A5014289736- Greenhouse Technology and Climate Control
- Light effects on plants
- Solar Radiation and Photovoltaics
- Thermal Radiation and Cooling Technologies
- Solar Thermal and Photovoltaic Systems
- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- Radioactivity and Radon Measurements
- Global Energy and Sustainability Research
- Solar and Space Plasma Dynamics
- Urban Heat Island Mitigation
- CO2 Sequestration and Geologic Interactions
- Seismic Imaging and Inversion Techniques
- Geothermal Energy Systems and Applications
- Phase Equilibria and Thermodynamics
- Science and Science Education
- Heat Transfer and Optimization
- Hydrocarbon exploration and reservoir analysis
- Radiation Effects and Dosimetry
- Photovoltaic System Optimization Techniques
- Heat and Mass Transfer in Porous Media
- Geochemistry and Geologic Mapping
- Electromagnetic Fields and Biological Effects
- Education Pedagogy and Practices
- Solar Energy Systems and Technologies
University of Évora
2003-2021
National Institute of Engineering, Technology and Innovation
1980-1983
Fossil fuels depletion and increasing environmental impacts arising from their use call for seeking growing supplies renewable nuclear primary energy sources. However, it is necessary to simultaneously attend both the electrical power needs specificities of transport industrial sector requirements. A major question posed by shift away traditional fossil towards sources lies in matching demand with daily seasonal oscillation intermittency these natural fluxes. Huge storage requirements become...
Abstract. In this paper, we report the observation of a significant decrease vertical component atmospheric electrical field in Évora region (Portugal) during M = 4.1 Sousel earthquake 27 March 2010. The epicentre was 52 km from site, which falls within theoretical preparation radius. A simple interpretation based on hypothetical radon emissions is presented, and future experiments required to elucidate these observations are outlined. To our knowledge, first reported preceding an earthquake.
<p>This study presents an analysis of data from various radon anomalies that were compiled by Toutain and Baubron [1999], to investigate their relationships with the earthquake parameters magnitude distance epicenter. The simple methodology applied here reveals significant positive correlation between duration ratio preparation radius sensor event This shows important relationship seismic activity at a local scale. consequences implications this are discussed.</p>
Mineral deposits are considered as natural capital whose value can be assessed in exergy terms. Historical industry experience provides evidence that exploitation of mineral and the beneficiation ores essentially energy intensive. The persisting decline grade developed demands increasing replacement processing costs. results demonstrate how far processed concentrates from ideal behaviour, technologies reversibility conditions. resources declining quality for commodities imply a long time...
Abstract. This paper presents a work that aims to monitor seismo-electromagnetic phenomena in the Western Part of Eurasia-Nubia Plate Boundary. region has significant tectonic activity combined with relatively low electromagnetic noise levels, rendering high quality measurements possible. An overview seismicity this is presented and research plan discussed accordingly.
This paper reports a study on the use of non-flow air-groundwater exergy potential for improving heat pump performance. It is shown that air/groundwater temperature differences order 15°C, energy savings up to 50% may be expected pumps operating either in heating mode or cooling mode. also reduction required drive proportional square root potential. In Evora region, peaks during wintertime and summertime. concluded attractive purposes wintertime, when can reach 20%, summertime they 10%.
Since carbonates are at a lower energy state than free CO 2 , storage through carbonation of silicate rocks is thermodynamically favoured and proceeds spontaneously by releasing heat. In an in-situ injection site, the heat released in these exothermic reactions can be exploited geothermal power-plant, effectively contributing toward economic viability process. Our calculations suggest possibility generating up to about 25 TWh electrical while capturing permanently 240 Mton per 1 km 3...
The analysis of copper production data from the Iberian Pyrite Belt allows identification different phases mining in last 70 years, corresponding to technological and economic changes. statistical indicate that belt has passed its peak. This is result depletion existing reserves, with ores progressively lower grades. These reserves are only being replaced at a slow rate, because exploration success been decreasing. despite large effort, as evidenced by length recent holes. probably implies...
The dielectric behavior of rocks affected by the known phase transition supercooled water is main problem we analyzed. Three different granitic were used to perform measurements in frequency range from 100 Hz 1 MHz and temperatures 100–350 K. Thin cylindrical samples prepared, circular electrodes established using silver conductive paint. A clear change appears at [Formula: see text] for one samples. This coincides with water. Tightly bounded confined pores rock do not crystallize 273 K, but...