From Coffee Leftover To Pure Biodiesel Fuel

First and Foremost, My school is Sharkya STEM school in Egypt. I learn many skills and form a perfect experiences at different mechanisms such as self learning, working in a teams, computer programming, time management, self confidences, problem solving, … etc.  My dream that I focus on is to be engineer in renewable energy. So, I must at this time to grow my experience at power energy and decreasing of it by high amounts through simple works and useless materials especially which opposite to the environment. So, I tend to make a whole project about saving power energy. I interested in energy as energy is the main factor of countries revolution, therefore; generating energy in an efficient way is the main goal of any developed countries. Like any challenge, it has prior solutions already tried and succeed. From the thermos electric Peltier to galvanic cell and many other solutions that can be a good source of energy in our world. So, I try to find a great solution to make it suitable for applying on real life applications. The solution that I depended on is the production of biodiesel fuel energy from wasted by-products. I used the by-product of the coffee which is rubbished in a high amount every day by people to expose it to many processes. In the first process I extract the oil from the ground coffee. Secondly, I add it to methanol in addition to a catalyst to get biodiesel at the end and by-product which is glycerol. As soon as I finished the prototype, I followed the design requirements to calculate the amount of collected biodiesel that is synthesized from the amount of coffee that I used which is called the biodiesel yield and then I calculated the input heat energy and the output fuel to calculate the efficiency. I performed the test and then I obtained the results. I got 70ML of biodiesel fuel and 10ML of glycerol. I concluded that the production of energy from these amounts of a by-product is a very efficient process regardless of the presence of greenhouse gases and non-renewable energy. So, by that way, I can express my feeling to be a renewable energy engineer.