This page has only limited features, please log in for full access.
The value of a house depends not only on the quality of the construction elements but also on the functionality of its installations. Making mistakes during the design and even execution phases of installations in newly built homes is common. This paper determines, catalogues, and quantifies faults in electrical and telecommunications installations in dwellings based on owners’ complaints and using the ‘learning from faults’ philosophy. To this end, 154 complaints concerning these installations in all of Spain were analyzed and protocolized. The results show that, in all types of dwellings, the most common fault was ‘alterations and malfunctions’ (81%), followed by ‘incorrect or lack of placement of elements’ (14%). The pathological origin with the greatest presence in the research was ‘shortcomings and omissions in the installation’ (40%) and ‘anomalies in the installation’ (36%). Moreover, all functional deterioration processes as well as the type of dwelling where each of these parameters occurred most were defined and quantified (association between each fault and its cause). Finally, the ‘probability factor’ (PF) was determined, which numerically quantifies the probable existence of complaints according to four ranges. The results will pave the way for more precise inspections during the construction phase.
Manuel Carretero-Ayuso; Gonzalo Sánchez-Barroso; Jaime González-Domínguez; Justo García-Sanz-Calcedo. Failure Modes in Electricity and Telecommunication Facilities in Dwellings in Spain. Applied Sciences 2021, 11, 5274 .
AMA StyleManuel Carretero-Ayuso, Gonzalo Sánchez-Barroso, Jaime González-Domínguez, Justo García-Sanz-Calcedo. Failure Modes in Electricity and Telecommunication Facilities in Dwellings in Spain. Applied Sciences. 2021; 11 (11):5274.
Chicago/Turabian StyleManuel Carretero-Ayuso; Gonzalo Sánchez-Barroso; Jaime González-Domínguez; Justo García-Sanz-Calcedo. 2021. "Failure Modes in Electricity and Telecommunication Facilities in Dwellings in Spain." Applied Sciences 11, no. 11: 5274.
Computed tomography (CT) equipment uses a non-invasive radiology procedure to diagnose by generating images. This research aims to determine the degradation matrix and estimate the condition over time to the CT equipment to optimise their maintenance through Markov chain. The database failure history of four Spanish hospitals between 2016 and 2020 was used for this analysis. Five states of condition were used to develop the Markov degradation model, which enables the degradation of CT equipment to be properly estimated. It was found that their degradation can be modelled by Markov chains. The result is a degradation matrix with which the useful life of the equipment, the policy and the frequency of the maintenance can be established. Thus, the maintenance operations needed to reduce the equipment downtime can be determined.
Jaime González-Domínguez; Gonzalo Sánchez-Barroso; Juan Aunión-Villa; Justo García-Sanz-Calcedo. Markov model of computed tomography equipment. Engineering Failure Analysis 2021, 127, 105506 .
AMA StyleJaime González-Domínguez, Gonzalo Sánchez-Barroso, Juan Aunión-Villa, Justo García-Sanz-Calcedo. Markov model of computed tomography equipment. Engineering Failure Analysis. 2021; 127 ():105506.
Chicago/Turabian StyleJaime González-Domínguez; Gonzalo Sánchez-Barroso; Juan Aunión-Villa; Justo García-Sanz-Calcedo. 2021. "Markov model of computed tomography equipment." Engineering Failure Analysis 127, no. : 105506.
Users’ journeys to healthcare centers generate high greenhouse gases (GHG) emissions into the atmosphere. The aim of this work is to calculate the carbon footprint generated by these trips, considering different means of transport and average distances traveled. For this purpose, data corresponding to six rural healthcare centers in Extremadura (Spain), which provide health services to less than 15,000 inhabitants, were collected. Buildings that have been considered had a built-up area between 1,328 and 3,192 m2 and staff’s size ranged from 14 to 38. An average of 400 people was surveyed daily at each healthcare center for 25 random days over one year. Average results are 12.93 kg CO2eq/inhabitant, 50.52 kg CO2eq/m2, 2.97 kg CO2eq/user and 1.08 tCO2eq/worker. Equations for estimating GHG emissions in terms of functional parameters of the healthcare centers were also defined. The transportation-to-healthcare-centers breakdown entails travel by foot (33.5%), by single car (40.4%), by shared car (25.1%) and alternative vehicles (less than 1%). Moreover, it was found that sharing vehicles reduce average annual emissions by 20.5%. Finally, savings obtained in different scenarios increasing pedestrian were analyzed. This study allows to identify opportunities to reduce these GHG emissions, which lead to a lower environmental impact of health activity and is useful to calculate carbon footprint due to the operation of a healthcare center.
