Results of survey on residential active cooling as the diffusion rate of air conditioner in five principal cities of in Japan, and those associated “human temperature sensitivity” for passive and low energy cooling are described. Increase in air-condition

The paper describes the design and control methods for many aspects of energy consumption in a building,mainly lighting and heating / cooling, using the EIB / KONNEX technology. The basic objective is to present a modularly expandable and generally adaptabletechnology in order to progress from the stage of individually designed systems towards to wide range reliable integrated systems.

Measurements of indoor pollutants have been performed in 50 residences in Athens. The concentration of CO2, CO, TVOC’s and PM2.5, PM10 has been measured. The ventilation rate in the dwellings has been calculated using continuous measurements of the CO2 co

Wind speed characteristics in the centre of a city differthan the ones in its suburban. Street canyon effects result in weak airflows in the centre of highly dense citiesbecause of the combination of inertia and gravitationalforces. A huge experimental campaign took place in the centre of Athens in order to create a database of the main parameters that affect wind speed characteristics.Previous studies aimed to calculate wind speed in urban canyons by using deterministic techniques.

The integration of research outputs on the cross ventilation is tried in order to quantify the reduction of cooling energy, by raising the stepwise questions and by reviewingexisting knowledge useful to find solutions. Through the integration, it will be possible to estimate the sensitivity of errors of discharge coefficients and wind pressure coefficients on the cooling energy and to determine the necessary accuracy.

Regular air tightness and infiltration measurements were performed in forty houses, in the area of Attica, Greece. Two measurement methods were used, the tracer gas decay method and the Blower Door tests method. BlowerDoor measurements were done in accordance with EN ISO 13829 [1]. Ambient conditions and temperature fluctuations inside the houses were measured as well.A classification of houses examined, based on experimentsresults was acted out in accordance with EN ISO 13790 [2].

The present paper deals with the experimental analysis and monitoring of the energy and environmental performanceof a green roof system installed in two residences,in the region of Athens, Greece. The one is located in municipality of Psichico and the other in municipality of Peristeri. The analysis was carried out in two phases.During the first phase, monitoring of the green roof systemwas performed.

The purpose of ventilation is to dilute indoor contaminantsthat an occupant is exposed to. In a multi-zone environment such as a house, there will be different dilutionrates and different source strengths in every zone. Most US homes have central HVAC systems, which tend to mix conditions between zones.

One of the research areas of the Energy research Centreof the Netherlands (ECN) concerns the built environment.Several facilities to conduct research activitiesare at ECNs disposal. One of these facilities, are five research dwellings located on the premises of ECN. Measured data from these facilities together with weather data and computer models are used to evaluate innovative energy concepts and components in energy systems.

This study aims at examining the reduction of indoor air contaminants by plants placed in an indoor space.Field measurements were performed using Aglaonema brevispathum, which were verified as air-purifying plants by NASA.Two conditions for the amount of plant was used in two separate rooms whose dimensions are identical.