Methodological evaluation of the environmental impact for aeolian park. The visual perception index.

Entropy and illicit building style

Valutazione del microclima luminoso in ambiente scolastico tramite approccio adattivo

Questo articolo mostra i risultati di una indagine compiuta in ambiente scolastico e basata su un questionario di tipo adattivo, mirata alla valutazione del microclima luminoso e del grado di soddisfazione dello stesso da parte degli utenti. Attraverso simulazioni, sono state preventivamente individuate alcune aule all’interno della struttura scolastica, dove le condizioni potevano risultare critiche, sia per il verificarsi di fenomeni di abbagliamento, che di non rispetto dei valori consigliati dalla vigente normativa. La metodologia proposta prevede l’utilizzo di rilevamenti strumentali, di simulatori e la somministrazione di un questionario agli studenti delle aule in oggetto. Il questio…

Urban Waste as Resource for Sustainable Environment

The emerging model of waste disposal, develops an integrated approach based on waste reduction, selection, recycling, energy recovery and residual use of landfill. Here we discuss the fundamentals of a proper planning of waste disposal system, specially the thermal recovery, the integration and the methodological approach, either from the environmental and economic point of view. The growing demand for energy, the resulting environmental problems due to satisfy the demand for energy and the complex-economic system, necessitate the study of new technologies such as energy from municipal solid waste (MSW) obtaining as a result of decrease huge mass of solid waste to sanitary landifill and emi…

A model Of Sustainable Development in areas with Limited Resources

This research work introduces aan original model Of Sustainable Development in areas with Limited Resources.

Un modello statistico per la previsione dei livelli di concentrazione dei prodotti della combustione in ambienti domestici.

Qualità dell'aria in ambienti scolastici: Valutazione dei livelli di concentrazione di composti organici volatili (VOC) e di materiale particolato (PM10).

Analysis of conformity and adaptation of university lecture halls to the illuminating engineering regulations: a case study.

Influenza di sistemi passivi sul PMV in ambienti Moderati.

Efficienza e sostenibilità nel ciclo produttivo di una distilleria

L’analisi dell’attività esercitata dalla distilleria Bertolino, ha consentito di mettere in evidenza i molteplici aspetti ambientali diretti e/o indiretti ad essa connessi in tutte le fasi del processo produttivo: dall’ingresso della materia prima, dei materiali di consumo ed i relativi consumi energetici, pervenendo ad uno studio di fattibilità per l’utilizzo del biogas in un impianto di cogenerazione in sostituzione di combustibili fossili.

Le grandi superfici vetrate nella previsione del comfort termico

The use of transparent insulating materials in low energy consumption buildings, trough the study of thermal and optical behaviour

This article discusses the use of innovative transparent materials in residential buildings with low energetic consumption and describes a simulation of their performance during winter. The behaviour of these materials was studied both from a thermic point of view and from the point of view of the quality of daylight illumination To simulate the behaviour of these materials, we used different forecasting software to measure and, at the same time, analyse their luminosity, their thermal characteristics and the resulting energy saving. The results show a considerable saving in energy even in terms of the greater economic investment needed for the installation of these innovative surfaces. Res…

Un modello semplificato per la determinazione delle concentrazioni degli inquinanti gassosi emessi da stazioni fisse.

Life Cycle Assessment nella certificazione energetica degli edifici

Il presente lavoro sviluppa il Life Cycle Assessment nella certificazione energetica degli edifici.

Validation of the hierofanic theory in church architecture: a study of a 12th century church in Palermo

A case study to the Evaluation of Global Environmental Quality, concerning thermal, acoustic and atmospheric conditions of urban areas

In this paper we propose an operative procedure aimed at assessing and check the global environmental quality in the urban areas. This methodology is set up by using an ergonomic approach that analyses the interaction man-environment in terms of cause-effect and uses information and data from various sources contributing to the formation of discomfort degrees.[1-2] The representation technique by normo-grams is used for showing some applications executed along the urban territory of Palermo and allows to evaluate very simply all the parameters involved in human comfort. This paper is divided in 5 sections, after the introduction in section 2 a review of the principal simple and complex inde…

Urban Waste As Resource For Sustainable Environment

The emerging model of waste disposal, develops an integrated approach based on waste reduction, selection, recycling, energy recovery and residual use of landfill. Here we discuss the fundamentals of a proper planning of waste disposal system, specially the thermal recovery, the integration and the methodological approach, either from the environmental and economic point of view. The growing demand for energy, the resulting environmental problems due to satisfy the demand for energy and the complex-economic system, necessitate the study of new technologies such as energy from municipal solid waste (MSW) obtaining as a result of decrease huge mass of solid waste to sanitary landifill and emi…

Evaluation through adaptive model (ATC) in the levels of thermal comfort in summer in offices in Mediterranea locations.

