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Safety factor nomograms for homogeneous earth dams less than ten meters high
(Elsevier, 2009)
Homogeneous earth dams that are waterproofed with geomembranes are a suitable option for storing water and other sorts of liquids, like leachates from landfills. Such dams do not require complicated engineering technical ...
Effects of Carbon Nanohorn Based Nanofluids Pool Boiling on Optical Properties and Wettability of Different Metal Surfaces
(Taylor & Francis, 2020-09-16)
Oxidized carbon nanohorn water based nanofluids are attracting more and more attention for solar harvesting applications because of their peculiar features: stable suspension without any surfactant, higher solar absorbance ...
Drift-flux model in a sub-channel of rod bundle geometry
(Elsevier, 2009)
In view of the practical interest of the drift-flux model for two-phase flow analysis, the distribution parameter and drift velocity constitutive equations have been obtained for subcooled boiling flow in a sub-channel of ...
Improvements in the cooling capacity and the COP of a transcritical CO2 refrigeration plant operating with a thermoelectric subcooling system
(Elsevier, 2019-06-05)
Restrictive environmental regulations are driving the use of CO2 as working fluid in commercial vapour compression plants due to its ultra-low global warming potential (GWP100 = 1) and its natural condition. However, at ...
CFD modelling and validation of upward bubbly flow in an adiabatic vertical pipe using the quadrature method of moments
(Elsevier, 2016)
An Eulerian–Eulerian approach was investigated to model adiabatic bubbly flow with CFD techniques. In
the framework of the OpenFOAM® software, a two-fluid model solver was modified to include a population
balance equation, ...
HCFO-1224yd(Z) as HFC-245fa drop-in alternative in low temperature ORC systems: Experimental analysis in a waste heat recovery real facility.
(Elsevier, 2020-02-15)
The organic Rankine cycle (ORC) has been growing in importance as a technology for producing electricity from low temperature waste and renewable heat sources. In small-scale applications, the most used working fluid has ...
Experimental analysis of R1234yf as a drop-in replacement for R134a in a vapor compression system
(2013-05)
This paper presents an experimental analysis of a vapor compression system using R1234yf as a drop-in replacement for R134a. In this work, we compare the energy performance of both refrigerants, R134a and R1234yf, in a ...
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 ...
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 ...
Comparison of different collection systems for sorted household waste in Spain
(Elsevier, 2010)
The purpose of this study was to identify the different selective collection systems implemented in Spanish cities and to analyse the efficiency and extent to which the targets proposed by current law are met in each case. ...