Abstract: Passive ventilation is a function of a driven force of wind and buoyancy; it also works as a passive cooling driven by natural wind with thermally generated pressure. It has an appropriate consistency and can provide cleaner air with low maintenance along with reduced cost and carbon emission. This paper deals to provide appropriate permanent passive ventilation to different functional spaces of the residence through Normalization of loop analysis to size the openings, slits, stack vents, and cut-outs for better ventilation as desired. The normalized equation for Passive Stack ventilation model which is applied for a case of single and double storied residence in Gurgaon, 64 DLF phase 2, Delhi, India. Each space in the residence – Bed rooms, living etc., would demand a different no.of air changes with respect to their occupancy and volume. It is found that the requisite permanent ventilation required for Living room is 15840 sq.mm Stack cross sectional area and 4070 sq.mm Slit window area, for Dining room is 16000 sq.mm Stack cross sectional area and 11890 sq.mm Slit window area, for Bedroom is 4503 sq.mm Stack cross sectional area and 3490 sq.mm Slit window area, for Toilet is 2060 sq.mm Stack cross sectional area and 1803.8 sq.mm Slit window area, for Kitchen is 16700 sq.mm Stack cross sectional area and 4290 sq.mm Slit window area during hot climate for double floor Stack model. And the requisite permanent ventilation required for Living room is 2220 sq.mm Stack cross sectional area and 9600 sq.mm Slit window area, for Dining room is 11400 sq.mm Stack cross sectional area and 9600 sq.mm Slit window area, for Bedroom is 3800 sq.mm Stack cross sectional area and 3130 sq.mm Slit window area, for Toilet is 5510 sq.mm Stack cross sectional area and 3070 sq.mm Slit window area, for Kitchen is 2340 sq.mm Stack cross sectional area and 2070 sq.mm Slit window area during hot climate for single floor Stack model. Similarly, it is found that the requisite permanent ventilation required for Living room is 9040 mm2Stack cross sectional area and 5820mm2 Slit window area, for Dining room is 16000 mm2Stack cross sectional area and 14300mm2 Slit window area, for Bedroom is 5000 mm2Stack cross sectional area and 4470 sq.mm Slit window area, for Toilet is 2171 mm2 Stack cross sectional area and 2065 m2Slit window area, for Kitchen is 9530 sq.mm Stack cross sectional area and 6131 mm2 sq.mm Slit window area during cold climate for double floor Stack model. Because of the moralization, as per the standards and context, areas have been evolved with respect to the carpet area and volume meant for a maximum of 5 to 7 persons. The proposal may also satisfy the proposed standards of US ventilation standards – Standards of 1964, which apparently the basic guiding yard stick to the standards and norms developed for ventilation requirement thereafter.
Keywords: Permanent ventilation, Thermal buoyancy, pressure gradient, indoor environment, Stack effect, Normalization technique, Solar Chimneys.
Title: Assessment of Permanent Passive Stack Ventilation for Delhi Region, India
Author: Prof. Dr. Srikonda Ramesh, Karthik Chadalavada, Madhava Rao T
International Journal of Interdisciplinary Research and Innovations
ISSN 2348-1218 (print), ISSN 2348-1226 (online)
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