Browsing by Author "Tsangrassoulis, A."
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Algorithms for optimization of building design: A review
Machairas, V.; Tsangrassoulis, A.; Axarli, K. (2014)Building design is quite a complicated task with the design team trying to counterbalance various antagonistic parameters, which in turn are subject to various constraints. Due to this complexity, performance simulation ... -
Analysis of the greek behavioural pattern in residences and its effect on thermal simulation estimates
Drakou, A.; Tsangrassoulis, A. (2012)Occupants' interaction with the building envelope systems may provide a comfortable indoor environment and lead to a better energy performance of the building. Through questionnaire survey, this study investigates occupant's ... -
Balancing buildings and occupants-a holistic approach to thermal comfort and greenhouse gas emissions in mixed mode offices
Roetzel, A.; Dietrich, U.; Tsangrassoulis, A.; Busching, S. (2010)This paper describes a holistic approach to comfort and greenhouse gas emissions in mixed mode offices. It is based on parametric studies for a typical cellular office in the Mediterranean climate of Athens, Greece, using ... -
Comparison of radiosity and ray-tracing techniques with a practical design procedure for the prediction of daylight levels in atria
Tsangrassoulis, A.; Bourdakis, V. (2003)Designers are often facing prescribed requirements concerning daylight in atria. For the accurate prediction of the illuminances the designers should employ either computer simulations or apply empirical equations. This ... -
Comparison of the EN 15251 and Ashrae Standard 55 adaptive thermal comfort models in the context of a Mediterranean climate
Roetzel, A.; Tsangrassoulis, A.; Drakou, A.; De Siqueira, G. (2011)Strong heat waves in the past decade and resulting legal cases which gave full responsibility for indoor thermal comfort to building professionals lead to an increased uncertainty how to maintain thermal comfort in offices ... -
Context dependency of comfort and energy performance in mixed-mode offices
Roetzel, A.; Tsangrassoulis, A.; Dietrich, U.; Busching, S. (2011)This article investigates the context dependency of comfort and energy performance in mixed-mode offices in the climate of Athens, Greece. It is based on a parametric study using the simulation software EnergyPlus. Context ... -
Exploring occupant behaviour in Greek residences during summer
Drakou, A.; Tsangrassoulis, A. (2012)In naturally ventilated buildings, the appropriate use of the building shell components is the key to better energy performance and to a more comfortable indoor environment. Through questionnaire survey, this study ... -
A genetic algorithm solution to the design of slat-type shading system
Tsangrassoulis, A.; Bourdakis, V.; Geros, V.; Santamouris, M. (2006)This article presents a technique for the design of slat-type blinds based on the their relative light intensity distribution under a uniform light source. The technique offers a new approach using a genetic algorithm in ... -
Impact of building design and occupancy on office comfort and energy performance in different climates
Roetzel, A.; Tsangrassoulis, A.; Dietrich, U. (2014)The building sector has a significant share in a county's total greenhouse gas emissions, and as a reaction to the Kyoto commitment most countries are constantly adjusting building energy requirements in order to reduce ... -
Impact of climate change on comfort and energy performance in offices
Roetzel, A.; Tsangrassoulis, A. (2012)This paper investigates the impact of a climate change scenario on comfort and energy performance in offices, in relation to the influence of building design and occupants. It focuses on a typical cellular office room in ... -
Impact of climate change on thermal comfort and energy performance in offices - A parametric study
Roetzel, A.; Tsangrassoulis, A. (2012)This paper investigates the impact of climate change on comfort and energy performance in offices in relation to the influence of building design and occupants. It focuses on a typical cellular office room in the context ... -
Influence of building use on comfort and energy performance in offices
Roetzel, A.; Dietrich, U.; Tsangrassoulis, A.; Busching, S. (2009)This paper investigates the influence of different building use by companies and individual occupants on thermal and visual comfort, energy consumption and CO2 emissions in mixed mode offices. Adaptive thermal comfort ... -
Multi-criteria decision analysis to select the optimum position and proper field of view of a photosensor
Doulos, L.; Tsangrassoulis, A.; Topalis, F. V. (2014)The lack of knowledge concerning the commissioning of a daylight responsive system constitutes a serious impediment to their widespread use. Furthermore, installation details and tools regarding their photosensor position ... -
Occupant interaction with the interior environment in Greek dwellings during summer
Drakou, A.; Tsangrassoulis, A.; Roetzel, A. (2011)User behaviour significantly affects energy consumption simulation estimates, which can consequently influence architectural design decisions at an early stage. Different regional behavioural patterns could, therefore, ... -
On the influence of building design, occupants and heat waves on comfort and greenhouse gas emissions in naturally ventilated offices. A study based on the EN 15251 adaptive thermal comfort model in Athens, Greece
Roetzel, A.; Tsangrassoulis, A.; Dietrich, U.; Busching, S. (2010)According to the Intergovernmental Panel on Climate Change the buildings sector has the largest mitigation potential for CO2 emissions. Especially in office buildings, where internal heat loads and a relatively high occupant ... -
Quantifying energy savings in daylight responsive systems: The role of dimming electronic ballasts
Doulos, L.; Tsangrassoulis, A.; Topalis, F. (2008)The application of lighting control technologies with photosensors has led to an increase in public interest. Although these technologies have been promoted during the last years their successful use in buildings has been ... -
A review of occupant control on natural ventilation
Roetzel, A.; Tsangrassoulis, A.; Dietrich, U.; Busching, S. (2010)According to IPCC (Intergovernmental Panel on Climate Change), the largest use of energy in commercial buildings is space heating in colder climates and air conditioning in hot climates. In Europe, the Directive on the ... -
The role of spectral response of photosensors in daylight responsive systems
Doulos, L.; Tsangrassoulis, A.; Topalis, F. V. (2008)Lighting control technologies using photosensors have a great potential for energy savings in areas with high levels of daylight. Although the proper application of these controls can exploit this potential, unfortunately, ...