Development of a Hybrid Energy Harvesting Electric Travel Bag for Portable Electronic Charging

Your reliance on mobile phones, laptops and other handheld devices is becoming something of a matter of fact as you get intrinsic need to charge there things while traveling and having no access to grid electricity. The following study designed and investigated a hybrid energy harvesting electric travel bag integrating a polycrystalline solar panel, piezoelectric elements, battery, inverter and charging outputs. The qualitative case study was augmented by descriptive prototype measures. Methods included interviews with five electrical engineering informants, direct observations while interacting with a prototype, documentation of the design and testing process, and records from controlled experiments involving piezoelectric loading (up to 417 N), solar-panel battery charging (0-10A charger current), laptop charging (up to 61W load per laptop placed directly on top of the platform), and inverter loading (150 VA inverter driving resistive loads). Based on the interviews, you discovered that users want an easy-to-transport energy source that is reliable, safe and portable. It was observed and documented that energy inputs of solar and mechanical could be incorporated together in a transportable system. A technical record indicated the battery state of charge was comprised of the following where 18 V solar panel increased it from 0% to full over five test days & 5 V Increase a smaller battery (a kiosk) from 0% to full in two test days. The piezoelectric subsystem generated greater voltage as the mechanical load increased, at 5 kg the average value reached 3.814 V for the parallel configuration. Testing was carried out with a laptop, which resulted in approximately a 19.8% state of charge boost after 20 minutes, and during inverter testing the metal-air power packs operated lower load over a longer period of time. Consequently, this research establishes that the Electric Travel Bag appears to be a viable additional portable charging system for use with renewable energy sources; however, various improvements in charging efficiency, power regulation, arrangement of components for prolonged usage without over-weight and electrical safety measures have potentiality as future works.

Electric Travel Bag; Solar Panel; Piezoelectric Energy Harvesting; Portable Charging System; Renewable Energy

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