High up in the Aravalli Hills of Mount Abu, where the desert light spills over temple domes and winding roads, an extraordinary kitchen hums quietly, without a single flame, spark, or puff of smoke. Here at the Brahma Kumaris’ Shantivan Complex, the world’s largest solar kitchen turns sunlight into steam and steam into 50,000 hot vegetarian meals every single day. No fuel. No electricity. Just the sun doing what it does best.
Unlike most solar setups that rely on panels, this one uses solar thermal energy, mirrors that concentrate sunlight into intense heat. Eighty-four massive Scheffler reflectors, each 9.2 square metres wide, sit on rotating frames, tracking the sun’s journey across the sky. As they move, their curved surfaces catch and focus the rays to a single point, creating intense heat, often several hundred degrees Celsius, and in ideal conditions, reaching up to around 800 °C. This focused solar energy is what powers the kitchen, producing steam that cooks thousands of meals every day - cleanly, efficiently, and without fuel.
That blazing heat is then used to produce steam. Each reflector’s concentrated beam hits one of 42 specially engineered steel receivers, which convert water into steam, more than 3,500 kilograms of it every day.
The steam is collected through insulated header pipes and directed into a central drum, from where it travels to giant cooking vessels inside the kitchen.
Source: Times of India
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