Abstract
In recent years, the concept of the usage of new energies for cooling and heating in buildings has attracted the attention of engineers. In this study, the combination of solar chimneys with wind catchers has been suggested to provide natural and pleasant ventilation. It explains the increased efficiency of wind catchers for cooling through the help of solar chimneys. In addition, with the use of solar energy for moving air inside the building by a solar chimney and using the hidden heat of water evaporation, for providing cooling, which is created at the top of wind catcher, we will be able to provide a pleasant environment with suitable temperature and humidity that complies with the standards of pleasant ventilation in hot and dry climates. In continuing this research, attention had been paid to this design for Kerman City, which is located in the hot and dry climate of Iran. Wet channels and walls with radiance are placed together with water injection systems in entrances. In addition, the turbulence model had been used to calculate the buoyancy forces and the radiance model for radiance. The project considers the system performance in a constant manner and the effect of certain parameters, including entrance air temperature, rate of injected water and rate of heat flow field, and temperature and relative humidity. Key words: Renewable energies, solar building, wind catcher, solar chimney, natural ventilation, economies in fuel usage.
Highlights
This research which relies on library studies and field research about traditional wind catchers in Iran and about solar chimneys, is based on the theory that using a solar chimney on the southern part of a building and a wind catcher on the favourable wind side, can increase the ventilation speed in wind catchers
With the use of solar energy for moving air inside the building by a solar chimney and using the hidden heat of water evaporation, for providing cooling, which is created at the top of wind catcher, we will be able to provide a pleasant environment with suitable temperature and humidity that complies with the standards of pleasant ventilation in hot and dry climates
Clean energies or so-called natural energies, are completely compatible with nature and do not harm the environment, which in as much as fossil energies are limited, expensive, and unrenewable, has encouraged people to move towards sustainable development
Summary
The efficiency of recyclable energies for building design: Cooling system supply for buildings using traditional wind catchers used in the dry and hot climate of Iran and its combination with solar chimney technology. The combination of solar chimneys with wind catchers has been suggested to provide natural and pleasant ventilation. With the use of solar energy for moving air inside the building by a solar chimney and using the hidden heat of water evaporation, for providing cooling, which is created at the top of wind catcher, we will be able to provide a pleasant environment with suitable temperature and humidity that complies with the standards of pleasant ventilation in hot and dry climates.
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