G. Sánchez-Barroso; J. González-Domínguez; J. García-Sanz-Calcedo. Impact of urban mobility on carbon footprint in healthcare centers in Extremadura (Spain). International Journal of Sustainable Transportation 2021, 1 -18.
AMA StyleG. Sánchez-Barroso, J. González-Domínguez, J. García-Sanz-Calcedo. Impact of urban mobility on carbon footprint in healthcare centers in Extremadura (Spain). International Journal of Sustainable Transportation. 2021; ():1-18.
Chicago/Turabian StyleG. Sánchez-Barroso; J. González-Domínguez; J. García-Sanz-Calcedo. 2021. "Impact of urban mobility on carbon footprint in healthcare centers in Extremadura (Spain)." International Journal of Sustainable Transportation , no. : 1-18.
Ceramic curved tile roofs (CCTR) have been used in Spain for ages. This roofing system is very common in Primary Healthcare Centers in Extremadura (Spain). The main objective of this research is to analyze the condition-based maintenance (CBM) of CCTR of Primary Healthcare buildings. Once the condition-based maintenance is analyzed, the optimal maintenance policy and frequency is obtained. A sample of 20 Primary Healthcare Centers in Extremadura (Spain) were evaluated using Markov chains, which represent a useful technique to analyze the influence of frequency and the initial year of maintenance for the increase of the CCTR service life. This study found that the service life of the CCTR can be extended by 8 years using non-periodic condition-based maintenance with a high level of reliability. The end of the service life of this system was also calculated, with a maximum estimated replacement time of about 39 years. Therefore, the maintenance program can be monitored to optimize the operation costs.
Jaime González-Domínguez; Gonzalo Sánchez-Barroso; Justo García-Sanz-Calcedo; Milan Sokol. Condition-based maintenance of ceramic curved tiles roof in Primary Healthcare buildings using Markov chains. Journal of Building Engineering 2021, 43, 102517 .
AMA StyleJaime González-Domínguez, Gonzalo Sánchez-Barroso, Justo García-Sanz-Calcedo, Milan Sokol. Condition-based maintenance of ceramic curved tiles roof in Primary Healthcare buildings using Markov chains. Journal of Building Engineering. 2021; 43 ():102517.
Chicago/Turabian StyleJaime González-Domínguez; Gonzalo Sánchez-Barroso; Justo García-Sanz-Calcedo; Milan Sokol. 2021. "Condition-based maintenance of ceramic curved tiles roof in Primary Healthcare buildings using Markov chains." Journal of Building Engineering 43, no. : 102517.
Optimization of material resources, energy efficiency and reduction of environmental impact are basic aspects in selection of a construction system. The aim of this study is to evaluate the environmental impact generated by different shielding systems for walls of an X-ray room in healthcare buildings. Eight commercial construction systems for anti-X shielding were analysed. A Life Cycle Assessment (LCA) was performed by SimaPro using the Ecoinvent database, and a single-score damage category analysis was performed for midpoint and endpoint levels. Prices of installation and working time employed in the construction of a functional unit of each system were obtained. Solutions with clay brick, cast-in-place reinforced concrete and sprayed concrete were the most favourable for the different categories. Sprayed concrete obtained 6.739 points/m2 of against 165.12 points/m2 of rolled steel option. The damage to human health occupies between 41% and 87% of the total impact in the protection areas. The impact category of human toxicity is also the broadest in the midpoint approach. Considering time and cost of implementation, clay brick solutions proved to be the most favourable, along with cast-in-place reinforced concrete and barite concrete. System #6 is the most environmentally friendly, 1.6 times less than the next one (which is #4), although its unit price is 1.94 times the cheapest (which is #2) and its execution time is 1.89 times the lowest (which is #2 again). The knowledge generated in this study will improve investment decision making for the planning departments of the Sanitary Systems, obtaining an economic, social and environmental benefit. The main novelty of the work lies in the object of the study (X-ray room) as well as in the integration of LCA and economic aspects.
Gonzalo Sánchez-Barroso; Manuel Botejara-Antúnez; Justo García-Sanz-Calcedo; Francisco Zamora-Polo. A life cycle analysis of ionizing radiation shielding construction systems in healthcare buildings. Journal of Building Engineering 2021, 41, 102387 .
AMA StyleGonzalo Sánchez-Barroso, Manuel Botejara-Antúnez, Justo García-Sanz-Calcedo, Francisco Zamora-Polo. A life cycle analysis of ionizing radiation shielding construction systems in healthcare buildings. Journal of Building Engineering. 2021; 41 ():102387.
