Buscar
Assessment of Parametric Assembly Models Based on CAD Quality Dimensions
(Taylor & Francis, 2018)
An approach to convey CAD quality
-
oriented strategies to beginning
users
to create
bottom
-
up
assemblies
is described
.
The work builds on previous
efforts in the area of single part ...
Experimental study of an R1234ze(E)/R134a mixture (R450A) as R134a replacement
(Elsevier, 2015)
This work presents an experimental analysis of a non-flammable R1234ze(E)/R134a mixture (R450A) as R134a drop-in replacement. While R134a has a high GWP value (1430), the R450A GWP is only 547. The experimental tests are ...
Development and validation of a micro-fin tubes evaporator model using R134a and R1234yf as working fluids
(Elsevier, 2015)
This paper presents a model of shell and tube evaporator with micro-fin tubes using R1234yf and R134a. The model developed for this evaporator uses the ε-NTU method to predict the evaporating pressure, the refrigerant ...
Transverse vibrations in existing railway bridges under resonant conditions: Single-track versus double-track configurations
(Elsevier, 2010)
In this paper, the dynamic performance of a certain kind of existing bridge under the action of high-speed railway traffic is addressed. Short-to-medium-span simply supported structures are susceptible to experiencing ...
Dynamic performance of existing high-speed railway bridges under resonant conditions retrofitted with fluid viscous dampers
(Elsevier, 2010)
This paper deals with the application of Passive Control techniques to mitigate the excessive vibrations that short simply supported railway bridges may undergo under the circulation of High-Speed trains. A possible solution ...
Identifying design guidelines to meet the circular economy principles: A case study on electric and electronic equipment
(Elsevier, 2018-08)
This study presents a methodology that allows the analysis of how an existing product design meets the design guidelines required from the circular economy perspective, and which are the design guidelines that would need ...
Evaluation of energy density as performance indicator for thermal energy storage at material and system levels
(Elsevier, 2019-02-01)
The increase of the capacity factor of thermal processes which use renewable energies is closely linked to the implementation of thermal energy storage (TES) systems. Currently, TES systems can be classified depending on ...
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 ...
Rheology of Solar-Salt based nanofluids for concentrated solar power. Influence of the salt purity, nanoparticle concentration, temperature and rheometer geometry
(Elsevier, 2018)
Solar Salt-based nanofluids have attracted significant scientific interest in recent years due to their improved thermal properties, making them strong candidates as thermal energy storage materials and/or heat transfer ...
Assessing the sustainability of Best Available Techniques (BAT): methodology and application in the ceramic tiles industry
(Elsevier, 2013-07)
This paper presents a methodology for identifying sustainable and most appropriate BAT for a given industrial installation and sector. The methodology involves identification of environmental hot spots from an installation ...