Tapping excess heat from a camp stove for charging power

New research may make it possible to keep electronic devices powered with another piece of equipment you're likely to bring with you while exploring the great outdoors: camping stoves. The work focuses on using the excess heat produced by stoves to create a thermoacoustic engine, which converts thermal energy into acoustic energy. This acoustic energy can then be transformed into mechanical or electrical energy. When optimized, these engines can generate power ranging from tens to thousands of watts, depending on their size. https://ift.tt/AHv9bUf