The management of indoor air quality is accomplished by various types of complex mechanisms related to indoorenvironment and recently, an integrated solution applying state of art technology is being presented pertainingto the management of indoor air quality.Currently in Korea, an intelligent type certification programis developed and enforced.

In order to overcome the increasing energy demand in buildings and related environmental problems, new efficientenergy technologies and new integrated building concepts, like solar passive and mixed-weighted thermalmass buildings, are being developed. The energy efficiency should not be the only parameter to consider in high-performance building design.

For a high density city, given the need to accommodate a fix amount of building volume, what can one do to optimise the benefits of the natural (air) environment? It is hypothesised that in densely built cities, the amount of gaps, permeability and porosity of the cityscape will affect the ventilation / wind environment. Using wind tunnel, experiments are conducted with different amount and positions of gaps of a simplified city layout.

The performance of natural, mechanical and hybrid ventilation systems was monitored, using the tracer gas decay method, in three typical apartment buildings locatedin two street canyons, during summer period 2002 in Athens. The multi-zone methodology has been adoptedbased on the mass balance of two tracer gases (N2O and SF6) to define the air change rates. The air-exchange efficiency was determined for different ventilation systems,on the basis of the room mean age of air.

The use of windows is a key adaptive opportunity in naturally ventilated buildings especially in summer when the building is likely to be free-running. In these circumstances the use of windows can be on important key to occupants remainingcomfortable, particularly in warm weather. This aspect of buildings is poorly covered in existing thermal simulations in which occupant behaviour is ignored or presented in a very basic fashion. This paper presents an approach to the simulationof window opening behaviour which has been developed from observations of occupant behaviour in UK offices.

It is difficult to design indoor environment under natural ventilation because there is insufficient knowledge to evaluate the effect of the natural ventilation space quantitatively.Especially, natural ventilation rate is not yet fully understood.In this paper, the properties of the naturalventilation with large openings are examined mainlyfrom the measurement result of ventilation rate.

The energy performances of a summer air-conditioningsystem with variable airflow destined fora sole air-conditioned open-space environment which hosts a call-centre are presented. With a simple plant configuration,implementing an opportune control strategy aimed at the simultaneous satisfaction of sensitive and latent loads, the principle energy indexes and thermal comfort with reference to a location with a typical Mediterraneanclimate (Cosenza, Southern Italy) were identified.

Research of adaptability to manufacture of application of designs from porous concrete with the help of methodsexpert estimating has shown a high level of adaptabilityto manufacture of the developed decisions in view of factory, transport, assembly, operational adaptability to manufacture and adaptability to manufacture of modernizationand reconstruction. Thus the integrated criterionof adaptability to manufacture is equal 0,665, that promotes increase of general efficiency of process of erection little floors town-planning complexes.

A food odor spread is one of the air quality problems in high rise residential buildings in Korea. The food odor is mainly produced during the cooking of food. The food odor is generated in the limited spaces like in the kitchenand at a table. The ventilation systems in the buildingsdesigned to control air quality actually make the food odor spread more widely. To control the food odor spread, another types of ventilation systems are needed.In the paper, the kitchen ventilation system to prevent the food odor spread is introduced.

Numerical and experimental results concerning the emission of a tracer gas (N2O) inside a naturally ventilatedgreenhouse are presented and analyzed. Air sampleswere continuously taken at six points in the greenhouseand in two positions outside the greenhouse using two infrared gas analysers with multiple inlets. The calculationsby the numerical model were done for several wind directions and wind speeds. In each set values for the experiments were used for air speed and direction.