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The effect of nature on designers' creativity, according to their personality profile
Elsevier (2020-04)The aim of this work is to demonstrate whether natural environments, either real or simulated, tend to enhance designers' creativity, and whether the effects differ depending on their personality profile. Numerous studies ... -
The Heritagization of a Mediterranean Vernacular Mountain Landscape: Concepts, Problems and Processes
Taylor & Francis (2018-10-04)The concepts of heritage and landscape have always changed or been developed based on the social context of the time. For decades, attempts have been made to find a pragmatic definition for a changing setting where values, ... -
The influence of design methodology on a designer’s emotional parameters and on design results
Universidad Nacional de Colombia (2016)This paper presents the results of an experiment carried out on 21 subjects, all of whom had an engineering background, with the aim of determining the influence of the designer’s attitude on the design process and on the ... -
The Mathematics of the Contagion: Applications of the SIR Model in the Study of Pandemics
Universidad Ana G. Méndez (2020-02-28)At a first glance, the epidemics phenomenon seems to be enormously complex, especially if we consider the number of factors that can influence its appearance and evolution. However, within the scope of complex systems, ... -
The relationship between personal intrinsic factors towards a design problem and the degree of novelty and circularity
Springer (2021-08-30)The aim of this work is to determine how personal intrinsic factors towards a design problem are related to novelty and circularity. A deeper understanding of this relationship will be a valuable aid when it comes to making ... -
The thermal performances of a refrigerator incorporating a phase change material
Elsevier (2019-02-06)In this paper, a Phase Change Material (PCM) has been incorporated within the cabinet of a refrigerator, attached to the bare tube evaporator placed below the racks, with the aim of analysing the variation of temperatures ... -
Theoretical comparison of low GWP alternatives for different refrigeration configurations taking R404A as baseline
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
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 evaluation of different high-temperature heat pump configurations for low-grade waste heat recovery
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 ... -
Theoretical Global Warming Impact Evaluation of Medium and High Temperature Heat Pumps Using Low GWP Refrigerants
MDPI (2021-08-01)This study provides a global warming impact analysis of environmentally friendly refrigerants used as replacements for R134a and R245fa. R290, R1234yf, R1234ze(E), R513A and R450A are considered as refrigerants to replace ... -
Theoretical performance evaluation of ejector and economizer with parallel compression configurations in high temperature heat pumps
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 ... -
Thermal energy storage of molten salt ebased nanofluid containing nano-encapsulated metal alloy phase change materials
Elsevier (2019-01-15)The availability of Thermal Energy Storage systems in Concentrated Solar Power plants makes them suitable to handle the gap between energy supply and power demand. Increasing the total thermal energy storage capacity of ... -
Thermo-economic optimization of small-scale Organic Rankine Cycle: A case study for low-grade industrial waste heat recovery
Elsevier (2020-10-01)This work is focused on a case study of a small-scale Organic Rankine Cycle (ORC) adopted for electricity production from low-grade industrial waste heat recovery. This kind of applications raises a great interest due to ... -
Thermochemical energy storage by consecutive reactions for higher efficient concentrated solar power plants (CSP): Proof of concept
Elsevier (2017-01-01)Concentrated solar power plants (CSP) combined with thermal energy storage (TES) offers the benefit to provide continuous electricity production by renewable energy feed. There are several TES technologies to be implemented, ... -
Thermodynamic Analysis of a CO2 Refrigeration Cycle with Integrated Mechanical Subcooling
MDPI (2020)Different alternatives are being studied nowadays in order to enhance the behavior of transcritical CO2 refrigeration plants. Among the most studied options, subcooling is one of the most analyzed methods in the last years, ... -
Thermodynamic analysis of a combined organic Rankine cycle and vapor compression cycle system activated with low temperature heat sources using low GWP fluids
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)
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 ... -
Thermodynamic analysis of the optimal operating conditions for a two-stage CO2 refrigeration unit in warm climates with and without ejector
Elsevier (2021-02-25)The natural refrigerant R744 seems to be the long term solution to be imposed in the food retail industry, where low and medium refrigeration temperatures are usually required, despite the technical difficulties related ... -
Thermodynamic evaluation of CO2 for ultra-low temperature refrigeration
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 ... -
Thermodynamic screening of alternative refrigerants for R290 and R600a
Elsevier (2020)Due to Regulation EU 517/2014 (F-Gas), the use of refrigerants with GWP higher than 150 was limited from 2015 on in small capacity refrigeration systems in Europe. Although refrigerants that dominate are R600a and R290 ...