In modern, extensively glazed office buildings, due to high solar and internal loads and increased comfort expectations,air conditioning systems are often used even in moderate and cold climates. Particularly in this case, passive cooling by night-time ventilation seems to offer considerable potential. However, because heat gains and night ventilation periods do not coincide in time, a sufficientamount of thermal mass is needed in the building to store the heat.

The buildings’ environment plays a very important role in health matters and the quality of life. A series of experimental measurements were carried out in the residential sector of the greater region of Athens. Parameters influencing the indoor air quali

After the terrible consequence of the Iraq –Iran war and recently USA attack over Iraq the urban green covering disappeared from large areas of the city, beside the extension of the building over the green areas. The negative effects of this phenomenon ov

which is a typical residential building in the South MediterraneanSea. The house type is also representative for second home. It is a two-storey house that is assumed to be located in Rome.The objective of the research is to compare indoor comfortconditions of two kitchens (in which internal gains are defined taking into account a traditional use of the kitchen in Southern Italy) with different window configurations,natural ventilation and solar shading strategiesto avoid overheating in summer.Both rooms have the same floor area and the same total window area.

Since 1999, several widely used building energy efficiencystandards, including ASHRAE 90.1, ASHRAE 90.2, the International Energy Conservation Code, and Californias Title 24 have adopted cool roof credits or requirements. We review the technical development of cool roof provisions in the ASHRAE 90.1, ASHRAE 90.2, and California Title 24 standards, and discuss the treatment of cool roofs in other standards and energy-efficiency programs.

Macroclimatic forces have been important factors ever since man first constructed shelter. Throughout architecturalhistory, local buildings have used great in providingthe most comfortable internal conditions possible within the exigencies and constraints of local climate.The habitual living way in Iraq is accurately reflected in the households organization, in their volumetric configuration,in the forms of useful locations they engender. Houses are compact with interior courtyard; the streets are sinuous and pass through houses volumes.

Throughout architectural history, local buildings have used great in providing the most comfortable internal conditions possible within the exigencies and constraintsof local climate.In Iraqis climates, accelerating airflow through induces evaporative cooling and across spaces, ensuring that directsunshine cannot penetrate the building and the thermalcapacity of massive structure is used to insulate and take up heat during the day and release it at night when it is cooler.

In many urban areas, pavements and roofs constitute over 60% of urban surfaces (roof 20-25%, pavements about 40%). The roof and the pavement albedo can be increased by about 0.25 and 0.10, respectively, resulting in a net albedo increase for urban areas of about 0.1. Many studies have demonstrated building cooling-energy savings in excess of 20% upon raising roof reflectivity from an existing 10-20% to about 60%. We estimate U.S. potential savings in excess of $1 billion (B) per year in net annual energy bills.

Human has developed a board rang of passive cooling techniques in various parts of the world up to a very impressive level of maturity: cliff dwellings through the world (ground cooling), wind towers (convective and mass cooling), sprinkling water with fountains (evaporative cooling), and whitewash (sun protection). All these cooling techniques were based on careful design in which heat and mass transfer principles did not make use of any mechanical energy: they were totally passive.

The consequences of the global climate change are perceptible even in Italy, where in the last 15 years the mean temperature values increased of 0.4 °C in the northern part of the country and of 0.7°C in the southern one. It is besides well known that the