Aloe Vera as an Alternative Energy Source

© 2021 Kantor Jurnal dan Publikasi UPI Article History: Received 30 Jan 2021 Revised 10 Feb 2021 Accepted 11 Feb 2021 Available online 11 Feb 2021 ____________________ Keyword: Aloe vera, Current, Parallel, Series, Voltage. Indonesian Journal of Multidisciplinary Research Journal homepage: http://ejournal.upi.edu/index.php/ IJOMR/ Indonesian Journal of Multidisciplinary Research 1(1) (2021) 29-34 Sihombing et al., Aloe Vera as an Alternative Energy Source | 30 DOI: http://dx.doi.org/10. 17509/xxxxt.vxix pISSN 2776-608X eISSN 2776-5970


INTRODUCTION
Energy is a basic human need. In Indonesia, fuel oil (BBM) is the most widely used energy source in meeting national energy needs. The composition of Indonesia's national energy consumption in 2015, namely BBM: 52.50%; Gas: 19.04%; Coal: 21.52%; Water: 3.73%; Geothermal: 3.01%; and New Energy: 0.2% (Kholiq, 2015). To reduce the use of nonrenewable energy, we are trying to find a solution to overcome this problem, namely by using Aloe vera as a source of electrical energy.
Research related to our research includes optimization using extracting plants, different types of electrodes, open circuit and closed circuit systems (Bhardwaj et al., 2015) optimizing energy sources using Faraday's law (Chong et al., 2019) optimizing energy sources using voltaic cells from various conditions (Choo & Dayou 2013), proving Aloe vera as an energy source (Choo et al., 2014), and the difference in electrodes in different plants (Kholiq, 2015).
We conducted this research to find alternative renewable energy sources and reduce the use of non-renewable energy sources. The method used in this research is an experimental method that aims to determine whether Aloe vera can be an alternative renewable energy source. This research focuses on the type of circuit and the number of sets of electrodes to produce an optimal source of electrical energy. Figure 1 shown the parallel and series circuit electrode. As previously explained, this study uses an experimental method. The tools used are a multimeter, a ruler, a crocodile clip. The materials used are cables, copper pipes, zinc plates, and aloe vera. Zinc-plated and copper piper are used as electrode sets and inserted into the aloe vera leaves at a distance of 1 cm per plate. The area of the zinc plate is 2 x 2,5 cm, and the area of the copper pipe (calculation using the area of the tube covers) is 7.5 cm2. The zinc plate and copper pipe are inserts into the aloe vera 2 cm deep. Then, measure the voltage and current generated using a multimeter by connecting the positive terminal to the copper electrode and the negative terminal to the zinc electrode. 1. Independent variables: the number of electrodes sets and the type of circuit. 2. Controlled variables: distance between electrodes, type of electrode, type of aloe vera, area of zinc plate, and area of copper pipe. 3. Dependent variables: voltage, current, and lamp flame.

METHODS
Overall reaction Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) Figure 3 describe the results of the experimental data. Table 2 describes the measurement of voltage and current with the condition of one leaf chained in series, it is found that the fewer electrodes, the smaller the voltage generated.    Figure 3. Two leaf, parallel. Table 3 describes the measurement of voltage and current with two leaves connected in parallel. It was found that parallel circuits produce a larger current, and adding electrodes will increase the resulting voltage.

Figure 2 and
In the Table 4, it is found that the parallel circuit makes the current bigger, but because the number of electrodes per leaf is small, the resulting voltage is small. From the result of experiments conducted, it was found that aloe vera can be used as a source of electrical energy that shown in Figure 4. This is because in the aloe vera leaves there is a lot of water around Aloe vera which consists of a gel that is 99% water with a pH of 4.5. Table 3. Measurement of voltage and current with two leaves connected in parallel.

CONCLUSION
The conclusion obtained from the results of this study is that the more electrodes, the more voltage is generated. By assembling in parallel, the resulting current is greater, but it is recommended that if arranged in parallel, the number of electrodes is added.

ACKNOWLEDGEMENTS
Gratitude is conveyed to various parties who have played a role in research on Aloe vera as an alternative energy source so that research can become information on alternative energy sources that can be used.

AUTHORS' NOTE
The authors declare that there is no conflict of interest regarding the publication of this article. Authors confirmed that the paper was free of plagiarism.