Chicago/Turabian StyleGonzalo Sánchez-Barroso; Manuel Botejara-Antúnez; Justo García-Sanz-Calcedo; Francisco Zamora-Polo. 2021. "A life cycle analysis of ionizing radiation shielding construction systems in healthcare buildings." Journal of Building Engineering 41, no. : 102387.
Weather conditions influence urban mobility and alter greenhouse gas emissions. The aim of this paper is to analyse the impact of carbon footprint derived from the use of private vehicles in Extremadura (Spain), focusing on weather-influenced transport to rural healthcare centres. This new understanding will help to improve predictions of the impact of anthropogenic emissions. A retrospective research method was proposed to analyse the surveys carried out between April-2019 and March-2020 in three healthcare centres where the number of users are ranged from 5376 to 11,980. A total of 22,541 patients were interviewed about the vehicle utilised to receive health assistance. Furthermore, average temperature, mean relative humidity and quantity of rain were collected to examine the correlation with CO2 emissions from transport. Mathematical expressions are proposed to estimate the daily CO2 emissions per user as a function of both temperature and relative humidity. The variation rate in the amount of emissions with respect to weather conditions is quantified. Emissions significantly decreased by 25% due to an increase of transport on foot at temperatures above 20 °C and relative humidity below 60%. The relationship between climate variables and transport mode choice is discussed to formulate policies and strategies that stimulate active transport. The influence of meteorological conditions was quantified separately, which were −8.6 g CO2eq/°C, +3.4 g CO2eq/%RH and +8.8 g CO2eq/mm rain. The findings of this research provide information to expand scope of Life Cycle Analyses of health infrastructures.
G. Sánchez-Barroso; J. González-Domínguez; J. García-Sanz-Calcedo; M. Sokol. Impact of weather-influenced urban mobility on carbon footprint of Spanish healthcare centres. Journal of Transport & Health 2021, 20, 101017 .
AMA StyleG. Sánchez-Barroso, J. González-Domínguez, J. García-Sanz-Calcedo, M. Sokol. Impact of weather-influenced urban mobility on carbon footprint of Spanish healthcare centres. Journal of Transport & Health. 2021; 20 ():101017.
Chicago/Turabian StyleG. Sánchez-Barroso; J. González-Domínguez; J. García-Sanz-Calcedo; M. Sokol. 2021. "Impact of weather-influenced urban mobility on carbon footprint of Spanish healthcare centres." Journal of Transport & Health 20, no. : 101017.
Technical installations can be placed on accessible flat roofs in hospitals. However, flat roofs also increase the risk of leaks and other drawbacks, which may alter the ordinary conditions of use of the building. This research aims to optimise the periodicity of flat roofs maintenance operations in hospitals to increase their useful life and guarantee their reliability. This research considered flat accessible roofs with three types of waterproofing membranes: bitumen, PVC and elastomeric. A sample of 12 hospitals in Extremadura (Spain) was processed using the Markov Chain. The results show that the degradation of flat roofs can be estimated and consequently the most appropriate maintenance plan considering reliability. The authors found that preventive maintenance contributed towards extending the lifetime of the roofs up to 8 years with reliability exceeding 63.21%. In this respect, the PVC membrane was found to suffer the least degradation. The average operating life of the membranes was calculated: 28 years for PVC, 24 years for elastomer and 21 years for bitumen. The time between replacements was also estimated, which means maintenance operations can be systematised to optimise costs and boost reliability.
Jaime González-Domínguez; Gonzalo Sánchez-Barroso; Justo García-Sanz-Calcedo. Preventive maintenance optimisation of accessible flat roofs in healthcare centres using the Markov chain. Journal of Building Engineering 2020, 32, 101775 .
AMA StyleJaime González-Domínguez, Gonzalo Sánchez-Barroso, Justo García-Sanz-Calcedo. Preventive maintenance optimisation of accessible flat roofs in healthcare centres using the Markov chain. Journal of Building Engineering. 2020; 32 ():101775.
Chicago/Turabian StyleJaime González-Domínguez; Gonzalo Sánchez-Barroso; Justo García-Sanz-Calcedo. 2020. "Preventive maintenance optimisation of accessible flat roofs in healthcare centres using the Markov chain." Journal of Building Engineering 32, no. : 101775.
