Έρευνα / Research

23/04/2018

Paper Presentation in a Themed Session:

T. Balafoutis, S. Zerefos. «A database of architectural details: The case of neoclassical facades elements». International Conference – BRAU4, Biennial of Architectural and Urban Restoration. (Athens, Greece). April 23-25, 2018.

Abstract:
This research is based on the fact that neoclassical buildings can be defined by repeated sets of distinct morphological elements and decorative ornaments found on their facades. These elements are recorded and categorized in a vast collection of listed buildings across the Globe, so as to create a worldwide database with facade characteristics of neoclassical buildings. This is achieved through the analysis of the general structure of the buildings in question, by studying grouped structural elements such as the base, the body, the coronation but also overhangs and openings. The research continues with the identification and analysis of decorative elements and filtering them to find shared elements. This database can be used to analyze similarities and differences between identical element types in different buildings, identify architectural “preferences” concerning the elements used in each case, detect common elements in various building uses or the use of different elements in similar types of uses, and in general constitute a valuable tool when researching any aspect of the facades of neoclassical buildings.

07/03/2018

Paper Presentation in a Themed Session:

T. Balafoutis, S. Zerefos. «Designing Lighting for Historical Buildings Using a Modular Methodology». 12th International Conference on Design Principles & Practices. (Barcelona, Spain). March 5-7, 2018.

Abstract:
This paper presents evidence on lighting design decisions through a decision support system application. The proposed system is developed for lighting historical buildings through a specific methodology. The methodology used does not count merely on an artistic or visual approach, but rather introduces a toolset that helps lighting design decisions regardless of the buildings’ historical period. This is achieved through the collection of the most important decorative and architectural elements on façades of historical buildings and filtering them to find shared elements. The façades are then procedurally decomposed into modules according to the collection of elements and each module is lit and tested through lighting simulations. The simulations then form a database of possible lighting scenarios, which is finally evaluated in a reverse process, to test the visual result of the building as a whole. This reverse process is scrutinized by experts in the field of lighting design. The most promising results are classified and present a number of different methods on how to light the façade of a historical building.

03/01/2018

Paper Accepted for Publication in Journal:
T. Balafoutis, S. Zerefos. «Developing a toolset for decision making on the design of lighting for historical buildings». The International Journal of Architectonic, Spatial, and Environmental Design. Publisher: Common Ground Journals and Books. Status: Ready for Typesetting.

21/10/2017

Poster Presentation in a Themed Session:

T. Balafoutis, S. Zerefos. «Lighting Design Simulation Programs Comparison». International Conference “ENERGY in BUILDINGS 2017”. (Athens, Greece). October 21, 2017.

Abstract:
The need for architects and lighting designers to attain optimal lighting solutions is solved by using lighting simulation software. This paper evaluates the performance of lighting design simulation applications and inter-compares the results of specific tasks in order to determine the accuracy of the output results. It outlines the qualities and capabilities of each program and how each one, performs in different tasks. While some comparative studies have been made between purely lighting design software [1] [2], no research exists that evaluates results between lighting design calculation software such as Relux and Dialux, compared to visual simulation programs such as 3D Studio Max. The later is optimized mainly on three-dimensional design but secondarily feature lighting calculation processes. The scope of the comparison is to investigate to what extent the results of the programs that are mainly used for visualization purposes can accurately calculate lighting, and what is the correlation to the verified output of software solely used for lighting calculations. The process of comparison is common to each simulation application and begins with the modeling of specific architectural elements that can be lit through different lighting setups, such as downlighting, uplighting, grazing, floodlighting etc. The lighting that falls on each surface is then simulated with different luminaires and types of luminaires so as to produce the lighting calculation results. The variety of luminaires will be based on luminaires that are widely available on the market and they differentiate upon their shape and size (spot lights, linear lights etc). Preliminary results show considerable differences concerning illuminance levels between the two sets of computer applications. The differences vary according to the type of luminaire used resulting in a more complex comparison matrix.

07/09/2016

Ξεκίνησε το πρώτο χρηματοδοτούμενο από το ΕΑΠ ερευνητικό έργο του εργαστηρίου με θέμα "Μεθοδολογία Φωτισμού για την Ανάδειξη των Ιστορικών Κτηρίων με συνολική χρηματοδότηση ύψους €30.000. Το έργο αποτελεί μέρος της έρευνας του υποψήφιου διδάκτορα της Σχολής μας, Αθανάσιου Μπαλαφούτη.

18/09/2015

Paper Presentation in a Themed Session:

T. Balafoutis, S. Zerefos. «Designing lighting for historical buildings using a modular methodology: The case of the work of Ernst Ziller in Greece». In: Proceedings of the Balkan Light Conference. (Athens, Greece). September 16-19, 2015.

Abstract:
This study introduces a system that can provide a basis for the lighting design of historical buildings using the work of the architect Ernst Ziller as a case study.The main scope is not to direct an “optimal way” to light a specific historical building, but rather to guide the lighting designer research the lighting of the elements of the facade instead of implementing a conventional general lighting design scheme. To achieve this, a collection of the most important decorative elements on the facades of buildings designed by Ernst Ziller was compiled. Each module was lit and tested with photorealistic renderings and lighting calculations, thus creating a database with scenarios for lighting each type of module and element. The results show that the placement of the luminaires has an essential role in the final result and even a few centimetres make a huge difference on the most appropriate luminaire type to be selected.