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Offline Jeremy RUK  
#1 Posted : 18 September 2014 07:13:45(UTC)
Jeremy


Posts: 7,618

Marina Bay in numbers :
(with 1 being the easiest, 5 being the most severe)
INTERNAL COMBUSTION ENGINE 2
MGU-K 4
MGU-H 3
BATTERY 5
FUEL CONSUMPTION 5
ENERGY RECOVERY 4

Marina Bay overview:

Rémi Taffin, Renault Sport F1 head of track operations:
Singapore stands in stark contrast to the high speed tracks we have just visited. It has 23 corners, the highest number of any track on the calendar, with several hard braking points over the lap. These factors combine to bring the average speed down to around 170kph, with just 45% of the lap spent at wide open throttle.
The ICE and turbo are therefore given an easy time here. The Energy Store and MGU-K, however, are really put through their paces. Each braking event is long and hard, particularly around the ‘hotel’ section through the grandstands, where the K will be able to recover enough energy to keep the battery at a relatively high level of charge throughout the lap. In contrast, the MGU-H is used a little less as the short straights between the corners do not really offer ample time for the exhaust to develop a steady flow.

These short bursts of power naturally require good torque response and driveability but they also bring fuel consumption well up. In fact we will use the largest amount of fuel per lap over the season here and we will be right on the limit of the 100kg permitted. To put this in context, last year we used 150kg of fuel – over 30% more. Here, more than anywhere else, shows the advances we have made in efficiency.
Singapore should suit the Renault Energy F1-2014 far more than the previous two tracks. We’ve made good progress in energy recovery and management and these two elements are key to success here. We know the competition will still have an edge, but we expect to be closer here than we were at Monza. Getting a good position in qualifying, which should be possible, will set the tone for the race so the focus will be to maximize the one-lap pace and start as far forward as possible.

News from Total

Originally developed as part of our research in Formula 1 with Renault Sport F1, numerical simulation has also become essential for the development of commercial product ranges. 3D modeling and reproduction of the operation of a power plant can observe the behaviour of a lubricant and its influence on its mechanical environment at a macroscopic and molecular level. The delicate balance between control reliability and performance gain can therefore be scrutinized and optimized.

Renault Energy F1-2014 Fast Facts:

• Singapore has a notoriously humid climate and the water content in the air can be an oppressive 90%. Luckily, running in the evening will see the relative humidity reduce as the sun goes down. The electrical components of the PU will therefore be insulated against moisture and, in case of rain, the water will be diverted away using special ducts. Having had the experience of Belgium and Malaysia, however, we do not expect there to be any problems.
• The ICE is not put under a lot of pressure over one lap so an older unit, potentially one towards the end of its life, will be used over the weekend. This will save a newer unit for the tracks where power is more crucial, namely Suzuka and Interlagos.
• Any team that played its gear ratio change joker in Spa or Monza will have to live with the longer gears for the rest of the season. Having learnt how to maximise our current power unit, this may not turn be a disadvantage in Singapore, where shorter gear ratios have typically been thought to be more beneficial in optimising acceleration between turns. Better drivability and higher torque capacity could offer a better mix with long ratios.
• The Marina Bay circuit has 23 corners, of which 10 are taken in third or second, giving plenty of opportunity for the MGU-K to recover energy. Corner 3 is a good example of a ‘typical’ Singapore corner. The driver brakes down from around 290kph at the end of the pit straight, shifting down the gears before a quick blip of the throttle for turn 2. He then brakes even further, shifting down to second gear for turn 3. In contrast Singapore has just two short straights: the pit straight and then the curved straight between turns five and seven, which shoots down Raffles Boulevard with its luxury hotels and boutiques. This short straight – only 700m – will see the driver touch the 300kph mark, and give the MGU-H one of the few chances to recover energy.
• Fuel consumption in Singapore will be high, but engineers may be able to use less than expected if there is a safety car period, when the driver may be able to turn settings down and conserve fuel. Although every race so far held in Singapore has had a safety car, it’s by no means a given so there needs to be enough flexibility in the strategy to deal with every eventuality.
Offline Jeremy RUK  
#2 Posted : 18 September 2014 07:16:46(UTC)
Jeremy


Posts: 7,618

Engine analysis:

At the end of 2013 the FIA Formula One World Championship bid farewell to its normally aspirated V8s and embraced brand new Power Units that combined a hybrid V6 turbo engine with two energy recovery systems – the MGU-K that works under braking, and MGU-H which harvests energy at the exhaust. Monza’s 2014 race offered an ideal opportunity to compare and analyse the performance of modern low downforce-spec F1 cars with their previous counterparts.

