Listar EMC_Articles por título
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Energy harvesting analysis in railway bridges: an approach based on modal decomposition
Elsevier (2021)In this paper the authors investigate the energy harvesting in railway bridges and analyse the performance under different operational conditions. An approximation based on modal superposition is proposed for the computation ... -
Energy impact evaluation of different low-GWP alternatives to replace R134a in a beverage cooler. Experimental analysis and optimization for the pure refrigerants R152a, R1234yf, R290, R1270, R600a and R744
Elsevier (2022-02-22)Due to the entry into force in 2014 of the European F-Gas Regulation n° 517/2014 and the subsequent Kigali amendment, the phase-out of the medium and high-GWP refrigerants has speeded up in all refrigeration fields. The ... -
Energy impact of the Internal Heat Exchanger in a horizontal freezing cabinet. Experimental evaluation with the R404A low-GWP alternatives R454C, R455A, R468A, R290 and R1270
Elsevier B.V. (2022-02-08)This work analyses the influence of the Internal Heat Exchan ger (IHX) on the energy performance of a vapor compression cycle associated with a freezing cabinet using different R404A low-GWP alternatives. Among them, the ... -
Energy improvements of CO2 transcritical refrigeration cycles using dedicated mechanical subcooling
Elsevier (2015-07)In this work the possibilities of enhancing the energy performance of CO2 transcritical refrigeration systems using a dedicated mechanical subcooling cycle are analysed theoretically. Using simplified models of the cycles, ... -
Energy influence of the IHX with R22 drop-in and long-term substitutes in refrigeration plants
Elsevier (2013-01-10)This work focuses on the investigation of new drop-in or long-term refrigerants for low evaporating temperatures that can be used as substitutes for HCFC-22, which is gradually being phased-out. This process is already in ... -
Energy influence of the internal heat exchangers placement in a cascade refrigeration plant. A theoretical and experimental analysis
Elsevier (2024-05-01)This paper deals with the analysis of the internal heat exchanger (IHX) impact on the energy performance of a cascade refrigeration plant (CRS) made up of two vapor compression cycles. Three IHX locations have been considered, ... -
Energy perfomance evaluation of R1234YF, R1234ze (E), R6600a, R290 and R152a as low-GWP R134a alternatives
Elsevier (2017-02)In 2014, the Directive 517/2014 was introduced by European Parliament to reduce the use of high-GWP greenhouse gases in the European area in order to limit global climate change in accordance with the objectives marked by ... -
Energy Rehabilitation of Social Housing in Vulnerable Areas Case study: a 1950s Building in a Medium-sized Mediterranean City
Ierek Press (2019-03)In the urban context, buildings play a key role as they are energy consumers. In well-established cities with a high percentage of aged building stock, the focus should lie on sensitive urban areas where the weakest ... -
Energy, exergy, and environmental (3E) analysis of a compound ejector-heat pump with low GWP refrigerants for simultaneous data center cooling and district heating
Elsevier Ltd. (2021-10-05)This work presents an energy, exergy, and environmental evaluation of a novel compound PV/T (photovoltaic thermal) waste heat driven ejector-heat pump system for simultaneous data center cooling and waste heat recovery for ... -
Energy, Exergy, and Environmental (3E) Analysis of Hydrocarbons as Low GWP Alternatives to R134a in Vapor Compression Refrigeration Configurations
MDPI (2021-07-05)The phase-down of hydrofluorocarbons and substitution with low global warming potential values are consequences of the awareness about the environmental impacts of greenhouse gases. This theoretical study evaluated the ... -
Enfoque metodológico para la innovación en empresas
Universidad de Piura (2011-09)Introduction. A working definition of confabulations would be to describe them as false memories that are the result of some problem in the process of retrieval, while the patient is unaware of their inaccuracy and genuinely ... -
Enhanced field-of-view integral imaging display using multi-Köhler illumination
Optical Society of America (2014)A common drawback in 3D integral imaging displays is the appearance of pseudoimages beyond the viewing angle. These pseudoimages appear when the light rays coming from each elemental image are not passing through the ... -
Environmental and cost performance of building’s envelope insulation materials to reduce energy demand: Thickness optimisation.
Elsevier (2017-09-01)Thermal insulation materials play an important role in the challenge of nearly zero-energy buildings thanks to their potential in reducing building’s energy demand and carbon emissions. However, increasing the thickness ... -
Environmental assessment of alternative municipal solid waste management strategies. A Spanish case study
Elsevier (2010)The aim of this study is to compare, from an environmental point of view, different alternatives for the management of municipal solid waste generated in the town of Castellón de la Plana (Spain). This town currently ... -
Environmental impact assessment of R-152a as a drop-in replacement of R-134a in a domestic refrigerator
Elsevier (2020-05-23)In the European Union F-gas Regulation limited the use of some refrigerants in several applications. Regarding the domestic refrigeration sector, the F-gas Regulation banned the use of refrigerants with GWP values higher ... -
Environmental implications of reprocessing agricultural waste into animal food: An experience with rice straw and citrus pruning waste
Sage (2022-10-03)The aim of this study is to conduct an environmental comparison, by applying the life cycle assessment (LCA) methodology, of two different compositions for animal foods each with two different nutritional contents (‘high’ ... -
Environmental performance of alternative end-of-life scenarios for electrical and electronic equipment: A case study for vacuum cleaners
Elsevier (2017-08)Extending the product life span of electrical and electronic equipment is considered an optimal strategy for resource conservation as consuming new resources to produce new appliances is avoided, and the amount of generated ... -
Environmental performance of ceramic tiles: Improvement proposals
Elsevier (2010)Ceramic tile is one of the most widely used materials in construction. Due to the increased demand for environmentally responsible construction and the ever more restrictive environmental requirements derived from the ... -
Environmental risk index: A tool to assess the safety of dams for leachate
Elsevier (2009)Dams for leachate store very toxic substances that contain a large amount of organic material and, probably, heavy metals; they therefore constitute an important threat to the environment. Existing models of environmental ...