فصلنامه نقش جهان - مطالعات نظری و فناوری های نوین معماری و شهرسازی
سال پنجم شماره 4 (پیاپی 12، زمستان 1394)

There has long been a concern that evaluating building thermal performance on the basis of energy loads is inappropriate to achieve overall energy efficiency of houses, particularly passive houses, in temperate climates. Passive buildings designed to be free running may achieve better results in an appropriate evaluation system.
The main objective of this study is to investigate differences between thermal performances of houses in different operation modes. The paper illustrates a relationship between indicators of building performance in free running and conditioned modes. Simulation is used to compare the predicted performances of conditioned and free running houses, respectively on the basis of annual energy requirements (MJ/m2) and Degree Discomfort Hours (DDH) in temperate climate of Babolsar, Iran. Despite a strong relationship between these two indicators, some significant differences become clear leading to a discussion of the persistent technical problems and issues, which are encountered when attempting to optimize an efficient architectural design. The result of this study persuades the architects to pay more attention to the process of building energy efficient design regarding to the building operation mod. Application of this result in the building labelling system can promote the passive building design which is an important step to achieve objectives of sustainable development.

Urban heat island is a phenomenon caused by increased urban activities and transformations in the natural environment. Increased urban population and increase in the height of buildings, particularly in metropolitan areas, have led to vast changes in the urban geometry, amount of released heat, pollution rate, and meteorological parameters. All these factors contribute to the occurrence of heat island phenomenon in urban areas. Sky View Factor (SVF) is one of the main factors related to pollution, temperature variations, heat island, and other environmental parameters. Housing density policies stipulated in Tehran's detailed plan would possibly have several impacts on the sky view factor. The SVF axis of the Envi-met software uses various parameters such as topography, wind velocity, and urban morphology to simulate and measure sky view factor. This study aims to evaluate impacts of the future high-rise developments, in the Narmak neighborhood of Tehran through modeling future changes in the sky view factor. For this purpose, data related to Haft Hoz square located in the Narmak neighborhood was collected, simulated and analyzed using SVF. Results indicate that in the business as usual scenario, the factor’s value would be in a range between 0.19 and 0.77; whereas, by implementing the scenario proposed in the detailed plan the factor will decrease to fall in a range between 0.08 and 0.69. This reduction in the intensity will possibly increase heat island impacts in the study area. This study emphasizes the necessity of taking compensatory policy measures and incorporating environmental considerations in urban development plans.

Energy efficiency is one of the most important lessons which may be learnt from all kinds of traditional buildings especially in oriental countries such as Iran. It is very important to explain and rethink about courtyard as an invaluable archetypes in traditional architecture of Iran. Literature review of the paper show that courtyard in general, is a place in which family in all kinds, gather for inter-generation relationships. In traditional architecture of Iran courtyard enjoys some practical functions as well as metaphorical ideas. This paper is to make a comparative modeling of summer courtyard and winter courtyard for cold climate with particular reference to Iranian cold climate in North West parts in which most of winter times, conventional courtyards are useless because of harsh climate. Thus the research focuses on analyzing temperature of courtyard in once in case – winter courtyard; and then in control – summer courtyard. Methodology of the paper focuses on case – control techniques in which one sample plays the role of case and the other sample is considered as control. Ardebil traditional houses selected as case studies of the research for modeling. The results of the paper emphasize on efficiency of winter courtyard in comparison with summer courtyard.

In new issues of durable architecture, it is tried to decrease negative effects of new architecture on environment. What is perfectly obvious is making the elements homogenous to their climatic function which was the art of our antecedents. Implementing the windward construction technique, our antecedents have well used the raw and uncontrolled flows of wind. They handled the wind and made it mild, remove the dust and created mild air-conditioning which represents the past environmental stability of Iranian architecture. Using the windward had been conventional in Iran since many years ago. Without any dependence on any kind of energy and without exploiting establishment appliances, it provides the coldness of residential places. This is the same issue on creating stability in environments where humans live in. In this research, the capabilities and limitations to use windward in salt desert's cities of Iran during today's age in were assessed to achieve some criteria quantitatively and qualitatively to enhance the windward and to provide the necessary ground for more efficient use of it. This research is of descriptive- analytical kind. Statistical population of this research includes university professors and architecture authorities in Iran. 30 persons of them were questioned directly. After survey data collection through the questionnaire, the relationships between research variables were tested by implementing swot technique. The obtained results suggest a windward in order to solve the weaknesses of previous air traps parallel to today's need. It indicates that giving the efficiency again to the windward’s by creating some changes in it proportional to today's need of users and in order to enhance its efficiency, provides the conditions to achieve some parts of a sustainable architecture.

Designing buildings with the lowest possible cost base is an essentiality in sustainable architecture. Previously, due to the computational complexity of building's energy consumption, the environmental impact on thermal and lighting energy consumptions havent been considered simultaneously. As non-linear relationships are often disclosed, a comprehensive approach is necessary to reduce the total energy need of a building and optimize the façade configuration at the same time. Solar radiation affects thermal and lighting energy consumption which depends on building fabric’s characteristics. In this paper a parametric method to optimize the window size and sunshade dimensions of an educational building in mild climate of Iran is presented. Through integrating thermal and lighting energy consumption, 6750 window and sunshade configurations are studied and compared. First, climatic parameters and thermal analysis are validated by on-site measurements. Then, the characteristics of the simulated model and all thermal and lighting parameters have been defined. Finally, the best solution is optimized through genetic algorithm. The results show that, in the first phases of the design process building’s characteristics should comply with national code regulations and then components of the building will be optimized. Additionally the horizontal windows with higher sill levels are more energy-efficient in classrooms.

This essay tries to introduce the importance and efficiency of interactive architecture, also tries to clarify, what the meaning of interactive architecture is and how it can affect our lives in the near future. Interactive architecture depicts a viewpoint for the future via composition of emerging technologies with architecture. This viewpoint has been constructed by the convergence of embedded computation and kinetic counterpoint that make adaptability between interaction of human being and environment. The reason of making these systems is for creation of objects and spaces that can afford variable necessities of individual, social and environmental demands. Progress will be accomplished if the interactive systems can be part of wide spreading systems not being individual. Prediction of this matter that how long does it take that interactive architecture would be accepted by the people is very hard to say but it is not hard to say that they will be integrated part of construction in the future. Future of architecture will employ novel methods and unique utilization of smart technologies that can respond properly to the dynamic, adaptable and growing functions. It is up to architects and professionals to conceive the matter appropriately that can depict and predict successful future for the architecture.

The present architecture is more ever relied on components by contribution of modern architectural technology provided comprehensive outcomes both directly and indirectly, it is evident that there is interactional architecture as a new fashion by reviewing related backgrounds, the strategy ascribed to the present paper focused on quasi laboratory prototype based simulation and modelling to devise a latest technology with an aim of creating prototype out of interactional architecture, the present study embarks on novel atmosphere for interaction between man and environment by operation of acoustic tube finally to create a novel fade rests on interactional architecture since acoustic tube provides significant function in manipulation of efficient configuration out of interactional architecture.