Search results

To evaluate the control strategy for a hybrid natural ventilation wind catchers and air‐conditioning system and to assess the contribution of wind catchers to indoor air environments and energy savings if any.

Most of the modeling techniques for assessing wind catchers performance are theoretical. Post‐occupancy evaluation studies of buildings will provide an insight into the operation of these building components and help to inform facilities managers. A case study for POE was presented in this paper.

The monitoring of the summer and winter month operations showed that the indoor air quality parameters were kept within the design target range. The design control strategy failed to record data regarding the operation, opening time and position of wind catchers system. Though the implemented control strategy was working effectively in monitoring the operation of mechanical ventilation systems, i.e. AHU, did not integrate the wind catchers with the mechanical ventilation system.

Owing to short‐falls in the control strategy implemented in this project, it was found difficult to quantify and verify the contribution of the wind catchers to the internal conditions and, hence, energy savings.

Controlling the operation of the wind catchers via the AHU will lead to isolation of the wind catchers in the event of malfunctioning of the AHU. Wind catchers will contribute to the ventilation of space, particularly in the summer months.

This paper demonstrates the value of POE as indispensable tool for FM professionals. It further provides insight into the application of natural ventilation systems in building for healthier indoor environments at lower energy cost. The design of the control strategy for natural ventilation and air‐conditioning should be considered at the design stage involving the FM personnel.

In recent decades, Iranian vernacular architecture has defined the local architectural identity by demonstrating distinctive characteristics. Defining such a critical role for vernacular studies has led to different approaches in the design of the contemporary architecture of Iran. The first approach of integrating vernacular and contemporary designs has focused on local people, their needs, local construction, and building materials. The revival of vernacular architectural design and building elements has been at the forefront of this approach in Iran. However, recent use in Iran has concentrated on the symbolic/abstract reuse of vernacular building forms. Vernacular architecture is known to merely provide for the functional requirements of buildings, and not for aesthetic purposes. Conversely, in the second approach, vernacular building elements are considered to be symbols of local identity. This paper will argue that although the symbolic reuse of vernacular features may not uphold the functional expectations of the vernacular form, this reuse is useful in reviving architectural identity. In addition, underscoring such a different role for vernacular building features in contemporary architecture might help to expand the realm of vernacular studies. Thus, the purpose of this paper is to provide an overview of the conversion of vernacular architecture in Iran by focusing on the instance of wind-catchers. Wind-catchers typically were used in residential buildings and are considered potent symbols of climate adaptation. In contemporary architecture, however, a form of wind-catcher has been used as a symbol for local architectural identity. Through this transformation, the essential nature of the wind-catcher has found new life in the contemporary architecture of Iran.

This paper aims to explore the efficiency of natural ventilation in the bedrooms of typical two-storeyed row houses with newly reconfigured design that incorporate rooftop wind catchers and side windows to create cross ventilation.

A CFD program was used to assess average air velocity coefficient (Cv) in 32 airflow cases. Parameters include location of openings with respect to wind direction, inlet-to-outlet area ratio (IOR) and opening-to-floor area ratio (OFR).

The results reveal that indoor air velocities in the cases of air entering wind catchers are generally higher than those in the cases of air entering side windows while air velocities at the openings are the opposite. The IOR of 1:2 provides best results in terms of both velocities of the indoor air and velocities at the openings. Increasing the OFR from 20% to 50% generally improves indoor air velocities and airflow rates.

This study proved that the new solution of combining one-sided wind catchers and side windows can effectively solve the problem of ventilation uniquely existing in the conditions of typical row houses by catching prevailing wind from two opposite directions into multiple rooms. The results are given as non-dimensional air velocities, which can be interpreted with any climatic data, and therefore can be applied to row houses in any locations and climatic conditions. The findings can create a new and efficient design of row houses that benefits building industry.

The purpose of this paper is to introduce and discuss 11 strategies and 11 sets of tools to provide a knowledge background on how native people of Iran have come up with innovative solutions to create a sustainable and comfortable living environment within the confinement of their homes, in harsh environment of Iran’s hot-arid and hot-humid regions.