The design of the building-plant system in the case of office buildings has rarely considered the adaptive model of comfort almost always limited to the control of temperature and humidity and only in some cases of PMV and PPD. Specifically when the building interacts with a climate characterized by high values of external temperature and humidity for long periods, and with high solar radiation in the presence of large glazed areas, it is crucial to take into account relevant aspects of the principle of thermal adaptation. The long stay of the occupants in an air-conditioned environment leads, at the request of colder temperatures very distant from those indicated by the criteria of accepta…

Verifica del comportamento acustico della sala per auditorium nel padiglione industriale Ducrot a Palermo

Solar cooling: study on the technical-economic feasibility of a plant in a hotel.

Solar air conditioning allows more energy savings than air conventional conditioning plants. Just like the thermal solar systems for heat production destined to large consumers, solar air conditioning represents a technology that turns out to be economically more favorable. Its employment for the summer air conditioning of buildings represents today an ulterior and very interesting field of application. This article shows the results of a study on the technical-economic feasibility of a solar cooling plant realized in a hotel in South Italy. Just like the air conditioning load produced by electric power, hot water produced by thermal solar plants has a periodic character which, in both case…

FLUSSI TURISTICI E GESTIONE DEI RIFIUTI: IL CASO DI PANTELLERIA

Ogni estate migliaia di turisti raggiungono l’isola siciliana per le vacanze e con loro aumenta la produzione di rifiuti e i problemi legati alla sua gestione. Di fronte a queste preoccupazioni, la Facoltà di Architettura dell’Università di Palermo insieme al Dipartimento di Energia, Ingegneria dell’Informazione e Modelli Matematici dell’Università di Palermo, hanno elaborato uno studio di fattibilità che prevede l’inserimento di un impianto per la valorizzazione energetica dei RSU e delle biomasse.

A Case Study to evaluate the indoor global quality

This paper proposes two complementary procedures for assessing the global quality comfort: the first one, prevalently objective, is based on the acquisition of microclimate measured data and computed subjective values; the second one, that is purely subjective, uses a questionnaire drawn from the ISO/DP 10551 Recommendation. An application to some lecture-halls and laboratories of the school is here showed.

Determinazione degli indici PMV/PPD attraverso misure strumentali e questionari nel modello adattivo

Optimal sizing of a Skylight dynamic simulation and validation using an experimental method

RESEARCH ON MICROCLIMATE LIGHT CONDITIONS IN A SCHOLASTIC ENVIRONMENT, BASED ON ADAPTIVE MODEL

This paper shows the results of a deep research, carried out on a scholastic setting and based on a questionnaire, to evaluate the light microclimate and the satisfaction degree of the users. Through simulations, we have previously identified a number of classrooms where the conditions could be critical, both in terms of over-lightning, glare and disrespected values (suggested by the current normative). The proposed method consist in using device-made-surveys, a simulation software and questionnaires submission to users of the studied rooms. The questionnaires, based on an adaptive model, has been developed to detect subjective data (place, visus…) and other information about the setting an…

Pianificazione dell'ambiente acustico urbano: un metodo basato sul GIS

Economic and technical feasibility of a photovoltaic system in university building

The use of renewable sources for electric power production can compensate the ever increasing energy demand in buildings. This article shows a study on the feasibility – both from the economic and technical point of view, of a photovoltaic system to be built on the premises of a university faculty. After a historical analysis on the building’s consumption – both on a yearly and monthly base, which highlights the need for an autonomous electric power production system, the difficult task of the technical optimization was undertaken with the aim of minimizing the impact or visual interference of the plant. A series of simulations allowed estimating the right compromise between producibility o…

The energy certification of buidings through the dynamic simulation of variable consumption

The problem of energy quality control in buildings was officially recognised for the first time at a European level in the EEC directive no. 93/76 of 1993. This directive represented the formal act of an undertaking to promote actions that would lead to a reduction in global carbon dioxide (CO2)emissions. Article 2 of this directive established that states should carry out programmes concerning the energy certification of buildings, which were consistent in the description of their energy parameters, so as to allow future users of a building to know and understand its energy efficiency. Italy acknowledged this directive, along with the subsequent European directive 2002/91/CE on energy effi…

