Abstract—
Global climate change increases heat loads in urban areas causing health and productivity risks for millions of people. Air conditioning is growing rapidly .There has been a drastic increase in the use of air conditioning system for cooling the buildings all around the world. The last two decade has witnessed a severe energy crisis in developing countries especially during summer season primarily due to cooling load requirements of buildings. Increasing consumption of energy has led to environmental pollution resulting in global warming and ozone layer depletion. Passive cooling systems use non-mechanical methods to maintain a comfortable indoor temperature and are a key factor in mitigating the impact of buildings on the environment. Passive cooling techniques can reduce the peak cooling load in buildings, thus reducing the size of the air conditioning equipment and the period for which it is generally required. The aim of this study is to test the usefulness of applying selected passive cooling strategies to improve thermal performance and to reduce energy consumption of residential buildings in hot and humid climate and critically analyzes various passive cooling techniques and their role in providing thermalcomfort and its significance in energy conservation. The review in Chapter 2 focused on ventilative cooling. In particular, night ventilation is effective for buildings of high thermal mass and might be useful for modern houses. The review determined that due to climatic differences and lack of basic field data in hot humid climate, both basic and comprehensive studies would be required to assist application and development of passive cooling techniques for the region. and in this chapter I also focused types of passive cooling system in buildings and there importance and I also covered in Chapter 3 passive cooling techniques of vernacular houses in India and the effects of ventilative cooling in hot humid houses. The objectives were to understand the traditional passive cooling techniques and to evaluate their potential application to the hot humid houses. The review in Chapter 4 focused on classification of climates zone in India and describe the hot humid climate. And then I analyze some case studies from various climate zone and find measurement and techniques. compared the results related to the thermal performances of all the studied houses. For final conclusions, Chapter 7 summarized the main findings of this study and recommended key areas for further studies based on the limitations of this dissertation.
Keywords interior; Passive cooling technique; comfort; enegry; climate; hot&humid;
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