These strategies include density, building orientation, introversion, design for four seasons, using local materials, using the ground’s thermal capacity, natural wind induced ventilation, using walls’ thickness and porosity, Panãm (insulation), using special native additive elements and integration of water and plants into the building. Discussed tools include water, courtyard, Showãdãn, Bahãr-khãb, roof, korsi room, ratio and Pãyãb, Sardãb and Howz-khãneh, Shanãshil, Bãdgir and Eivãn.

In conclusion, interrelations between these strategies and tools are illustrated in order to provide a collection of guidelines and inspirations for those involved in the building industry in Iran and Middle East to come up with innovative solutions for creating a sustainable and comfortable living environment in this region’s climates.

This paper provides a collection of guidelines and inspirations for those involved in the building industry in Iran and Middle East to come up with innovative solutions for creating a sustainable and comfortable living environment in this region’s climates.

Several calls have been everywhere asking for proper use of passive design tools like shading devices, insulation, natural ventilation and solar panels in building architecture of hot-dry area in order to improve the thermal performance of indoor spaces. This paper examines the effect of these passive tools on indoor thermal performance which in turn helps arrange thermal priorities properly. Herein, basic principles of Successive Integration Method (SIM) have been utilized for an integrated design of two floors with small openings integrated with floor cooling, solar panels, natural ventilation, shading devices, and insulation. As a result, create priorities of passive tools that are structured consequently for ventilation, insulation, solar panels, and shading devices. This structure could guide designers and builders to set their priorities for the new development of building construction.

The need to design buildings with due consideration for bioclimatic and passive design is central to promoting sustainability in the built environment from an energy perspective. Indeed, the energy and atmosphere considerations in building design, construction and operation have received the highest consideration in green building frameworks such as LEED and BREEAM to promote SDG 9: Industry, Innovation and Infrastructure and SDG 11: Sustainable Cities and Communities and contributing directly to support SDG 13: Climate Action. The research literature is rich of findings on the efficacy of passive measures in different climate contexts, but given that these measures are highly dependent on the prevailing weather conditions, which is constantly in evolution, disturbed by the climate change phenomenon, there is pressing need to be able to accurately predict such changes in the short (to the minute) and medium (to the hour and day) terms, where AI algorithms can be effectively applied. The dynamics of the weather patterns over seasons, but more crucially over a given season means that optimum response of building envelope elements, specifically through the passive elements, can be reaped if these passive measures can be adapted according to the ambient weather conditions. The use of representative mechatronics systems to intelligently control certain passive measures is presented, together with the potential use of artificial intelligence (AI) algorithms to capture the complex building physics involved to predict the expected effect of weather conditions on the indoor environmental conditions.

Despite worldwide climate change and the problems caused by using fossil fuels, energy consumption in the world keeps rising every year. The areas with extremely cold or scorching climates are large, and significant amounts of energy are getting used in these areas for heating, cooling, and ventilation. The general purpose of this study is to investigate the possible relationship between the climatic characteristics of the Esfahak, a village located in the hot desert region of Iran, and the physical characteristics of its built environment.

The method of this research is qualitative and somewhat descriptive-analytical. In this regard, the architectural features of Esfahak village are compared with the principles mentioned in the Mahoney tables to determine the degree of compliance of the architecture of this village with the climatic condition.

The results show that design principles have been used in all indicators discussed in the Mahoney tables. By applying these principles, not only did the acute weather conditions not prevent the initial settlement in the village location, they have not caused inhabitants to leave the site over time as well.

The impacts of bioclimatic design strategies on thermal comfort in hot desert regions are seldom studied. This research provides evidence-based and informed design recommendations that can help building designers and city authorities integrate bioclimatic design strategies at the earliest conceptual design phases in hot desert climates.

Natural ventilation is an environmentally friendly effective way of improving thermal comfort and the quality of indoor conditions if applied properly. This study aims to investigate the physical mechanism of the air movement and also the influence of building geometry in a cross-ventilated room through a parametric study of window geometrical characteristics using computational fluid dynamics.

