Paraciclisme: estudi sobre els processos d’integració en l’àmbit internacional

El paraciclisme o ciclisme adaptat és una de les primeres modalitats esportives adaptades integrades en la federació internacional de l’esport corresponent. Aquest esport és un bon exemple a l’hora d’estudiar els processos d’integració en les federacions uniesportives. L’objectiu de l’estudi és analitzar el grau d’implantació d’aquests processos en el ciclisme en l’àmbit internacional i conèixer els indicadors concrets que el caracteritzen. L’estudi es va dur a terme en el Campionat del Món de Paraciclisme en ruta, disputat a Baie-Comeau (Canadà, 2010). Van participar-hi 13 països. Es va administrar un qüestionari ad hoc de 20 preguntes a un representant qualificat de cada expedició, que avaluava els àmbits de gestió, necessitats, aspectes clau i opinió sobre els processos d’integració del ciclisme al seu país. En el 61,5 % dels països estudiats era la federació nacional de ciclisme qui gestionava el ciclisme adaptat, encara que només el 30 % tenen totes les competències transferides a les federacions uniesportives. Les discapacitats menys integrades van ser l’auditiva i la intel·lectual. Els aspectes més valorats en els processos van ser la determinació de normatives específiques, la formació de tècnics esportius, l’existència d’una institució garant dels processos i el suport econòmic específic. El procés d’integració va ser avaluat de forma molt positiva pel 87,5 % dels enquestats: fins i tot sembla derivar en un augment del nombre de llicències i del rendiment esportiu. Aquests indicadors poden ser extrapolables a altres esports i útils per afavorir els processos d’integració al nostre país

Energy Management by Dynamic Monitoring of a Building of the University of Valladolid

Producción CientíficaThe continuous increase of energy consumption in buildings enhances the importance of implementing energy management systems within the building facilities. These tools allow us to know precisely both energy consumption and use within the building. Monitoring energy consumption provides a clear view not only of the amount, but also of where and when energy is consumed in the building. Besides, a rear analysis of this information allows us to deduce whether there exists an inappropriate consumption, and thus the possibilities of improving building efficiency. A monitoring tool has been implemented within an academic building at the University of Valladolid, applying technological resources of Information Technology and Communication through dynamic monitoring of electrical and thermal parameters. Results obtained are gathered and analysed to directly contribute to improve the use of energy, reduce costs associated with its generation and use, and improve the thermal comfort of the building occupants. Keywords: Dynamic monitoring, energy performances, energy management, reduction of building consumption

modelling the long-term effect of climate change on a zero energy and carbon dioxide building through energy efficiency and renewables.

Producción CientíficaOver the last few years, studies have predicted an increase in the overall air temperature due to climate change. Today’s society is already sensing this change, which could have a negative impact on the envi- ronment and effort s are being made to seek all possible measures to curb it. One of the consequences of this temperature rise would be its effect on indoor comfort within buildings, which may cause higher energy consumption and operational costs, while reducing the useful lifetime of air-conditioning equip- ment. In this paper, an existing zero energy building (ZEB) is being studied to understand the possible effects of climate change on its zero energy status. The building is also a zero carbon building because all of its generated energies come from renewable sources (biomass, geothermal and solar photovoltaic systems). The building LUCIA has the highest innovative technologies in energy systems, design and con- struction elements and is currently considered as one of the top three buildings with the highest LEED certification in the world. According to current European regulations, buildings will tend to become self- sufficient in terms of energy after 2020, and therefore this study will help us to understand the changes in energy consumption within a long-term timeframe, for such zero-energy buildings. With the aid of the Design Builder version 5 software and its EnergyPlus building energy engine, a building model is simu- lated and energy consumption is analyzed for the years 2020, 2050 and 2080 timeframe. The climatic conditions pertain to the city of Valladolid, Spain, which has a continental climate, while the expected changes in climatic conditions have been produced through the methodology developed by the University of Southampton, called CCworldweathergen. Results have shown that the cooling demand would significantly increase for the years 2050 and 2080, while space heating would drop. This will increase the overall demand for burning more biofu- els to cover the added demand in absorption cooling systems. Moreover, the previously excess generated electricity of the building by photovoltaics would then be totally consumed within the building due to increased demand. This implies that the installed systems will operate for longer hours, which will in- crease maintenance and replacement costs. As a result of this study, it becomes possible to quantify the expected changes in energy consumption and prepare preventive actions to anticipate this change, while improving the management and control of both the energy systems and the building

Seasonality and Efficiency of the Hotel Industry in the Balearic Islands: Implications for Economic and Environmental Sustainability

