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Late 1980s Usha Prima, one of the most common ceiling fans in India. Meanwhile, ceiling fans became very popular in other countries, particularly those with hot climates, such as India, Pakistan,Bangladesh and the Middle East, where a lack of infrastructure and/or financial resources made energy-hungry and complex freon-based air conditioning ...
BEE Star Label is a program run by the Indian government's Bureau of Energy Efficiency under Ministry of Power that promotes energy efficiency. The program provides information on the energy consumption of products and devices using different standardized methods. The program for rating electrical appliances started in May, 2006.
The current version, AMCA 230–12, reintroduced airflow rate with a revised equation, and new efficiency metrics. The official scope of the standard was limited to ceiling fans under 6 feet (1.8 m) in diameter. [9] Therefore, the current standard does not apply to HVLS fans. A new version of the standard is currently under review.
In parts of the world such as India, where the temperature reaches above 100 °F (38 °C), standing and electric box fans are essential in the business world for customer comfort and an efficient work environment. Fans have become solar-powered, energy-efficient, and battery-powered in places with unreliable energy sources.
In summer, ceiling fans and table/floor fans circulate air within a room for the purpose of reducing the perceived temperature by increasing evaporation of perspiration on the skin of the occupants. Because hot air rises, ceiling fans may be used to keep a room warmer in the winter by circulating the warm stratified air from the ceiling to the ...
These small handheld devices are still used by millions when ceiling fans stop working during frequent power outages. In the colonial age, the word came to be used in British India and elsewhere in the tropical and subtropical world for a large swinging fan, fixed to the ceiling, pulled by a punkah wallah during hot weather. [1]