau; Barragán Cervera, Angel; Navarro-Esbrí, Joaquín Elsevier (2023-09-12)Carbon dioxide (CO2, R744) is the only refrigerant in the safest class by the ASHRAE 34 Standard in the group of natural refrigerants, with zero ozone depletion potential and a global warming potential of 1. It has been ... -
Utilización de software interactivo para el estudio de la refrigeración
Barragán Cervera, Angel; Navarro-Esbrí, Joaquín; Peris, Bernardo; Mateu-Royo, Carlos; Moles, Fran Servicio Editorial de la Universidad del País Vasco (2017-07)En este trabajo se expone la enseñanza de los sistemas de generación de frío mediante compresión de vapor mediante la utilización del software interactivo denominado «Frío». Se trata de un software gratuito que permite ...