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Search Results: 1 - 10 of 5219 matches for " Carla Balocco "
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Energy and Sustainability in Museums. The Plant Refurbishment of the Medieval Building of Palagio di Parte Guelfa in Florence  [PDF]
Carla Balocco, Enrico Marmonti
Open Journal of Energy Efficiency (OJEE) , 2012, DOI: 10.4236/ojee.2012.13004
Abstract: This paper presents a performance-based design of a HVAC plant and controller system of the “Palagio di Parte Guelfa” Palace, a medieval building converted into a museum in the city of Firenze. Transient simulations to evaluate the internal microclimate conditions during the year for the building and the different system plant were carried out. A comparison between the indoor microclimatic parameters obtained and the values suggested by the standards on protection and conservation of historical works of art, suggested a non-invasive and reversible plant system solution. The MuseumofHistorical Footballbuilding portion is the case study. The proposed plant, a constant air flow system coupled with radiant panels dry mounted above the existing flooring, was simulated throughout the year under transient conditions to evaluate its energy performance. This solution ensures indoor temperature and humidity values suitable for the conservation of works of art and visitor comfort. It is an example of a possible course of action for a plant refurbishment in a historic building converted into a museum, located in climatic regions characterized by high thermal and solar loads. The present paper concerns the study of an integrated and reversible architectural-plant solution proposed: reversibility of the proposed system is understood as the possibility for the present conditions being easily restored.
Modelling infection spreading control in a hospital isolation room  [PDF]
Carla Balocco, Pietro Liò
Journal of Biomedical Science and Engineering (JBiSE) , 2010, DOI: 10.4236/jbise.2010.37089
Abstract: This paper investigates the airflow patterns connected to different cough conditions, the effects of these arrangements on the regions of droplet fallout and dilution time of virus diffusion of coughed gas. We focus on some of the physical processes that occur in a double bed hospital isolation room, investigating the effect of the ventilation system on the spread of particles in air. A cough model was carried out and used for the numerical simulation of virus diffusion inside an existent isolation room. Transient simulations of air pattern diffusion and air velocity field, provided by the existing typical HVAC primary air system designed for infectious patients, were performed using CFD. A multiphysics approach, combined Convection-Conduction, Incompressible Navier-Stokes models on non-isothermal air flow and Convection-Diffusion, was used. Simulations results highlighted that the flow field and velocity distribution induced by the high turbulence air inlet diffuser combined with the air return diffusers produce wide recirculation zones near the wall and partial stagnation areas near the ceiling and between the two beds, but lower particle concentration in the room and their shorter spreading distance. This type of analysis is certainly cost effective to identify all the air recirculation zones which can harbour lingering pathogens.
Numerical Investigation of Different Airflow Schemes in a Real Operating Theatre  [PDF]
Carla Balocco, Giuseppe Petrone, Giuliano Cammarata
Journal of Biomedical Science and Engineering (JBiSE) , 2015, DOI: 10.4236/jbise.2015.82008
Abstract: A study on performances of different ventilation schemes provided by vertical and horizontal uni-directional air flow was carried out in a standard orthopaedic operating theatre (OT). Starting from our previous studies of a real OT under operating use conditions, in this research different air flow configurations, considering some air curtain solutions on the ceiling and at the sliding door always assumed to be open as a basic boundary condition, were investigated by numerical simulations. Indoor air quality (IAQ) indexes and thermal comfort parameters, deduced from simulation results were calculated and discussed referring to the best performance and efficacy between the air flow schemes to contrast the incorrect use conditions of the OT. Referring to the studied schemes, the reciprocal comparison emphasizes that a successful outcome in preventing surgical site infection can depend as much on resolving human factors (i.e. operational use conditions, door opening/closing), as on overcoming physical and technical obstacles.
Optimal and Sustainable Plant Refurbishment in Historical Buildings: A Study of an Ancient Monastery Converted into a Showroom in Florence
Carla Balocco,Enrico Marmonti
Sustainability , 2013, DOI: 10.3390/su5041700
Abstract: The aim of this research is to study the possibility and sustainability of retrofit and refurbishment design solutions on historical buildings converted to different uses and often clashing with their original purpose and architectural features. The building studied is an ancient monastery located in the historical center of Florence (Italy). Today the original cloister is covered over by a single glazed pitched roof and used as a fashion showroom. Our proposed solution concerns a reversible and sustainable plant design integrated with an active transparent building casing. The existing glazed pitched roof was reconsidered and re-designed as part of the existing heating, ventilation and air conditioning (HVAC) plant system, based on the functioning of an active thermal buffer to control the high heat flow rates and external thermal loads due to solar radiation. Hourly whole building energy analysis was carried out to check the effectiveness and energy sustainability of our proposed solution. Results obtained showed, from the historical-architectural, energy and environmental points of view, its sustainability due to the building-plant system integration and interaction with its location, the external climatic conditions and defined expected uses, in particular with reference to indoor thermal comfort.
