British India and kerosene fan केरोसिन तेल से चलने वाला पंखा

Stirling engine fans for wood stoves are a practical way to move air around a wood stove, especially when you don’t have electricity. So What’s a Stirling Engine Fan? A Stirling engine fan integrates a Stirling engine and a fan to move air where you either don’t have, or don’t want to use, electricity. They are usually powered by a kerosene or alcohol flame or the heat from a hot wood stove. Summary of the Article Below The article below explains how Stirling fans work, including an animation. There is a little bit about the history of Stirling engines used as fans. There’s also a video review I did of a Stirling engine wood stove fan vs a Peltier device wood stove fan. I’ve also included some design advice and tips on how to find plans or engines to copy, in case you want to build your own. Click on any of these links to be taken to a specific section: History of Stirling Engine Fans How Do Stirling Fans Work? How Stirling Fans Should Be Designed An Excellent DIY for Home Machinists Competing Peltier Device Fan Technology History of Stirling Engine Fans First Use of Stirling Fans A long time ago, in the years BE (that’s before electricity), if you lived in a hot climate (India, for example) and you wanted a fan to cool off, you had two choices: Either pay someone to fan you or get a Stirling engine fan. These fans are often called “hot air engine fans” and they are still popular among hobbyists and collectors. An antique Stirling engine (hot air engine) fan at an antique engine show. From Hot Climates to Cold Climates Antique Stirling engine fans for hot climates were the direct predecessors of today’s modern wood stove Stirling engine fans for cold climates. The fans of 100 years ago were generally powered by kerosene or alcohol flames and they moved the air gently around the room. Because they had much less power than a typical electric fan, as soon as electric fans became available, they went out of style. Fans as Art Reproduction antique Stirling engine fan. Since these fans were featured very prominently in the houses of the rich, many of them were developed into works of art. The reproduction antique shown above is still available and would look good in many offices and homes, even if you never ran it. Stirling Fans for Cold Climates Stirling engine fan for the top of a wood stove. A hundred years later, electricity and high powered electric fans were widely available, but there are still places where electricity is either not available at all or where people chose not to use it. A few manufacturers remembered the antique Stirling engine fans and started to build modern versions that were not powered by a kerosene flame, but indirectly powered by the heat of a wood stove. Click here to check the price of the Stirling Stove fan featured above. Solving the Too Hot and Too Cold Problem Anyone who has ever used a wood stove to heat a room knows they have a classic problem: the air becomes too hot close to the wood stove while the rest of the room is still too cold. A Perfect Stirling Engine Application Wood stove fans are a particularly good application of Stirling engine technology because the cooling air of the fan keeps the cold side of the engine cold. That’s important for getting the most power out of a Stirling engine. How Do Stirling Fans Work? Stirling fans work the same way all other Stirling engines. They move the air from the hot side to the cold side and save some of the heat for the next cycle in a regenerator. They typically have an inverted gamma configuration. Imagine turning this animation upside down to get the idea. Animation of two-piston Stirling engine. Imagine the yellow disk is a fan blade and the red part is the part that is heated, either by the wood stove or by a direct flame. Art and Practical Air Moving People buy modern Stirling engine wood stove fans partly because they silently move the air around the room, and also because they are beautiful artworks in motion on the top of your wood stove. How Stirling Fans Should be Designed Antique Stirling engine (hot air) fan. Note the heating lamp below it. At a museum in India. There is a very big reduction in temperature between the temperature of the hot fire inside the stove and the Stirling engine fan sitting on top of it. This means the Stirling engine fan can create less power and move less air than it could if the designers could move the hot side of the engine much closer to the hottest part of the flame.