Auflistung nach Autor "Bartzanas, T."
Anzeige der Dokumente 21-40 von 65
-
Efficiency of physical means of IPM on insect population control in greenhouse crops
Vatsanidou, A.; Bartzanas, T.; Papaioannou, C.; Kittas, C. (2011)The efficiency of insect screens and photoselective covering materialson insect population control was experimentally evaluated. The experiments were performed from 2000 to 2004 in three greenhouse tomato, PE-covered ... -
Emerging Footprint Technologies in Agriculture, from Field to Farm Gate
Fountas, S.; Bartzanas, T.; Bochtis, D. (2011) -
Energy needs and energy saving in Mediterranean greenhouses
Kittas, C.; Katsoulas, N.; Bartzanas, T. (2014)A fully-automated and climate-controlled greenhouse requires heating, ventilation, cooling, dehumidification and shading systems to control the microclimate conditions and create an optimal environment for crop growth and ... -
Estimation of Ozone Trend in Central Greece, Based on Meteorologically Adjusted Time Series
Papanastasiou, D. K.; Melas, D.; Bartzanas, T.; Kittas, C. (2012)Data referring to an approximately 8-year period (1999-2007) are analyzed in order to estimate the trend of the daily maximum hourly value of ozone concentration at the east coast of central Greece, where the summer ... -
Experimental and modelling analysis of pesticide fate from greenhouses: The case of pyrimethanil on a tomato crop
Katsoulas, N.; Boulard, T.; Tsiropoulos, N.; Bartzanas, T.; Kittas, C. (2012)The distribution of a pesticide on target and non-target elements of a greenhouse, and its fate after application, was studied. The experiments were performed in a round arched greenhouse with vertical side walls containing ... -
Experimental results and spatial simulation of climate in a greenhouse with insect screens
Bartzanas, T.; Fidaros, D.; Boulard, T.; Katsoulas, N.; Kittas, C. (2011)Aim of the present paper was to present, analyze and compare detailed experimental data and CFD simulation results in a greenhouse equipped with insect screens. The studied greenhouse was a round arch type with vertical ... -
Extension and evaluation of a model for automatic drainage solution management in tomato crops grown in semi-closed hydroponic systems
Katsoulas, N.; Savvas, D.; Kitta, E.; Bartzanas, T.; Kittas, C. (2015)In the present paper, a model previously developed to simulate the course of Na+ accumulation in closed hydroponic systems as a function of plant water consumption was further extended so as to be operative also in semi-closed ... -
Fan and pad evaporative cooling system for greenhouses: Evaluation of a numerical and analytical model
Sapounas, A. A.; Nikita-Martzopoulou, Ch; Bartzanas, T.; Kittas, C. (2008)An experimental greenhouse equipped with fan and pad evaporative cooling is analysed using two different models. The first one consists of a numerical simulation approach applying a commercial CFD code. The main aspects ... -
Feasibility of a modelling suite for the optimised biomass harvest scheduling
Bochtis, D. D.; Sorensen, C. G.; Green, O.; Bartzanas, T.; Fountas, S. (2010)It has been estimated that 1/3 of forage grass is harvested drier than the optimum moisture content while another 1/3 is harvested while too wet This indicates that dedicated systems supporting decisions that affect grass ... -
Flow characteristics and temperature patterns in a fan ventilated greenhouse
Fidaros, D.; Baxevanou, C.; Bartzanas, T.; Kittas, C. (2008)The effects of solar radiation distribution during fan ventilation in an arc type tunnel greenhouse in various hours of daylight were numerically investigated. Inside the greenhouse there was a tomato crop 1.5 m tall. For ... -
Greenhouse evaporative cooling: Measurement and data analysis
Kittas, C.; Bartzanas, T.; Jaffrin, A. (2001)Temperature and humidity gradients were investigated during summer in a commercial greenhouse producing cut roses, equipped with a ventilated cooling-pad system and a half-shaded plastic roof In a steady regime, the cooling ... -
Greenhouse microclimate and dehumidification effectiveness under different ventilator configurations
Kittas, C.; Bartzanas, T. (2007)In this paper, the efficiency of two different greenhouse ventilation opening configurations on greenhouse microclimate during dehumidification process with simultaneously heating and ventilation was analysed by means of ... -
THE IMPACT OF INSECT SCREENS AND VENTILATION OPENINGS ON THE GREENHOUSE MICROCLIMATE
Kittas, C.; Katsoulas, N.; Bartzanas, T.; Mermier, M.; Boulard, T. (2008)The objective of this work was to experimentally investigate the influence of vent type (side, roof, or both) and of anti-aphid insect screens on airflow, air temperature, and air vapor pressure deficit distribution in a ... -
IMPACT OF URBAN HEAT ISLAND DEVELOPMENT ON BUILDINGS' ENERGY CONSUMPTION
Papanastasiou, D. K.; Fidaros, D.; Bartzanas, T.; Kittas, C. (2013)The urban heat island (UHI) is one of the major problems that urban areas are experiencing worldwide, as it is related to various environmental and health effects. One of them is its direct impact on buildings energy demand. ... -
Improvement of greenhouse microclimate distribution by means of air mixing fans
Kittas, C.; Katsoulas, C.; Papa, K.; Thanasenaris, A.; Bartzanas, T. (2012)The objective of this work was to experimentally investigate the influence of air mixing fans on air temperature and humidity distribution in an arched roof greenhouse. The greenhouse was occupied by a tomato crop and ... -
Improving the efficiency of insect screens in greenhouses
Bartzanas, T.; Fidaros, D.; Baxevanou, C.; Katsoulas, N.; Kittas, C. (2009)A CFD code was used in order to study the influence of different types of insect screens on greenhouse microclimate and natural ventilation performance. The validity of the code was checked against experimental data. The ... -
Influence of an insect screen on greenhouse ventilation
Kittas, C.; Boulard, T.; Bartzanas, T.; Katsoulas, N.; Mermier, M. (2002)The influence of an insect screen on ventilation rate was experimentally investigated in a multispan glass-covered greenhouse equipped with a continuous roof vent, located at the University of Thessaly near volos in the ... -
INFLUENCE OF HEATING SYSTEM ON GREENHOUSE MICROCLIMATE DISTRIBUTION
Tadj, N.; Bartzanas, T.; Fidaros, D.; Draoui, B.; Kittas, C. (2010)Convective and radiative heat transfer from heating systems significantly determines greenhouse microclimate during the cold period of the year. These mechanisms are complicated because they combine free and forced convection ... -
Influence of shading screens on microclimate, growth and productivity of tomato
Kittasa, C.; Rigakis, N.; Katsoulas, N.; Bartzanas, T. (2009)In the present study, the influence of four different shading nets with different colour and shading intensity, on the microclimate and on the crop growth and development of tomato crop, was experimentally investigated. ... -
Influence of the heating method on greenhouse microclimate and energy consumption
Bartzanas, T.; Tchamitchian, M.; Kittas, C. (2005)The influence of the heating system method on greenhouse microclimate was investigated overnight, using an experimental greenhouse tunnel with a tomato crop. The heating system consisted of plastic heating pipes located ...