I remain in the rustic town of Phaltan in western Maharashtra. Phaltan climate is gentle, however in the long periods of April and May, the air temperatures arrive at 45°C.
Throughout the previous 33 years, I have been living in a house which is inactively cooled. I structured and assembled the house and its cooling framework in 1984. The house has 16-inch thick stonewalls, and on the rooftop we have put a green shade net on a basic point edge to stop the sun warming up the rooftop surface. The rooftop surface is secured with jute gunny sacks which are sprinkled with water either more than once per day.
This basic framework cools the house pleasantly. Cool Solutions The vanishing water from the doused gunny sacks cools the rooftop, and the roof fan inside the room drives the chill air off.
The green shade net doesn’t permit the immediate daylight to warm the gunny sacks, so along with the vanishing water, they stay cool for the duration of the day and night.
This coolness is led through the rooftop to make the room cool.
We additionally close the windows and attract the drapes the morning with the goal that radiative warmth and glare don’t come inside the room. The 16″ thick dividers have a warm slack of around 10-12 hours, and subsequently permit the warmth to come inside the house through the dividers just late around evening time.
Along these lines, when the outside temperatures have been 40-45 Centigrades, our home has stayed cool with temperatures around 28-30 Centigrades inside, and under the roof fan, it can some of the time become nippy.
This straightforward housetop cooling framework is an extremely viable cooling framework, with next to no vitality and cost included. The gunny sacks keep going for around two years, after which they should be supplanted, and the water prerequisite is just 1.5 liters per square meter.
Costing done by us has demonstrated that this framework is one-tenth the expense of a customary electric A.C. framework, and when the power flexibly is unpredictable—particularly during summer—the housetop framework gives a very financially savvy strategy for cooling the house.
Likewise, the capital expense of this framework, including the shade net and gunny sacks, is just ₹250 per square meter.
This framework can likewise work pleasantly in existing houses which have slim block dividers, since 80 % of the absolute warmth input originates from the rooftop.
It should, be that as it may, be called attention to that this framework works best in zones which have dry summers. With high mugginess conditions, the rooftop vanishing will be less, and thus cooling will drop.
We additionally utilize this framework in our workplaces, and bunches of individuals have replicated this basic procedure for their home and workplaces.