The reason why fruits can generate electricity is that firstly, fruits contain a lot of fruit acid, which is a good electrolyte, and secondly ,two of the ingredients inserted; in fruit Metal flakes generally have different electrochemical activities. The more active metal flakes can displace hydrogen ions from acidic substances present in the fruit, which can generate charges and cause voltage changes. A primary battery is thus formed.
Under the same conditions, different fruit batteries have different voltages. One of the key factors in the formation of fruit batteries is also the acid content of the fruit.
Energy production from rotten fruits
This is a scientific research project jointly developed by Gagamada University of Indonesia and the Swedish Development Agencyinternational opposition. Project leader Sidi Siamdia, a professor of chemical engineering at Gagamada University, told the reporter that she studied for a master's degree in Sweden. During her graduate studies, she found that Sweden was doing a very good job of converting and using waste. . Therefore, the idea of conducting research on waste valorization in Indonesia came.
In August 2010, after receiving approval from the local government and financial support of 1.6 billion Indonesian rupiahs (1 US dollar equivalent to 8,800 Indonesian rupiahs) from the Swedish Development Agency internationally, Gagamada University opened its doors in Yogyakarta. A factory was installed in the largest fruit market, Gomalibah. After about six months of construction, trial power generation began on February 10 this year.
Every morning, the workers of thefruit market walk past each stall, put the rotten fruit from the day before that the sellers have placed in bamboo baskets and load them into their cars to take them to the factory. There, a small processor grinds and sorts the fruit: the solid fruit residue is used as fertilizer in the fields behind the market while the liquid extracted from the fruit flows into two underground containers where it is used to produce biogas; use biogas to produce electricity.
Reference for the content above? Popular Science China – Can fruit actually generate electricity?