Tourism seasonality generates negative environmental and economic impacts. This paper analyzes the effects of seasonality on the efficiency of the hotel industry in the Balearic Islands (Spain). To that end, a sample of hotel establishments is divided into two groups (those that close down during the off-season and those that do not). Data envelopment analysis (DEA) is applied to assess the radial efficiency of each of the selected hotels; then, directional distance functions (DDFs) are used to measure the degree of efficiency with which these hotels use each of the inputs that form part of their production process. To the best of our knowledge, this is the first time that the said technique has been applied to the hospitality industry to examine the effects of seasonality. The results of this study suggest that those establishments that do not close down their operations are markedly more efficient than the ones that do. Moreover, they are more efficient in the use of each input. Therefore, a reduction in the levels of tourism seasonality would improve the economic sustainability of the hotels and reduce the environmental pressure at peak times. Finally, in line with the theoretical hypotheses formulated, the results regarding the specific efficiency levels for each input show that the greater the degree of flexibility with which these inputs are used, the higher the efficiency

PV Energy Performance in a Sustainable Campus

Producción CientíficaThe challenge of photovoltaic integration as the basis of an energy generation system has been achieved and carried out by the University Autónoma de Cali, Colombia, using an avant-garde energy technology model. This innovative sustainable campus not only fulfills its purpose as an advanced model of a renewable energy integration system, it also aims at environmental research, e-mobility, and energy efficiency. This paper describes how the university implements the technological innovation of integrating the photovoltaic system installation in a university campus, showing its relevant contribution to the electricity generation in the campus buildings by analyzing the different electrical parameters together with the system performance indicators. The implementation of technological solutions has allowed the generation of a quantity of renewable energy within the campus, supplying a sustainable energy response based on energy efficiency and carbon emissions savings. This innovation has been applied following the international standards for the evaluation of the energy performance of photovoltaic systems (IEC 61724), reaching very optimal values for this type of renewable solution. In this paper, the dynamic monitoring of several parameters has been carried out in order to analyze the energy performance, and an energy simulation has been used to achieve optimal solutions and to obtain the perfect modeling of the system. This study shows how to evaluate the performance of an integration of a photovoltaic system in a smart university campus, according to international standards. It achieves complete viability due to its economic savings, energy efficiency and reduction of carbon emission

Sustainable savings applied to operating room ventilation at hospitals located in different climatic zones, through control and regulation strategies

Producción CientíficaIn hospitals, operating rooms are energy-intensive spaces, due to the high flow of outside air required to achieve the necessary indoor air quality. Operating rooms demand ventilation continuously, despite periods of low daily surgical activity. However, by controlling ventilation during inactive periods in the operating room, significant energy savings can be achieved, avoiding penalties on IAQ levels. This paper evaluates the energy savings achieved by introducing ventilation flow control and regulation systems in operating rooms of hospitals located in different climatic zones within Spain. In addition, emissions and economic savings have also been evaluated. Two control and regulation strategies of the air flow to be supplied and extracted in the operating rooms, during periods of inactivity, are studied and include regulation by schedule and regulation by occupancy. Data from a 900-bed university hospital center are used as a reference to evaluate the average occupancy of the operating rooms, and the energy consumption, thus validating the model for calculating the demand of a typical operating room. The energy savings for the regulation by occupancy are 37.5%, and the regulation by schedule are 40% of the annual demand, with respect to an operating room working permanently

Experimental Study and Analysis of Thermal Comfort in a University Campus Building in Tropical Climate

Producción CientíficaThis study presents the evaluation of the performance and acceptability of thermal comfort by students in the classrooms of a university building with minisplit-type air-conditioning systems, in a tropical climate. To carry out the study, temperature and humidity measurements were recorded, both outside and inside the selected classrooms, while the students were asked to complete thermal surveys on site. The survey model is based on the template proposed by Fanger and it was applied to a total number of 584 students. In each classroom, the Predicted Mean Vote (PMV) and the Predicted Percentage Dissatisfied (PPD) were estimated according to Fanger’s methodology, as well as the Thermal Sensation Vote (TSV) and the Actual Percentage Dissatisfied (APD), which were obtained from the measurements and the surveys. The results of this study showed that the PMV values, although they may vary with the insulation of the clothing, do not affect the TSV. Furthermore, comparing PMV vs. TSV scores, a 2 °C to 3 °C difference in operating temperature was found, whereby the thermal sensitivity for TSV was colder, so it could be assumed that the PMV model overestimates the thermal sensitivity of students in low-temperature conditions. In addition, an acceptability by 90% with thermal preferences between 23 °C and 24 °C were also found. These results indicate that it is possible to increase the temperature set point in minisplit-type air-conditioning system from 4 °C to 7 °C with respect to the currently set temperatures, without affecting the acceptability of the thermal environment to the students in the building

Energy Consumption Reduction of a Chiller Plant by Adding Evaporative Pads to Decrease Condensation Temperature