The recent Grand Prix emphasised an important point: the 2014 regulations have greatly enhanced the cars’ efficiency while maintaining – and even increasing – their level of performance.

We take a look at the main gains.

1. A two-second gain in a single year
2013 saw F1 cars fitted with normally aspirated V8s delivering around 800bhp (that’s 590kW without the extra 60kW provided by the KERS). Monza’s speed traps recorded single-seaters clock around 340kph, with pole-sitter Sebastian Vettel posting a lap of 1:23.755 in qualifying aboard his Infiniti Red Bull Racing-Renault. A year later the fastest Q3 time was 1:24.109, achieved with a car weighing 50kg heavier – a 1.8secs deficit – and using harder tyres. Once these differences have been accounted for and the times corrected, this year’s lap represents a two-second gain over the course of 12 months.

2. Fuel consumption down to 1.9kg per lap
The 2014 regulations also brought another revolution with a 35% reduction in the amount of fuel permitted for each race (100kg against 150kg last year). It’s been made possible thanks to the V6 engine’s high degree of hybridisation: 20% of the power is now electric and comes from the energy recovered under braking and harvested at the exhaust. The average Monza consumption rate therefore went from 2.5kg per lap in 2013 to under 1.9kg a lap this year. With the same mass, the corrected 2014 time is faster.

3. An F1 car’s energy source distribution
2013
The vast majority of energy available came from the 160kg of fuel used by the car. Power generated by fossil energy and transferred to the wheels reached 30%, while the remainder escaped in the air. A single KERS unit also ensured the share of electric power remained quite limited.
2014
With a 100kg restriction in fuel mass, the share of electric power has grown significantly. A greater percentage is now transferred to the wheels, which vastly improves the overall energy efficiency. Electric energy is much more important (4MJ) than it was last year. It comes from two different sources: braking and the exhaust.

4. Better energy efficiency
In 2013 an F1 car’s efficiency was rated at 30%, which has increased to 40% in 2014. This has been made possible by reducing the internal combustion engine’s displacement (and amount of friction), the introduction of a turbocompressor, and cutting the number of revs (from 18,000 to 13,000). The efficiency of a car fitted with an internal combustion engine cannot exceed 50%. Only a fully electric engine can achieve a much higher efficiency. To do so, however, requires 25 tons of batteries!

Additional stats and facts
• 30% fuel mass reduction between 2013 and 2014.
• 10 points: the efficiency improvement of an F1 car between 2013 and 2014.
• In qualifying, the 25kg battery delivers an extra 10% of energy, which amounts to 200g in fuel.
While overtaking during the race, Daniel Ricciardo’s Infiniti Red Bull Racing-Renault reached 362.1kph, smashing the 2013 top speed by an impressive 20kph.
Offline -Gazeratti-  
#3 Posted : 18 September 2014 09:23:16(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

UserPostedImage
Offline -Gazeratti-  
#4 Posted : 20 September 2014 11:44:44(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

Alonso....

FP1: 1st
FP2: 2nd
FP3: 1st

What have they discovered in the car in 2 weeks?

Offline foxspeed  
#5 Posted : 20 September 2014 14:12:27(UTC)
foxspeed


Posts: 21,609
Location: retour dans la bulle

Originally Posted by: Team Inferno Go to Quoted Post
Alonso....

FP1: 1st
FP2: 2nd
FP3: 1st

What have they discovered in the car in 2 weeks?



they have put a merc engine in it Wink

0.5 across top 8!
Offline Marc_250  
#6 Posted : 20 September 2014 14:42:25(UTC)
Marc_250


Posts: 5,118

As Skys qualy show ended was chucking it down....Could be fun if that happens during the race..well if they don't red flag/safety car it.
Offline -Gazeratti-  
#7 Posted : 22 September 2014 10:55:43(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

Full reset then down to the last race of the season. whos your money on now?
Offline sunnylunn  
#8 Posted : 22 September 2014 12:31:19(UTC)
sunnylunn


