Journal of Contemporary Urban Affairs (JCUA - Alanya Hamdullah Emin Paşa Üniversitesi)
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A Simple Heliodon System for Horizontal Placed Models
No full textMost probably, all our buildings are affected by sunlight. Hence, the ignorance of the sun’s impact results in overheating, glare, and missed opportunities for the positive use of daylight, leading to wasted energy. Heliodon is considered to be a powerful tool that can aid students, professionals, building developers and users to better understand the relationship between the sun’s path and its effects on the architectural model(s). Most of the heliodons are relatively expensive and complex in operation. Thus, the need to design and build a simple and relatively inexpensive one emerged. It was proposed to work on this heliodon as a team project in the environmental control class “fall-2016”. The authors put the design concept and introduced a mathematical calculations table to be used with the physical heliodon, while nine students participated in the manufacturing process. The design concept is based on determining the sun’s position by converting the Altitude and Azimuth angels to their corresponding measurements on the (X, Y & Z) coordinates (in relation to the observer’s location). One light source can be moved on a set of graded tubes assembled in the shape of a wireframe box (thus the X, Y & Z distances could be measured) to simulate the sun’s position and its lighting conditions for any latitude, at any time for any chosen day
Sustainability in Historic Urban Environments: Effect of gentrification in the process of sustainable urban revitalization
No full textoai:ojs2.admin.iccaua.com:article/3Considering the three-dimensional process of sustainability (physical- economical and social), the aim of conservation for making historic urban environment sustainable should be matched with these dimensions. Therefore, earlier conservation policies have progressed from a simple and restrictive concern with preservation to an increased concern for revitalization and enhancement. This means a physical revitalization may be short-lived and un-sustained. Within the process of revitalization, historic environments become the main locations of gentrification induced by urban revitalization which may involve social cost. Accordingly, this paper develops theoretical concepts on “sustainability in historic urban environment” with a particular emphasis on a social issue in terms of gentrification. Also with the result derived from theoretical parts concludes that social changes through gentrification contribute to sustaining the historic environments
In Pursuit of Sustainable Strategic Long-term Planning Throughout Meta-postmodernism as New Perspective of Stylistic Design
No full textDuring the different period of architectural design, designers attempt to achieve a high level of life quality for all users. Architecture and urban planner want to provide a style of design which not only achieves different function for different users with respect to their ethnicity, ability, age, sex, capability, position, and lifestyle but also improve the friendly environment throughout responsive legislation based on long-term planning. Although the styles are considered some indicators, it is ignored the other important characteristics. Therefore, the existing styles never achieve the standard level of satisfaction of different people. The goal of the research is to introduce meta-postmodern style as supplement stylistic approach. The style tries to consider all important indicators that create strategic long-term planning for different generations. Various characteristics of a new style can be applied to improve the quality of human life and provide healthy, livable and sustainable planning for all users
Urban Cages and Domesticated Humans
No full textIn this article, the study assessed the domestication process of humankind within the frame of urbanization and power accumulation. Within this framework, by giving various examples from chicken farms. The study expresses the author’s opinions on the analogy of the “liberated human beings” in cities and the “free-range” chickens in farms. It has also been tried to explain how a city acts as a human farm. Cities are governed by the ones holding power similar to the farms are ruled by farmers and humans during their history of civilization have lost their right of deciding on their lives and fates against this power as the domesticated animals in farms. It is necessary to give up these cities which are models of life organizations from the Old and the Middle Ages. Models of settlements which became even more inhumane as results of modernization and neo-liberalization strategies. The study revealed that With the scientific and technologic improvements and the developments of in science and humanities, it is possible to easily replace the city model of communal life with a better one -The one in which people can be more free and happy and will give more life to the earth and contribute to the aliveness within it
The inspiration of Bauhaus principles on the modern housing in Cyprus
No full textModern architecture developed more than a century ago to find solutions suitable to solve the new concerns of the industrial revolution that changed the social idea of the world in all aspects. Bauhaus school which established by Walter Gropius in 1919 adopted too many principles and ideas that were totally new to the architectural concept and theory at that time; their principles started from Simplicity, Angularity, Abstraction, Consistency, Unity, Organization, Economy, Subtlety, Continuity, Regularity, and Sharpness. Those principles affected the architectural world and found its way through many applications in different parts of the world. The unlimited space or the international space that had a significant influence on the architecture space and form as well as the introduction of the new material, the anti- decorating, and Platonic forms had worked to reconstruct the architecture in the world. Cyprus as an island close to the sources of the movement got the influence from the modern movement. The study will concentrate on Efruz Housing which designed by Ahmet Vural, who developed the project in the 60th of the last century. The aim of the research is to find the relationship and effects of Bauhaus school in Cyprus through studying and analyzing some of Ahmet Vural works. The methodology will depend on a comparison with the traditional housing that preceded Mr. Vural work and how the Modernism changed the main features of the housing on the Island