Momentum and continuity equations are solved by the control volume method using a commercially available software. Standard k−ɛ turbulence model is employed to simulate the incompressible airflow and SIMPLE algorithm to solve the conservation equations. Mean air velocity magnitude is measured at three different surfaces of different heights, and the effect of incoming wind velocity inside the building is studied.

The research concluded that window hood and sill projections reduce indoor wind velocity magnitude, play a major role in incoming wind direction and thus have a crucial impact on wind circulation and indoor air quality.

The paper has evaluated redesigning of a both practical and ornamental architectural element named Palekaneh, which is found in many historical buildings in several hot places in the world. Its optimal design could increase indoor natural ventilation quality and decrease a space's cooling load. Therefore, a new passive cooling architectural element could be re-introduced to the regions previously enjoying such ornaments. This is economically efficient because it eventually saves a considerable amount of energy in the long run and is socially important because of the revitalization of architectural identity.

The role of a building envelope's physical features, although being studied for solar absorption and daylight availability, has rarely been investigated for natural ventilation, especially in a small scale, thus making the paper novel in this regard. This provides a guideline for designers to assess the impact of their design on redirecting wind-induced natural ventilation the very early stages of design.

Sustainable design is a new paradigm to localize sustainable development. The Union Internationale des Architectes (UIA) prepared guidelines for architectural projects to contribute to the Sustainable Development Goals (SDGs). Using the theory of change, the Department of Architecture at Menofia University set the 2023 graduation project to explore the possibility of adopting sustainable design principles and integrating SDGs into architectural education. The paper documents and evaluates the experiment to drive best practices and lessons learned.

The paper utilized a mixed design strategy utilizing qualitative and quantitative techniques. It gathered data from various sources, including a student questionnaire and unstructured interviews with external examiners. Data analysis included frequency distribution and sentiment, content and thematic analyses. Triangulation is applied, combining data, investigator and methodological triangulation to enhance the paper’s validity.

Integrating SDGs into the 2023 graduation project contributed to students’ understanding of sustainable urban development. Students demonstrated varying receptiveness to guidelines, focusing mainly on the SDGs (1-5, 7, 8, 10 and 11). Gender equality and economic empowerment struck a chord with the mostly female students, acknowledging that securing well-paying jobs is a way to escape the cycle of poverty. Challenges included limited resources and time constraints, a scarcity of Arabic reading materials and misunderstandings among students and staff, thus prompting collaborative efforts beyond standard studio hours. Despite challenges, the initiative contributes to sustainable urban development, providing valuable lessons learned and insights.

Integrating sustainable design principles into architectural education is doable but involves a complex process requiring careful preparation. The value lies in the tangible impact on sustainable urban development, emphasizing the importance of incorporating sustainable development concepts throughout the architectural curriculum. The authors advocate for increased awareness and education among stakeholders and suggest areas for future research by exploring a broader implementation and assessing the long-term effects on students’ mindsets and practices. Sustainable development is a means toward community prosperity, and the inquiry highlights the collective responsibility of scholars, practitioners and students in shaping a better future.

As we opened this chapter in relation with Loyla's life, we did so with a transcript excerpt from a research conversation in which Loyla spoke about a series of experiences shaping much unhappiness in her life; they were experiences also creating significant concern for Orie. On the day in May when Loyla, Orie, and Janice engaged in the conversation from which the transcript excerpt is taken, Orie and Loyla had, just hours prior, participated in an after-school meeting with Mrs. Gallagher. Orie explained to Janice that she had requested the meeting as a result of a series of situations unfolding over a number of months between Loyla, Cicily, and Ahlam. Recounting the events to Janice, Orie began with Loyla's shift in inviting Ahlam to her birthday party. Initially, Loyla suggested Ahlam as a friend she wanted to invite but then, the next morning, she told Orie she no longer wanted to invite Ahlam because Cicily had said that if Ahlam was invited, she would not attend (Journal entry, Orie, December 8, 2008).