Search results for " ICA"

Performance Study of Twisted Darrieus Hydrokinetic Turbine With Novel Blade Design

2021

Abstract Twisted Darrieus water turbine is receiving growing attention for small-scale hydropower generation. Accordingly, the need for raised water energy conversion incentivizes researchers to focus on the blade shape optimization of twisted Darrieus turbine. In view of this, experimental analysis has been performed to appraise the efficiency of a spiral Darrieus water rotor in the present work. To better the performance parameters of the studied water rotor with twisted blades, three novel blade shapes, namely U-shaped blade, V-shaped blade, and W-shaped blade, have been numerically tested using a computational fluid dynamics three-dimensional numerical model. The maximum power coefficie…

15 Minute City Concept and Palermo Case Study

Sustainable urban mobility models and decarbonization in transportation have been discussed globally for decades. Yet the problem is not just decarbonization and the solution is not limited to green technology alone. Particularly, Covid-19 brought to light other important and ingrained problems of cities such as inequality of accessibility, the marginalization of some urban, peri-urban, rural territories and the emergence of social exclusion. In order to find a way out from these problems, practical, easily accessible, comfortable, and cheap alternatives should be provided to citizens and the use of private vehicles should be minimized. However, no matter how many alternative transportation…

15 Minute City Concept. A Glance at the Palermo Case Study

2022

Giving people opportunities for green technology and offering them new transportation modes are not sufficient methods for the transition to a sustainable mobility model. With the increasing importance of time, minimizing the daily travel time of people seems to be one of the crucial steps to be taken. 15 Minute City is one of the latest popular concepts assuring to reduce daily travel time and improve quality of life while enhancing environmental conditions. This paper will have a look at the concept regarding the case study of Palermo, one of the cities with the most intense traffic problems in Europe.

Committenti, teorie e modelli (XV-XVI secolo)

2022

The chapter deals with the theme of the role of clients in architectural debate in Italy during 15th and 16th centuries, trough a slection of case studies.

Il caracol quadrato in Sicilia (XVI secolo)

2022

Square spiral staircases appear in Sicily during the 16th century in different contexts and for different purposes. This contribution focuses on two case studies at the “opposite poles” of a casuistry that shares the common characteristics of suspended ramps revolving within a square masonry box around a central void. By analysing these cases we find a probable link with models from Spain. At the same time, they demonstrate a common descent from a constructive culture rooted in the Spanish and Mediterranean stereotomic experience of the early modern age.

MUTAZIONI IN CORSA: L’AVVENTURA DELLA COSTRUZIONE DI UNA FACCIATA DEL SETTECENTO. LA CHIESA DI SAN GIOVANNI A VIZZINI

2022

A series of documents helps to define the history of the genesis of an eighteenth-century church façade in Sicily: the church of San Giovanni in Vizzini. The history reveals a constant change of intentions and an empirical approach where, without necessarily proceeding to demolish the already built, the project is subjected to continuous revisions and additions. The process therefore reveals a radical alternative to the idea of an orderly succession between drawing and execution.

Earthquake-resistant construction techniques in Italy between 1880 and 1910: alternatives to reinforced concrete

2017

The series of earthquakes that struck Italy between the late nineteenth century and the first decade of the twentieth century spurred a lively debate about earthquake-resistant buildings that, through the influence of foreign experience, resulted in specialised literature and competitions that gave rise to a series of interesting patents. Innovative construction solutions for seismic areas were largely developed after the earthquake that struck the cities of Messina and Reggio Calabria in 1908, alongside the parallel advances in reinforced concrete. New earthquake-resistant construction solutions were based on a reassessment of traditional construction methods that used bricks, timber or me…

Echi del terremoto. Francesco Valenti, Ernesto Basile, Antonio Zanca, Enrico Calandra a confronto per Messina

2008

Recensioni

2012

London 2012. Sustainable Design, Delivering a Games Legacy è una monografia pubblicata nel gennaio del 2012, dalla casa editrice americana John Wiley & Sons Inc., e non ancora radotta in italiano. In quest’opera l’autrice, Hattie Hartman, architetto e urban designer, formatosi alla Harvard University e al Massachusetts Institute of Technology, scrive alla luce dell’esperienza maturata come Sustainability editor nel settimanale inglese “The Architects’ Journal”, edito dal 1896 a compendio del famoso mensile internazionale “The Architectural Review”, proponendoci una lettura sulla sostenibilità dei lavori per le Olimpiadi di Londra 2012.

Elusive active faults in a low strain rate region (Sicily, Italy): Hints from a multidisciplinary land-to-sea approach

2022

Low Strain Rate regions (LSRrs), i.e., areas undergoing tectonic deformation at rates of 1 mm/yr or less, often host important cities and highly vulnerable anthropogenic assets, and due to their subdued topography and relatively infrequent seismicity, are often considered low seismic hazard areas. Despite this, infrequent but high-magnitude earthquakes in such regions suggest that identifying active structures in the LSRr is one of the primary challenges for both the scientific community and modern societies. In such regions, one of the main issues in identifying active faults is the lack of valuable outcrop data due to erosional/sedimentation rates overwhelming the fault deformation, causi…