Posts: 897
Location: Renault owner 😀

hoping Lewis takes it, be nice if both Mercs were reliable for the remaining races so Lewis can beat Nico fair and square.
Offline Jeremy RUK  
#9 Posted : 22 September 2014 13:19:53(UTC)
Jeremy


Posts: 7,618

Race report:

Infiniti Red Bull Racing-Renault secured a double podium in today’s Singapore Grand Prix. Sebastian Vettel crossed the line in second position, just one second ahead of Daniel Ricciardo at the most physically and mechanically demanding race of the year.
The duo held off Fernando Alonso at the end to score the team’s second double podium of the year.
Jean-Eric Vergne had a storming end to the race to finish sixth on the road for Scuderia Toro Rosso and put three Renault-powered cars into the top ten. Lotus F1 Team had its strongest race for some time, with Pastor Maldonado and Romain Grosjean fighting for position with the Saubers, Toro Rossos and McLarens at times. The duo finished 12th and 13th respectively.
Daniil Kvyat finished 14th ahead of Caterham F1 Team’s Marcus Ericsson, who out-raced both Marussias on his Singapore GP debut.

Key race points:
• Sebastian Vettel moved into second at the start, and maintained position over Alonso and Ricciardo throughout the pit stops and the safety car period. The reigning world champion elected not to change tyres after the safety car was withdrawn and withstood intense pressure from both drivers to secure second position, his fifth consecutive visit to the Singapore GP podium.
• Daniel Ricciardo lost one place to Fernando Alonso at the start, but regained it after the Spaniard pitted under the safety car. He finished sandwiched between Vettel and Alonso in one of the closest finishes so far this year.
• Jean-Eric Vergne steadily rose through the field but it was the final 10 laps that stood out for the Frenchman. Using new tyres, he went from 12th to sixth, taking Grosjean, Maldonado, Hulkenberg, Raikkonen and then Bottas. Daniil Kvyat finished in 14th.
• Caterham F1 Team’s Kamui Kobayashi did not start the race after an ERS problem hit on the parade lap.

Rémi Taffin, Head of Track Operations:

A great result at the most physically and mechanically demanding event of the year for Red Bull and Renault. Two drivers on the podium is really the best we could have hoped for. This weekend we have faced a number of issues but we have solved each one methodically to get both cars to the finish, and in a strong position.

An equally good job from the guys at Toro Rosso, who managed the energy and fuel extremely well to give JEV enough at the end to secure sixth on the road. Likewise, Lotus had a very strong race that demonstrated the performance potential of the chassis-engine package a lot more clearly. We hope to build on this in Suzuka and outrace the teams we were racing today.

One of the few negative points was Kamui’s failure on the parade lap. Unfortunately his car developed an ERS problem and he had to pull off, which is a shame as Marcus demonstrated a strong relative pace and was able to out-race both Marussias today.
Across the board, therefore, each engine-chassis team has worked together to provide the most competitive package and overcome most small problems we faced. We can be relatively satisfied with the results and can look forward with optimism to Suzuka.
Offline foxspeed  
#10 Posted : 22 September 2014 17:55:28(UTC)
foxspeed


Posts: 21,609
Location: retour dans la bulle

the result the championship needed gives it a bit more of a level on unreliability for both

be interesting to see all the engine penalties stacking up over the next few races
Offline -Gazeratti-  
#11 Posted : 22 September 2014 18:41:44(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

Everyone will be starting at the back LOL
Offline foxspeed  
#12 Posted : 22 September 2014 19:07:57(UTC)
foxspeed


Posts: 21,609
Location: retour dans la bulle

Originally Posted by: Team Inferno Go to Quoted Post
Everyone will be starting at the back LOL


the top 10 start in 20th position Tongue
Offline -Gazeratti-  
#13 Posted : 22 September 2014 20:47:50(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

will be a tight squeeze all in one grid slot Wink
Offline foxspeed  
#14 Posted : 22 September 2014 20:50:39(UTC)
foxspeed


Posts: 21,609
Location: retour dans la bulle

Originally Posted by: Team Inferno Go to Quoted Post
will be a tight squeeze all in one grid slot Wink


10 abreast on the first corner LOL LOL Clown
Offline -Gazeratti-  
#15 Posted : 22 September 2014 20:59:53(UTC)
-Gazeratti-


Posts: 1,406
Location: www.renaultsportclub.co.uk

Be interesting, although maldonado will have them all off Wink
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