Electrical Gems #151 | Page 44

FEATURE SPORT FORMULA 1’S GREEN FLAG IT WAS FAMOUSLY DUBBED ‘THE MOST POLLUTING SPORT ON THE PLANET’, HOWEVER, OVER RECENT YEARS. FORMULA 1 HAS TAKEN STEPS TO CLEAN UP ITS ACT. P oor old Danny Ric. On paper, it had all the makings of a sporting story to savour. His debut for his new team, Renault, at his home circuit – it could, and should, have been so much better. However, worryingly poor performances in qualifying set alarm bells ringing. From a grid position of 12th, we all thought it could only get better from there. How wrong we were. Mere seconds into the race, a clip of a kerb and a lost front wing, and Ricciardo’s race was over. And while his second outing, in Bahrain, lasted a bit longer, his engine again didn’t see him through to the chequered flag. While Renault’s engineers will be focused on the car lasting the distance, the sport overall has made great strides over recent years to ensure it has longevity and sustainability. And it all starts with reducing its environmental impact. FORMULA 1: DESTINATION GREEN Formula 1 has traditionally been a testing ground for engineering and technology that may go mainstream, and has, according to one academic paper, come under “increasing pressure to reduce resource consumption and to operate in an environmentally- sustainable manner”. 44 GEMCELL.COM.AU JUN – JUL 2019 And so, for the past 10 years, as well as competing on the track, F1 teams have been locked in a race to be green. Several measures have been taken to help speed up this process. The ban on mid-race refuelling in 2010 forced engineers to optimise chassis and fuel tanks to use fuel more efficiently. Kinetic energy recovery from braking and thermal energy recovery from emissions was also introduced. In 2010, the teams agreed on a goal to significantly reduce emissions over three years. Unlike many similar agreements in the wider world, this one was achieved. An audit in 2013 found that teams’ carbon emissions had decreased by 7%, and there had been a 24% reduction in carbon emissions from the cars themselves. THE V6 EFFECT Subsequently, there was the change from 2.4-litre V8 engines to 1.6-litre V6 engines in 2014 – which was unpopular with traditionalists due to the resulting quieter engines. Dissenters beware, however, as the V6s use 35% less fuel than their souped-up counterparts. Thermal efficiency has become a major focus for F1 engineers since the 2014 changes, and in September 2017, during testing, Mercedes became the first to break the 50% thermal energy efficiency mark. It’s quite a considerable improvement from the 29% maximum efficiency the old V8 engines achieved. With their turbo-hybrid engines, F1 cars are now in touching distance to achieve thermal efficiency levels similar to those used in larger container ships. In keeping with the notion of F1 engineers and manufacturers using the GP circuit as part mainstream testing ground, Mercedes has used an incarnation of its F1 engine in its Project One road car, achieving a thermal efficiency of 40%. So, an enormous amount of work is going on both behind the scenes, and on the track to make Formula 1 – and, in turn, motorsport, and motoring more generally – significantly more energy efficient.