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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 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 ...
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 ...
H∞ optimization of fluid viscous dampers for reducing vibrations of high-speed railway bridges
(Elsevier, 2014-04)
This work deals with the optimization of fluid viscous damper systems (FVDs) to reduce the resonant dynamic structural response of high-speed railway bridges by algebraic and numerical approaches. The presented method ...
Disassembly properties and material characterisation of household small waste electric and electronic equipment
(Elsevier, 2016-07)
This paper is focused on characterising small waste electric and electronic equipment, specifically small household appliances, from two different points of views: disassembly properties and material identification. The ...
How do organisations graphically communicate their sustainability? An exploratory analysis based on corporate reports
(Elsevier, 2021-10-01)
Corporate reports containing non-financial information are the main tool that organisations can use to communicate information concerning their sustainability performance to their stakeholders. The use of graphic media to ...
Variables that affect the environmental performance of small electrical and electronic equipment. Methodology and case study
(Elsevier, 2018-12)
This paper provides a methodology to identify the variables that affect the environmental performance of the life cycle of small electrical and electronic equipment (EEE). Different environmental indicators were contemplated ...
Numerical tooth contact analysis of gear transmissions through the discretization and adaptive refinement of the contact surfaces
(Elsevier, 2016)
The tooth contact analysis (TCA) is an important resource for the design of gear drives. This widely used analysis provides the contact pattern, contact path and the function of transmission errors that are directly related ...
Drop-in analysis of an internal heat exchanger in a vapour compression system using R1234ze(E) and R450A as alternatives for R134a
(Elsevier, 2015-10)
The IHX (internal heat exchanger) is introduced in some refrigeration systems in order to achieve higher energy performances. Results obtained vary greatly depending on the refrigerant used and working conditions. This ...
The Use of New Presentation Technologies in Electronic Sales Environments and Their Influence on Product Perception
(Springer, 2021)
New tools have appeared to improve interaction with products in online shopping: virtual reality (VR) applications, where customers are immersed in a wholly virtual environment; augmented reality (AR) applications, which ...