Design and development of children's seesaw for energy harvesting

Renewable energy systems have gained a vital impact in the following years which has the direct and important factor to decrease the carbon emission and solving the problem of global warming. Renewable energy can be produced by capturing different types of energy from several sources through various methods. A part of these sources of renewable energy relies on capturing and utilizing kinetic energy as a reliable and environmentally friendly source of power. This article introduces a novel design for a seesaw playground game that seeks to generate energy while also improving the efficiency and ease of system installation in the playground area. The overall system comprised using mechanical design, Electrical design and controller which are integrated together for the purpose of energy production. Development in the structure of mechanical parts that combined together to formulate the standard design of seesaw playground has attained in which Two- side seats are linked through a shaft in the dual-sided from the free ends of the central axis and below each seat, a column of a certain length extends vertically and downwards, and connected to a rotating disc. Two revolve rings on both sides, molded together through a shaft and gear box with a rotation ratio one to ten turns of the final rings, in which it’s finally connected into a DC generator. A booster circuit is utilized and connected with the DC generator to maintain the same level of output voltage in which a controller circuit is involved to overcome the problem of output voltage variations. The produced electricity is varying between (1.8-5) W/h that it considered an important for power generation in the activity park. Despite the relatively low gathered power, such systems are considered important and applicable by supporting the green zone area with the power demands for the small devices and lightening.