درخت حوزه‌های تخصصی

Soil is among the cheapest and most available materials found in the human living environment. Seeking refuge in the heart of earth and benefitting from soil’s thermal property, based on experience, is a strategy employed in the past across some regions. Also the passive systems are amongst the cheapest methods of providing heating and cooling demands of the buildings. These systems experience the lowest impact of environmental degradation while increasing the energy efficiency of the building through decreasing heat gain and loss. The idea of the earth-sheltered buildings is amongst the passive construction that has been embraced by the architects. An earth-sheltered building, as a passive idea, can guarantee, extensively, the reduction of energy consumption and provides the required conditions for thermal comfort. The present study discusses and investigates the thermal performance of earth-sheltered residential buildings in Yazd city of Iran. To predict this type of constructional thermal behavior, subsequent to field and library studies, thermal simulation was employed using Energy Plus software. Energy Plus software is able to simulate the envelopes adjacent to soil. The simulation process is conducted through depth changing of the soil surrounding the sample, assuming its thermal properties are constant. Considering to the results, by increasing the depth of sheltering in amount of soil, its energy consumption saving will increase. In this situation annual temperature fluctuation decreases 50% and it saves about 67% of energy consumption. In addition the most hours set on thermal comfort zone. This subject adds 50 more days to annual Earth-Sheltered acceptable thermal comfort conditions. Moreover due to investigating of the building orientation as an effective element for energy consumption, south orientation is specified as the best position for energy reduction in Earth-Sheltered.

The increase in environmental pollutions and the daily increasing destruction of the ecology have caused worries in the societies and drawn their attentions towards the reasons, outcomes as well as the methods of reducing them. Various factors are involved in reducing the aforesaid threatening conditions. The present study emphasizes on the role of the media and globalization of the communications and deals with the inclinations towards guarding and protecting the environment amongst the citizens residing Tehran. The present study makes use of a survey method. A total of 277 residents from Tehran were selected in urban districts one, five and fourteen. To analyze the obtained data, use was made of correlation analysis and multivariate regression test. The study findings of the correlation analysis part are reflective of the existence of a positive and significant relationship between the globalization of the communications and tendencies towards the environment conservation. As for the tendencies towards the environment protection, the study findings are suggestive of the idea that the study participants have been assessed in three levels, namely cognitive, affective and behavioral (in two dimensions of intervention and participation), and that the increase in the enjoyment of the global communications brings about an increase in individuals’ tendencies for environment conservation. These bioenvironmental analyses enable the instigation of more attention in the general public. However, the general public’s sensitivity might be provoked by means of the media and communications. It seems that the media analyses of the environment shoulders the essential role for the favorable bioenvironmental governance. Therefore, the most rational thing to do about the protection of the resources and environment is giving value to the media and communications.