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R-152a as an alternative refrigerant to R-134 a in domestic refrigerators: An experimental analysis
Elsevier (2018-09)Among all sectors of refrigeration, one of the most affected by the latest international regulations is the domestic refrigeration. Although for it has been suggested some solutions, such as the construction of household ... -
R-407H as drop-in of R-404A. Experimental analysis in a low temperature direct expansion commercial refrigeration system
Elsevier (2017-08)This work analyses experimentally the possibility of using the reduced GWP refrigerant R-407H (HFC family, GWP = 1378) as drop-in substitute of R-404A (HFC family, GWP = 3945) in low temperature centralized direct expansion ... -
R-454C, R-459B, R-457A and R-455A as low-GWP replacements of R-404A: Experimental evaluation and optimization
Elsevier (2019-06-12)This work evaluates R-454C, R-459B, R-457A and R-455A as R-404A low-GWP substitutes in a stand-alone commercial refrigeration system for fresh product under ISO 23953-2. System is tested with and without receiver. Charge ... -
R450A and R513A as lower GWP mixtures for high ambient temperature countries: Experimental comparison with R134a
Elsevier (2019-01-01)In recognition of the impact of the refrigeration sector on climate change, global commitments are achieved to replace hydrofluorocarbon substances with more planet-friendly alternatives. In this regard, countries with ... -
Ranking fuzzy cognitive map based scenarios with TOPSIS
Elsevier (2012-02)Scenarios describe events and situations that would occurred in the future real-world. Policy makers use scenario methods as a tool to build landscapes of possible futures at a national level. Based on these future visions, ... -
Re-thinking the validity of the past. Deconstructing what authenticity and integrity mean to the fruition of cultural heritage
Universitat Politècnica de València (2016-06-01)There is a lively ongoing debate on Critical Heritage Studies and the Authorised Heritage Discourse, but quite a few authors have viewed the issue from a canonical perspective where the wider Cultural Built Heritage visual ... -
Real-Time Path Planning Based on Harmonic Functions under a Proper Generalized Decomposition-Based Framework
Multidisciplinary Digital Publishing Institute (2021-06-02)This paper presents a real-time global path planning method for mobile robots usingharmonic functions, such as the Poisson equation, based on the Proper Generalized Decomposition(PGD) of these functions. The main property ... -
Recent developments and fire design provisions for CFST columns and slim-floor beams
Elsevier (2020-06-02)This paper summarizes the latest technical and scientific progresses on steel-concrete composite structures exposed to fire, presenting the recent research carried out on this subject and the progress of the design codes. ... -
Recent investigations in HFCs substitution with lower GWP synthetic alternatives: Focus on energetic performance and environmental impact
Elsevier (2017-10)egulation (EU) No. 517/2014 (F-gas Regulation) controls the use of HFCs in several applications. This paper reviews the recent investigations performed because of F-gas Regulation, with focus on lower global warming potential ... -
Reconstrucción Geométrica Tridimensional
Inegraf (1996)A pesar de los importantes avances en CAD, los diseñadores todavía prefieren el lápiz yel papel. Especialmente en las fases más conceptuales del diseño, en las que se baraja unacolección incompleta de requisitos e ideas ... -
Reconstruction of 3D surfaces from incomplete digitisations using statistical shape models for manufacturing processes
Springer (2022-03-18)Digitization of large parts with tight geometric tolerances is a time-consuming process that requires a detailed scan of the outer surface and the acquisition and processing of massive data. In this work, we propose a ... -
Refrigerant R32 as lower GWP working fluid in residential air conditioning systems in Europe and the USA
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 ... -
Relationship between green public procurement criteria and sustainability assessment tools applied to office buildings.
Elsevier (2020-03)Green Public Procurement (GPP) plays an important role in facing the challenge of reducing the environmental impacts from construction sector-related products, services and works, and creating environmental and innovative ... -
Relationship between meanings, emotions and product preferences. Application to ceramic tile floorings
Elsevier (2014-07)This work aims to validate a conceptual framework which establishes the main relationships between subjective elements in human–product interaction, such as meanings, emotions, product preferences, and personal values. The ... -
Relationship between the degree of creativity and the quality of design outcomes
Universidad Nacional de Colombia (2017-03)This work analyses the relationship between the degree of creativity, measured through the level of novelty and the level of usefulness, and the quality of the design outcomes. To do so, a total of twelve conceptual designs ... -
Relative Impacts of Methylammonium Lead Triiodide Perovskite Solar Cells Based on Life Cycle Assessment
Elsevier (2017-11-22)The environmental performance of four different device assembly procedures based on hybrid halide perovskite solar cell (PSC) were assessed from cradle to grave using life cycle assessment (LCA) methodology. In addition, ... -
Relaxing or arousing environments (through color and music) for fostering designer's creativity
Taylor & Francis (2022-08-08)Within the literature devoted to studying the influence of environment factors on people’s creativity, the majority analyzed these factors as isolated elements and assess individual’s creativity in general. The aim of this ... -
Relevance of grasp types to assess functionality for personal autonomy
Elsevier (2017-03)Study Design Cross-sectional research design. Introduction Current assessment of hand function is not focused on evaluating the real abilities required for autonomy. Purpose of the Study To quantify the relevance ... -
Reliability-based dynamical design of a singular structure for high energy physics experiments
Elsevier (2018-01)The present work presents a comprehensive design and dynamic calculation of singular metallic structures, part of the Neutrino Experiment NEXT. The experiment uses an electroluminescent TPC chamber, a high-pressure 136Xe ... -
Removal of mercury bonded in residual glass from spent fluorescent lamps
Elsevier (2013-01)The current technologies available for recycling fluorescent lamps do not completely remove the phosphor powder attached to the surface of the glass. Consequently, the glass contains the mercury diffused through the glass ...