Section 2 i) Initial Research Work - Gewerbliche Schule Ravensburg

Future projectsRAFI looks into new solder pastes often to save energy. They save energy byreducing its temperature which is needed to heat up and solder componentstogether.Solar panels are also put in place around the factory to reduce the amount ofelectricity. When sunlight of the right energy level hits the n-type layer, which is ontop of the solar cell, it excites some of the free electrons, which break loose fromtheir natural state, pairs and flow across the boundary between the layers to createa current. This only works if the two layers of the solar cell are pressed directly intoeach other. This is usually accomplished by fabricating bothsides as part of the same process.Production process set.RAFI has a triangle shape production process that they follow inplan to reduce their energy. This is set by them picking the most favoured optionsfirst and then work their way down to their least favoured option.These options are –• Prevent• Minimize• Re-use• Recycle• Energy recovery• DisposalQuestions asked:Waste – RAFI1. What waste is produced?Answer: Both solid and liquid waste, production waste and waste from packaging.Hazardous waste includes used oil and waste water. We produce 250 tonnes ofmetal waste each year, which is sorted on site ready for recycling.2. Is there anything that cannot be recycled?Answer: Yes, oil and anything contaminated by oil. This waste is separated fromall other waste and disposed of safely.3. Are you aware of how much waste you produce?24