Papers by Theodoros Theodosiou
IOP Conference Series: Earth and Environmental Science, 2020
The paper concerns the development of an innovative building module with advanced thermophysical ... more The paper concerns the development of an innovative building module with advanced thermophysical and mechanical properties that will be used in constructing sustainable prefabricated buildings with high structural, hygrothermal, energy, acoustic, fire and environmental performance at the minimum possible time and cost. In this paper, the configuration of the new building element, as well as its hygrothermal, energy, acoustic and environmental performances are presented. In addition, its contribution to forming a sustainable, energy efficient, affordable building is investigated.
Bookmarks Related papers MentionsView impact
This paper investigates different strategies towards advancing the energy efficiency of a high-ri... more This paper investigates different strategies towards advancing the energy efficiency of a high-rise office building by focusing on the building envelope. More specifically, the focus is on the thermal properties of the building envelope and the effect of altitude on energy performance. The studies are focused on Tel Aviv, Israel, a city with a vibrant high-rise building activity. Studying this typology in this Mediterranean climate will be of relevance for other cities with similar climate (e.g. in Middle East, S. Europe, N. Africa) that undergo similar processes of high-rise development. The study is based on thermal simulations of an office reference model at different heights: 8 m (ground level), 82 m, 168 m, 254 m, and 340 m. Alternative facade scenarios were implemented for gradually upgrading the building envelope and studying its relationship with the changing microclimate with altitude (wind speed increase and dry bulb temperature drop) between ground and top level. The enve...
Bookmarks Related papers MentionsView impact
Journal of Building Engineering
Bookmarks Related papers MentionsView impact
Applied Energy
Bookmarks Related papers MentionsView impact
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2021
Bookmarks Related papers MentionsView impact
Sustainability, 2019
Replacing conventional pavements with the corresponding high albedo ones constitutes a well-known... more Replacing conventional pavements with the corresponding high albedo ones constitutes a well-known technique to improve outdoor thermal environment of modern cites. Since most of the existing studies assess the impact of the high albedo pavements at the pedestrian’s height and with respect to thermal comfort, this study aims to examine the effect of the application of highly reflective pavements on the heating and cooling energy needs of a building unit, located inside a dense urban area. Aiming at a higher accuracy of the energy performance simulations, an integrated computational method between ENVI-met model, Meteonorm weather data generator and Energy Plus software is established, to consider the site-specific microclimatic characteristics of the urban areas. The analysis is performed both for the design and the aged albedo values as significant changes may occur due to aging process. The analysis revealed that the application of cool materials on the ground surfaces only margina...
Bookmarks Related papers MentionsView impact
Water, 2016
Bookmarks Related papers MentionsView impact
ABSTRACT
Bookmarks Related papers MentionsView impact
Meteorological Applications, 2010
Abstract Effective winter maintenance of motorways is highly dependent on local topography and we... more Abstract Effective winter maintenance of motorways is highly dependent on local topography and weather and can be a significant economic factor in overall maintenance costs. In the present paper, a temperature profile of a highway road surface is obtained through ...
Bookmarks Related papers MentionsView impact
Energy and Buildings, 2003
Bookmarks Related papers MentionsView impact
Energy and Buildings, 2008
... This has proven to be a crucial decision since the school year of 20062007 was far ... numbe... more ... This has proven to be a crucial decision since the school year of 20062007 was far ... number of teachers and students in every classroom during the week, and generally, operational issues affecting the energy ... This reflects a knowledge deficit concerning energy efficient design. ...
Bookmarks Related papers MentionsView impact
Energy and Buildings, 2008
... The double wall construction, used widely in Greece and not only there, is rather susceptible... more ... The double wall construction, used widely in Greece and not only there, is rather susceptible to the occurrence of thermal bridges, in contrast to a typical thermal insulating façade, like the one applied in Central Europe. The ...
Bookmarks Related papers MentionsView impact
Energies, 2017
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
IOP Conference Series: Earth and Environmental Science, 2020
This paper presents the primary findings of a research project, aiming to introduce an innovative... more This paper presents the primary findings of a research project, aiming to introduce an innovative building module with improved thermophysical and mechanical properties that will serve as a bearing element and/or as an internal partition wall in prefabricated residential buildings. This new building module will comply with current requirements as regards its operation and performance. For the purposes of this investigation, the overall performance of the considered building elements is ensured by the proper configuration and assembly of the involved layers and is verified through analytical and experimental analyses, as well as through measurements at accredited laboratories. The objective of this innovative building element is to establish a building envelope with a high structural, hygrothermal, energy, acoustic, fire and environmental performance, while reducing both the time and cost required to complete its construction. Evidently, the accomplishment of this objective suggests ...
Bookmarks Related papers MentionsView impact
Energy and Buildings, 2018
Bookmarks Related papers MentionsView impact
1999 ISES Solar World Congress, 2000
Bookmarks Related papers MentionsView impact
Energy and Buildings, 2015
Abstract Cladding systems have become an attractive solution in energy renovation of existing bui... more Abstract Cladding systems have become an attractive solution in energy renovation of existing buildings since they combine multiple benefits. In such systems, the use of a metallic frame and brackets, which penetrates the thermal insulation layer, creates point thermal bridges that are usually neglected by thermal insulation regulations due to their calculation complexity and their supposed small magnitude in overall heat losses. The objective of this study is to perform a parametric analysis to quantify the magnitude of this thermal bridging effect. All necessary calculations are performed using a detailed 3-dimensional numerical analysis approach in order to overcome oversimplifications found in most thermal bridge estimation methods. Results of the analysis are applied in a refurbishment study of an existing office building in order to underline the significance of the problem under investigation, in practice. As it is shown, point thermal bridge effects in cladding systems can constitute a significant part of buildings’ thermal balance. Neglecting their presence can lead to significant underestimation of actual heat flows which can account for 5% to almost 20% of total heat flows through the building envelope, depending mostly on the thermal transmittance of the load bearing wall and the ventilation characteristics of the air cavity.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
ABSTRACT
Bookmarks Related papers MentionsView impact
Uploads
Papers by Theodoros Theodosiou