Membrane Permeability Threshold for Osmotic Power Plant Efficiency
No full textIn a context of ever-growing electricity consumption and need for less polluting sources of energy, salinity gradient power (SGP) based on osmosis is a promising technology. Salinity difference between two solutions separated by a semi-permeable membrane leads to the pressure increase. The aim of this study is to find the critical permeability threshold of a membrane for the dimensioning an osmotic power plant. Using Spiegler-Kedem equations, the various fluxes across the membrane have been calculated, and delivered power is explicitly derived in terms of system parameters. A necessary condition for economic viability is that its upper bound is larger than a critical threshold value below which osmotic power plant is not profitable. As it is directly proportional to membrane permeability, fixing the optimal membrane permeability value will in turn enable conceive more efficient membranes specifically made for osmotic energy production, as such membranes do not exist today
Adaptive Reuse of the Industrial Building: A case of Energy Museum in Sanatistanbul, Turkey
Get PDFIndustrial buildings as an example of cultural heritage transform our cultural identity from the past to the present and even for the future. Unfortunately, there are lots of industrial building which lost its function by converting the place to live and identifiable place. This research will clarify the reasons for conserving of the industrial heritage and by classification of international charters which are dealing with industrial heritage will introduce conservation methods for adaptive reuse of industrial buildings. As a case study, the research will focus on Energy Museum in Istanbul. To assess the building based on reusing principals. The study concludes that the Energy Museum is one of the successful examples of reuse of the building. It also concludes that less intervention in reusing a building can save the identity of the building
The Transformation of Aesthetics in Architecture from Traditional to Modern Architecture: A case study of the Yoruba (southwestern) region of Nigeria
No full textAesthetics is the philosophical study of art and natural beauty and it is indicated by the feelings of pleasure or displeasure which comes from visual and aural elements and artefacts. Hence, aesthetics depends on the animate or inanimate organization which can be perceived either subjectively or objectively. This aesthetic element is uniquely present in the traditional buildings and modern buildings of the southwestern part of Nigeria. This study is set out to evaluate and bring into limelight the aesthetic characteristics of traditional buildings and that of the modern buildings, how one style or aesthetic element gradually prevail over or transform to another, reasons and consequences of one completely predominating another in Yoruba region of Nigeria. Moreover, this study therefore, is divided into four parts, which are: (a) overview of the history of modern and traditional Architecture of Yoruba land (b) aesthetic characteristics or indicators of traditional and modern architecture in Yoruba land, (c) the differences between the aesthetic of both styles of Architecture and what is responsible for this change or transformation in their aesthetic value. The research concludes with recommendations of synchronizing both styles of architecture design in getting an optimum aesthetic value and offers a room for further research and development of a consistent and notable architectural typology for southwest Nigeria
Solar Radiation Projections of Cmip5 Models for South of Brazil
Get PDFThe most critical factors in the acceleration of climate and environmental changes are related to industrial development and consequently to an increase in the demand for electricity. Looking for measures that minimize impacts on the environment, alternative energy sources are gaining more and more space in the Brazilian energy matrix. Brazil presents a great solar potential for the generation of electric energy, so the knowledge of solar radiation and its characteristics are fundamental for the study of energy use. Due to the above, this article aims to verify the climatic variability corresponding to the variations in solar radiation patterns, in the face of climate change scenarios. The database used in this research is part of the Phase 5 Intercomparison of Matching Models (CMIP5). It is important, first of all, to determine its availability in order to enable the use of solar radiation as a source of energy in a given location and/or region. The climatic projections, based on the pessimistic scenario, in a 75-year period (2026-2100) showed a fall in solar radiation in all of Rio Grande do Sul, reaching 12% in the eastern region of the state. A concern with the factors that influence the pessimistic perspectives of this scenario, as it may affect a possible production of electric energy from solar radiation
Interrelationship between nutrients and chlorophyll-a in an urban stormwater lake during the ice-covered period
No full textUrban stormwater lakes in cold regions are ice-covered for substantial parts of the winter. It has long been considered that the ice-covered period is the “dormant season,” during which ecological processes are inactive. However, little is known about this period due to the historical focus on the open-water season. Recent pioneering research on ice-covered natural lakes has suggested that some critical ecological processes play out on the ice. The objective of this study was to investigate the active processes in ice-covered stormwater lakes. Data collected during a two-year field measurement program at a stormwater lake located in Edmonton, Alberta, Canada were analyzed. The lake was covered by ice from November to mid-April of the following year. The mean value of chlorophyll-a during the ice-covered period was 22.09% of the mean value for the open-water season, suggesting that primary productivity under the ice can be important. Nitrogen and phosphorus were remarkably higher during the ice-covered period, while dissolved organic carbon showed little seasonal variation. Under ice-covered conditions, the total phosphorus was the major nutrient controlling the ratio of total nitrogen to total phosphorus, and a significant positive correlation existed between total phosphorus and chlorophyll-a when the ratio was smaller than 10. The results provide preliminary evidence of the critical nutrient processes in Stormwater Lake during the ice-covered period