The optimization of maintenance in healthcare buildings reduces operating costs and contributes towards increasing the sustainability of the healthcare system. This paper proposes a tool to schedule preventive maintenance for healthcare centers using Markov chains. To this end, the authors analyzed 25 healthcare centers belonging to the three Healthcare Districts of Spain and built between 1985 and 2005. Markov chains proved useful in choosing the most suitable maintenance policies for each healthcare building without exceeding a specific degradation boundary, which enabled achieving an ideal maintenance frequency and reduced the use of resources. Markov chains have also proven useful in optimizing the periodicity of routine maintenance tasks, ensuring a suitable level of maintenance according to the frequency of the failures and reducing the cost and carbon footprint. The healthcare centers observed during the study managed to save more than 700 km of journeys, reduce emissions in its operations as a whole by 174.3 kg of CO2 per month and increase the overall efficiency of maintenance operations by 15%. This approach, therefore, renders it advisable to plan the maintenance of healthcare buildings.
Jaime González-Domínguez; Gonzalo Sánchez-Barroso; Justo García-Sanz-Calcedo. Scheduling of Preventive Maintenance in Healthcare Buildings Using Markov Chain. Applied Sciences 2020, 10, 5263 .
AMA StyleJaime González-Domínguez, Gonzalo Sánchez-Barroso, Justo García-Sanz-Calcedo. Scheduling of Preventive Maintenance in Healthcare Buildings Using Markov Chain. Applied Sciences. 2020; 10 (15):5263.
Chicago/Turabian StyleJaime González-Domínguez; Gonzalo Sánchez-Barroso; Justo García-Sanz-Calcedo. 2020. "Scheduling of Preventive Maintenance in Healthcare Buildings Using Markov Chain." Applied Sciences 10, no. 15: 5263.
Motivational orientations predispose and condition behaviour, and determine the degree of assimilation of concepts by students during their training stage. Knowing them allows professors to conduct their lessons in order to favour maximum achievement for students. The objective of this work is to evaluate the motivation that guides the learning process of Industrial Engineering students at the University of Extremadura (Spain). About three quarters of the students present a high motivation for learning; half of them tend to be result-oriented and less than 10% show a high level of fear of failure. Homogeneous groups were formed based on the level of each dimension, and influential teaching methodologies were discussed. Therefore, it is possible to create a context that favors the acquisition of knowledge by students according to their motivations, and thus achieve maximum academic performance from them. The results shown here may be interesting for the design of promotional activities for SDGs in the university context.
Gonzalo Sánchez-Barroso; Jaime González-Domínguez; Justo García-Sanz-Calcedo; Francisco Zamora-Polo. Analysis of Learning Motivation in Industrial Engineering Teaching in University of Extremadura (Spain). Sustainability 2020, 12, 4987 .
AMA StyleGonzalo Sánchez-Barroso, Jaime González-Domínguez, Justo García-Sanz-Calcedo, Francisco Zamora-Polo. Analysis of Learning Motivation in Industrial Engineering Teaching in University of Extremadura (Spain). Sustainability. 2020; 12 (12):4987.
Chicago/Turabian StyleGonzalo Sánchez-Barroso; Jaime González-Domínguez; Justo García-Sanz-Calcedo; Francisco Zamora-Polo. 2020. "Analysis of Learning Motivation in Industrial Engineering Teaching in University of Extremadura (Spain)." Sustainability 12, no. 12: 4987.
Collaborative project-based learning aims to get students to take responsibility for their knowledge processes. The objective of this research is to analyze the viability of applying circular economy techniques for the design and development of products, through learning based on collaborative projects in industrial engineering. A survey was carried out between 2015 and 2019 on final year students of industrial engineering in Spain, from five different academic years. The responses obtained were analyzed statistically. The results indicate that the students who had more previous knowledge about the circular economy, valued its relevance for the design and development of products as well as for the practice of the profession more. In addition, it was demonstrated that the implementation of circular economy strategies in the design and development of products through collaborative projects allows the acquisition of different knowledge: eco-design, product planning and distribution, reuse, recycling, etc. Moreover, most of the students considered that the circular economy should be a complementary discipline and a transversal competence.
Jaime González-Domínguez; Gonzalo Sánchez-Barroso; Francisco Zamora-Polo; Justo García-Sanz-Calcedo. Application of Circular Economy Techniques for Design and Development of Products through Collaborative Project-Based Learning for Industrial Engineer Teaching. Sustainability 2020, 12, 4368 .
AMA StyleJaime González-Domínguez, Gonzalo Sánchez-Barroso, Francisco Zamora-Polo, Justo García-Sanz-Calcedo. Application of Circular Economy Techniques for Design and Development of Products through Collaborative Project-Based Learning for Industrial Engineer Teaching. Sustainability. 2020; 12 (11):4368.
Chicago/Turabian StyleJaime González-Domínguez; Gonzalo Sánchez-Barroso; Francisco Zamora-Polo; Justo García-Sanz-Calcedo. 2020. "Application of Circular Economy Techniques for Design and Development of Products through Collaborative Project-Based Learning for Industrial Engineer Teaching." Sustainability 12, no. 11: 4368.