A Simulation of daylight levels for the determination of visual comfort in large spaces

In sizable environments, such as the collective areas of a big university building, characterised by very long corridors, large hallways and broad glazed surfaces, the daytime illumination factor is often only excellent near to the latter, due to their predominantly horizontal, rather than vertical, nature. His study, which has been carried out thanks to a simulation software, shows the results of a correlation between light contributions, come out from the wide glass surface and those of a big skylight which cross lenghtways the main part of the building. Such results have been compared with some instrumental measurements considering the shifting and getting from them important information…

Valutazione dei livelli di monossido di carbonio in ambiente scolastico: Un caso di studio.

Influenza degli elementi di facciata per la protezione dall'inquinamento acustico da traffico

A procedure to evaluate the indoor global quality by a sub objective-objective procedure

This paper proposes two complementary procedures for assessing the indoor global comfort: the first one, prevalently objective, is based on the acquisition of microclimate measured data and computed subjective values; the second one, that is purely subjective, uses a questionnaire drawn from the ISO/DP 10551 Recommendation. An application to some lecture-halls is here showed

Verso un modello di sviluppo sostenibile

Light Pollution: Uno studio sul centro storico di Palermo

Saving energy by integrating natural and artificial lighting: a case study.

Simulazione del comportamento di materiali isolanti trasparenti applicati ad un caso studio

Indice di efficenza energetica: Valutazione delle caratteristiche prestazionali per la certificazione degli edifici attraverso esperienze applicative.

Indice di efficenza energetica: Valutazione delle caratteristiche prestazionali per la certificazione degli edifici attraverso esperienze applicative.

Asset rating: Disagreement between the results obtained from software for energy certification

The general practice for establishing the consumption in asset ratings of a building consists of entrusting the energy analysis of the shell of a building to calculating software. The building is the subject of an extremely complicated analysis, and there are many variables at stake, is it more correct to aim for a simplification of the problem, in the knowledge that behind every analytical formula there is the possibility of an evaluation error, or is it better to aim for calculation models that are more and more detailed in an attempt to succeed in predicting the real energy behaviour of the building ? Depending on the objective that has been set, it is a good idea to identify the tool be…

Localizzazione di un impianto per la termovalorizzazione dei rifiuti solidi urbani attraverso l'enalisi dei fattori escludenti e la modellizzazione previsionale degli impatti

L'articolo mostra i risultati di un'indagine perimentale condott con l'impiago di G.I.S.

Experimental Evidence on the Thermal Performance of Opaque Surfaces in Mediterranean Climate

The thermal insulation of buildings, intended as wrap feature which determines the dispersion of heat, the reference parameter is necessary to contain the thermal losses during the winter season. The transmittance of the opaque components, used as an indicator of the energy quality of a casing, together with the overall coefficient of dispersion, represents a proper descriptor of the behavior during the heating season. However, if a strong insulation in winter conditions brings only positive effects, the same cannot be said for the summer conditions. A high value of the insulation in the casing is convenient only when the gains free, either in the form of solar contribution that of endogeno…

Assessment of the renewable energy production in a historical building for a touristic intended use: a technical-economic feasibility study

This column deals about a study based on technical and economical feasibility of a combination of technologies and systems for energy production concerning electric, heating and cooling to install on a building in the historic centre of a Sicilian city (Italy). After a functional review and an energetic evaluation, the building will have a hotel destination. A first evaluation, made on a model set with the geometrical, thermo-physical and climatic data both of the building and the place, allowed to make a dynamic simulation to define the energetic monthly needs. The evaluation has been done considering different solutions and technologies. With the collected data we supposed a first sizing …

Experimental Evidence on the Thermal Performance of Opaque Surfaces in Mediterranean Climate

The thermal insulation of buildings, intended as wrap feature which determines the dispersion of heat, the reference parameter is necessary to contain the thermal losses during the winter season. The transmittance of the opaque components, used as an indicator of the energy quality of a casing, together with the overall coefficient of dispersion, represents a proper descriptor of the behavior during the heating season. However, if a strong insulation in winter conditions brings only positive effects, the same cannot be said for the summer conditions. A high value of the insulation in the casing is convenient only when the gains free, either in the form of solar contribution that of endogeno…