Producción CientíficaThe high energy consumption of cooling systems justifies the need for strategies to increase the efficiency of the facilities, in order to reduce the related CO2 emissions. This study aims to improve the performance and reduce the energy consumption of an 8.6 MW air cooled chiller. This installed capacity is biased due to the screw compressors, of 2.98 Energy Efficiency Ratio (EER) at full load (characteristics provided by the manufacturer). The chiller unit has been modified by placing evaporating cooling pads before the condensing coils. The chiller has been monitored for three months, recording over 544,322 measurements (5 min-step data), with and without the evaporative cooling pads, to assess the performance. Data comparison has been done by selecting two days (with and without evaporative panels) with the same health care load and temperatures. Implementing the proposed strategy yields an improvement in the European Seasonal Energy Efficiency Ratio (ESEER) from 3.69 to 4.83, while the Total Equivalent Warming Impact (TEWI) decreases about 1000 tCO2. Energy savings of up to 32.6 MWh result into a payback period lower than 2 years.Junta de Castilla y León (project VA272P18

IAQ improvement by smart ventilation combined with geothermal renewable energy at nZEB

Producción CientíficaThe building sector has the responsibility of being a generator of high carbon emissions, due to inefficient energy consumption in the last decades. For the European Union (EU) and the building sector, this pollution has generated a great impact and concern, establishing objectives in sustainability and energy efficiency in the short term. The EU, committed to energy sustainability, has established several guidelines, aiming at reducing carbon emissions. For this reason, European directives have been published to increase energy efficiency and sustainability in buildings, with EPBD 2018/844/EU being the most up-to-date regulation. This directive mainly focuses on reducing carbon emissions and increasing the efficiency of energy systems in buildings, but it also refers to the importance of establishing indoor air quality indices and smart management of ventilation systems. Before this directive was published, many of the implemented ventilation strategies did not consider the indoor air quality (IAQ) in their scope of established comfort parameters. Therefore, this study analyses the performance of the ventilation system, controlled smartly to cover the demand and the established IAQ rates via CO2 ppm, through renewable geothermal energy systems. This study has been carried out at the LUCIA building, a near Zero Energy Building (nZEB), which belongs to the University of Valladolid, Spain. This building stands out for being one of the most sustainable buildings in the world, according to LEED certification, ranking as the most sustainable building in the northern hemisphere. This building to study is equipped with cutting-edge energy systems, with zero carbon emissions. Several parameters have been analysed (air speed, enthalpy, air flow, temperature, humidity, kWh, climate data, etc.) enabling an energy optimisation of the combined systems. All the monitoring data obtained by the smart management have been analysed, providing favourable outcomes, due to the establishment of IAQ levels, according to the EPBD 2018/844/EU. After this study, the smart management of ventilation combined with removable geothermal energy can be exported as a strategy to reach the established IAQ levels through zero carbon systems.Junta de Castilla y León - FEDER (VA272P18

Squamous basaloid carcinoma larynx. A case report

[EN] Introduction and objective: basaloid squamous carcinoma comprises less than 1% of squamous cell carcinomas of the head and neck. Since it was described in the early eighties, it has been published around 200 cases worldwide. In various medical articles its reported as a very aggressive form of squamous cell carcinoma, because it is usually diagnosed in advanced stages. We present a new case of carcinoma basaloid of the larynx. Case description: male smoker with an exophytic lesion in the left piriform sinus whose pathology was basaloid carcinoma, T1N0M0 of supraglottis. Our patient is disease free after three years. Our surgery was left neck dissection and pharyngectomy. Discussion: We reviewed the medical literature about prognosis, involvement of regional lymph nodes, survival, pathology, differential diagnosis and treatment. Conclusions: There are controversies regarding its prognostic. It is generally considered an aggressive tumor with a high percentage of regional metástasis at the time of diagnosis. There is no consensus for treatment.[ES] Introducción y objetivo: el carcinoma basaloide escamoso representa menos del 1% de los carcinomas epidermoides de cabeza y cuello. Desde que fue descrito en la década de los años ochenta, se han publicado alrededor de unos 200 casos por todo el mundo. En los diferentes artículos médicos se describe como una forma muy agresiva de carcinoma epidermoide, debido a que se diagnostica habitualmente en estadios avanzados. Presentamos un nuevo caso de carcinoma basaloide laríngeo. Descripción del caso: varón fumador, con una lesión exofítica en seno piriforme izquierdo cuya anatomía patológica fue de carcinoma basaloide. Clasificado como T1N0M0 de supraglotis. Libre de enfermedad a los tres años tras realizarse faringectomía lateral y vaciamiento cervical izquierdo. Discusión: revisamos la literatura médica al respecto sobre su pronóstico, afectación de ganglios regionales, supervivencia, anatomía patológica, diagnostico diferencial y tratamientos efectuados. Conclusiones: existen controversias en cuanto a su pronóstico. En general se considera un tumor agresivo con un alto porcentaje de mestástasis regionales en el momento del diagnóstico. No existe un consenso para su tratamiento