Review on Passive Ventilation system for Improved Indoor Environment | Original Article

ABSTRACT:

Passive systems ventilation systems are gaining its popularity over mechanical ventilation systems due to its inherent characteristics which help in reducing cost during operation, lower requirement of powerenergy as well as reduced emission of carbon dioxide. Various types of ventilation systems are available which utilizes solar energy and wind energy and as well as its combination are also used. The present study gives the systematic review of the passive ventilation systems for achieving indoor environment thermal comfort. Variety of passive systems which can deliver thermal comfort. Both experimental and CFD simulation both are rigorously utilized by the researchers for analysis of various passive ventilation systems.CFD simulation ventilation systems are devised by various researchers i.e. wind driven, solar driven and hybrid found to be an effective tool to design earth -to-air heat exchanger (EAHE).It can be also conclude that hybrid systems which contains solar chimney, wind tower as well as underground systems can yield indoor environment.