Hospitals need to prepare large amounts of domestic hot water (DHW) to develop their healthcare activity. The aim of this work was to analyse potential savings that can be achieved by installing solar thermal energy for production of domestic hot water in the hospitals of Extremadura (Spain). For this purpose, 25 hospitals between 533 and 87,118 m2 and between 15 and 529 beds were studied, three solar factor scenarios were simulated (0.70, 0.75 and 0.80) and the necessary investment and corresponding economic and environmental savings were calculated. Better economic results and energy ratios for 70% of solar contribution were obtained. These results show an average payback of 4.74 years (SD = 0.26) reaching 4.29 kWh/€ per year (SD = 0.20). Undertaking an investment of 674,423 €, 2,895,416 kWh/year of thermal energy could be generated with which to save both 145,933 € and 638 tons of CO2 per year. It was statistically demonstrated the priority of carrying out an installation with a solar factor of 70%, investing preferably in hospitals in Cáceres over those in Badajoz, especially in the public sector with more than 300 beds. These findings will provide hospital managers with useful information to make decisions on future investments.
Gonzalo Sánchez-Barroso; Jaime González-Domínguez; Justo García-Sanz-Calcedo. Potential Savings in DHW Facilities through the Use of Solar Thermal Energy in the Hospitals of Extremadura (Spain). International Journal of Environmental Research and Public Health 2020, 17, 2658 .
AMA StyleGonzalo Sánchez-Barroso, Jaime González-Domínguez, Justo García-Sanz-Calcedo. Potential Savings in DHW Facilities through the Use of Solar Thermal Energy in the Hospitals of Extremadura (Spain). International Journal of Environmental Research and Public Health. 2020; 17 (8):2658.
Chicago/Turabian StyleGonzalo Sánchez-Barroso; Jaime González-Domínguez; Justo García-Sanz-Calcedo. 2020. "Potential Savings in DHW Facilities through the Use of Solar Thermal Energy in the Hospitals of Extremadura (Spain)." International Journal of Environmental Research and Public Health 17, no. 8: 2658.
Justo García Sanz-Calcedo; Miguel Gómez-Chaparro; Gonzalo Sánchez-Barroso. Electrical and thermal energy in private hospitals: Consumption indicators focused on healthcare activity. Sustainable Cities and Society 2019, 47, 1 .
AMA StyleJusto García Sanz-Calcedo, Miguel Gómez-Chaparro, Gonzalo Sánchez-Barroso. Electrical and thermal energy in private hospitals: Consumption indicators focused on healthcare activity. Sustainable Cities and Society. 2019; 47 ():1.
Chicago/Turabian StyleJusto García Sanz-Calcedo; Miguel Gómez-Chaparro; Gonzalo Sánchez-Barroso. 2019. "Electrical and thermal energy in private hospitals: Consumption indicators focused on healthcare activity." Sustainable Cities and Society 47, no. : 1.
Unidirectional flow air-conditioning systems are suitable for achieving indoor air quality required in high-performance operating rooms (organ transplants, cardiac surgery, aorta, orthopedic, burns, etc.). This paper analyzes indoor environmental conditions and technical and hygienic requirements for the design of heating, ventilation, and air-Conditioning (HVAC) systems for high-performance operating theatres. The main standards applicable to this type of operating rooms were compiled. Standard UNE 100713:2015, ASHRAE Standard 170-2017, and the European pre-norm EN 16244 were analyzed. A case study shows the lack of uniformity in design criteria and their ranges of values, which generates different design approaches. It was concluded that using these standards applicable to high-performance operating rooms leads to very different indoor environmental conditions for patients and medical personnel—air velocity profiles, air movement pattern, temperature, relative humidity gradients, and pressure stratification. Computational fluid dynamics (CFD) studies have been shown to detect areas of haven that favor microbiological load accumulation. In this way, it is possible to define cleaning protocols to attend these anomalies in a preventive way.
Gonzalo Sánchez-Barroso; Justo García Sanz-Calcedo. Evaluation of HVAC Design Parameters in High-Performance Hospital Operating Theatres. Sustainability 2019, 11, 1493 .
AMA StyleGonzalo Sánchez-Barroso, Justo García Sanz-Calcedo. Evaluation of HVAC Design Parameters in High-Performance Hospital Operating Theatres. Sustainability. 2019; 11 (5):1493.
Chicago/Turabian StyleGonzalo Sánchez-Barroso; Justo García Sanz-Calcedo. 2019. "Evaluation of HVAC Design Parameters in High-Performance Hospital Operating Theatres." Sustainability 11, no. 5: 1493.