Essay: SOLAR PASSIVE ARCHITECTURE

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  • Subject area(s): Architecture essays
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SOLAR PASSIVE ARCHITECTURE FOR THERMAL COMFORT OF RESIDENTIAL BUILDINGS IN WARM-HUMID CLIMATE OF THANJAVUR REGION
ABSTRACT
Solar passive architecture concepts and principles are used in traditional buildings worldwide. Extensive research works have been done on the analysis of thermal performance of such traditional buildings and found they are well within the comfort range as prescribed by thermal comfort standards for naturally ventilated buildings. A novel attempt has been made in design of a residential building at Thanjavur, Tamilnadu, and South India with solar passive architecture concepts in warm humid climate condition. Thermal performance analysis was carried out with reference to solar passive architecture principles and in comparison with another contemporary house nearby in that region. In the solar passive case study building, ten solar passive architecture strategies are incorporated. The study on solar passive house indicates that solar passive techniques can bring indoor temperatures down enough for occupants of a building. The observations and analysis made suggests that we can achieve thermal comfort by designing buildings with solar passive architecture. Indoor air temperatures are comparatively much lower than the outdoor air temperatures in summer. Compared to other modern residential building, the solar passive building is more than 2 ºC to 3 ºC cooler in summer as in the traditional buildings. Thus design of the energy efficient building plays a major role to save energy which in turn will give an impact on national and global economy.
Keywords: Solar Passive Architecture building –planning and design- thermal performance analysis- modern constructions analysis- temperature and humidity- thermal comfort – warm humid climate- naturally ventilated buildings
INTRODUCTION
Accelerated urbanization and rapid change in the living standard has imposed immense pressure on the dwindling energy sources, thus aggravating the already rampant process of environmental degradation because of excessive consumption of energy and other natural resources [1, 6]. The operations of buildings worldwide contribute up to 40 percent of total global energy consumption [2, 3, 4, 5].
The basic need of all buildings is to adapt regional climatic conditions that will provide conducive and comfortable environment to the dwellers.
Now building designers face challenges to provide buildings constructed with modern building materials that will be comfortable and suitable for the 21st century [7].
The traditional buildings are considered as prime examples for their environmental design in response to the regional climatic conditions and making it more energy efficient.
From several researches it is found that traditional houses perform better thermal environment than contemporary structures [8, 9, 10, 11, 12]. The indoor environmental conditions and thermal comfort in modern houses are unsatisfactory due to improper design [13, 14]. Minimum of 10 to 20 percent energy can be saved in the native architecture compared with contemporary structures to keep the indoor comfortable. Minimum 1 to 2 degree C cooler can also be achieved in summer with such traditional houses. In the contemporary buildings, the energy used for maintaining thermal comfort is expected to mount up over the coming days, which will move the situations worse due to an …

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