Performance of Mechanical Energy Harvesting Unit for Generating Electricity for Portal Gate System

Dewanto, Joni and Soegihardjo, Oegik (2021) Performance of Mechanical Energy Harvesting Unit for Generating Electricity for Portal Gate System. Journal of ICT, Design, Engineering and Technological Science, 4 (1). pp. 6-11. ISSN 2604 - 2673

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Abstract

Abstract--- The portal gate systems for parking area need electricity for opening/closing the portal (barrier crossbar) and printing the parking ticket. The mechanical energy harvesting unit presented on this paper is designed for supplying electrical energy needed by the portal gate system for its operation. The mechanical energy harvesting unit converted linear movement of the slider into rotating movement of the fly wheel using rack and pinion. The energy stored in the fly wheel is used to turn a small electric generator attached to the energy harvesting unit that provided electricity for the portal gate system. This energy harvesting unit is designed as a breakthrough to produce electrical energy by utilizing the weight of the vehicle that enters the parking space. The linear movement of the slider is gained from the weight of the vehicle that passed on the mechanical energy harvesting unit. This system is appropriate for a stand alone portal gate systems. Three categories of passanger cars (small, medium and large) each with mass of 1300 kg, 1700 kg and 2000 kg respectively were used in the experiment. The three vehicles used for this experiments were able to produce a maximum rotation of the harvesting units electric generator for 2500 rpm, 2890 rpm and 3140 rpm, respectively. Testing of the harvesting units electric generator was done with a continuous rotation. The electrical loads were taken from LED lights with voltage of 24 Volt, 18 Volt and 12 Volt produces power of 19 Volt x 3.6 mAmp (4000 rpm), 17 Volt x 4.3 mAmp (3500 rpm) and 12 Volt x 11 mAmp (2400 rpm) respectively. Initial testing of the mechanical energy harvesting unit shows that this equipment is capable of producing the required electrical energy.

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