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Conversion of a direct to an indirect commercial (HFC134a/CO2) cascade refrigeration system: Energy impact analysis
(Elsevier, 2017)
Energy impact of conversion of a direct HFC134a/CO2 cascade refrigeration system to an indirect HFC134a-secondary fluid / CO2 cascade for commercial applications is experimentally analysed. Refrigeration systems, fully ...
Energy and environmental comparison of two-stage solutions for commercial refrigeration at low temperature: Fluids and systems
(Elsevier, 2015-01-15)
International agreements will restrict in the near future the use of high-GWP refrigerants in Europe. These restrictions will favour the implantation of refrigeration systems with low-GWP fluids, especially in applications ...
Methodology based on genetic heuristics for in-vivo characterizing the patient-specific biomechanical behavior of the breast tissues
(Elsevier, 2015)
This paper presents a novel methodology to in-vivo estimate the elastic constants of a constitutive model proposed to characterize the mechanical behavior of the breast tissues. An iterative search algorithm based on genetic ...
An experimental investigation on the characteristics of submerged horizontal gas jets in liquid ambient
(2014)
Gas injections into liquid are prevalent in the natural environment and are essential in industrial applications,
they can lead to complex flow. The flow structure and processes are essentially unsteady and turbulent.
In ...
An experimental study on bubble entrainment and flow characteristics of vertical plunging water jets
(Elsevier, 2014)
When a vertical liquid jet plunges into a liquid surface after passing through a surrounding gas phase it entrains a large amount of gas bubbles into the receiving pool, and forms a large submerged two-phase region with a ...
Attitude towards the incorporation of the selective collection of biowaste in a municipal solid waste management system. A case study
(Elsevier, 2014-12)
European waste legislation has been encouraging for years the incorporation of selective collection systems for the biowaste fraction. European countries are therefore incorporating it into their current municipal solid ...
Characterization and modeling of a scroll expander with air and ammonia as working fluid
(Elsevier, 2014-09)
This paper presents the experimental characterization and modeling of a scroll expander. The expander used here is a scroll compressor modified to work as an expander. It is characterized in two experimental setups using ...
Energetic evaluation of a CO2 refrigeration plant working in supercritical and subcritical conditions
(Elsevier, 2014-05)
Unlike other refrigerants, R744 (or carbon dioxide) has a very low critical temperature (30.98 °C) which hampers working in subcritical conditions especially when the environment is used as a heat rejection sink. Accordingly, ...
Characterization of Tin/Ethylene Glycol Solar Nanofluids Synthesized by Femtosecond Laser Radiation
(John Wiley & Sons, Ltd., 2016-11-22)
Solar energy is available over wide geographical areas and its harnessing is becoming an essential tool to satisfy the ever-increasing demand for energy with minimal environmental impact. Solar nanofluids are a novel solar ...
Life cycle assessment of composite materials made of recycled thermoplastics combined with rice husks and cotton linters
(Springer-Verlag, 2009)
The goal of this study is to analyze the environmental impact of new composite materials obtained from the combination of recycled thermoplastics (polypropylene [PP] and high-density polyethylene [HDPE]) and biodegradable ...