Indoor Air Quality in a Real Operating Theatre under Effective Use Conditions  [PDF]
Carla Balocco, Giuseppe Petrone, Giuliano Cammarata, Pietro Vitali, Roberto Albertini, Cesira Pasquarella
Journal of Biomedical Science and Engineering (JBiSE) , 2014, DOI: 10.4236/jbise.2014.711086
Abstract: The aim of this study is to investigate the impact of surgical staff on the indoor air quality in a uni-directional ventilation Operating Theatre (OT). Experimental measurements of particles and microclimate were acquired at rest and in operational conditions. The real OT (operational) use was simulated by a sham hip arthroplasty. CFD simulations were carried out outlining the studied environment used for experimental measurement campaign. A standard k-ε closure scheme based on RANS equations was implemented to solve the velocity and pressure field using an eddy viscosity approach. Temperature and relative humidity distributions were also computed keeping into account sensible and latent heat sources inside the OT. An Euler-based approach was applied to solve the concentration fields of gaseous contaminant and small particles (up to 5 μm in diameter) in the indoor air. An innovative strategy is proposed to estimate, by an iterative comparison between experimental data and numerical results, the emission rate of particles (differentiated by diameters) released by the occupants to be considered as source terms in the numerical model. Compliance with literature evidence concerning thermal and velocity fields and CO2 concentration was confirmed. From our analyses, some IAQ indexes were deduced, allowing monitoring of the local and overall OT air quality level supplied by the ventilating system during real operational conditions. The highest values of microbial air contamination were recorded during surgical activity; nevertheless, results showed the suitability of the ventilation system in providing the expected air quality.
Education, organization and sense-making: some intervening hypoteses
Eusebio Balocco
Emergency Care Journal , 2006, DOI: 10.4081/ecj.2006.1.22
Abstract: The purpose of this work is to illustrate, starting from a concrete training experience, the importance and the use of developing certain opportunities for reflection within organisation, training and communication processes that make it possible to make explicit the contributions of the implicit knowledge possessed by Accident and Emergency Department Nurses and the various organisational players. This may contribute to a better representation and planning of service organisation, thus enabled to express both its distinguishing culture and operative potential in an original way. Through a concise analysis of some of the organisational models used, it shows how Accident and Emergency Department organisation presents certain characteristics of unpredictability, instability and chaos typical of highly complex and high risk systems, which require a particular propensity in their management, in order to favour processes of self-organisation, self-training and sensemaking.
From awareness to mindfulness
Eusebio Balocco
Emergency Care Journal , 2009, DOI: 10.4081/ecj.2009.1.4
Abstract: Not available
ER: between sel-organizational and workplace learning processes
Eusebio Balocco
Emergency Care Journal , 2006, DOI: 10.4081/ecj.2006.6.41
Abstract: This, first part, which it will follow from a second part, explores some aspects of the autorganization concept importance in the context of Biology evolutionary. A concept of fecund consequences emerges from it, not only about epistemological level, but also organizational, that we’ll be focused on the next time. Here, we consider only a part of aspects to make to emerge the great variability and complexity that characterizes all evolutionary processes to the rising state, their unavoidable vicinity to the chaos, that it is rich of potentiality and evolutionary perspectives. It is evident the risk of rigidity and uniformity that characterizes some rather diffuse thought’s tendencies, tendencies that do not value those points and moments of unstable oscillation from which then come often new creations and creatures.
Novas narrativas do contemporaneo: uma análise crítica do discurso do movimento slow
Balocco, Anna Elizabeth;
Linguagem em (Dis)curso , 2012, DOI: 10.1590/S1518-76322012000200002
Abstract: this research project carries out a critical investigation of the slow movement discourse that is present in the press and electronic media, while drawing on the theoretical principles of critical discourse analysis, which is primarily concerned with the role of language and discourse in processes of social change. to this end, an archive of texts from different symbolic registers was compiled (blogs, advertisements, books, texts published in the press and posted online) with a view to investigating the social values underlying this discourse, as well as the conditions of possibility for its emergence. the analysis focuses on interdiscursive relations in the archive, identified on the basis of an investigation of lexical relations in its texts. the results suggest that the archive features: a) a critical discourse on the new social media; and b) a critical discourse of the culture of performance and productivity. the slow movement discourse articulated in these texts is produced from different perspectives and has distinct values and social meanings.
Planning the beautiful exit or building the environmental well being?
Eusebio Balocco,Massimo Pesenti Campagnoni
Emergency Care Journal , 2009, DOI: 10.4081/ecj.2009.6.4
Abstract: Not available
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