Search results
Results from the WOW.Com Content Network
Example of hand held electric heat gun Commercial heat gun kit Flame heat gun for shrinkwrapping helicopter. A heat gun is a device used to emit a stream of hot air, usually at temperatures between 100 and 550 °C (373 and 823 K; 212 and 1,022 °F), with some hotter models running around 760 °C (1,030 K; 1,400 °F), which can be held by hand.
The heat sink thermal resistance model consists of two resistances, namely the resistance in the heat sink base, , and the resistance in the fins, . The heat sink base thermal resistance, , can be written as follows if the source is a uniformly applied the heat sink base. If it is not, then the base resistance is primarily spreading resistance:
AOL latest headlines, entertainment, sports, articles for business, health and world news.
Infrared technology finds hot spots in the substation where electrical energy is being converted to heat, [54] which indicates a problem and can cause additional damage from the high heat. Dissolved gas analysis can tell when an oil-insulated transformer needs to have the oil filtered or replace, and also detect other issues.
Cogeneration or CHP (Combined Heat and Power) technology, the simultaneous production of electricity and useful heat from the same fuel source, improves the overall efficiency by using waste heat for heating purposes. Older, less efficient thermal power stations are being decommissioned or adapted to use cleaner and renewable energy sources.
A 1948 advertisement for a Weller soldering gun. Pistol-grip electrically-heated soldering tools had been used since the 1920s. In 1941 Carl E. Weller invented and later obtained U.S. patent 2,405,866 [1] for a transformer-based soldering tool which heated and cooled rapidly, [2] essentially as described in this article.
The ADS works by firing a high-powered (100 kW output power) [13] beam of 95 GHz waves at a target, which corresponds to a wavelength of 3.2 mm. [14] The ADS millimeter wave energy works on a principle similar to a microwave oven, exciting the water and fat molecules in the skin, and instantly heating them via dielectric heating.
A plasma torch (also known as a plasma arc, plasma gun, plasma cutter, or plasmatron) is a device for generating a directed flow of plasma. [ 1 ] [ 2 ] [ 3 ] The plasma jet can be used for applications including plasma cutting , plasma arc welding , plasma spraying , and plasma gasification for waste disposal.