Browsing EMC_Articles by Author "18f37810-e30c-433e-94ba-6b489f9f9f65"
Now showing items 21-30 of 30
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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 ... -
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 ... -
Performance evaluation of an Organic Rankine Cycle (ORC) for power applications from low grade heat sources
Peris, Bernardo; Navarro-Esbrí, Joaquín; Moles, Fran; Martí, José Pascual; Mota-Babiloni, Adrián Elsevier (2015-01-22)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 ... -
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 ... -
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 ... -
Theoretical evaluation of different high-temperature heat pump configurations for low-grade waste heat recovery
Mateu-Royo, Carlos; Navarro-Esbrí, Joaquín; Mota-Babiloni, Adrián; Amat-Albuixech, Marta; Moles, Fran Elsevier (2018-06)The introduction of high-temperature heat pumps for waste heat recovery with low GWP refrigerants can reduce the greenhouse gas emissions in the industrial sector. This article evaluates the energy performance and the ... -
Thermodynamic analysis of a combined organic Rankine cycle and vapor compression cycle system activated with low temperature heat sources using low GWP fluids
Moles, Fran; Navarro-Esbrí, Joaquín; Peris, Bernardo; Mota-Babiloni, Adrián; Kontomaris, Konstantinos Elsevier (2015-08-05)A combined organic Rankine cycle and vapor compression cycle (ORC–VCC) system activated by low temperature heat sources was studied. Two low GWP fluids were considered as working fluids for the VCC and two different low ... -
Thermodynamic analysis of low GWP alternatives to HFC-245fa in high-temperature heat pumps: HCFO-1224yd(Z), HCFO-1233zd(E) and HFO-1336mzz(Z)
Mateu-Royo, Carlos; Navarro-Esbrí, Joaquín; Mota-Babiloni, Adrián; Amat-Albuixech, Marta; Moles, Fran Elsevier (2019-04)This paper analyses the feasibility of HCFO-1224yd(Z), HCFO-1233zd(E) and HFO-1336mzz(Z), three low global warming potential (GWP) refrigerants, as alternatives to HFC-245fa in high-temperature heat pump (HTHP) systems for ... -
Ultralow-temperature refrigeration systems: Configurations and refrigerants to reduce the environmental impact
Mota-Babiloni, Adrián; Joybari, Mahmood Mastani; Navarro-Esbrí, Joaquín; Mateu-Royo, Carlos; Amat-Albuixech, Marta; Moles, Fran Elsevier (2019-11-18)Several environmental protection policies have been enforced restricting working fluids with high global warming potential (GWP) values used in many types of refrigeration and heat pump systems. However, ultralow-temperature ...